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From GitBox <...@apache.org>
Subject [GitHub] StephanEwen closed pull request #6728: [FLINK-10383] [s3] (release-1.6) Prevent Hadoop configs on classpath to interfere with S3 configuration
Date Tue, 25 Sep 2018 07:27:03 GMT
StephanEwen closed pull request #6728: [FLINK-10383] [s3] (release-1.6) Prevent Hadoop configs on classpath to interfere with S3 configuration
URL: https://github.com/apache/flink/pull/6728
 
 
   

This is a PR merged from a forked repository.
As GitHub hides the original diff on merge, it is displayed below for
the sake of provenance:

As this is a foreign pull request (from a fork), the diff is supplied
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diff --git a/flink-filesystems/flink-s3-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java b/flink-filesystems/flink-s3-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java
index 86822de426d..104a3ee5adc 100644
--- a/flink-filesystems/flink-s3-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java
+++ b/flink-filesystems/flink-s3-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java
@@ -652,21 +652,9 @@ private void handleDeprecation() {
     }
   }
  
-  static{
-    //print deprecation warning if hadoop-site.xml is found in classpath
-    ClassLoader cL = Thread.currentThread().getContextClassLoader();
-    if (cL == null) {
-      cL = Configuration.class.getClassLoader();
-    }
-    if(cL.getResource("hadoop-site.xml")!=null) {
-      LOG.warn("DEPRECATED: hadoop-site.xml found in the classpath. " +
-          "Usage of hadoop-site.xml is deprecated. Instead use core-site.xml, "
-          + "mapred-site.xml and hdfs-site.xml to override properties of " +
-          "core-default-shaded.xml, mapred-default.xml and hdfs-default.xml " +
-          "respectively");
-    }
+  static {
     addDefaultResource("core-default-shaded.xml");
-    addDefaultResource("core-site.xml");
+    addDefaultResource("core-default-testing.xml");
   }
   
   private Properties properties;
diff --git a/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-default-testing.xml b/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-default-testing.xml
new file mode 100644
index 00000000000..b875e97be2a
--- /dev/null
+++ b/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-default-testing.xml
@@ -0,0 +1,2312 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<!-- Do not modify this file directly.  Instead, copy entries that you -->
+<!-- wish to modify from this file into core-site.xml and change them -->
+<!-- there.  If core-site.xml does not already exist, create it.      -->
+
+<configuration>
+
+<!--- global properties -->
+
+<property>
+  <name>hadoop.common.configuration.version</name>
+  <value>0.23.0</value>
+  <description>version of this configuration file</description>
+</property>
+
+<property>
+  <name>hadoop.tmp.dir</name>
+  <value>/tmp/hadoop-${user.name}</value>
+  <description>A base for other temporary directories.</description>
+</property>
+
+<property>
+  <name>io.native.lib.available</name>
+  <value>true</value>
+  <description>Controls whether to use native libraries for bz2 and zlib
+    compression codecs or not. The property does not control any other native
+    libraries.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.filter.initializers</name>
+  <value>org.apache.hadoop.http.lib.StaticUserWebFilter</value>
+  <description>A comma separated list of class names. Each class in the list
+  must extend org.apache.hadoop.http.FilterInitializer. The corresponding
+  Filter will be initialized. Then, the Filter will be applied to all user
+  facing jsp and servlet web pages.  The ordering of the list defines the
+  ordering of the filters.</description>
+</property>
+
+<!--- security properties -->
+
+<property>
+  <name>hadoop.security.authorization</name>
+  <value>false</value>
+  <description>Is service-level authorization enabled?</description>
+</property>
+
+<property>
+  <name>hadoop.security.instrumentation.requires.admin</name>
+  <value>false</value>
+  <description>
+    Indicates if administrator ACLs are required to access
+    instrumentation servlets (JMX, METRICS, CONF, STACKS).
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.authentication</name>
+  <value>simple</value>
+  <description>Possible values are simple (no authentication), and kerberos
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping</name>
+  <value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
+  <description>
+    Class for user to group mapping (get groups for a given user) for ACL.
+    The default implementation,
+    org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback,
+    will determine if the Java Native Interface (JNI) is available. If JNI is
+    available the implementation will use the API within hadoop to resolve a
+    list of groups for a user. If JNI is not available then the shell
+    implementation, ShellBasedUnixGroupsMapping, is used.  This implementation
+    shells out to the Linux/Unix environment with the
+    <code>bash -c groups</code> command to resolve a list of groups for a user.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.interface</name>
+  <description>
+    The name of the Network Interface from which the service should determine
+    its host name for Kerberos login. e.g. eth2. In a multi-homed environment,
+    the setting can be used to affect the _HOST subsitution in the service
+    Kerberos principal. If this configuration value is not set, the service
+    will use its default hostname as returned by
+    InetAddress.getLocalHost().getCanonicalHostName().
+
+    Most clusters will not require this setting.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.nameserver</name>
+  <description>
+    The host name or IP address of the name server (DNS) which a service Node
+    should use to determine its own host name for Kerberos Login. Requires
+    hadoop.security.dns.interface.
+
+    Most clusters will not require this setting.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.log-slow-lookups.enabled</name>
+  <value>false</value>
+  <description>
+    Time name lookups (via SecurityUtil) and log them if they exceed the
+    configured threshold.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.log-slow-lookups.threshold.ms</name>
+  <value>1000</value>
+  <description>
+    If slow lookup logging is enabled, this threshold is used to decide if a
+    lookup is considered slow enough to be logged.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.secs</name>
+  <value>300</value>
+  <description>
+    This is the config controlling the validity of the entries in the cache
+    containing the user->group mapping. When this duration has expired,
+    then the implementation of the group mapping provider is invoked to get
+    the groups of the user and then cached back.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.negative-cache.secs</name>
+  <value>30</value>
+  <description>
+    Expiration time for entries in the the negative user-to-group mapping
+    caching, in seconds. This is useful when invalid users are retrying
+    frequently. It is suggested to set a small value for this expiration, since
+    a transient error in group lookup could temporarily lock out a legitimate
+    user.
+
+    Set this to zero or negative value to disable negative user-to-group caching.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.warn.after.ms</name>
+  <value>5000</value>
+  <description>
+    If looking up a single user to group takes longer than this amount of
+    milliseconds, we will log a warning message.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.background.reload</name>
+  <value>false</value>
+  <description>
+    Whether to reload expired user->group mappings using a background thread
+    pool. If set to true, a pool of
+    hadoop.security.groups.cache.background.reload.threads is created to
+    update the cache in the background.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.background.reload.threads</name>
+  <value>3</value>
+  <description>
+    Only relevant if hadoop.security.groups.cache.background.reload is true.
+    Controls the number of concurrent background user->group cache entry
+    refreshes. Pending refresh requests beyond this value are queued and
+    processed when a thread is free.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.connection.timeout.ms</name>
+  <value>60000</value>
+  <description>
+    This property is the connection timeout (in milliseconds) for LDAP
+    operations. If the LDAP provider doesn't establish a connection within the
+    specified period, it will abort the connect attempt. Non-positive value
+    means no LDAP connection timeout is specified in which case it waits for the
+    connection to establish until the underlying network times out.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.read.timeout.ms</name>
+  <value>60000</value>
+  <description>
+    This property is the read timeout (in milliseconds) for LDAP
+    operations. If the LDAP provider doesn't get a LDAP response within the
+    specified period, it will abort the read attempt. Non-positive value
+    means no read timeout is specified in which case it waits for the response
+    infinitely.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.url</name>
+  <value></value>
+  <description>
+    The URL of the LDAP server to use for resolving user groups when using
+    the LdapGroupsMapping user to group mapping.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl</name>
+  <value>false</value>
+  <description>
+    Whether or not to use SSL when connecting to the LDAP server.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl.keystore</name>
+  <value></value>
+  <description>
+    File path to the SSL keystore that contains the SSL certificate required
+    by the LDAP server.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl.keystore.password.file</name>
+  <value></value>
+  <description>
+    The path to a file containing the password of the LDAP SSL keystore.
+
+    IMPORTANT: This file should be readable only by the Unix user running
+    the daemons.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.bind.user</name>
+  <value></value>
+  <description>
+    The distinguished name of the user to bind as when connecting to the LDAP
+    server. This may be left blank if the LDAP server supports anonymous binds.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.bind.password.file</name>
+  <value></value>
+  <description>
+    The path to a file containing the password of the bind user.
+
+    IMPORTANT: This file should be readable only by the Unix user running
+    the daemons.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.base</name>
+  <value></value>
+  <description>
+    The search base for the LDAP connection. This is a distinguished name,
+    and will typically be the root of the LDAP directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.filter.user</name>
+  <value>(&amp;(objectClass=user)(sAMAccountName={0}))</value>
+  <description>
+    An additional filter to use when searching for LDAP users. The default will
+    usually be appropriate for Active Directory installations. If connecting to
+    an LDAP server with a non-AD schema, this should be replaced with
+    (&amp;(objectClass=inetOrgPerson)(uid={0}). {0} is a special string used to
+    denote where the username fits into the filter.
+
+    If the LDAP server supports posixGroups, Hadoop can enable the feature by
+    setting the value of this property to "posixAccount" and the value of
+    the hadoop.security.group.mapping.ldap.search.filter.group property to
+    "posixGroup".
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.filter.group</name>
+  <value>(objectClass=group)</value>
+  <description>
+    An additional filter to use when searching for LDAP groups. This should be
+    changed when resolving groups against a non-Active Directory installation.
+
+    See the description of hadoop.security.group.mapping.ldap.search.filter.user
+    to enable posixGroups support.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.attr.member</name>
+  <value>member</value>
+  <description>
+    The attribute of the group object that identifies the users that are
+    members of the group. The default will usually be appropriate for
+    any LDAP installation.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.attr.group.name</name>
+  <value>cn</value>
+  <description>
+    The attribute of the group object that identifies the group name. The
+    default will usually be appropriate for all LDAP systems.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.posix.attr.uid.name</name>
+  <value>uidNumber</value>
+  <description>
+    The attribute of posixAccount to use when groups for membership.
+    Mostly useful for schemas wherein groups have memberUids that use an
+    attribute other than uidNumber.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.posix.attr.gid.name</name>
+  <value>gidNumber</value>
+  <description>
+    The attribute of posixAccount indicating the group id.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.directory.search.timeout</name>
+  <value>10000</value>
+  <description>
+    The attribute applied to the LDAP SearchControl properties to set a
+    maximum time limit when searching and awaiting a result.
+    Set to 0 if infinite wait period is desired.
+    Default is 10 seconds. Units in milliseconds.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.providers</name>
+  <value></value>
+  <description>
+    Comma separated of names of other providers to provide user to group
+    mapping. Used by CompositeGroupsMapping.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.providers.combined</name>
+  <value>true</value>
+  <description>
+    true or false to indicate whether groups from the providers are combined or
+    not. The default value is true. If true, then all the providers will be
+    tried to get groups and all the groups are combined to return as the final
+    results. Otherwise, providers are tried one by one in the configured list
+    order, and if any groups are retrieved from any provider, then the groups
+    will be returned without trying the left ones.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.service.user.name.key</name>
+  <value></value>
+  <description>
+    For those cases where the same RPC protocol is implemented by multiple
+    servers, this configuration is required for specifying the principal
+    name to use for the service when the client wishes to make an RPC call.
+  </description>
+</property>
+
+
+<property>
+    <name>hadoop.security.uid.cache.secs</name>
+    <value>14400</value>
+    <description>
+        This is the config controlling the validity of the entries in the cache
+        containing the userId to userName and groupId to groupName used by
+        NativeIO getFstat().
+    </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.protection</name>
+  <value>authentication</value>
+  <description>A comma-separated list of protection values for secured sasl
+      connections. Possible values are authentication, integrity and privacy.
+      authentication means authentication only and no integrity or privacy;
+      integrity implies authentication and integrity are enabled; and privacy
+      implies all of authentication, integrity and privacy are enabled.
+      hadoop.security.saslproperties.resolver.class can be used to override
+      the hadoop.rpc.protection for a connection at the server side.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.saslproperties.resolver.class</name>
+  <value></value>
+  <description>SaslPropertiesResolver used to resolve the QOP used for a
+      connection. If not specified, the full set of values specified in
+      hadoop.rpc.protection is used while determining the QOP used for the
+      connection. If a class is specified, then the QOP values returned by
+      the class will be used while determining the QOP used for the connection.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.sensitive-config-keys</name>
+  <value>secret$,password$,ssl.keystore.pass$,fs.s3.*[Ss]ecret.?[Kk]ey,fs.azure.account.key.*,dfs.webhdfs.oauth2.[a-z]+.token,hadoop.security.sensitive-config-keys</value>
+  <description>A comma-separated list of regular expressions to match against
+      configuration keys that should be redacted where appropriate, for
+      example, when logging modified properties during a reconfiguration,
+      private credentials should not be logged.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.workaround.non.threadsafe.getpwuid</name>
+  <value>true</value>
+  <description>Some operating systems or authentication modules are known to
+  have broken implementations of getpwuid_r and getpwgid_r, such that these
+  calls are not thread-safe. Symptoms of this problem include JVM crashes
+  with a stack trace inside these functions. If your system exhibits this
+  issue, enable this configuration parameter to include a lock around the
+  calls as a workaround.
+
+  An incomplete list of some systems known to have this issue is available
+  at http://wiki.apache.org/hadoop/KnownBrokenPwuidImplementations
+  </description>
+</property>
+
+<property>
+  <name>hadoop.kerberos.kinit.command</name>
+  <value>kinit</value>
+  <description>Used to periodically renew Kerberos credentials when provided
+  to Hadoop. The default setting assumes that kinit is in the PATH of users
+  running the Hadoop client. Change this to the absolute path to kinit if this
+  is not the case.
+  </description>
+</property>
+
+<property>
+    <name>hadoop.kerberos.min.seconds.before.relogin</name>
+    <value>60</value>
+    <description>The minimum time between relogin attempts for Kerberos, in
+    seconds.
+    </description>
+</property>
+
+<property>
+  <name>hadoop.security.auth_to_local</name>
+  <value></value>
+  <description>Maps kerberos principals to local user names</description>
+</property>
+
+<!-- i/o properties -->
+<property>
+  <name>io.file.buffer.size</name>
+  <value>4096</value>
+  <description>The size of buffer for use in sequence files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>io.bytes.per.checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  io.file.buffer.size.</description>
+</property>
+
+<property>
+  <name>io.skip.checksum.errors</name>
+  <value>false</value>
+  <description>If true, when a checksum error is encountered while
+  reading a sequence file, entries are skipped, instead of throwing an
+  exception.</description>
+</property>
+
+<property>
+  <name>io.compression.codecs</name>
+  <value></value>
+  <description>A comma-separated list of the compression codec classes that can
+  be used for compression/decompression. In addition to any classes specified
+  with this property (which take precedence), codec classes on the classpath
+  are discovered using a Java ServiceLoader.</description>
+</property>
+
+<property>
+  <name>io.compression.codec.bzip2.library</name>
+  <value>system-native</value>
+  <description>The native-code library to be used for compression and
+  decompression by the bzip2 codec.  This library could be specified
+  either by by name or the full pathname.  In the former case, the
+  library is located by the dynamic linker, usually searching the
+  directories specified in the environment variable LD_LIBRARY_PATH.
+
+  The value of "system-native" indicates that the default system
+  library should be used.  To indicate that the algorithm should
+  operate entirely in Java, specify "java-builtin".</description>
+</property>
+
+<property>
+  <name>io.serializations</name>
+  <value>org.apache.hadoop.io.serializer.WritableSerialization, org.apache.hadoop.io.serializer.avro.AvroSpecificSerialization, org.apache.hadoop.io.serializer.avro.AvroReflectSerialization</value>
+  <description>A list of serialization classes that can be used for
+  obtaining serializers and deserializers.</description>
+</property>
+
+<property>
+  <name>io.seqfile.local.dir</name>
+  <value>${hadoop.tmp.dir}/io/local</value>
+  <description>The local directory where sequence file stores intermediate
+  data files during merge.  May be a comma-separated list of
+  directories on different devices in order to spread disk i/o.
+  Directories that do not exist are ignored.
+  </description>
+</property>
+
+<property>
+  <name>io.map.index.skip</name>
+  <value>0</value>
+  <description>Number of index entries to skip between each entry.
+  Zero by default. Setting this to values larger than zero can
+  facilitate opening large MapFiles using less memory.</description>
+</property>
+
+<property>
+  <name>io.map.index.interval</name>
+  <value>128</value>
+  <description>
+    MapFile consist of two files - data file (tuples) and index file
+    (keys). For every io.map.index.interval records written in the
+    data file, an entry (record-key, data-file-position) is written
+    in the index file. This is to allow for doing binary search later
+    within the index file to look up records by their keys and get their
+    closest positions in the data file.
+  </description>
+</property>
+
+<!-- file system properties -->
+
+<property>
+  <name>fs.defaultFS</name>
+  <value>file:///</value>
+  <description>The name of the default file system.  A URI whose
+  scheme and authority determine the FileSystem implementation.  The
+  uri's scheme determines the config property (fs.SCHEME.impl) naming
+  the FileSystem implementation class.  The uri's authority is used to
+  determine the host, port, etc. for a filesystem.</description>
+</property>
+
+<property>
+  <name>fs.default.name</name>
+  <value>file:///</value>
+  <description>Deprecated. Use (fs.defaultFS) property
+  instead</description>
+</property>
+
+<property>
+  <name>fs.trash.interval</name>
+  <value>0</value>
+  <description>Number of minutes after which the checkpoint
+  gets deleted.  If zero, the trash feature is disabled.
+  This option may be configured both on the server and the
+  client. If trash is disabled server side then the client
+  side configuration is checked. If trash is enabled on the
+  server side then the value configured on the server is
+  used and the client configuration value is ignored.
+  </description>
+</property>
+
+<property>
+  <name>fs.trash.checkpoint.interval</name>
+  <value>0</value>
+  <description>Number of minutes between trash checkpoints.
+  Should be smaller or equal to fs.trash.interval. If zero,
+  the value is set to the value of fs.trash.interval.
+  Every time the checkpointer runs it creates a new checkpoint
+  out of current and removes checkpoints created more than
+  fs.trash.interval minutes ago.
+  </description>
+</property>
+
+<property>
+  <name>fs.protected.directories</name>
+  <value></value>
+  <description>A comma-separated list of directories which cannot
+    be deleted even by the superuser unless they are empty. This
+    setting can be used to guard important system directories
+    against accidental deletion due to administrator error.
+  </description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.file.impl</name>
+  <value>org.apache.hadoop.fs.local.LocalFs</value>
+  <description>The AbstractFileSystem for file: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.har.impl</name>
+  <value>org.apache.hadoop.fs.HarFs</value>
+  <description>The AbstractFileSystem for har: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.hdfs.impl</name>
+  <value>org.apache.hadoop.fs.Hdfs</value>
+  <description>The FileSystem for hdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.viewfs.impl</name>
+  <value>org.apache.hadoop.fs.viewfs.ViewFs</value>
+  <description>The AbstractFileSystem for view file system for viewfs: uris
+  (ie client side mount table:).</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.ftp.impl</name>
+  <value>org.apache.hadoop.fs.ftp.FtpFs</value>
+  <description>The FileSystem for Ftp: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.webhdfs.impl</name>
+  <value>org.apache.hadoop.fs.WebHdfs</value>
+  <description>The FileSystem for webhdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.swebhdfs.impl</name>
+  <value>org.apache.hadoop.fs.SWebHdfs</value>
+  <description>The FileSystem for swebhdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.ftp.host</name>
+  <value>0.0.0.0</value>
+  <description>FTP filesystem connects to this server</description>
+</property>
+
+<property>
+  <name>fs.ftp.host.port</name>
+  <value>21</value>
+  <description>
+    FTP filesystem connects to fs.ftp.host on this port
+  </description>
+</property>
+
+<property>
+  <name>fs.df.interval</name>
+  <value>60000</value>
+  <description>Disk usage statistics refresh interval in msec.</description>
+</property>
+
+<property>
+  <name>fs.du.interval</name>
+  <value>600000</value>
+  <description>File space usage statistics refresh interval in msec.</description>
+</property>
+
+<property>
+  <name>fs.s3.block.size</name>
+  <value>67108864</value>
+  <description>Block size to use when writing files to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3.buffer.dir</name>
+  <value>${hadoop.tmp.dir}/s3</value>
+  <description>Determines where on the local filesystem the s3:/s3n: filesystem
+  should store files before sending them to S3
+  (or after retrieving them from S3).
+  </description>
+</property>
+
+<property>
+  <name>fs.s3.maxRetries</name>
+  <value>4</value>
+  <description>The maximum number of retries for reading or writing files to S3,
+  before we signal failure to the application.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3.sleepTimeSeconds</name>
+  <value>10</value>
+  <description>The number of seconds to sleep between each S3 retry.
+  </description>
+</property>
+
+<property>
+  <name>fs.automatic.close</name>
+  <value>true</value>
+  <description>By default, FileSystem instances are automatically closed at program
+  exit using a JVM shutdown hook. Setting this property to false disables this
+  behavior. This is an advanced option that should only be used by server applications
+  requiring a more carefully orchestrated shutdown sequence.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.block.size</name>
+  <value>67108864</value>
+  <description>Block size to use when reading files using the native S3
+  filesystem (s3n: URIs).</description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.uploads.enabled</name>
+  <value>false</value>
+  <description>Setting this property to true enables multiple uploads to
+  native S3 filesystem. When uploading a file, it is split into blocks
+  if the size is larger than fs.s3n.multipart.uploads.block.size.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.uploads.block.size</name>
+  <value>67108864</value>
+  <description>The block size for multipart uploads to native S3 filesystem.
+  Default size is 64MB.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.copy.block.size</name>
+  <value>5368709120</value>
+  <description>The block size for multipart copy in native S3 filesystem.
+  Default size is 5GB.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.server-side-encryption-algorithm</name>
+  <value></value>
+  <description>Specify a server-side encryption algorithm for S3.
+  Unset by default, and the only other currently allowable value is AES256.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.access.key</name>
+  <description>AWS access key ID used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
+</property>
+
+<property>
+  <name>fs.s3a.secret.key</name>
+  <description>AWS secret key used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
+</property>
+
+<property>
+  <name>fs.s3a.aws.credentials.provider</name>
+  <description>
+	  Comma-separated class names of credential provider classes which implement
+	  com.amazonaws.auth.AWSCredentialsProvider.
+
+	  These are loaded and queried in sequence for a valid set of credentials.
+	  Each listed class must implement one of the following means of
+	  construction, which are attempted in order:
+	  1. a public constructor accepting java.net.URI and
+	  org.apache.hadoop.conf.Configuration,
+	  2. a public static method named getInstance that accepts no
+	  arguments and returns an instance of
+	  com.amazonaws.auth.AWSCredentialsProvider, or
+	  3. a public default constructor.
+
+	  Specifying
+	  org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider
+	  allows
+	  anonymous access to a publicly accessible S3 bucket without any credentials.
+	  Please note that allowing anonymous access to an S3 bucket compromises
+	  security and therefore is unsuitable for most use cases. It can be useful
+	  for accessing public data sets without requiring AWS credentials.
+
+	  If unspecified, then the default list of credential provider classes,
+	  queried in sequence, is:
+	  1. org.apache.hadoop.fs.s3a.BasicAWSCredentialsProvider:
+	  supports static
+	  configuration of AWS access key ID and secret access key. See also
+	  fs.s3a.access.key and fs.s3a.secret.key.
+	  2. com.amazonaws.auth.EnvironmentVariableCredentialsProvider: supports
+	  configuration of AWS access key ID and secret access key in
+	  environment variables named AWS_ACCESS_KEY_ID and
+	  AWS_SECRET_ACCESS_KEY, as documented in the AWS SDK.
+	  3.
+	  org.apache.hadoop.fs.s3a.SharedInstanceProfileCredentialsProvider:
+	  a shared instance of
+	  com.amazonaws.auth.InstanceProfileCredentialsProvider from the AWS
+	  SDK, which supports use of instance profile credentials if running
+	  in an EC2 VM. Using this shared instance potentially reduces load
+	  on the EC2 instance metadata service for multi-threaded
+	  applications.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.session.token</name>
+  <description>Session token, when using org.apache.hadoop.fs.s3a.TemporaryAWSCredentialsProvider
+    as one of the providers.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.security.credential.provider.path</name>
+  <value />
+  <description>
+    Optional comma separated list of credential providers, a list
+    which is prepended to that set in hadoop.security.credential.provider.path
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.maximum</name>
+  <value>15</value>
+  <description>Controls the maximum number of simultaneous connections to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.ssl.enabled</name>
+  <value>true</value>
+  <description>Enables or disables SSL connections to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3a.endpoint</name>
+  <description>AWS S3 endpoint to connect to. An up-to-date list is
+    provided in the AWS Documentation: regions and endpoints. Without this
+    property, the standard region (s3.amazonaws.com) is assumed.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.path.style.access</name>
+  <value>false</value>
+  <description>Enable S3 path style access ie disabling the default virtual hosting behaviour.
+    Useful for S3A-compliant storage providers as it removes the need to set up DNS for virtual hosting.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.host</name>
+  <description>Hostname of the (optional) proxy server for S3 connections.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.port</name>
+  <description>Proxy server port. If this property is not set
+    but fs.s3a.proxy.host is, port 80 or 443 is assumed (consistent with
+    the value of fs.s3a.connection.ssl.enabled).</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.username</name>
+  <description>Username for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.password</name>
+  <description>Password for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.domain</name>
+  <description>Domain for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.workstation</name>
+  <description>Workstation for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.attempts.maximum</name>
+  <value>20</value>
+  <description>How many times we should retry commands on transient errors.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.establish.timeout</name>
+  <value>5000</value>
+  <description>Socket connection setup timeout in milliseconds.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.timeout</name>
+  <value>200000</value>
+  <description>Socket connection timeout in milliseconds.</description>
+</property>
+
+<property>
+  <name>fs.s3a.socket.send.buffer</name>
+  <value>8192</value>
+  <description>Socket send buffer hint to amazon connector. Represented in bytes.</description>
+</property>
+
+<property>
+  <name>fs.s3a.socket.recv.buffer</name>
+  <value>8192</value>
+  <description>Socket receive buffer hint to amazon connector. Represented in bytes.</description>
+</property>
+
+<property>
+  <name>fs.s3a.paging.maximum</name>
+  <value>5000</value>
+  <description>How many keys to request from S3 when doing
+     directory listings at a time.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.max</name>
+  <value>10</value>
+  <description>The total number of threads available in the filesystem for data
+    uploads *or any other queued filesystem operation*.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.keepalivetime</name>
+  <value>60</value>
+  <description>Number of seconds a thread can be idle before being
+    terminated.</description>
+</property>
+
+<property>
+  <name>fs.s3a.max.total.tasks</name>
+  <value>5</value>
+  <description>The number of operations which can be queued for execution</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.size</name>
+  <value>100M</value>
+  <description>How big (in bytes) to split upload or copy operations up into.
+    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.threshold</name>
+  <value>2147483647</value>
+  <description>How big (in bytes) to split upload or copy operations up into.
+    This also controls the partition size in renamed files, as rename() involves
+    copying the source file(s).
+    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.multiobjectdelete.enable</name>
+  <value>true</value>
+  <description>When enabled, multiple single-object delete requests are replaced by
+    a single 'delete multiple objects'-request, reducing the number of requests.
+    Beware: legacy S3-compatible object stores might not support this request.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.acl.default</name>
+  <description>Set a canned ACL for newly created and copied objects. Value may be Private,
+      PublicRead, PublicReadWrite, AuthenticatedRead, LogDeliveryWrite, BucketOwnerRead,
+      or BucketOwnerFullControl.</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.purge</name>
+  <value>false</value>
+  <description>True if you want to purge existing multipart uploads that may not have been
+    completed/aborted correctly. The corresponding purge age is defined in
+    fs.s3a.multipart.purge.age.
+    If set, when the filesystem is instantiated then all outstanding uploads
+    older than the purge age will be terminated -across the entire bucket.
+    This will impact multipart uploads by other applications and users. so should
+    be used sparingly, with an age value chosen to stop failed uploads, without
+    breaking ongoing operations.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.purge.age</name>
+  <value>86400</value>
+  <description>Minimum age in seconds of multipart uploads to purge.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.server-side-encryption-algorithm</name>
+  <description>Specify a server-side encryption algorithm for s3a: file system.
+    Unset by default, and the only other currently allowable value is AES256.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.signing-algorithm</name>
+  <description>Override the default signing algorithm so legacy
+    implementations can still be used</description>
+</property>
+
+<property>
+  <name>fs.s3a.block.size</name>
+  <value>32M</value>
+  <description>Block size to use when reading files using s3a: file system.
+    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.buffer.dir</name>
+  <value>${hadoop.tmp.dir}/s3a</value>
+  <description>Comma separated list of directories that will be used to buffer file
+    uploads to.</description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload</name>
+  <value>false</value>
+  <description>
+    Use the incremental block-based fast upload mechanism with
+    the buffering mechanism set in fs.s3a.fast.upload.buffer.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload.buffer</name>
+  <value>disk</value>
+  <description>
+    The buffering mechanism to use when using S3A fast upload
+    (fs.s3a.fast.upload=true). Values: disk, array, bytebuffer.
+    This configuration option has no effect if fs.s3a.fast.upload is false.
+
+    "disk" will use the directories listed in fs.s3a.buffer.dir as
+    the location(s) to save data prior to being uploaded.
+
+    "array" uses arrays in the JVM heap
+
+    "bytebuffer" uses off-heap memory within the JVM.
+
+    Both "array" and "bytebuffer" will consume memory in a single stream up to the number
+    of blocks set by:
+
+        fs.s3a.multipart.size * fs.s3a.fast.upload.active.blocks.
+
+    If using either of these mechanisms, keep this value low
+
+    The total number of threads performing work across all threads is set by
+    fs.s3a.threads.max, with fs.s3a.max.total.tasks values setting the number of queued
+    work items.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload.active.blocks</name>
+  <value>4</value>
+  <description>
+    Maximum Number of blocks a single output stream can have
+    active (uploading, or queued to the central FileSystem
+    instance's pool of queued operations.
+
+    This stops a single stream overloading the shared thread pool.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.readahead.range</name>
+  <value>64K</value>
+  <description>Bytes to read ahead during a seek() before closing and
+  re-opening the S3 HTTP connection. This option will be overridden if
+  any call to setReadahead() is made to an open stream.
+  A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.user.agent.prefix</name>
+  <value></value>
+  <description>
+    Sets a custom value that will be prepended to the User-Agent header sent in
+    HTTP requests to the S3 back-end by S3AFileSystem.  The User-Agent header
+    always includes the Hadoop version number followed by a string generated by
+    the AWS SDK.  An example is "User-Agent: Hadoop 2.8.0, aws-sdk-java/1.10.6".
+    If this optional property is set, then its value is prepended to create a
+    customized User-Agent.  For example, if this configuration property was set
+    to "MyApp", then an example of the resulting User-Agent would be
+    "User-Agent: MyApp, Hadoop 2.8.0, aws-sdk-java/1.10.6".
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.impl</name>
+  <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
+  <description>The implementation class of the S3A Filesystem</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.s3a.impl</name>
+  <value>org.apache.hadoop.fs.s3a.S3A</value>
+  <description>The implementation class of the S3A AbstractFileSystem.</description>
+</property>
+
+<property>
+  <name>io.seqfile.compress.blocksize</name>
+  <value>1000000</value>
+  <description>The minimum block size for compression in block compressed
+          SequenceFiles.
+  </description>
+</property>
+
+ <property>
+  <name>io.mapfile.bloom.size</name>
+  <value>1048576</value>
+  <description>The size of BloomFilter-s used in BloomMapFile. Each time this many
+  keys is appended the next BloomFilter will be created (inside a DynamicBloomFilter).
+  Larger values minimize the number of filters, which slightly increases the performance,
+  but may waste too much space if the total number of keys is usually much smaller
+  than this number.
+  </description>
+</property>
+
+<property>
+  <name>io.mapfile.bloom.error.rate</name>
+  <value>0.005</value>
+  <description>The rate of false positives in BloomFilter-s used in BloomMapFile.
+  As this value decreases, the size of BloomFilter-s increases exponentially. This
+  value is the probability of encountering false positives (default is 0.5%).
+  </description>
+</property>
+
+<property>
+  <name>hadoop.util.hash.type</name>
+  <value>murmur</value>
+  <description>The default implementation of Hash. Currently this can take one of the
+  two values: 'murmur' to select MurmurHash and 'jenkins' to select JenkinsHash.
+  </description>
+</property>
+
+
+<!-- ipc properties -->
+
+<property>
+  <name>ipc.client.idlethreshold</name>
+  <value>4000</value>
+  <description>Defines the threshold number of connections after which
+               connections will be inspected for idleness.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.kill.max</name>
+  <value>10</value>
+  <description>Defines the maximum number of clients to disconnect in one go.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connection.maxidletime</name>
+  <value>10000</value>
+  <description>The maximum time in msec after which a client will bring down the
+               connection to the server.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.max.retries</name>
+  <value>10</value>
+  <description>Indicates the number of retries a client will make to establish
+               a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.retry.interval</name>
+  <value>1000</value>
+  <description>Indicates the number of milliseconds a client will wait for
+    before retrying to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.timeout</name>
+  <value>20000</value>
+  <description>Indicates the number of milliseconds a client will wait for the
+               socket to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.max.retries.on.timeouts</name>
+  <value>45</value>
+  <description>Indicates the number of retries a client will make on socket timeout
+               to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.tcpnodelay</name>
+  <value>true</value>
+  <description>Use TCP_NODELAY flag to bypass Nagle's algorithm transmission delays.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.low-latency</name>
+  <value>false</value>
+  <description>Use low-latency QoS markers for IPC connections.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.ping</name>
+  <value>true</value>
+  <description>Send a ping to the server when timeout on reading the response,
+  if set to true. If no failure is detected, the client retries until at least
+  a byte is read or the time given by ipc.client.rpc-timeout.ms is passed.
+  </description>
+</property>
+
+<property>
+  <name>ipc.ping.interval</name>
+  <value>60000</value>
+  <description>Timeout on waiting response from server, in milliseconds.
+  The client will send ping when the interval is passed without receiving bytes,
+  if ipc.client.ping is set to true.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.rpc-timeout.ms</name>
+  <value>0</value>
+  <description>Timeout on waiting response from server, in milliseconds.
+  If ipc.client.ping is set to true and this rpc-timeout is greater than
+  the value of ipc.ping.interval, the effective value of the rpc-timeout is
+  rounded up to multiple of ipc.ping.interval.
+  </description>
+</property>
+
+<property>
+  <name>ipc.server.listen.queue.size</name>
+  <value>128</value>
+  <description>Indicates the length of the listen queue for servers accepting
+               client connections.
+  </description>
+</property>
+
+<property>
+    <name>ipc.server.log.slow.rpc</name>
+    <value>false</value>
+    <description>This setting is useful to troubleshoot performance issues for
+     various services. If this value is set to true then we log requests that
+     fall into 99th percentile as well as increment RpcSlowCalls counter.
+    </description>
+</property>
+
+<property>
+  <name>ipc.maximum.data.length</name>
+  <value>67108864</value>
+  <description>This indicates the maximum IPC message length (bytes) that can be
+    accepted by the server. Messages larger than this value are rejected by the
+    immediately to avoid possible OOMs. This setting should rarely need to be
+    changed.
+  </description>
+</property>
+
+<property>
+  <name>ipc.maximum.response.length</name>
+  <value>134217728</value>
+  <description>This indicates the maximum IPC message length (bytes) that can be
+    accepted by the client. Messages larger than this value are rejected
+    immediately to avoid possible OOMs. This setting should rarely need to be
+    changed.  Set to 0 to disable.
+  </description>
+</property>
+
+<!-- Proxy Configuration -->
+
+<property>
+  <name>hadoop.security.impersonation.provider.class</name>
+  <value></value>
+  <description>A class which implements ImpersonationProvider interface, used to
+       authorize whether one user can impersonate a specific user.
+       If not specified, the DefaultImpersonationProvider will be used.
+       If a class is specified, then that class will be used to determine
+       the impersonation capability.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.socket.factory.class.default</name>
+  <value>org.apache.hadoop.net.StandardSocketFactory</value>
+  <description> Default SocketFactory to use. This parameter is expected to be
+    formatted as "package.FactoryClassName".
+  </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
+  <value></value>
+  <description> SocketFactory to use to connect to a DFS. If null or empty, use
+    hadoop.rpc.socket.class.default. This socket factory is also used by
+    DFSClient to create sockets to DataNodes.
+  </description>
+</property>
+
+
+
+<property>
+  <name>hadoop.socks.server</name>
+  <value></value>
+  <description> Address (host:port) of the SOCKS server to be used by the
+    SocksSocketFactory.
+  </description>
+</property>
+
+<!-- Topology Configuration -->
+<property>
+  <name>net.topology.node.switch.mapping.impl</name>
+  <value>org.apache.hadoop.net.ScriptBasedMapping</value>
+  <description> The default implementation of the DNSToSwitchMapping. It
+    invokes a script specified in net.topology.script.file.name to resolve
+    node names. If the value for net.topology.script.file.name is not set, the
+    default value of DEFAULT_RACK is returned for all node names.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.impl</name>
+  <value>org.apache.hadoop.net.NetworkTopology</value>
+  <description> The default implementation of NetworkTopology which is classic three layer one.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.script.file.name</name>
+  <value></value>
+  <description> The script name that should be invoked to resolve DNS names to
+    NetworkTopology names. Example: the script would take host.foo.bar as an
+    argument, and return /rack1 as the output.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.script.number.args</name>
+  <value>100</value>
+  <description> The max number of args that the script configured with
+    net.topology.script.file.name should be run with. Each arg is an
+    IP address.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.table.file.name</name>
+  <value></value>
+  <description> The file name for a topology file, which is used when the
+    net.topology.node.switch.mapping.impl property is set to
+    org.apache.hadoop.net.TableMapping. The file format is a two column text
+    file, with columns separated by whitespace. The first column is a DNS or
+    IP address and the second column specifies the rack where the address maps.
+    If no entry corresponding to a host in the cluster is found, then
+    /default-rack is assumed.
+  </description>
+</property>
+
+<!-- Local file system -->
+<property>
+  <name>file.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>file.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  file.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>file.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>file.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>file.replication</name>
+  <value>1</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- s3 File System -->
+
+<property>
+  <name>s3.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>s3.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  s3.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>s3.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>s3.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>s3.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- s3native File System -->
+
+<property>
+  <name>s3native.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>s3native.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  s3native.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>s3native.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>s3native.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>s3native.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- FTP file system -->
+<property>
+  <name>ftp.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>ftp.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  ftp.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>ftp.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>ftp.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>ftp.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- Tfile -->
+
+<property>
+  <name>tfile.io.chunk.size</name>
+  <value>1048576</value>
+  <description>
+    Value chunk size in bytes. Default  to
+    1MB. Values of the length less than the chunk size is
+    guaranteed to have known value length in read time (See also
+    TFile.Reader.Scanner.Entry.isValueLengthKnown()).
+  </description>
+</property>
+
+<property>
+  <name>tfile.fs.output.buffer.size</name>
+  <value>262144</value>
+  <description>
+    Buffer size used for FSDataOutputStream in bytes.
+  </description>
+</property>
+
+<property>
+  <name>tfile.fs.input.buffer.size</name>
+  <value>262144</value>
+  <description>
+    Buffer size used for FSDataInputStream in bytes.
+  </description>
+</property>
+
+<!-- HTTP web-consoles Authentication -->
+
+<property>
+  <name>hadoop.http.authentication.type</name>
+  <value>simple</value>
+  <description>
+    Defines authentication used for Oozie HTTP endpoint.
+    Supported values are: simple | kerberos | #AUTHENTICATION_HANDLER_CLASSNAME#
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.token.validity</name>
+  <value>36000</value>
+  <description>
+    Indicates how long (in seconds) an authentication token is valid before it has
+    to be renewed.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.signature.secret.file</name>
+  <value>${user.home}/hadoop-http-auth-signature-secret</value>
+  <description>
+    The signature secret for signing the authentication tokens.
+    The same secret should be used for JT/NN/DN/TT configurations.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.cookie.domain</name>
+  <value></value>
+  <description>
+    The domain to use for the HTTP cookie that stores the authentication token.
+    In order to authentiation to work correctly across all Hadoop nodes web-consoles
+    the domain must be correctly set.
+    IMPORTANT: when using IP addresses, browsers ignore cookies with domain settings.
+    For this setting to work properly all nodes in the cluster must be configured
+    to generate URLs with hostname.domain names on it.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.simple.anonymous.allowed</name>
+  <value>true</value>
+  <description>
+    Indicates if anonymous requests are allowed when using 'simple' authentication.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.kerberos.principal</name>
+  <value>HTTP/_HOST@LOCALHOST</value>
+  <description>
+    Indicates the Kerberos principal to be used for HTTP endpoint.
+    The principal MUST start with 'HTTP/' as per Kerberos HTTP SPNEGO specification.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.kerberos.keytab</name>
+  <value>${user.home}/hadoop.keytab</value>
+  <description>
+    Location of the keytab file with the credentials for the principal.
+    Referring to the same keytab file Oozie uses for its Kerberos credentials for Hadoop.
+  </description>
+</property>
+
+<!-- HTTP CORS support -->
+<property>
+  <description>Enable/disable the cross-origin (CORS) filter.</description>
+  <name>hadoop.http.cross-origin.enabled</name>
+  <value>false</value>
+</property>
+
+<property>
+  <description>Comma separated list of origins that are allowed for web
+    services needing cross-origin (CORS) support. Wildcards (*) and patterns
+    allowed</description>
+  <name>hadoop.http.cross-origin.allowed-origins</name>
+  <value>*</value>
+</property>
+
+<property>
+  <description>Comma separated list of methods that are allowed for web
+    services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.allowed-methods</name>
+  <value>GET,POST,HEAD</value>
+</property>
+
+<property>
+  <description>Comma separated list of headers that are allowed for web
+    services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.allowed-headers</name>
+  <value>X-Requested-With,Content-Type,Accept,Origin</value>
+</property>
+
+<property>
+  <description>The number of seconds a pre-flighted request can be cached
+    for web services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.max-age</name>
+  <value>1800</value>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.methods</name>
+  <value></value>
+  <description>
+    List of fencing methods to use for service fencing. May contain
+    builtin methods (eg shell and sshfence) or user-defined method.
+  </description>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.ssh.connect-timeout</name>
+  <value>30000</value>
+  <description>
+    SSH connection timeout, in milliseconds, to use with the builtin
+    sshfence fencer.
+  </description>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.ssh.private-key-files</name>
+  <value></value>
+  <description>
+    The SSH private key files to use with the builtin sshfence fencer.
+  </description>
+</property>
+
+
+<!-- Static Web User Filter properties. -->
+<property>
+  <description>
+    The user name to filter as, on static web filters
+    while rendering content. An example use is the HDFS
+    web UI (user to be used for browsing files).
+  </description>
+  <name>hadoop.http.staticuser.user</name>
+  <value>dr.who</value>
+</property>
+
+<property>
+  <name>ha.zookeeper.quorum</name>
+  <description>
+    A list of ZooKeeper server addresses, separated by commas, that are
+    to be used by the ZKFailoverController in automatic failover.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.session-timeout.ms</name>
+  <value>5000</value>
+  <description>
+    The session timeout to use when the ZKFC connects to ZooKeeper.
+    Setting this value to a lower value implies that server crashes
+    will be detected more quickly, but risks triggering failover too
+    aggressively in the case of a transient error or network blip.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.parent-znode</name>
+  <value>/hadoop-ha</value>
+  <description>
+    The ZooKeeper znode under which the ZK failover controller stores
+    its information. Note that the nameservice ID is automatically
+    appended to this znode, so it is not normally necessary to
+    configure this, even in a federated environment.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.acl</name>
+  <value>world:anyone:rwcda</value>
+  <description>
+    A comma-separated list of ZooKeeper ACLs to apply to the znodes
+    used by automatic failover. These ACLs are specified in the same
+    format as used by the ZooKeeper CLI.
+
+    If the ACL itself contains secrets, you may instead specify a
+    path to a file, prefixed with the '@' symbol, and the value of
+    this configuration will be loaded from within.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.auth</name>
+  <value></value>
+  <description>
+    A comma-separated list of ZooKeeper authentications to add when
+    connecting to ZooKeeper. These are specified in the same format
+    as used by the &quot;addauth&quot; command in the ZK CLI. It is
+    important that the authentications specified here are sufficient
+    to access znodes with the ACL specified in ha.zookeeper.acl.
+
+    If the auths contain secrets, you may instead specify a
+    path to a file, prefixed with the '@' symbol, and the value of
+    this configuration will be loaded from within.
+  </description>
+</property>
+
+<!-- SSLFactory configuration -->
+
+<property>
+  <name>hadoop.ssl.keystores.factory.class</name>
+  <value>org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory</value>
+  <description>
+    The keystores factory to use for retrieving certificates.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.require.client.cert</name>
+  <value>false</value>
+  <description>Whether client certificates are required</description>
+</property>
+
+<property>
+  <name>hadoop.ssl.hostname.verifier</name>
+  <value>DEFAULT</value>
+  <description>
+    The hostname verifier to provide for HttpsURLConnections.
+    Valid values are: DEFAULT, STRICT, STRICT_I6, DEFAULT_AND_LOCALHOST and
+    ALLOW_ALL
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.server.conf</name>
+  <value>ssl-server.xml</value>
+  <description>
+    Resource file from which ssl server keystore information will be extracted.
+    This file is looked up in the classpath, typically it should be in Hadoop
+    conf/ directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.client.conf</name>
+  <value>ssl-client.xml</value>
+  <description>
+    Resource file from which ssl client keystore information will be extracted
+    This file is looked up in the classpath, typically it should be in Hadoop
+    conf/ directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.enabled</name>
+  <value>false</value>
+  <description>
+    Deprecated. Use dfs.http.policy and yarn.http.policy instead.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.enabled.protocols</name>
+  <value>TLSv1</value>
+  <description>
+    Protocols supported by the ssl.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.jetty.logs.serve.aliases</name>
+  <value>true</value>
+  <description>
+    Enable/Disable aliases serving from jetty
+  </description>
+</property>
+
+<property>
+  <name>fs.permissions.umask-mode</name>
+  <value>022</value>
+  <description>
+    The umask used when creating files and directories.
+    Can be in octal or in symbolic. Examples are:
+    "022" (octal for u=rwx,g=r-x,o=r-x in symbolic),
+    or "u=rwx,g=rwx,o=" (symbolic for 007 in octal).
+  </description>
+</property>
+
+<!-- ha properties -->
+
+<property>
+  <name>ha.health-monitor.connect-retry-interval.ms</name>
+  <value>1000</value>
+  <description>
+    How often to retry connecting to the service.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.check-interval.ms</name>
+  <value>1000</value>
+  <description>
+    How often to check the service.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.sleep-after-disconnect.ms</name>
+  <value>1000</value>
+  <description>
+    How long to sleep after an unexpected RPC error.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.rpc-timeout.ms</name>
+  <value>45000</value>
+  <description>
+    Timeout for the actual monitorHealth() calls.
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.new-active.rpc-timeout.ms</name>
+  <value>60000</value>
+  <description>
+    Timeout that the FC waits for the new active to become active
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.graceful-fence.rpc-timeout.ms</name>
+  <value>5000</value>
+  <description>
+    Timeout that the FC waits for the old active to go to standby
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.graceful-fence.connection.retries</name>
+  <value>1</value>
+  <description>
+    FC connection retries for graceful fencing
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.cli-check.rpc-timeout.ms</name>
+  <value>20000</value>
+  <description>
+    Timeout that the CLI (manual) FC waits for monitorHealth, getServiceState
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.fallback-to-simple-auth-allowed</name>
+  <value>false</value>
+  <description>
+    When a client is configured to attempt a secure connection, but attempts to
+    connect to an insecure server, that server may instruct the client to
+    switch to SASL SIMPLE (unsecure) authentication. This setting controls
+    whether or not the client will accept this instruction from the server.
+    When false (the default), the client will not allow the fallback to SIMPLE
+    authentication, and will abort the connection.
+  </description>
+</property>
+
+<property>
+  <name>fs.client.resolve.remote.symlinks</name>
+  <value>true</value>
+  <description>
+      Whether to resolve symlinks when accessing a remote Hadoop filesystem.
+      Setting this to false causes an exception to be thrown upon encountering
+      a symlink. This setting does not apply to local filesystems, which
+      automatically resolve local symlinks.
+  </description>
+</property>
+
+<property>
+  <name>nfs.exports.allowed.hosts</name>
+  <value>* rw</value>
+  <description>
+    By default, the export can be mounted by any client. The value string
+    contains machine name and access privilege, separated by whitespace
+    characters. The machine name format can be a single host, a Java regular
+    expression, or an IPv4 address. The access privilege uses rw or ro to
+    specify read/write or read-only access of the machines to exports. If the
+    access privilege is not provided, the default is read-only. Entries are separated by ";".
+    For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
+    Only the NFS gateway needs to restart after this property is updated.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.user.group.static.mapping.overrides</name>
+  <value>dr.who=;</value>
+  <description>
+    Static mapping of user to groups. This will override the groups if
+    available in the system for the specified user. In otherwords, groups
+    look-up will not happen for these users, instead groups mapped in this
+    configuration will be used.
+    Mapping should be in this format.
+    user1=group1,group2;user2=;user3=group2;
+    Default, "dr.who=;" will consider "dr.who" as user without groups.
+  </description>
+</property>
+
+<property>
+  <name>rpc.metrics.quantile.enable</name>
+  <value>false</value>
+  <description>
+    Setting this property to true and rpc.metrics.percentiles.intervals
+    to a comma-separated list of the granularity in seconds, the
+    50/75/90/95/99th percentile latency for rpc queue/processing time in
+    milliseconds are added to rpc metrics.
+  </description>
+</property>
+
+<property>
+  <name>rpc.metrics.percentiles.intervals</name>
+  <value></value>
+  <description>
+    A comma-separated list of the granularity in seconds for the metrics which
+    describe the 50/75/90/95/99th percentile latency for rpc queue/processing
+    time. The metrics are outputted if rpc.metrics.quantile.enable is set to
+    true.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.codec.classes.EXAMPLECIPHERSUITE</name>
+  <value></value>
+  <description>
+    The prefix for a given crypto codec, contains a comma-separated
+    list of implementation classes for a given crypto codec (eg EXAMPLECIPHERSUITE).
+    The first implementation will be used if available, others are fallbacks.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.codec.classes.aes.ctr.nopadding</name>
+  <value>org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec, org.apache.hadoop.crypto.JceAesCtrCryptoCodec</value>
+  <description>
+    Comma-separated list of crypto codec implementations for AES/CTR/NoPadding.
+    The first implementation will be used if available, others are fallbacks.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.cipher.suite</name>
+  <value>AES/CTR/NoPadding</value>
+  <description>
+    Cipher suite for crypto codec.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.jce.provider</name>
+  <value></value>
+  <description>
+    The JCE provider name used in CryptoCodec.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.buffer.size</name>
+  <value>8192</value>
+  <description>
+    The buffer size used by CryptoInputStream and CryptoOutputStream.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.java.secure.random.algorithm</name>
+  <value>SHA1PRNG</value>
+  <description>
+    The java secure random algorithm.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.secure.random.impl</name>
+  <value></value>
+  <description>
+    Implementation of secure random.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.random.device.file.path</name>
+  <value>/dev/urandom</value>
+  <description>
+    OS security random device file path.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.key.provider.path</name>
+  <description>
+    The KeyProvider to use when managing zone keys, and interacting with
+    encryption keys when reading and writing to an encryption zone.
+  </description>
+</property>
+
+<property>
+  <name>fs.har.impl.disable.cache</name>
+  <value>true</value>
+  <description>Don't cache 'har' filesystem instances.</description>
+</property>
+
+<!--- KMSClientProvider configurations -->
+<property>
+  <name>hadoop.security.kms.client.authentication.retry-count</name>
+  <value>1</value>
+  <description>
+    Number of time to retry connecting to KMS on authentication failure
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.size</name>
+  <value>500</value>
+  <description>
+    Size of the EncryptedKeyVersion cache Queue for each key
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.low-watermark</name>
+  <value>0.3f</value>
+  <description>
+    If size of the EncryptedKeyVersion cache Queue falls below the
+    low watermark, this cache queue will be scheduled for a refill
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.num.refill.threads</name>
+  <value>2</value>
+  <description>
+    Number of threads to use for refilling depleted EncryptedKeyVersion
+    cache Queues
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.expiry</name>
+  <value>43200000</value>
+  <description>
+    Cache expiry time for a Key, after which the cache Queue for this
+    key will be dropped. Default = 12hrs
+  </description>
+</property>
+
+ <property>
+  <name>ipc.server.max.connections</name>
+  <value>0</value>
+  <description>The maximum number of concurrent connections a server is allowed
+    to accept. If this limit is exceeded, incoming connections will first fill
+    the listen queue and then may go to an OS-specific listen overflow queue.
+    The client may fail or timeout, but the server can avoid running out of file
+    descriptors using this feature. 0 means no limit.
+  </description>
+</property>
+
+
+  <!-- YARN registry -->
+
+  <property>
+    <description>
+      Is the registry enabled in the YARN Resource Manager?
+
+      If true, the YARN RM will, as needed.
+      create the user and system paths, and purge
+      service records when containers, application attempts
+      and applications complete.
+
+      If false, the paths must be created by other means,
+      and no automatic cleanup of service records will take place.
+    </description>
+    <name>hadoop.registry.rm.enabled</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <description>
+      The root zookeeper node for the registry
+    </description>
+    <name>hadoop.registry.zk.root</name>
+    <value>/registry</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper session timeout in milliseconds
+    </description>
+    <name>hadoop.registry.zk.session.timeout.ms</name>
+    <value>60000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper connection timeout in milliseconds
+    </description>
+    <name>hadoop.registry.zk.connection.timeout.ms</name>
+    <value>15000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper connection retry count before failing
+    </description>
+    <name>hadoop.registry.zk.retry.times</name>
+    <value>5</value>
+  </property>
+
+  <property>
+    <description>
+    </description>
+    <name>hadoop.registry.zk.retry.interval.ms</name>
+    <value>1000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper retry limit in milliseconds, during
+      exponential backoff.
+
+      This places a limit even
+      if the retry times and interval limit, combined
+      with the backoff policy, result in a long retry
+      period
+    </description>
+    <name>hadoop.registry.zk.retry.ceiling.ms</name>
+    <value>60000</value>
+  </property>
+
+  <property>
+    <description>
+      List of hostname:port pairs defining the
+      zookeeper quorum binding for the registry
+    </description>
+    <name>hadoop.registry.zk.quorum</name>
+    <value>localhost:2181</value>
+  </property>
+
+  <property>
+    <description>
+      Key to set if the registry is secure. Turning it on
+      changes the permissions policy from "open access"
+      to restrictions on kerberos with the option of
+      a user adding one or more auth key pairs down their
+      own tree.
+    </description>
+    <name>hadoop.registry.secure</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <description>
+      A comma separated list of Zookeeper ACL identifiers with
+      system access to the registry in a secure cluster.
+
+      These are given full access to all entries.
+
+      If there is an "@" at the end of a SASL entry it
+      instructs the registry client to append the default kerberos domain.
+    </description>
+    <name>hadoop.registry.system.acls</name>
+    <value>sasl:yarn@, sasl:mapred@, sasl:hdfs@</value>
+  </property>
+
+  <property>
+    <description>
+      The kerberos realm: used to set the realm of
+      system principals which do not declare their realm,
+      and any other accounts that need the value.
+
+      If empty, the default realm of the running process
+      is used.
+
+      If neither are known and the realm is needed, then the registry
+      service/client will fail.
+    </description>
+    <name>hadoop.registry.kerberos.realm</name>
+    <value></value>
+  </property>
+
+  <property>
+    <description>
+      Key to define the JAAS context. Used in secure
+      mode
+    </description>
+    <name>hadoop.registry.jaas.context</name>
+    <value>Client</value>
+  </property>
+
+  <property>
+    <description>
+      Enable hdfs shell commands to display warnings if (fs.defaultFS) property
+      is not set.
+    </description>
+    <name>hadoop.shell.missing.defaultFs.warning</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>hadoop.shell.safely.delete.limit.num.files</name>
+    <value>100</value>
+    <description>Used by -safely option of hadoop fs shell -rm command to avoid
+      accidental deletion of large directories. When enabled, the -rm command
+      requires confirmation if the number of files to be deleted is greater than
+      this limit.  The default limit is 100 files. The warning is disabled if
+      the limit is 0 or the -safely is not specified in -rm command.
+    </description>
+  </property>
+
+  <property>
+    <name>fs.client.htrace.sampler.classes</name>
+    <value></value>
+    <description>The class names of the HTrace Samplers to use for Hadoop
+      filesystem clients.
+    </description>
+  </property>
+
+  <property>
+    <name>hadoop.htrace.span.receiver.classes</name>
+    <value></value>
+    <description>The class names of the Span Receivers to use for Hadoop.
+    </description>
+  </property>
+
+  <property>
+    <name>hadoop.caller.context.enabled</name>
+    <value>false</value>
+    <description>When the feature is enabled, additional fields are written into
+      name-node audit log records for auditing coarse granularity operations.
+    </description>
+  </property>
+  <property>
+    <name>hadoop.caller.context.max.size</name>
+    <value>128</value>
+    <description>The maximum bytes a caller context string can have. If the
+      passed caller context is longer than this maximum bytes, client will
+      truncate it before sending to server. Note that the server may have a
+      different maximum size, and will truncate the caller context to the
+      maximum size it allows.
+    </description>
+  </property>
+  <property>
+    <name>hadoop.caller.context.signature.max.size</name>
+    <value>40</value>
+    <description>
+      The caller's signature (optional) is for offline validation. If the
+      signature exceeds the maximum allowed bytes in server, the caller context
+      will be abandoned, in which case the caller context will not be recorded
+      in audit logs.
+    </description>
+  </property>
+
+</configuration>
diff --git a/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-site.xml b/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-site.xml
index b875e97be2a..bddcdc82fd3 100644
--- a/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-site.xml
+++ b/flink-filesystems/flink-s3-fs-hadoop/src/test/resources/core-site.xml
@@ -1,2312 +1,31 @@
 <?xml version="1.0"?>
-<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
-
 <!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
 
        http://www.apache.org/licenses/LICENSE-2.0
 
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 
-<!-- Do not modify this file directly.  Instead, copy entries that you -->
-<!-- wish to modify from this file into core-site.xml and change them -->
-<!-- there.  If core-site.xml does not already exist, create it.      -->
+<!--
+A configuration as it may accidentally be in the classpath when Hadoop is
+in the classpath. Used for tests checking that the presence of such a config
+does not pollute the settings.
+-->
 
 <configuration>
-
-<!--- global properties -->
-
-<property>
-  <name>hadoop.common.configuration.version</name>
-  <value>0.23.0</value>
-  <description>version of this configuration file</description>
-</property>
-
-<property>
-  <name>hadoop.tmp.dir</name>
-  <value>/tmp/hadoop-${user.name}</value>
-  <description>A base for other temporary directories.</description>
-</property>
-
-<property>
-  <name>io.native.lib.available</name>
-  <value>true</value>
-  <description>Controls whether to use native libraries for bz2 and zlib
-    compression codecs or not. The property does not control any other native
-    libraries.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.filter.initializers</name>
-  <value>org.apache.hadoop.http.lib.StaticUserWebFilter</value>
-  <description>A comma separated list of class names. Each class in the list
-  must extend org.apache.hadoop.http.FilterInitializer. The corresponding
-  Filter will be initialized. Then, the Filter will be applied to all user
-  facing jsp and servlet web pages.  The ordering of the list defines the
-  ordering of the filters.</description>
-</property>
-
-<!--- security properties -->
-
-<property>
-  <name>hadoop.security.authorization</name>
-  <value>false</value>
-  <description>Is service-level authorization enabled?</description>
-</property>
-
-<property>
-  <name>hadoop.security.instrumentation.requires.admin</name>
-  <value>false</value>
-  <description>
-    Indicates if administrator ACLs are required to access
-    instrumentation servlets (JMX, METRICS, CONF, STACKS).
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.authentication</name>
-  <value>simple</value>
-  <description>Possible values are simple (no authentication), and kerberos
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping</name>
-  <value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
-  <description>
-    Class for user to group mapping (get groups for a given user) for ACL.
-    The default implementation,
-    org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback,
-    will determine if the Java Native Interface (JNI) is available. If JNI is
-    available the implementation will use the API within hadoop to resolve a
-    list of groups for a user. If JNI is not available then the shell
-    implementation, ShellBasedUnixGroupsMapping, is used.  This implementation
-    shells out to the Linux/Unix environment with the
-    <code>bash -c groups</code> command to resolve a list of groups for a user.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.interface</name>
-  <description>
-    The name of the Network Interface from which the service should determine
-    its host name for Kerberos login. e.g. eth2. In a multi-homed environment,
-    the setting can be used to affect the _HOST subsitution in the service
-    Kerberos principal. If this configuration value is not set, the service
-    will use its default hostname as returned by
-    InetAddress.getLocalHost().getCanonicalHostName().
-
-    Most clusters will not require this setting.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.nameserver</name>
-  <description>
-    The host name or IP address of the name server (DNS) which a service Node
-    should use to determine its own host name for Kerberos Login. Requires
-    hadoop.security.dns.interface.
-
-    Most clusters will not require this setting.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.log-slow-lookups.enabled</name>
-  <value>false</value>
-  <description>
-    Time name lookups (via SecurityUtil) and log them if they exceed the
-    configured threshold.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.log-slow-lookups.threshold.ms</name>
-  <value>1000</value>
-  <description>
-    If slow lookup logging is enabled, this threshold is used to decide if a
-    lookup is considered slow enough to be logged.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.secs</name>
-  <value>300</value>
-  <description>
-    This is the config controlling the validity of the entries in the cache
-    containing the user->group mapping. When this duration has expired,
-    then the implementation of the group mapping provider is invoked to get
-    the groups of the user and then cached back.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.negative-cache.secs</name>
-  <value>30</value>
-  <description>
-    Expiration time for entries in the the negative user-to-group mapping
-    caching, in seconds. This is useful when invalid users are retrying
-    frequently. It is suggested to set a small value for this expiration, since
-    a transient error in group lookup could temporarily lock out a legitimate
-    user.
-
-    Set this to zero or negative value to disable negative user-to-group caching.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.warn.after.ms</name>
-  <value>5000</value>
-  <description>
-    If looking up a single user to group takes longer than this amount of
-    milliseconds, we will log a warning message.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.background.reload</name>
-  <value>false</value>
-  <description>
-    Whether to reload expired user->group mappings using a background thread
-    pool. If set to true, a pool of
-    hadoop.security.groups.cache.background.reload.threads is created to
-    update the cache in the background.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.background.reload.threads</name>
-  <value>3</value>
-  <description>
-    Only relevant if hadoop.security.groups.cache.background.reload is true.
-    Controls the number of concurrent background user->group cache entry
-    refreshes. Pending refresh requests beyond this value are queued and
-    processed when a thread is free.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.connection.timeout.ms</name>
-  <value>60000</value>
-  <description>
-    This property is the connection timeout (in milliseconds) for LDAP
-    operations. If the LDAP provider doesn't establish a connection within the
-    specified period, it will abort the connect attempt. Non-positive value
-    means no LDAP connection timeout is specified in which case it waits for the
-    connection to establish until the underlying network times out.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.read.timeout.ms</name>
-  <value>60000</value>
-  <description>
-    This property is the read timeout (in milliseconds) for LDAP
-    operations. If the LDAP provider doesn't get a LDAP response within the
-    specified period, it will abort the read attempt. Non-positive value
-    means no read timeout is specified in which case it waits for the response
-    infinitely.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.url</name>
-  <value></value>
-  <description>
-    The URL of the LDAP server to use for resolving user groups when using
-    the LdapGroupsMapping user to group mapping.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl</name>
-  <value>false</value>
-  <description>
-    Whether or not to use SSL when connecting to the LDAP server.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl.keystore</name>
-  <value></value>
-  <description>
-    File path to the SSL keystore that contains the SSL certificate required
-    by the LDAP server.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl.keystore.password.file</name>
-  <value></value>
-  <description>
-    The path to a file containing the password of the LDAP SSL keystore.
-
-    IMPORTANT: This file should be readable only by the Unix user running
-    the daemons.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.bind.user</name>
-  <value></value>
-  <description>
-    The distinguished name of the user to bind as when connecting to the LDAP
-    server. This may be left blank if the LDAP server supports anonymous binds.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.bind.password.file</name>
-  <value></value>
-  <description>
-    The path to a file containing the password of the bind user.
-
-    IMPORTANT: This file should be readable only by the Unix user running
-    the daemons.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.base</name>
-  <value></value>
-  <description>
-    The search base for the LDAP connection. This is a distinguished name,
-    and will typically be the root of the LDAP directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.filter.user</name>
-  <value>(&amp;(objectClass=user)(sAMAccountName={0}))</value>
-  <description>
-    An additional filter to use when searching for LDAP users. The default will
-    usually be appropriate for Active Directory installations. If connecting to
-    an LDAP server with a non-AD schema, this should be replaced with
-    (&amp;(objectClass=inetOrgPerson)(uid={0}). {0} is a special string used to
-    denote where the username fits into the filter.
-
-    If the LDAP server supports posixGroups, Hadoop can enable the feature by
-    setting the value of this property to "posixAccount" and the value of
-    the hadoop.security.group.mapping.ldap.search.filter.group property to
-    "posixGroup".
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.filter.group</name>
-  <value>(objectClass=group)</value>
-  <description>
-    An additional filter to use when searching for LDAP groups. This should be
-    changed when resolving groups against a non-Active Directory installation.
-
-    See the description of hadoop.security.group.mapping.ldap.search.filter.user
-    to enable posixGroups support.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.attr.member</name>
-  <value>member</value>
-  <description>
-    The attribute of the group object that identifies the users that are
-    members of the group. The default will usually be appropriate for
-    any LDAP installation.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.attr.group.name</name>
-  <value>cn</value>
-  <description>
-    The attribute of the group object that identifies the group name. The
-    default will usually be appropriate for all LDAP systems.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.posix.attr.uid.name</name>
-  <value>uidNumber</value>
-  <description>
-    The attribute of posixAccount to use when groups for membership.
-    Mostly useful for schemas wherein groups have memberUids that use an
-    attribute other than uidNumber.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.posix.attr.gid.name</name>
-  <value>gidNumber</value>
-  <description>
-    The attribute of posixAccount indicating the group id.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.directory.search.timeout</name>
-  <value>10000</value>
-  <description>
-    The attribute applied to the LDAP SearchControl properties to set a
-    maximum time limit when searching and awaiting a result.
-    Set to 0 if infinite wait period is desired.
-    Default is 10 seconds. Units in milliseconds.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.providers</name>
-  <value></value>
-  <description>
-    Comma separated of names of other providers to provide user to group
-    mapping. Used by CompositeGroupsMapping.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.providers.combined</name>
-  <value>true</value>
-  <description>
-    true or false to indicate whether groups from the providers are combined or
-    not. The default value is true. If true, then all the providers will be
-    tried to get groups and all the groups are combined to return as the final
-    results. Otherwise, providers are tried one by one in the configured list
-    order, and if any groups are retrieved from any provider, then the groups
-    will be returned without trying the left ones.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.service.user.name.key</name>
-  <value></value>
-  <description>
-    For those cases where the same RPC protocol is implemented by multiple
-    servers, this configuration is required for specifying the principal
-    name to use for the service when the client wishes to make an RPC call.
-  </description>
-</property>
-
-
-<property>
-    <name>hadoop.security.uid.cache.secs</name>
-    <value>14400</value>
-    <description>
-        This is the config controlling the validity of the entries in the cache
-        containing the userId to userName and groupId to groupName used by
-        NativeIO getFstat().
-    </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.protection</name>
-  <value>authentication</value>
-  <description>A comma-separated list of protection values for secured sasl
-      connections. Possible values are authentication, integrity and privacy.
-      authentication means authentication only and no integrity or privacy;
-      integrity implies authentication and integrity are enabled; and privacy
-      implies all of authentication, integrity and privacy are enabled.
-      hadoop.security.saslproperties.resolver.class can be used to override
-      the hadoop.rpc.protection for a connection at the server side.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.saslproperties.resolver.class</name>
-  <value></value>
-  <description>SaslPropertiesResolver used to resolve the QOP used for a
-      connection. If not specified, the full set of values specified in
-      hadoop.rpc.protection is used while determining the QOP used for the
-      connection. If a class is specified, then the QOP values returned by
-      the class will be used while determining the QOP used for the connection.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.sensitive-config-keys</name>
-  <value>secret$,password$,ssl.keystore.pass$,fs.s3.*[Ss]ecret.?[Kk]ey,fs.azure.account.key.*,dfs.webhdfs.oauth2.[a-z]+.token,hadoop.security.sensitive-config-keys</value>
-  <description>A comma-separated list of regular expressions to match against
-      configuration keys that should be redacted where appropriate, for
-      example, when logging modified properties during a reconfiguration,
-      private credentials should not be logged.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.workaround.non.threadsafe.getpwuid</name>
-  <value>true</value>
-  <description>Some operating systems or authentication modules are known to
-  have broken implementations of getpwuid_r and getpwgid_r, such that these
-  calls are not thread-safe. Symptoms of this problem include JVM crashes
-  with a stack trace inside these functions. If your system exhibits this
-  issue, enable this configuration parameter to include a lock around the
-  calls as a workaround.
-
-  An incomplete list of some systems known to have this issue is available
-  at http://wiki.apache.org/hadoop/KnownBrokenPwuidImplementations
-  </description>
-</property>
-
-<property>
-  <name>hadoop.kerberos.kinit.command</name>
-  <value>kinit</value>
-  <description>Used to periodically renew Kerberos credentials when provided
-  to Hadoop. The default setting assumes that kinit is in the PATH of users
-  running the Hadoop client. Change this to the absolute path to kinit if this
-  is not the case.
-  </description>
-</property>
-
-<property>
-    <name>hadoop.kerberos.min.seconds.before.relogin</name>
-    <value>60</value>
-    <description>The minimum time between relogin attempts for Kerberos, in
-    seconds.
-    </description>
-</property>
-
-<property>
-  <name>hadoop.security.auth_to_local</name>
-  <value></value>
-  <description>Maps kerberos principals to local user names</description>
-</property>
-
-<!-- i/o properties -->
-<property>
-  <name>io.file.buffer.size</name>
-  <value>4096</value>
-  <description>The size of buffer for use in sequence files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>io.bytes.per.checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  io.file.buffer.size.</description>
-</property>
-
-<property>
-  <name>io.skip.checksum.errors</name>
-  <value>false</value>
-  <description>If true, when a checksum error is encountered while
-  reading a sequence file, entries are skipped, instead of throwing an
-  exception.</description>
-</property>
-
-<property>
-  <name>io.compression.codecs</name>
-  <value></value>
-  <description>A comma-separated list of the compression codec classes that can
-  be used for compression/decompression. In addition to any classes specified
-  with this property (which take precedence), codec classes on the classpath
-  are discovered using a Java ServiceLoader.</description>
-</property>
-
-<property>
-  <name>io.compression.codec.bzip2.library</name>
-  <value>system-native</value>
-  <description>The native-code library to be used for compression and
-  decompression by the bzip2 codec.  This library could be specified
-  either by by name or the full pathname.  In the former case, the
-  library is located by the dynamic linker, usually searching the
-  directories specified in the environment variable LD_LIBRARY_PATH.
-
-  The value of "system-native" indicates that the default system
-  library should be used.  To indicate that the algorithm should
-  operate entirely in Java, specify "java-builtin".</description>
-</property>
-
-<property>
-  <name>io.serializations</name>
-  <value>org.apache.hadoop.io.serializer.WritableSerialization, org.apache.hadoop.io.serializer.avro.AvroSpecificSerialization, org.apache.hadoop.io.serializer.avro.AvroReflectSerialization</value>
-  <description>A list of serialization classes that can be used for
-  obtaining serializers and deserializers.</description>
-</property>
-
-<property>
-  <name>io.seqfile.local.dir</name>
-  <value>${hadoop.tmp.dir}/io/local</value>
-  <description>The local directory where sequence file stores intermediate
-  data files during merge.  May be a comma-separated list of
-  directories on different devices in order to spread disk i/o.
-  Directories that do not exist are ignored.
-  </description>
-</property>
-
-<property>
-  <name>io.map.index.skip</name>
-  <value>0</value>
-  <description>Number of index entries to skip between each entry.
-  Zero by default. Setting this to values larger than zero can
-  facilitate opening large MapFiles using less memory.</description>
-</property>
-
-<property>
-  <name>io.map.index.interval</name>
-  <value>128</value>
-  <description>
-    MapFile consist of two files - data file (tuples) and index file
-    (keys). For every io.map.index.interval records written in the
-    data file, an entry (record-key, data-file-position) is written
-    in the index file. This is to allow for doing binary search later
-    within the index file to look up records by their keys and get their
-    closest positions in the data file.
-  </description>
-</property>
-
-<!-- file system properties -->
-
-<property>
-  <name>fs.defaultFS</name>
-  <value>file:///</value>
-  <description>The name of the default file system.  A URI whose
-  scheme and authority determine the FileSystem implementation.  The
-  uri's scheme determines the config property (fs.SCHEME.impl) naming
-  the FileSystem implementation class.  The uri's authority is used to
-  determine the host, port, etc. for a filesystem.</description>
-</property>
-
-<property>
-  <name>fs.default.name</name>
-  <value>file:///</value>
-  <description>Deprecated. Use (fs.defaultFS) property
-  instead</description>
-</property>
-
-<property>
-  <name>fs.trash.interval</name>
-  <value>0</value>
-  <description>Number of minutes after which the checkpoint
-  gets deleted.  If zero, the trash feature is disabled.
-  This option may be configured both on the server and the
-  client. If trash is disabled server side then the client
-  side configuration is checked. If trash is enabled on the
-  server side then the value configured on the server is
-  used and the client configuration value is ignored.
-  </description>
-</property>
-
-<property>
-  <name>fs.trash.checkpoint.interval</name>
-  <value>0</value>
-  <description>Number of minutes between trash checkpoints.
-  Should be smaller or equal to fs.trash.interval. If zero,
-  the value is set to the value of fs.trash.interval.
-  Every time the checkpointer runs it creates a new checkpoint
-  out of current and removes checkpoints created more than
-  fs.trash.interval minutes ago.
-  </description>
-</property>
-
-<property>
-  <name>fs.protected.directories</name>
-  <value></value>
-  <description>A comma-separated list of directories which cannot
-    be deleted even by the superuser unless they are empty. This
-    setting can be used to guard important system directories
-    against accidental deletion due to administrator error.
-  </description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.file.impl</name>
-  <value>org.apache.hadoop.fs.local.LocalFs</value>
-  <description>The AbstractFileSystem for file: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.har.impl</name>
-  <value>org.apache.hadoop.fs.HarFs</value>
-  <description>The AbstractFileSystem for har: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.hdfs.impl</name>
-  <value>org.apache.hadoop.fs.Hdfs</value>
-  <description>The FileSystem for hdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.viewfs.impl</name>
-  <value>org.apache.hadoop.fs.viewfs.ViewFs</value>
-  <description>The AbstractFileSystem for view file system for viewfs: uris
-  (ie client side mount table:).</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.ftp.impl</name>
-  <value>org.apache.hadoop.fs.ftp.FtpFs</value>
-  <description>The FileSystem for Ftp: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.webhdfs.impl</name>
-  <value>org.apache.hadoop.fs.WebHdfs</value>
-  <description>The FileSystem for webhdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.swebhdfs.impl</name>
-  <value>org.apache.hadoop.fs.SWebHdfs</value>
-  <description>The FileSystem for swebhdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.ftp.host</name>
-  <value>0.0.0.0</value>
-  <description>FTP filesystem connects to this server</description>
-</property>
-
-<property>
-  <name>fs.ftp.host.port</name>
-  <value>21</value>
-  <description>
-    FTP filesystem connects to fs.ftp.host on this port
-  </description>
-</property>
-
-<property>
-  <name>fs.df.interval</name>
-  <value>60000</value>
-  <description>Disk usage statistics refresh interval in msec.</description>
-</property>
-
-<property>
-  <name>fs.du.interval</name>
-  <value>600000</value>
-  <description>File space usage statistics refresh interval in msec.</description>
-</property>
-
-<property>
-  <name>fs.s3.block.size</name>
-  <value>67108864</value>
-  <description>Block size to use when writing files to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3.buffer.dir</name>
-  <value>${hadoop.tmp.dir}/s3</value>
-  <description>Determines where on the local filesystem the s3:/s3n: filesystem
-  should store files before sending them to S3
-  (or after retrieving them from S3).
-  </description>
-</property>
-
-<property>
-  <name>fs.s3.maxRetries</name>
-  <value>4</value>
-  <description>The maximum number of retries for reading or writing files to S3,
-  before we signal failure to the application.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3.sleepTimeSeconds</name>
-  <value>10</value>
-  <description>The number of seconds to sleep between each S3 retry.
-  </description>
-</property>
-
-<property>
-  <name>fs.automatic.close</name>
-  <value>true</value>
-  <description>By default, FileSystem instances are automatically closed at program
-  exit using a JVM shutdown hook. Setting this property to false disables this
-  behavior. This is an advanced option that should only be used by server applications
-  requiring a more carefully orchestrated shutdown sequence.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.block.size</name>
-  <value>67108864</value>
-  <description>Block size to use when reading files using the native S3
-  filesystem (s3n: URIs).</description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.uploads.enabled</name>
-  <value>false</value>
-  <description>Setting this property to true enables multiple uploads to
-  native S3 filesystem. When uploading a file, it is split into blocks
-  if the size is larger than fs.s3n.multipart.uploads.block.size.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.uploads.block.size</name>
-  <value>67108864</value>
-  <description>The block size for multipart uploads to native S3 filesystem.
-  Default size is 64MB.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.copy.block.size</name>
-  <value>5368709120</value>
-  <description>The block size for multipart copy in native S3 filesystem.
-  Default size is 5GB.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.server-side-encryption-algorithm</name>
-  <value></value>
-  <description>Specify a server-side encryption algorithm for S3.
-  Unset by default, and the only other currently allowable value is AES256.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.access.key</name>
-  <description>AWS access key ID used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
-</property>
-
-<property>
-  <name>fs.s3a.secret.key</name>
-  <description>AWS secret key used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
-</property>
-
-<property>
-  <name>fs.s3a.aws.credentials.provider</name>
-  <description>
-	  Comma-separated class names of credential provider classes which implement
-	  com.amazonaws.auth.AWSCredentialsProvider.
-
-	  These are loaded and queried in sequence for a valid set of credentials.
-	  Each listed class must implement one of the following means of
-	  construction, which are attempted in order:
-	  1. a public constructor accepting java.net.URI and
-	  org.apache.hadoop.conf.Configuration,
-	  2. a public static method named getInstance that accepts no
-	  arguments and returns an instance of
-	  com.amazonaws.auth.AWSCredentialsProvider, or
-	  3. a public default constructor.
-
-	  Specifying
-	  org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider
-	  allows
-	  anonymous access to a publicly accessible S3 bucket without any credentials.
-	  Please note that allowing anonymous access to an S3 bucket compromises
-	  security and therefore is unsuitable for most use cases. It can be useful
-	  for accessing public data sets without requiring AWS credentials.
-
-	  If unspecified, then the default list of credential provider classes,
-	  queried in sequence, is:
-	  1. org.apache.hadoop.fs.s3a.BasicAWSCredentialsProvider:
-	  supports static
-	  configuration of AWS access key ID and secret access key. See also
-	  fs.s3a.access.key and fs.s3a.secret.key.
-	  2. com.amazonaws.auth.EnvironmentVariableCredentialsProvider: supports
-	  configuration of AWS access key ID and secret access key in
-	  environment variables named AWS_ACCESS_KEY_ID and
-	  AWS_SECRET_ACCESS_KEY, as documented in the AWS SDK.
-	  3.
-	  org.apache.hadoop.fs.s3a.SharedInstanceProfileCredentialsProvider:
-	  a shared instance of
-	  com.amazonaws.auth.InstanceProfileCredentialsProvider from the AWS
-	  SDK, which supports use of instance profile credentials if running
-	  in an EC2 VM. Using this shared instance potentially reduces load
-	  on the EC2 instance metadata service for multi-threaded
-	  applications.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.session.token</name>
-  <description>Session token, when using org.apache.hadoop.fs.s3a.TemporaryAWSCredentialsProvider
-    as one of the providers.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.security.credential.provider.path</name>
-  <value />
-  <description>
-    Optional comma separated list of credential providers, a list
-    which is prepended to that set in hadoop.security.credential.provider.path
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.maximum</name>
-  <value>15</value>
-  <description>Controls the maximum number of simultaneous connections to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.ssl.enabled</name>
-  <value>true</value>
-  <description>Enables or disables SSL connections to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3a.endpoint</name>
-  <description>AWS S3 endpoint to connect to. An up-to-date list is
-    provided in the AWS Documentation: regions and endpoints. Without this
-    property, the standard region (s3.amazonaws.com) is assumed.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.path.style.access</name>
-  <value>false</value>
-  <description>Enable S3 path style access ie disabling the default virtual hosting behaviour.
-    Useful for S3A-compliant storage providers as it removes the need to set up DNS for virtual hosting.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.host</name>
-  <description>Hostname of the (optional) proxy server for S3 connections.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.port</name>
-  <description>Proxy server port. If this property is not set
-    but fs.s3a.proxy.host is, port 80 or 443 is assumed (consistent with
-    the value of fs.s3a.connection.ssl.enabled).</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.username</name>
-  <description>Username for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.password</name>
-  <description>Password for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.domain</name>
-  <description>Domain for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.workstation</name>
-  <description>Workstation for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.attempts.maximum</name>
-  <value>20</value>
-  <description>How many times we should retry commands on transient errors.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.establish.timeout</name>
-  <value>5000</value>
-  <description>Socket connection setup timeout in milliseconds.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.timeout</name>
-  <value>200000</value>
-  <description>Socket connection timeout in milliseconds.</description>
-</property>
-
-<property>
-  <name>fs.s3a.socket.send.buffer</name>
-  <value>8192</value>
-  <description>Socket send buffer hint to amazon connector. Represented in bytes.</description>
-</property>
-
-<property>
-  <name>fs.s3a.socket.recv.buffer</name>
-  <value>8192</value>
-  <description>Socket receive buffer hint to amazon connector. Represented in bytes.</description>
-</property>
-
-<property>
-  <name>fs.s3a.paging.maximum</name>
-  <value>5000</value>
-  <description>How many keys to request from S3 when doing
-     directory listings at a time.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.max</name>
-  <value>10</value>
-  <description>The total number of threads available in the filesystem for data
-    uploads *or any other queued filesystem operation*.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.keepalivetime</name>
-  <value>60</value>
-  <description>Number of seconds a thread can be idle before being
-    terminated.</description>
-</property>
-
-<property>
-  <name>fs.s3a.max.total.tasks</name>
-  <value>5</value>
-  <description>The number of operations which can be queued for execution</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.size</name>
-  <value>100M</value>
-  <description>How big (in bytes) to split upload or copy operations up into.
-    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.threshold</name>
-  <value>2147483647</value>
-  <description>How big (in bytes) to split upload or copy operations up into.
-    This also controls the partition size in renamed files, as rename() involves
-    copying the source file(s).
-    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.multiobjectdelete.enable</name>
-  <value>true</value>
-  <description>When enabled, multiple single-object delete requests are replaced by
-    a single 'delete multiple objects'-request, reducing the number of requests.
-    Beware: legacy S3-compatible object stores might not support this request.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.acl.default</name>
-  <description>Set a canned ACL for newly created and copied objects. Value may be Private,
-      PublicRead, PublicReadWrite, AuthenticatedRead, LogDeliveryWrite, BucketOwnerRead,
-      or BucketOwnerFullControl.</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.purge</name>
-  <value>false</value>
-  <description>True if you want to purge existing multipart uploads that may not have been
-    completed/aborted correctly. The corresponding purge age is defined in
-    fs.s3a.multipart.purge.age.
-    If set, when the filesystem is instantiated then all outstanding uploads
-    older than the purge age will be terminated -across the entire bucket.
-    This will impact multipart uploads by other applications and users. so should
-    be used sparingly, with an age value chosen to stop failed uploads, without
-    breaking ongoing operations.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.purge.age</name>
-  <value>86400</value>
-  <description>Minimum age in seconds of multipart uploads to purge.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.server-side-encryption-algorithm</name>
-  <description>Specify a server-side encryption algorithm for s3a: file system.
-    Unset by default, and the only other currently allowable value is AES256.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.signing-algorithm</name>
-  <description>Override the default signing algorithm so legacy
-    implementations can still be used</description>
-</property>
-
-<property>
-  <name>fs.s3a.block.size</name>
-  <value>32M</value>
-  <description>Block size to use when reading files using s3a: file system.
-    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.buffer.dir</name>
-  <value>${hadoop.tmp.dir}/s3a</value>
-  <description>Comma separated list of directories that will be used to buffer file
-    uploads to.</description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload</name>
-  <value>false</value>
-  <description>
-    Use the incremental block-based fast upload mechanism with
-    the buffering mechanism set in fs.s3a.fast.upload.buffer.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload.buffer</name>
-  <value>disk</value>
-  <description>
-    The buffering mechanism to use when using S3A fast upload
-    (fs.s3a.fast.upload=true). Values: disk, array, bytebuffer.
-    This configuration option has no effect if fs.s3a.fast.upload is false.
-
-    "disk" will use the directories listed in fs.s3a.buffer.dir as
-    the location(s) to save data prior to being uploaded.
-
-    "array" uses arrays in the JVM heap
-
-    "bytebuffer" uses off-heap memory within the JVM.
-
-    Both "array" and "bytebuffer" will consume memory in a single stream up to the number
-    of blocks set by:
-
-        fs.s3a.multipart.size * fs.s3a.fast.upload.active.blocks.
-
-    If using either of these mechanisms, keep this value low
-
-    The total number of threads performing work across all threads is set by
-    fs.s3a.threads.max, with fs.s3a.max.total.tasks values setting the number of queued
-    work items.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload.active.blocks</name>
-  <value>4</value>
-  <description>
-    Maximum Number of blocks a single output stream can have
-    active (uploading, or queued to the central FileSystem
-    instance's pool of queued operations.
-
-    This stops a single stream overloading the shared thread pool.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.readahead.range</name>
-  <value>64K</value>
-  <description>Bytes to read ahead during a seek() before closing and
-  re-opening the S3 HTTP connection. This option will be overridden if
-  any call to setReadahead() is made to an open stream.
-  A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.user.agent.prefix</name>
-  <value></value>
-  <description>
-    Sets a custom value that will be prepended to the User-Agent header sent in
-    HTTP requests to the S3 back-end by S3AFileSystem.  The User-Agent header
-    always includes the Hadoop version number followed by a string generated by
-    the AWS SDK.  An example is "User-Agent: Hadoop 2.8.0, aws-sdk-java/1.10.6".
-    If this optional property is set, then its value is prepended to create a
-    customized User-Agent.  For example, if this configuration property was set
-    to "MyApp", then an example of the resulting User-Agent would be
-    "User-Agent: MyApp, Hadoop 2.8.0, aws-sdk-java/1.10.6".
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.impl</name>
-  <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
-  <description>The implementation class of the S3A Filesystem</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.s3a.impl</name>
-  <value>org.apache.hadoop.fs.s3a.S3A</value>
-  <description>The implementation class of the S3A AbstractFileSystem.</description>
-</property>
-
-<property>
-  <name>io.seqfile.compress.blocksize</name>
-  <value>1000000</value>
-  <description>The minimum block size for compression in block compressed
-          SequenceFiles.
-  </description>
-</property>
-
- <property>
-  <name>io.mapfile.bloom.size</name>
-  <value>1048576</value>
-  <description>The size of BloomFilter-s used in BloomMapFile. Each time this many
-  keys is appended the next BloomFilter will be created (inside a DynamicBloomFilter).
-  Larger values minimize the number of filters, which slightly increases the performance,
-  but may waste too much space if the total number of keys is usually much smaller
-  than this number.
-  </description>
-</property>
-
-<property>
-  <name>io.mapfile.bloom.error.rate</name>
-  <value>0.005</value>
-  <description>The rate of false positives in BloomFilter-s used in BloomMapFile.
-  As this value decreases, the size of BloomFilter-s increases exponentially. This
-  value is the probability of encountering false positives (default is 0.5%).
-  </description>
-</property>
-
-<property>
-  <name>hadoop.util.hash.type</name>
-  <value>murmur</value>
-  <description>The default implementation of Hash. Currently this can take one of the
-  two values: 'murmur' to select MurmurHash and 'jenkins' to select JenkinsHash.
-  </description>
-</property>
-
-
-<!-- ipc properties -->
-
-<property>
-  <name>ipc.client.idlethreshold</name>
-  <value>4000</value>
-  <description>Defines the threshold number of connections after which
-               connections will be inspected for idleness.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.kill.max</name>
-  <value>10</value>
-  <description>Defines the maximum number of clients to disconnect in one go.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connection.maxidletime</name>
-  <value>10000</value>
-  <description>The maximum time in msec after which a client will bring down the
-               connection to the server.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.max.retries</name>
-  <value>10</value>
-  <description>Indicates the number of retries a client will make to establish
-               a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.retry.interval</name>
-  <value>1000</value>
-  <description>Indicates the number of milliseconds a client will wait for
-    before retrying to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.timeout</name>
-  <value>20000</value>
-  <description>Indicates the number of milliseconds a client will wait for the
-               socket to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.max.retries.on.timeouts</name>
-  <value>45</value>
-  <description>Indicates the number of retries a client will make on socket timeout
-               to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.tcpnodelay</name>
-  <value>true</value>
-  <description>Use TCP_NODELAY flag to bypass Nagle's algorithm transmission delays.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.low-latency</name>
-  <value>false</value>
-  <description>Use low-latency QoS markers for IPC connections.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.ping</name>
-  <value>true</value>
-  <description>Send a ping to the server when timeout on reading the response,
-  if set to true. If no failure is detected, the client retries until at least
-  a byte is read or the time given by ipc.client.rpc-timeout.ms is passed.
-  </description>
-</property>
-
-<property>
-  <name>ipc.ping.interval</name>
-  <value>60000</value>
-  <description>Timeout on waiting response from server, in milliseconds.
-  The client will send ping when the interval is passed without receiving bytes,
-  if ipc.client.ping is set to true.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.rpc-timeout.ms</name>
-  <value>0</value>
-  <description>Timeout on waiting response from server, in milliseconds.
-  If ipc.client.ping is set to true and this rpc-timeout is greater than
-  the value of ipc.ping.interval, the effective value of the rpc-timeout is
-  rounded up to multiple of ipc.ping.interval.
-  </description>
-</property>
-
-<property>
-  <name>ipc.server.listen.queue.size</name>
-  <value>128</value>
-  <description>Indicates the length of the listen queue for servers accepting
-               client connections.
-  </description>
-</property>
-
-<property>
-    <name>ipc.server.log.slow.rpc</name>
-    <value>false</value>
-    <description>This setting is useful to troubleshoot performance issues for
-     various services. If this value is set to true then we log requests that
-     fall into 99th percentile as well as increment RpcSlowCalls counter.
-    </description>
-</property>
-
-<property>
-  <name>ipc.maximum.data.length</name>
-  <value>67108864</value>
-  <description>This indicates the maximum IPC message length (bytes) that can be
-    accepted by the server. Messages larger than this value are rejected by the
-    immediately to avoid possible OOMs. This setting should rarely need to be
-    changed.
-  </description>
-</property>
-
-<property>
-  <name>ipc.maximum.response.length</name>
-  <value>134217728</value>
-  <description>This indicates the maximum IPC message length (bytes) that can be
-    accepted by the client. Messages larger than this value are rejected
-    immediately to avoid possible OOMs. This setting should rarely need to be
-    changed.  Set to 0 to disable.
-  </description>
-</property>
-
-<!-- Proxy Configuration -->
-
-<property>
-  <name>hadoop.security.impersonation.provider.class</name>
-  <value></value>
-  <description>A class which implements ImpersonationProvider interface, used to
-       authorize whether one user can impersonate a specific user.
-       If not specified, the DefaultImpersonationProvider will be used.
-       If a class is specified, then that class will be used to determine
-       the impersonation capability.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.socket.factory.class.default</name>
-  <value>org.apache.hadoop.net.StandardSocketFactory</value>
-  <description> Default SocketFactory to use. This parameter is expected to be
-    formatted as "package.FactoryClassName".
-  </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
-  <value></value>
-  <description> SocketFactory to use to connect to a DFS. If null or empty, use
-    hadoop.rpc.socket.class.default. This socket factory is also used by
-    DFSClient to create sockets to DataNodes.
-  </description>
-</property>
-
-
-
-<property>
-  <name>hadoop.socks.server</name>
-  <value></value>
-  <description> Address (host:port) of the SOCKS server to be used by the
-    SocksSocketFactory.
-  </description>
-</property>
-
-<!-- Topology Configuration -->
-<property>
-  <name>net.topology.node.switch.mapping.impl</name>
-  <value>org.apache.hadoop.net.ScriptBasedMapping</value>
-  <description> The default implementation of the DNSToSwitchMapping. It
-    invokes a script specified in net.topology.script.file.name to resolve
-    node names. If the value for net.topology.script.file.name is not set, the
-    default value of DEFAULT_RACK is returned for all node names.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.impl</name>
-  <value>org.apache.hadoop.net.NetworkTopology</value>
-  <description> The default implementation of NetworkTopology which is classic three layer one.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.script.file.name</name>
-  <value></value>
-  <description> The script name that should be invoked to resolve DNS names to
-    NetworkTopology names. Example: the script would take host.foo.bar as an
-    argument, and return /rack1 as the output.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.script.number.args</name>
-  <value>100</value>
-  <description> The max number of args that the script configured with
-    net.topology.script.file.name should be run with. Each arg is an
-    IP address.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.table.file.name</name>
-  <value></value>
-  <description> The file name for a topology file, which is used when the
-    net.topology.node.switch.mapping.impl property is set to
-    org.apache.hadoop.net.TableMapping. The file format is a two column text
-    file, with columns separated by whitespace. The first column is a DNS or
-    IP address and the second column specifies the rack where the address maps.
-    If no entry corresponding to a host in the cluster is found, then
-    /default-rack is assumed.
-  </description>
-</property>
-
-<!-- Local file system -->
-<property>
-  <name>file.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>file.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  file.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>file.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>file.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>file.replication</name>
-  <value>1</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- s3 File System -->
-
-<property>
-  <name>s3.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>s3.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  s3.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>s3.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>s3.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>s3.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- s3native File System -->
-
-<property>
-  <name>s3native.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>s3native.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  s3native.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>s3native.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>s3native.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>s3native.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- FTP file system -->
-<property>
-  <name>ftp.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>ftp.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  ftp.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>ftp.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>ftp.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>ftp.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- Tfile -->
-
-<property>
-  <name>tfile.io.chunk.size</name>
-  <value>1048576</value>
-  <description>
-    Value chunk size in bytes. Default  to
-    1MB. Values of the length less than the chunk size is
-    guaranteed to have known value length in read time (See also
-    TFile.Reader.Scanner.Entry.isValueLengthKnown()).
-  </description>
-</property>
-
-<property>
-  <name>tfile.fs.output.buffer.size</name>
-  <value>262144</value>
-  <description>
-    Buffer size used for FSDataOutputStream in bytes.
-  </description>
-</property>
-
-<property>
-  <name>tfile.fs.input.buffer.size</name>
-  <value>262144</value>
-  <description>
-    Buffer size used for FSDataInputStream in bytes.
-  </description>
-</property>
-
-<!-- HTTP web-consoles Authentication -->
-
-<property>
-  <name>hadoop.http.authentication.type</name>
-  <value>simple</value>
-  <description>
-    Defines authentication used for Oozie HTTP endpoint.
-    Supported values are: simple | kerberos | #AUTHENTICATION_HANDLER_CLASSNAME#
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.token.validity</name>
-  <value>36000</value>
-  <description>
-    Indicates how long (in seconds) an authentication token is valid before it has
-    to be renewed.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.signature.secret.file</name>
-  <value>${user.home}/hadoop-http-auth-signature-secret</value>
-  <description>
-    The signature secret for signing the authentication tokens.
-    The same secret should be used for JT/NN/DN/TT configurations.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.cookie.domain</name>
-  <value></value>
-  <description>
-    The domain to use for the HTTP cookie that stores the authentication token.
-    In order to authentiation to work correctly across all Hadoop nodes web-consoles
-    the domain must be correctly set.
-    IMPORTANT: when using IP addresses, browsers ignore cookies with domain settings.
-    For this setting to work properly all nodes in the cluster must be configured
-    to generate URLs with hostname.domain names on it.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.simple.anonymous.allowed</name>
-  <value>true</value>
-  <description>
-    Indicates if anonymous requests are allowed when using 'simple' authentication.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.kerberos.principal</name>
-  <value>HTTP/_HOST@LOCALHOST</value>
-  <description>
-    Indicates the Kerberos principal to be used for HTTP endpoint.
-    The principal MUST start with 'HTTP/' as per Kerberos HTTP SPNEGO specification.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.kerberos.keytab</name>
-  <value>${user.home}/hadoop.keytab</value>
-  <description>
-    Location of the keytab file with the credentials for the principal.
-    Referring to the same keytab file Oozie uses for its Kerberos credentials for Hadoop.
-  </description>
-</property>
-
-<!-- HTTP CORS support -->
-<property>
-  <description>Enable/disable the cross-origin (CORS) filter.</description>
-  <name>hadoop.http.cross-origin.enabled</name>
-  <value>false</value>
-</property>
-
-<property>
-  <description>Comma separated list of origins that are allowed for web
-    services needing cross-origin (CORS) support. Wildcards (*) and patterns
-    allowed</description>
-  <name>hadoop.http.cross-origin.allowed-origins</name>
-  <value>*</value>
-</property>
-
-<property>
-  <description>Comma separated list of methods that are allowed for web
-    services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.allowed-methods</name>
-  <value>GET,POST,HEAD</value>
-</property>
-
-<property>
-  <description>Comma separated list of headers that are allowed for web
-    services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.allowed-headers</name>
-  <value>X-Requested-With,Content-Type,Accept,Origin</value>
-</property>
-
-<property>
-  <description>The number of seconds a pre-flighted request can be cached
-    for web services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.max-age</name>
-  <value>1800</value>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.methods</name>
-  <value></value>
-  <description>
-    List of fencing methods to use for service fencing. May contain
-    builtin methods (eg shell and sshfence) or user-defined method.
-  </description>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.ssh.connect-timeout</name>
-  <value>30000</value>
-  <description>
-    SSH connection timeout, in milliseconds, to use with the builtin
-    sshfence fencer.
-  </description>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.ssh.private-key-files</name>
-  <value></value>
-  <description>
-    The SSH private key files to use with the builtin sshfence fencer.
-  </description>
-</property>
-
-
-<!-- Static Web User Filter properties. -->
-<property>
-  <description>
-    The user name to filter as, on static web filters
-    while rendering content. An example use is the HDFS
-    web UI (user to be used for browsing files).
-  </description>
-  <name>hadoop.http.staticuser.user</name>
-  <value>dr.who</value>
-</property>
-
-<property>
-  <name>ha.zookeeper.quorum</name>
-  <description>
-    A list of ZooKeeper server addresses, separated by commas, that are
-    to be used by the ZKFailoverController in automatic failover.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.session-timeout.ms</name>
-  <value>5000</value>
-  <description>
-    The session timeout to use when the ZKFC connects to ZooKeeper.
-    Setting this value to a lower value implies that server crashes
-    will be detected more quickly, but risks triggering failover too
-    aggressively in the case of a transient error or network blip.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.parent-znode</name>
-  <value>/hadoop-ha</value>
-  <description>
-    The ZooKeeper znode under which the ZK failover controller stores
-    its information. Note that the nameservice ID is automatically
-    appended to this znode, so it is not normally necessary to
-    configure this, even in a federated environment.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.acl</name>
-  <value>world:anyone:rwcda</value>
-  <description>
-    A comma-separated list of ZooKeeper ACLs to apply to the znodes
-    used by automatic failover. These ACLs are specified in the same
-    format as used by the ZooKeeper CLI.
-
-    If the ACL itself contains secrets, you may instead specify a
-    path to a file, prefixed with the '@' symbol, and the value of
-    this configuration will be loaded from within.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.auth</name>
-  <value></value>
-  <description>
-    A comma-separated list of ZooKeeper authentications to add when
-    connecting to ZooKeeper. These are specified in the same format
-    as used by the &quot;addauth&quot; command in the ZK CLI. It is
-    important that the authentications specified here are sufficient
-    to access znodes with the ACL specified in ha.zookeeper.acl.
-
-    If the auths contain secrets, you may instead specify a
-    path to a file, prefixed with the '@' symbol, and the value of
-    this configuration will be loaded from within.
-  </description>
-</property>
-
-<!-- SSLFactory configuration -->
-
-<property>
-  <name>hadoop.ssl.keystores.factory.class</name>
-  <value>org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory</value>
-  <description>
-    The keystores factory to use for retrieving certificates.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.require.client.cert</name>
-  <value>false</value>
-  <description>Whether client certificates are required</description>
-</property>
-
-<property>
-  <name>hadoop.ssl.hostname.verifier</name>
-  <value>DEFAULT</value>
-  <description>
-    The hostname verifier to provide for HttpsURLConnections.
-    Valid values are: DEFAULT, STRICT, STRICT_I6, DEFAULT_AND_LOCALHOST and
-    ALLOW_ALL
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.server.conf</name>
-  <value>ssl-server.xml</value>
-  <description>
-    Resource file from which ssl server keystore information will be extracted.
-    This file is looked up in the classpath, typically it should be in Hadoop
-    conf/ directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.client.conf</name>
-  <value>ssl-client.xml</value>
-  <description>
-    Resource file from which ssl client keystore information will be extracted
-    This file is looked up in the classpath, typically it should be in Hadoop
-    conf/ directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.enabled</name>
-  <value>false</value>
-  <description>
-    Deprecated. Use dfs.http.policy and yarn.http.policy instead.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.enabled.protocols</name>
-  <value>TLSv1</value>
-  <description>
-    Protocols supported by the ssl.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.jetty.logs.serve.aliases</name>
-  <value>true</value>
-  <description>
-    Enable/Disable aliases serving from jetty
-  </description>
-</property>
-
-<property>
-  <name>fs.permissions.umask-mode</name>
-  <value>022</value>
-  <description>
-    The umask used when creating files and directories.
-    Can be in octal or in symbolic. Examples are:
-    "022" (octal for u=rwx,g=r-x,o=r-x in symbolic),
-    or "u=rwx,g=rwx,o=" (symbolic for 007 in octal).
-  </description>
-</property>
-
-<!-- ha properties -->
-
-<property>
-  <name>ha.health-monitor.connect-retry-interval.ms</name>
-  <value>1000</value>
-  <description>
-    How often to retry connecting to the service.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.check-interval.ms</name>
-  <value>1000</value>
-  <description>
-    How often to check the service.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.sleep-after-disconnect.ms</name>
-  <value>1000</value>
-  <description>
-    How long to sleep after an unexpected RPC error.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.rpc-timeout.ms</name>
-  <value>45000</value>
-  <description>
-    Timeout for the actual monitorHealth() calls.
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.new-active.rpc-timeout.ms</name>
-  <value>60000</value>
-  <description>
-    Timeout that the FC waits for the new active to become active
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.graceful-fence.rpc-timeout.ms</name>
-  <value>5000</value>
-  <description>
-    Timeout that the FC waits for the old active to go to standby
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.graceful-fence.connection.retries</name>
-  <value>1</value>
-  <description>
-    FC connection retries for graceful fencing
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.cli-check.rpc-timeout.ms</name>
-  <value>20000</value>
-  <description>
-    Timeout that the CLI (manual) FC waits for monitorHealth, getServiceState
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.fallback-to-simple-auth-allowed</name>
-  <value>false</value>
-  <description>
-    When a client is configured to attempt a secure connection, but attempts to
-    connect to an insecure server, that server may instruct the client to
-    switch to SASL SIMPLE (unsecure) authentication. This setting controls
-    whether or not the client will accept this instruction from the server.
-    When false (the default), the client will not allow the fallback to SIMPLE
-    authentication, and will abort the connection.
-  </description>
-</property>
-
-<property>
-  <name>fs.client.resolve.remote.symlinks</name>
-  <value>true</value>
-  <description>
-      Whether to resolve symlinks when accessing a remote Hadoop filesystem.
-      Setting this to false causes an exception to be thrown upon encountering
-      a symlink. This setting does not apply to local filesystems, which
-      automatically resolve local symlinks.
-  </description>
-</property>
-
-<property>
-  <name>nfs.exports.allowed.hosts</name>
-  <value>* rw</value>
-  <description>
-    By default, the export can be mounted by any client. The value string
-    contains machine name and access privilege, separated by whitespace
-    characters. The machine name format can be a single host, a Java regular
-    expression, or an IPv4 address. The access privilege uses rw or ro to
-    specify read/write or read-only access of the machines to exports. If the
-    access privilege is not provided, the default is read-only. Entries are separated by ";".
-    For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
-    Only the NFS gateway needs to restart after this property is updated.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.user.group.static.mapping.overrides</name>
-  <value>dr.who=;</value>
-  <description>
-    Static mapping of user to groups. This will override the groups if
-    available in the system for the specified user. In otherwords, groups
-    look-up will not happen for these users, instead groups mapped in this
-    configuration will be used.
-    Mapping should be in this format.
-    user1=group1,group2;user2=;user3=group2;
-    Default, "dr.who=;" will consider "dr.who" as user without groups.
-  </description>
-</property>
-
-<property>
-  <name>rpc.metrics.quantile.enable</name>
-  <value>false</value>
-  <description>
-    Setting this property to true and rpc.metrics.percentiles.intervals
-    to a comma-separated list of the granularity in seconds, the
-    50/75/90/95/99th percentile latency for rpc queue/processing time in
-    milliseconds are added to rpc metrics.
-  </description>
-</property>
-
-<property>
-  <name>rpc.metrics.percentiles.intervals</name>
-  <value></value>
-  <description>
-    A comma-separated list of the granularity in seconds for the metrics which
-    describe the 50/75/90/95/99th percentile latency for rpc queue/processing
-    time. The metrics are outputted if rpc.metrics.quantile.enable is set to
-    true.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.codec.classes.EXAMPLECIPHERSUITE</name>
-  <value></value>
-  <description>
-    The prefix for a given crypto codec, contains a comma-separated
-    list of implementation classes for a given crypto codec (eg EXAMPLECIPHERSUITE).
-    The first implementation will be used if available, others are fallbacks.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.codec.classes.aes.ctr.nopadding</name>
-  <value>org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec, org.apache.hadoop.crypto.JceAesCtrCryptoCodec</value>
-  <description>
-    Comma-separated list of crypto codec implementations for AES/CTR/NoPadding.
-    The first implementation will be used if available, others are fallbacks.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.cipher.suite</name>
-  <value>AES/CTR/NoPadding</value>
-  <description>
-    Cipher suite for crypto codec.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.jce.provider</name>
-  <value></value>
-  <description>
-    The JCE provider name used in CryptoCodec.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.buffer.size</name>
-  <value>8192</value>
-  <description>
-    The buffer size used by CryptoInputStream and CryptoOutputStream.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.java.secure.random.algorithm</name>
-  <value>SHA1PRNG</value>
-  <description>
-    The java secure random algorithm.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.secure.random.impl</name>
-  <value></value>
-  <description>
-    Implementation of secure random.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.random.device.file.path</name>
-  <value>/dev/urandom</value>
-  <description>
-    OS security random device file path.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.key.provider.path</name>
-  <description>
-    The KeyProvider to use when managing zone keys, and interacting with
-    encryption keys when reading and writing to an encryption zone.
-  </description>
-</property>
-
-<property>
-  <name>fs.har.impl.disable.cache</name>
-  <value>true</value>
-  <description>Don't cache 'har' filesystem instances.</description>
-</property>
-
-<!--- KMSClientProvider configurations -->
-<property>
-  <name>hadoop.security.kms.client.authentication.retry-count</name>
-  <value>1</value>
-  <description>
-    Number of time to retry connecting to KMS on authentication failure
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.size</name>
-  <value>500</value>
-  <description>
-    Size of the EncryptedKeyVersion cache Queue for each key
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.low-watermark</name>
-  <value>0.3f</value>
-  <description>
-    If size of the EncryptedKeyVersion cache Queue falls below the
-    low watermark, this cache queue will be scheduled for a refill
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.num.refill.threads</name>
-  <value>2</value>
-  <description>
-    Number of threads to use for refilling depleted EncryptedKeyVersion
-    cache Queues
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.expiry</name>
-  <value>43200000</value>
-  <description>
-    Cache expiry time for a Key, after which the cache Queue for this
-    key will be dropped. Default = 12hrs
-  </description>
-</property>
-
- <property>
-  <name>ipc.server.max.connections</name>
-  <value>0</value>
-  <description>The maximum number of concurrent connections a server is allowed
-    to accept. If this limit is exceeded, incoming connections will first fill
-    the listen queue and then may go to an OS-specific listen overflow queue.
-    The client may fail or timeout, but the server can avoid running out of file
-    descriptors using this feature. 0 means no limit.
-  </description>
-</property>
-
-
-  <!-- YARN registry -->
-
-  <property>
-    <description>
-      Is the registry enabled in the YARN Resource Manager?
-
-      If true, the YARN RM will, as needed.
-      create the user and system paths, and purge
-      service records when containers, application attempts
-      and applications complete.
-
-      If false, the paths must be created by other means,
-      and no automatic cleanup of service records will take place.
-    </description>
-    <name>hadoop.registry.rm.enabled</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <description>
-      The root zookeeper node for the registry
-    </description>
-    <name>hadoop.registry.zk.root</name>
-    <value>/registry</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper session timeout in milliseconds
-    </description>
-    <name>hadoop.registry.zk.session.timeout.ms</name>
-    <value>60000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper connection timeout in milliseconds
-    </description>
-    <name>hadoop.registry.zk.connection.timeout.ms</name>
-    <value>15000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper connection retry count before failing
-    </description>
-    <name>hadoop.registry.zk.retry.times</name>
-    <value>5</value>
-  </property>
-
-  <property>
-    <description>
-    </description>
-    <name>hadoop.registry.zk.retry.interval.ms</name>
-    <value>1000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper retry limit in milliseconds, during
-      exponential backoff.
-
-      This places a limit even
-      if the retry times and interval limit, combined
-      with the backoff policy, result in a long retry
-      period
-    </description>
-    <name>hadoop.registry.zk.retry.ceiling.ms</name>
-    <value>60000</value>
-  </property>
-
-  <property>
-    <description>
-      List of hostname:port pairs defining the
-      zookeeper quorum binding for the registry
-    </description>
-    <name>hadoop.registry.zk.quorum</name>
-    <value>localhost:2181</value>
-  </property>
-
-  <property>
-    <description>
-      Key to set if the registry is secure. Turning it on
-      changes the permissions policy from "open access"
-      to restrictions on kerberos with the option of
-      a user adding one or more auth key pairs down their
-      own tree.
-    </description>
-    <name>hadoop.registry.secure</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <description>
-      A comma separated list of Zookeeper ACL identifiers with
-      system access to the registry in a secure cluster.
-
-      These are given full access to all entries.
-
-      If there is an "@" at the end of a SASL entry it
-      instructs the registry client to append the default kerberos domain.
-    </description>
-    <name>hadoop.registry.system.acls</name>
-    <value>sasl:yarn@, sasl:mapred@, sasl:hdfs@</value>
-  </property>
-
-  <property>
-    <description>
-      The kerberos realm: used to set the realm of
-      system principals which do not declare their realm,
-      and any other accounts that need the value.
-
-      If empty, the default realm of the running process
-      is used.
-
-      If neither are known and the realm is needed, then the registry
-      service/client will fail.
-    </description>
-    <name>hadoop.registry.kerberos.realm</name>
-    <value></value>
-  </property>
-
-  <property>
-    <description>
-      Key to define the JAAS context. Used in secure
-      mode
-    </description>
-    <name>hadoop.registry.jaas.context</name>
-    <value>Client</value>
-  </property>
-
-  <property>
-    <description>
-      Enable hdfs shell commands to display warnings if (fs.defaultFS) property
-      is not set.
-    </description>
-    <name>hadoop.shell.missing.defaultFs.warning</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <name>hadoop.shell.safely.delete.limit.num.files</name>
-    <value>100</value>
-    <description>Used by -safely option of hadoop fs shell -rm command to avoid
-      accidental deletion of large directories. When enabled, the -rm command
-      requires confirmation if the number of files to be deleted is greater than
-      this limit.  The default limit is 100 files. The warning is disabled if
-      the limit is 0 or the -safely is not specified in -rm command.
-    </description>
-  </property>
-
-  <property>
-    <name>fs.client.htrace.sampler.classes</name>
-    <value></value>
-    <description>The class names of the HTrace Samplers to use for Hadoop
-      filesystem clients.
-    </description>
-  </property>
-
-  <property>
-    <name>hadoop.htrace.span.receiver.classes</name>
-    <value></value>
-    <description>The class names of the Span Receivers to use for Hadoop.
-    </description>
-  </property>
-
-  <property>
-    <name>hadoop.caller.context.enabled</name>
-    <value>false</value>
-    <description>When the feature is enabled, additional fields are written into
-      name-node audit log records for auditing coarse granularity operations.
-    </description>
-  </property>
-  <property>
-    <name>hadoop.caller.context.max.size</name>
-    <value>128</value>
-    <description>The maximum bytes a caller context string can have. If the
-      passed caller context is longer than this maximum bytes, client will
-      truncate it before sending to server. Note that the server may have a
-      different maximum size, and will truncate the caller context to the
-      maximum size it allows.
-    </description>
-  </property>
-  <property>
-    <name>hadoop.caller.context.signature.max.size</name>
-    <value>40</value>
-    <description>
-      The caller's signature (optional) is for offline validation. If the
-      signature exceeds the maximum allowed bytes in server, the caller context
-      will be abandoned, in which case the caller context will not be recorded
-      in audit logs.
-    </description>
-  </property>
-
+	<property>
+		<name>hadoop.security.group.mapping</name>
+		<value>this.does.not.exist.class</value>
+	</property>
 </configuration>
diff --git a/flink-filesystems/flink-s3-fs-presto/src/main/java/org/apache/hadoop/conf/Configuration.java b/flink-filesystems/flink-s3-fs-presto/src/main/java/org/apache/hadoop/conf/Configuration.java
index ebf79489a5d..1cf35f4360f 100644
--- a/flink-filesystems/flink-s3-fs-presto/src/main/java/org/apache/hadoop/conf/Configuration.java
+++ b/flink-filesystems/flink-s3-fs-presto/src/main/java/org/apache/hadoop/conf/Configuration.java
@@ -646,21 +646,9 @@ private void handleDeprecation() {
 		}
 	}
 
-	static{
-		//print deprecation warning if hadoop-site.xml is found in classpath
-		ClassLoader cL = Thread.currentThread().getContextClassLoader();
-		if (cL == null) {
-			cL = Configuration.class.getClassLoader();
-		}
-		if(cL.getResource("hadoop-site.xml")!=null) {
-			LOG.warn("DEPRECATED: hadoop-site.xml found in the classpath. " +
-				"Usage of hadoop-site.xml is deprecated. Instead use core-site.xml, "
-				+ "mapred-site.xml and hdfs-site.xml to override properties of " +
-				"core-default-shaded.xml, mapred-default.xml and hdfs-default.xml " +
-				"respectively");
-		}
+	static {
 		addDefaultResource("core-default-shaded.xml");
-		addDefaultResource("core-site.xml");
+		addDefaultResource("core-default-testing.xml");
 	}
 
 	private Properties properties;
diff --git a/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-default-testing.xml b/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-default-testing.xml
new file mode 100644
index 00000000000..85c1f0d76f4
--- /dev/null
+++ b/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-default-testing.xml
@@ -0,0 +1,1978 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<!-- Do not modify this file directly.  Instead, copy entries that you -->
+<!-- wish to modify from this file into core-site.xml and change them -->
+<!-- there.  If core-site.xml does not already exist, create it.      -->
+
+<configuration>
+
+<!--- global properties -->
+
+<property>
+  <name>hadoop.common.configuration.version</name>
+  <value>0.23.0</value>
+  <description>version of this configuration file</description>
+</property>
+
+<property>
+  <name>hadoop.tmp.dir</name>
+  <value>/tmp/hadoop-${user.name}</value>
+  <description>A base for other temporary directories.</description>
+</property>
+
+<property>
+  <name>io.native.lib.available</name>
+  <value>true</value>
+  <description>Controls whether to use native libraries for bz2 and zlib
+    compression codecs or not. The property does not control any other native
+    libraries.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.filter.initializers</name>
+  <value>org.apache.hadoop.http.lib.StaticUserWebFilter</value>
+  <description>A comma separated list of class names. Each class in the list 
+  must extend org.apache.hadoop.http.FilterInitializer. The corresponding 
+  Filter will be initialized. Then, the Filter will be applied to all user 
+  facing jsp and servlet web pages.  The ordering of the list defines the 
+  ordering of the filters.</description>
+</property>
+
+<!--- security properties -->
+
+<property>
+  <name>hadoop.security.authorization</name>
+  <value>false</value>
+  <description>Is service-level authorization enabled?</description>
+</property>
+
+<property>
+  <name>hadoop.security.instrumentation.requires.admin</name>
+  <value>false</value>
+  <description>
+    Indicates if administrator ACLs are required to access
+    instrumentation servlets (JMX, METRICS, CONF, STACKS).
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.authentication</name>
+  <value>simple</value>
+  <description>Possible values are simple (no authentication), and kerberos
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping</name>
+  <value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
+  <description>
+    Class for user to group mapping (get groups for a given user) for ACL. 
+    The default implementation,
+    org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback, 
+    will determine if the Java Native Interface (JNI) is available. If JNI is 
+    available the implementation will use the API within hadoop to resolve a 
+    list of groups for a user. If JNI is not available then the shell 
+    implementation, ShellBasedUnixGroupsMapping, is used.  This implementation 
+    shells out to the Linux/Unix environment with the 
+    <code>bash -c groups</code> command to resolve a list of groups for a user.
+  </description>
+</property>
+
+<!-- 
+=== Multiple group mapping providers configuration sample === 
+  This sample illustrates a typical use case for CompositeGroupsMapping where
+Hadoop authentication uses MIT Kerberos which trusts an AD realm. In this case, service
+principals such as hdfs, mapred, hbase, hive, oozie and etc can be placed in In MIT Kerberos,
+but end users are just from the trusted AD. For the service principals, ShellBasedUnixGroupsMapping
+provider can be used to query their groups for efficiency, and for end users, LdapGroupsMapping 
+provider can be used. This avoids to add group entries in AD for service principals when only using 
+LdapGroupsMapping provider.
+  In case multiple ADs are involved and trusted by the MIT Kerberos in this use case, LdapGroupsMapping
+provider can be used more times with different AD specific configurations. This sample also shows how
+to do that. Here are the necessary configurations.
+
+<property>
+  <name>hadoop.security.group.mapping</name>
+  <value>org.apache.hadoop.security.CompositeGroupsMapping</value>
+  <description>
+    Class for user to group mapping (get groups for a given user) for ACL, which 
+    makes use of other multiple providers to provide the service.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.providers</name>
+  <value>shell4services,ad4usersX,ad4usersY</value>
+  <description>
+    Comma separated of names of other providers to provide user to group mapping. 
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.providers.combined</name>
+  <value>true</value>
+  <description>
+    true or false to indicate whether groups from the providers are combined or not. The default value is true
+    If true, then all the providers will be tried to get groups and all the groups are combined to return as
+    the final results. Otherwise, providers are tried one by one in the configured list order, and if any
+    groups are retrieved from any provider, then the groups will be returned without trying the left ones.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.provider.shell4services</name>
+  <value>org.apache.hadoop.security.ShellBasedUnixGroupsMapping</value>
+  <description>
+    Class for group mapping provider named by 'shell4services'. The name can then be referenced 
+    by hadoop.security.group.mapping.providers property.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.provider.ad4usersX</name>
+  <value>org.apache.hadoop.security.LdapGroupsMapping</value>
+  <description>
+    Class for group mapping provider named by 'ad4usersX'. The name can then be referenced 
+    by hadoop.security.group.mapping.providers property.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.provider.ad4usersY</name>
+  <value>org.apache.hadoop.security.LdapGroupsMapping</value>
+  <description>
+    Class for group mapping provider named by 'ad4usersY'. The name can then be referenced 
+    by hadoop.security.group.mapping.providers property.
+  </description>
+</property>
+
+<property>
+<name>hadoop.security.group.mapping.provider.ad4usersX.ldap.url</name>
+<value>ldap://ad-host-for-users-X:389</value>
+  <description>
+    ldap url for the provider named by 'ad4usersX'. Note this property comes from 
+    'hadoop.security.group.mapping.ldap.url'.
+  </description>
+</property>
+
+<property>
+<name>hadoop.security.group.mapping.provider.ad4usersY.ldap.url</name>
+<value>ldap://ad-host-for-users-Y:389</value>
+  <description>
+    ldap url for the provider named by 'ad4usersY'. Note this property comes from 
+    'hadoop.security.group.mapping.ldap.url'.
+  </description>
+</property>
+
+You also need to configure other properties like
+  hadoop.security.group.mapping.ldap.bind.password.file and etc.
+for ldap providers in the same way as above does.
+
+-->
+ 
+<property>
+  <name>hadoop.security.groups.cache.secs</name>
+  <value>300</value>
+  <description>
+    This is the config controlling the validity of the entries in the cache
+    containing the user->group mapping. When this duration has expired,
+    then the implementation of the group mapping provider is invoked to get
+    the groups of the user and then cached back.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.negative-cache.secs</name>
+  <value>30</value>
+  <description>
+    Expiration time for entries in the the negative user-to-group mapping
+    caching, in seconds. This is useful when invalid users are retrying
+    frequently. It is suggested to set a small value for this expiration, since
+    a transient error in group lookup could temporarily lock out a legitimate
+    user.
+
+    Set this to zero or negative value to disable negative user-to-group caching.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.warn.after.ms</name>
+  <value>5000</value>
+  <description>
+    If looking up a single user to group takes longer than this amount of
+    milliseconds, we will log a warning message.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.url</name>
+  <value></value>
+  <description>
+    The URL of the LDAP server to use for resolving user groups when using
+    the LdapGroupsMapping user to group mapping.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl</name>
+  <value>false</value>
+  <description>
+    Whether or not to use SSL when connecting to the LDAP server.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl.keystore</name>
+  <value></value>
+  <description>
+    File path to the SSL keystore that contains the SSL certificate required
+    by the LDAP server.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl.keystore.password.file</name>
+  <value></value>
+  <description>
+    The path to a file containing the password of the LDAP SSL keystore.
+
+    IMPORTANT: This file should be readable only by the Unix user running
+    the daemons.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.bind.user</name>
+  <value></value>
+  <description>
+    The distinguished name of the user to bind as when connecting to the LDAP
+    server. This may be left blank if the LDAP server supports anonymous binds.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.bind.password.file</name>
+  <value></value>
+  <description>
+    The path to a file containing the password of the bind user.
+
+    IMPORTANT: This file should be readable only by the Unix user running
+    the daemons.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.base</name>
+  <value></value>
+  <description>
+    The search base for the LDAP connection. This is a distinguished name,
+    and will typically be the root of the LDAP directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.filter.user</name>
+  <value>(&amp;(objectClass=user)(sAMAccountName={0}))</value>
+  <description>
+    An additional filter to use when searching for LDAP users. The default will
+    usually be appropriate for Active Directory installations. If connecting to
+    an LDAP server with a non-AD schema, this should be replaced with
+    (&amp;(objectClass=inetOrgPerson)(uid={0}). {0} is a special string used to
+    denote where the username fits into the filter.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.filter.group</name>
+  <value>(objectClass=group)</value>
+  <description>
+    An additional filter to use when searching for LDAP groups. This should be
+    changed when resolving groups against a non-Active Directory installation.
+    posixGroups are currently not a supported group class.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.attr.member</name>
+  <value>member</value>
+  <description>
+    The attribute of the group object that identifies the users that are
+    members of the group. The default will usually be appropriate for
+    any LDAP installation.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.attr.group.name</name>
+  <value>cn</value>
+  <description>
+    The attribute of the group object that identifies the group name. The
+    default will usually be appropriate for all LDAP systems.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.directory.search.timeout</name>
+  <value>10000</value>
+  <description>
+    The attribute applied to the LDAP SearchControl properties to set a
+    maximum time limit when searching and awaiting a result.
+    Set to 0 if infinite wait period is desired.
+    Default is 10 seconds. Units in milliseconds.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.service.user.name.key</name>
+  <value></value>
+  <description>
+    For those cases where the same RPC protocol is implemented by multiple
+    servers, this configuration is required for specifying the principal
+    name to use for the service when the client wishes to make an RPC call.
+  </description>
+</property>
+
+
+<property>
+    <name>hadoop.security.uid.cache.secs</name>
+    <value>14400</value>
+    <description>
+        This is the config controlling the validity of the entries in the cache
+        containing the userId to userName and groupId to groupName used by
+        NativeIO getFstat().
+    </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.protection</name>
+  <value>authentication</value>
+  <description>A comma-separated list of protection values for secured sasl 
+      connections. Possible values are authentication, integrity and privacy.
+      authentication means authentication only and no integrity or privacy; 
+      integrity implies authentication and integrity are enabled; and privacy 
+      implies all of authentication, integrity and privacy are enabled.
+      hadoop.security.saslproperties.resolver.class can be used to override
+      the hadoop.rpc.protection for a connection at the server side.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.saslproperties.resolver.class</name>
+  <value></value>
+  <description>SaslPropertiesResolver used to resolve the QOP used for a 
+      connection. If not specified, the full set of values specified in 
+      hadoop.rpc.protection is used while determining the QOP used for the 
+      connection. If a class is specified, then the QOP values returned by 
+      the class will be used while determining the QOP used for the connection.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.work.around.non.threadsafe.getpwuid</name>
+  <value>false</value>
+  <description>Some operating systems or authentication modules are known to
+  have broken implementations of getpwuid_r and getpwgid_r, such that these
+  calls are not thread-safe. Symptoms of this problem include JVM crashes
+  with a stack trace inside these functions. If your system exhibits this
+  issue, enable this configuration parameter to include a lock around the
+  calls as a workaround.
+
+  An incomplete list of some systems known to have this issue is available
+  at http://wiki.apache.org/hadoop/KnownBrokenPwuidImplementations
+  </description>
+</property>
+
+<property>
+  <name>hadoop.kerberos.kinit.command</name>
+  <value>kinit</value>
+  <description>Used to periodically renew Kerberos credentials when provided
+  to Hadoop. The default setting assumes that kinit is in the PATH of users
+  running the Hadoop client. Change this to the absolute path to kinit if this
+  is not the case.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.auth_to_local</name>
+  <value></value>
+  <description>Maps kerberos principals to local user names</description>
+</property>
+
+<!-- i/o properties -->
+<property>
+  <name>io.file.buffer.size</name>
+  <value>4096</value>
+  <description>The size of buffer for use in sequence files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+  
+<property>
+  <name>io.bytes.per.checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  io.file.buffer.size.</description>
+</property>
+
+<property>
+  <name>io.skip.checksum.errors</name>
+  <value>false</value>
+  <description>If true, when a checksum error is encountered while
+  reading a sequence file, entries are skipped, instead of throwing an
+  exception.</description>
+</property>
+
+<property>
+  <name>io.compression.codecs</name>
+  <value></value>
+  <description>A comma-separated list of the compression codec classes that can
+  be used for compression/decompression. In addition to any classes specified
+  with this property (which take precedence), codec classes on the classpath
+  are discovered using a Java ServiceLoader.</description>
+</property>
+
+<property>
+  <name>io.compression.codec.bzip2.library</name>
+  <value>system-native</value>
+  <description>The native-code library to be used for compression and
+  decompression by the bzip2 codec.  This library could be specified
+  either by by name or the full pathname.  In the former case, the
+  library is located by the dynamic linker, usually searching the
+  directories specified in the environment variable LD_LIBRARY_PATH.
+  
+  The value of "system-native" indicates that the default system
+  library should be used.  To indicate that the algorithm should
+  operate entirely in Java, specify "java-builtin".</description>
+</property>
+
+<property>
+  <name>io.serializations</name>
+  <value>org.apache.hadoop.io.serializer.WritableSerialization,org.apache.hadoop.io.serializer.avro.AvroSpecificSerialization,org.apache.hadoop.io.serializer.avro.AvroReflectSerialization</value>
+  <description>A list of serialization classes that can be used for
+  obtaining serializers and deserializers.</description>
+</property>
+
+<property>
+  <name>io.seqfile.local.dir</name>
+  <value>${hadoop.tmp.dir}/io/local</value>
+  <description>The local directory where sequence file stores intermediate
+  data files during merge.  May be a comma-separated list of
+  directories on different devices in order to spread disk i/o.
+  Directories that do not exist are ignored.
+  </description>
+</property>
+
+<property>
+  <name>io.map.index.skip</name>
+  <value>0</value>
+  <description>Number of index entries to skip between each entry.
+  Zero by default. Setting this to values larger than zero can
+  facilitate opening large MapFiles using less memory.</description>
+</property>
+
+<property>
+  <name>io.map.index.interval</name>
+  <value>128</value>
+  <description>
+    MapFile consist of two files - data file (tuples) and index file
+    (keys). For every io.map.index.interval records written in the
+    data file, an entry (record-key, data-file-position) is written
+    in the index file. This is to allow for doing binary search later
+    within the index file to look up records by their keys and get their
+    closest positions in the data file.
+  </description>
+</property>
+
+<!-- file system properties -->
+
+<property>
+  <name>fs.defaultFS</name>
+  <value>file:///</value>
+  <description>The name of the default file system.  A URI whose
+  scheme and authority determine the FileSystem implementation.  The
+  uri's scheme determines the config property (fs.SCHEME.impl) naming
+  the FileSystem implementation class.  The uri's authority is used to
+  determine the host, port, etc. for a filesystem.</description>
+</property>
+
+<property>
+  <name>fs.default.name</name>
+  <value>file:///</value>
+  <description>Deprecated. Use (fs.defaultFS) property
+  instead</description>
+</property>
+
+<property>
+  <name>fs.trash.interval</name>
+  <value>0</value>
+  <description>Number of minutes after which the checkpoint
+  gets deleted.  If zero, the trash feature is disabled.
+  This option may be configured both on the server and the
+  client. If trash is disabled server side then the client
+  side configuration is checked. If trash is enabled on the
+  server side then the value configured on the server is
+  used and the client configuration value is ignored.
+  </description>
+</property>
+
+<property>
+  <name>fs.trash.checkpoint.interval</name>
+  <value>0</value>
+  <description>Number of minutes between trash checkpoints.
+  Should be smaller or equal to fs.trash.interval. If zero,
+  the value is set to the value of fs.trash.interval.
+  Every time the checkpointer runs it creates a new checkpoint 
+  out of current and removes checkpoints created more than 
+  fs.trash.interval minutes ago.
+  </description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.file.impl</name>
+  <value>org.apache.hadoop.fs.local.LocalFs</value>
+  <description>The AbstractFileSystem for file: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.har.impl</name>
+  <value>org.apache.hadoop.fs.HarFs</value>
+  <description>The AbstractFileSystem for har: uris.</description>
+</property> 
+
+<property>
+  <name>fs.AbstractFileSystem.hdfs.impl</name>
+  <value>org.apache.hadoop.fs.Hdfs</value>
+  <description>The FileSystem for hdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.viewfs.impl</name>
+  <value>org.apache.hadoop.fs.viewfs.ViewFs</value>
+  <description>The AbstractFileSystem for view file system for viewfs: uris
+  (ie client side mount table:).</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.ftp.impl</name>
+  <value>org.apache.hadoop.fs.ftp.FtpFs</value>
+  <description>The FileSystem for Ftp: uris.</description>
+</property>
+
+<property>
+  <name>fs.ftp.host</name>
+  <value>0.0.0.0</value>
+  <description>FTP filesystem connects to this server</description>
+</property>
+
+<property>
+  <name>fs.ftp.host.port</name>
+  <value>21</value>
+  <description>
+    FTP filesystem connects to fs.ftp.host on this port
+  </description>
+</property>
+
+<property>
+  <name>fs.df.interval</name>
+  <value>60000</value>
+  <description>Disk usage statistics refresh interval in msec.</description>
+</property>
+
+<property>
+  <name>fs.du.interval</name>
+  <value>600000</value>
+  <description>File space usage statistics refresh interval in msec.</description>
+</property>
+
+<property>
+  <name>fs.s3.block.size</name>
+  <value>67108864</value>
+  <description>Block size to use when writing files to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3.buffer.dir</name>
+  <value>${hadoop.tmp.dir}/s3</value>
+  <description>Determines where on the local filesystem the S3 filesystem
+  should store files before sending them to S3
+  (or after retrieving them from S3).
+  </description>
+</property>
+
+<property>
+  <name>fs.s3.maxRetries</name>
+  <value>4</value>
+  <description>The maximum number of retries for reading or writing files to S3, 
+  before we signal failure to the application.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3.sleepTimeSeconds</name>
+  <value>10</value>
+  <description>The number of seconds to sleep between each S3 retry.
+  </description>
+</property>
+
+<property>
+  <name>fs.swift.impl</name>
+  <value>org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem</value>
+  <description>The implementation class of the OpenStack Swift Filesystem</description>
+</property>
+
+<property>
+  <name>fs.automatic.close</name>
+  <value>true</value>
+  <description>By default, FileSystem instances are automatically closed at program
+  exit using a JVM shutdown hook. Setting this property to false disables this
+  behavior. This is an advanced option that should only be used by server applications
+  requiring a more carefully orchestrated shutdown sequence.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.block.size</name>
+  <value>67108864</value>
+  <description>Block size to use when reading files using the native S3
+  filesystem (s3n: URIs).</description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.uploads.enabled</name>
+  <value>false</value>
+  <description>Setting this property to true enables multiple uploads to
+  native S3 filesystem. When uploading a file, it is split into blocks
+  if the size is larger than fs.s3n.multipart.uploads.block.size.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.uploads.block.size</name>
+  <value>67108864</value>
+  <description>The block size for multipart uploads to native S3 filesystem.
+  Default size is 64MB.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.copy.block.size</name>
+  <value>5368709120</value>
+  <description>The block size for multipart copy in native S3 filesystem.
+  Default size is 5GB.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.server-side-encryption-algorithm</name>
+  <value></value>
+  <description>Specify a server-side encryption algorithm for S3.
+  The default is NULL, and the only other currently allowable value is AES256.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.awsAccessKeyId</name>
+  <description>AWS access key ID. Omit for Role-based authentication.</description>
+</property>
+
+<property>
+  <name>fs.s3a.awsSecretAccessKey</name>
+  <description>AWS secret key. Omit for Role-based authentication.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.maximum</name>
+  <value>15</value>
+  <description>Controls the maximum number of simultaneous connections to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.ssl.enabled</name>
+  <value>true</value>
+  <description>Enables or disables SSL connections to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3a.endpoint</name>
+  <description>AWS S3 endpoint to connect to. An up-to-date list is
+    provided in the AWS Documentation: regions and endpoints. Without this
+    property, the standard region (s3.amazonaws.com) is assumed.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.host</name>
+  <description>Hostname of the (optional) proxy server for S3 connections.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.port</name>
+  <description>Proxy server port. If this property is not set
+    but fs.s3a.proxy.host is, port 80 or 443 is assumed (consistent with
+    the value of fs.s3a.connection.ssl.enabled).</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.username</name>
+  <description>Username for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.password</name>
+  <description>Password for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.domain</name>
+  <description>Domain for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.workstation</name>
+  <description>Workstation for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.attempts.maximum</name>
+  <value>10</value>
+  <description>How many times we should retry commands on transient errors.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.establish.timeout</name>
+  <value>5000</value>
+  <description>Socket connection setup timeout in milliseconds.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.timeout</name>
+  <value>50000</value>
+  <description>Socket connection timeout in milliseconds.</description>
+</property>
+
+<property>
+  <name>fs.s3a.paging.maximum</name>
+  <value>5000</value>
+  <description>How many keys to request from S3 when doing 
+     directory listings at a time.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.max</name>
+  <value>256</value>
+  <description> Maximum number of concurrent active (part)uploads,
+    which each use a thread from the threadpool.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.core</name>
+  <value>15</value>
+  <description>Number of core threads in the threadpool.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.keepalivetime</name>
+  <value>60</value>
+  <description>Number of seconds a thread can be idle before being
+    terminated.</description>
+</property>
+
+<property>
+  <name>fs.s3a.max.total.tasks</name>
+  <value>1000</value>
+  <description>Number of (part)uploads allowed to the queue before
+    blocking additional uploads.</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.size</name>
+  <value>104857600</value>
+  <description>How big (in bytes) to split upload or copy operations up into.</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.threshold</name>
+  <value>2147483647</value>
+  <description>Threshold before uploads or copies use parallel multipart operations.</description>
+</property>
+
+<property>
+  <name>fs.s3a.acl.default</name>
+  <description>Set a canned ACL for newly created and copied objects. Value may be private, 
+     public-read, public-read-write, authenticated-read, log-delivery-write, 
+     bucket-owner-read, or bucket-owner-full-control.</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.purge</name>
+  <value>false</value>
+  <description>True if you want to purge existing multipart uploads that may not have been
+     completed/aborted correctly</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.purge.age</name>
+  <value>86400</value>
+  <description>Minimum age in seconds of multipart uploads to purge</description>
+</property>
+
+<property>
+  <name>fs.s3a.buffer.dir</name>
+  <value>${hadoop.tmp.dir}/s3a</value>
+  <description>Comma separated list of directories that will be used to buffer file 
+    uploads to.</description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload</name>
+  <value>false</value>
+  <description>Upload directly from memory instead of buffering to
+    disk first. Memory usage and parallelism can be controlled as up to
+    fs.s3a.multipart.size memory is consumed for each (part)upload actively
+    uploading (fs.s3a.threads.max) or queueing (fs.s3a.max.total.tasks)</description>
+</property>
+
+  <property>
+  <name>fs.s3a.fast.buffer.size</name>
+  <value>1048576</value>
+  <description>Size of initial memory buffer in bytes allocated for an
+    upload. No effect if fs.s3a.fast.upload is false.</description>
+</property>
+
+<property>
+  <name>fs.s3a.impl</name>
+  <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
+  <description>The implementation class of the S3A Filesystem</description>
+</property>
+
+<property>
+  <name>io.seqfile.compress.blocksize</name>
+  <value>1000000</value>
+  <description>The minimum block size for compression in block compressed 
+          SequenceFiles.
+  </description>
+</property>
+
+<property>
+  <name>io.seqfile.lazydecompress</name>
+  <value>true</value>
+  <description>Should values of block-compressed SequenceFiles be decompressed
+          only when necessary.
+  </description>
+</property>
+
+<property>
+  <name>io.seqfile.sorter.recordlimit</name>
+  <value>1000000</value>
+  <description>The limit on number of records to be kept in memory in a spill 
+          in SequenceFiles.Sorter
+  </description>
+</property>
+
+ <property>
+  <name>io.mapfile.bloom.size</name>
+  <value>1048576</value>
+  <description>The size of BloomFilter-s used in BloomMapFile. Each time this many
+  keys is appended the next BloomFilter will be created (inside a DynamicBloomFilter).
+  Larger values minimize the number of filters, which slightly increases the performance,
+  but may waste too much space if the total number of keys is usually much smaller
+  than this number.
+  </description>
+</property>
+
+<property>
+  <name>io.mapfile.bloom.error.rate</name>
+  <value>0.005</value>
+  <description>The rate of false positives in BloomFilter-s used in BloomMapFile.
+  As this value decreases, the size of BloomFilter-s increases exponentially. This
+  value is the probability of encountering false positives (default is 0.5%).
+  </description>
+</property>
+
+<property>
+  <name>hadoop.util.hash.type</name>
+  <value>murmur</value>
+  <description>The default implementation of Hash. Currently this can take one of the
+  two values: 'murmur' to select MurmurHash and 'jenkins' to select JenkinsHash.
+  </description>
+</property>
+
+
+<!-- ipc properties -->
+
+<property>
+  <name>ipc.client.idlethreshold</name>
+  <value>4000</value>
+  <description>Defines the threshold number of connections after which
+               connections will be inspected for idleness.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.kill.max</name>
+  <value>10</value>
+  <description>Defines the maximum number of clients to disconnect in one go.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connection.maxidletime</name>
+  <value>10000</value>
+  <description>The maximum time in msec after which a client will bring down the
+               connection to the server.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.max.retries</name>
+  <value>10</value>
+  <description>Indicates the number of retries a client will make to establish
+               a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.retry.interval</name>
+  <value>1000</value>
+  <description>Indicates the number of milliseconds a client will wait for
+    before retrying to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.timeout</name>
+  <value>20000</value>
+  <description>Indicates the number of milliseconds a client will wait for the 
+               socket to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.max.retries.on.timeouts</name>
+  <value>45</value>
+  <description>Indicates the number of retries a client will make on socket timeout
+               to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.ping</name>
+  <value>true</value>
+  <description>Send a ping to the server when timeout on reading the response,
+  if set to true. If no failure is detected, the client retries until at least
+  a byte is read.
+  </description>
+</property>
+
+<property>
+  <name>ipc.ping.interval</name>
+  <value>60000</value>
+  <description>Timeout on waiting response from server, in milliseconds.
+  The client will send ping when the interval is passed without receiving bytes,
+  if ipc.client.ping is set to true.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.rpc-timeout.ms</name>
+  <value>0</value>
+  <description>Timeout on waiting response from server, in milliseconds.
+  Currently this timeout works only when ipc.client.ping is set to true
+  because it uses the same facilities with IPC ping.
+  The timeout overrides the ipc.ping.interval and client will throw exception
+  instead of sending ping when the interval is passed.
+  </description>
+</property>
+
+<property>
+  <name>ipc.server.listen.queue.size</name>
+  <value>128</value>
+  <description>Indicates the length of the listen queue for servers accepting
+               client connections.
+  </description>
+</property>
+
+<property>
+  <name>ipc.maximum.data.length</name>
+  <value>67108864</value>
+  <description>This indicates the maximum IPC message length (bytes) that can be
+    accepted by the server. Messages larger than this value are rejected by
+    server immediately. This setting should rarely need to be changed. It merits
+    investigating whether the cause of long RPC messages can be fixed instead,
+    e.g. by splitting into smaller messages.
+  </description>
+</property>
+
+<!-- Proxy Configuration -->
+
+<property>
+  <name>hadoop.security.impersonation.provider.class</name>
+  <value></value>
+  <description>A class which implements ImpersonationProvider interface, used to 
+       authorize whether one user can impersonate a specific user. 
+       If not specified, the DefaultImpersonationProvider will be used. 
+       If a class is specified, then that class will be used to determine 
+       the impersonation capability.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.socket.factory.class.default</name>
+  <value>org.apache.hadoop.net.StandardSocketFactory</value>
+  <description> Default SocketFactory to use. This parameter is expected to be
+    formatted as "package.FactoryClassName".
+  </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
+  <value></value>
+  <description> SocketFactory to use to connect to a DFS. If null or empty, use
+    hadoop.rpc.socket.class.default. This socket factory is also used by
+    DFSClient to create sockets to DataNodes.
+  </description>
+</property>
+
+
+
+<property>
+  <name>hadoop.socks.server</name>
+  <value></value>
+  <description> Address (host:port) of the SOCKS server to be used by the
+    SocksSocketFactory.
+  </description>
+</property>
+
+<!-- Topology Configuration -->
+<property>
+  <name>net.topology.node.switch.mapping.impl</name>
+  <value>org.apache.hadoop.net.ScriptBasedMapping</value>
+  <description> The default implementation of the DNSToSwitchMapping. It
+    invokes a script specified in net.topology.script.file.name to resolve
+    node names. If the value for net.topology.script.file.name is not set, the
+    default value of DEFAULT_RACK is returned for all node names.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.impl</name>
+  <value>org.apache.hadoop.net.NetworkTopology</value>
+  <description> The default implementation of NetworkTopology which is classic three layer one.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.script.file.name</name>
+  <value></value>
+  <description> The script name that should be invoked to resolve DNS names to
+    NetworkTopology names. Example: the script would take host.foo.bar as an
+    argument, and return /rack1 as the output.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.script.number.args</name>
+  <value>100</value>
+  <description> The max number of args that the script configured with 
+    net.topology.script.file.name should be run with. Each arg is an
+    IP address.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.table.file.name</name>
+  <value></value>
+  <description> The file name for a topology file, which is used when the
+    net.topology.node.switch.mapping.impl property is set to
+    org.apache.hadoop.net.TableMapping. The file format is a two column text
+    file, with columns separated by whitespace. The first column is a DNS or
+    IP address and the second column specifies the rack where the address maps.
+    If no entry corresponding to a host in the cluster is found, then 
+    /default-rack is assumed.
+  </description>
+</property>
+
+<!-- Local file system -->
+<property>
+  <name>file.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>file.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  file.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>file.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>file.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>file.replication</name>
+  <value>1</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- s3 File System -->
+
+<property>
+  <name>s3.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>s3.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  s3.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>s3.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>s3.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>s3.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- s3native File System -->
+
+<property>
+  <name>s3native.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>s3native.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  s3native.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>s3native.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>s3native.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>s3native.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- FTP file system -->
+<property>
+  <name>ftp.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>ftp.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  ftp.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>ftp.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>ftp.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>ftp.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- Tfile -->
+
+<property>
+  <name>tfile.io.chunk.size</name>
+  <value>1048576</value>
+  <description>
+    Value chunk size in bytes. Default  to
+    1MB. Values of the length less than the chunk size is
+    guaranteed to have known value length in read time (See also
+    TFile.Reader.Scanner.Entry.isValueLengthKnown()).
+  </description>
+</property>
+
+<property>
+  <name>tfile.fs.output.buffer.size</name>
+  <value>262144</value>
+  <description>
+    Buffer size used for FSDataOutputStream in bytes.
+  </description>
+</property>
+
+<property>
+  <name>tfile.fs.input.buffer.size</name>
+  <value>262144</value>
+  <description>
+    Buffer size used for FSDataInputStream in bytes.
+  </description>
+</property>
+
+<!-- HTTP web-consoles Authentication -->
+
+<property>
+  <name>hadoop.http.authentication.type</name>
+  <value>simple</value>
+  <description>
+    Defines authentication used for Oozie HTTP endpoint.
+    Supported values are: simple | kerberos | #AUTHENTICATION_HANDLER_CLASSNAME#
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.token.validity</name>
+  <value>36000</value>
+  <description>
+    Indicates how long (in seconds) an authentication token is valid before it has
+    to be renewed.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.signature.secret.file</name>
+  <value>${user.home}/hadoop-http-auth-signature-secret</value>
+  <description>
+    The signature secret for signing the authentication tokens.
+    The same secret should be used for JT/NN/DN/TT configurations.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.cookie.domain</name>
+  <value></value>
+  <description>
+    The domain to use for the HTTP cookie that stores the authentication token.
+    In order to authentiation to work correctly across all Hadoop nodes web-consoles
+    the domain must be correctly set.
+    IMPORTANT: when using IP addresses, browsers ignore cookies with domain settings.
+    For this setting to work properly all nodes in the cluster must be configured
+    to generate URLs with hostname.domain names on it.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.simple.anonymous.allowed</name>
+  <value>true</value>
+  <description>
+    Indicates if anonymous requests are allowed when using 'simple' authentication.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.kerberos.principal</name>
+  <value>HTTP/_HOST@LOCALHOST</value>
+  <description>
+    Indicates the Kerberos principal to be used for HTTP endpoint.
+    The principal MUST start with 'HTTP/' as per Kerberos HTTP SPNEGO specification.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.kerberos.keytab</name>
+  <value>${user.home}/hadoop.keytab</value>
+  <description>
+    Location of the keytab file with the credentials for the principal.
+    Referring to the same keytab file Oozie uses for its Kerberos credentials for Hadoop.
+  </description>
+</property>
+
+<!-- HTTP CORS support -->
+<property>
+  <description>Enable/disable the cross-origin (CORS) filter.</description>
+  <name>hadoop.http.cross-origin.enabled</name>
+  <value>false</value>
+</property>
+
+<property>
+  <description>Comma separated list of origins that are allowed for web
+    services needing cross-origin (CORS) support. Wildcards (*) and patterns
+    allowed</description>
+  <name>hadoop.http.cross-origin.allowed-origins</name>
+  <value>*</value>
+</property>
+
+<property>
+  <description>Comma separated list of methods that are allowed for web
+    services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.allowed-methods</name>
+  <value>GET,POST,HEAD</value>
+</property>
+
+<property>
+  <description>Comma separated list of headers that are allowed for web
+    services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.allowed-headers</name>
+  <value>X-Requested-With,Content-Type,Accept,Origin</value>
+</property>
+
+<property>
+  <description>The number of seconds a pre-flighted request can be cached
+    for web services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.max-age</name>
+  <value>1800</value>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.methods</name>
+  <value></value>
+  <description>
+    List of fencing methods to use for service fencing. May contain
+    builtin methods (eg shell and sshfence) or user-defined method.
+  </description>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.ssh.connect-timeout</name>
+  <value>30000</value>
+  <description>
+    SSH connection timeout, in milliseconds, to use with the builtin
+    sshfence fencer.
+  </description>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.ssh.private-key-files</name>
+  <value></value>
+  <description>
+    The SSH private key files to use with the builtin sshfence fencer.
+  </description>
+</property>
+
+
+<!-- Static Web User Filter properties. -->
+<property>
+  <description>
+    The user name to filter as, on static web filters
+    while rendering content. An example use is the HDFS
+    web UI (user to be used for browsing files).
+  </description>
+  <name>hadoop.http.staticuser.user</name>
+  <value>dr.who</value>
+</property>
+
+<property>
+  <name>ha.zookeeper.quorum</name>
+  <description>
+    A list of ZooKeeper server addresses, separated by commas, that are
+    to be used by the ZKFailoverController in automatic failover.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.session-timeout.ms</name>
+  <value>5000</value>
+  <description>
+    The session timeout to use when the ZKFC connects to ZooKeeper.
+    Setting this value to a lower value implies that server crashes
+    will be detected more quickly, but risks triggering failover too
+    aggressively in the case of a transient error or network blip.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.parent-znode</name>
+  <value>/hadoop-ha</value>
+  <description>
+    The ZooKeeper znode under which the ZK failover controller stores
+    its information. Note that the nameservice ID is automatically
+    appended to this znode, so it is not normally necessary to
+    configure this, even in a federated environment.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.acl</name>
+  <value>world:anyone:rwcda</value>
+  <description>
+    A comma-separated list of ZooKeeper ACLs to apply to the znodes
+    used by automatic failover. These ACLs are specified in the same
+    format as used by the ZooKeeper CLI.
+
+    If the ACL itself contains secrets, you may instead specify a
+    path to a file, prefixed with the '@' symbol, and the value of
+    this configuration will be loaded from within.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.auth</name>
+  <value></value>
+  <description>
+    A comma-separated list of ZooKeeper authentications to add when
+    connecting to ZooKeeper. These are specified in the same format
+    as used by the &quot;addauth&quot; command in the ZK CLI. It is
+    important that the authentications specified here are sufficient
+    to access znodes with the ACL specified in ha.zookeeper.acl.
+
+    If the auths contain secrets, you may instead specify a
+    path to a file, prefixed with the '@' symbol, and the value of
+    this configuration will be loaded from within.
+  </description>
+</property>
+
+<!-- SSLFactory configuration -->
+
+<property>
+  <name>hadoop.ssl.keystores.factory.class</name>
+  <value>org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory</value>
+  <description>
+    The keystores factory to use for retrieving certificates.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.require.client.cert</name>
+  <value>false</value>
+  <description>Whether client certificates are required</description>
+</property>
+
+<property>
+  <name>hadoop.ssl.hostname.verifier</name>
+  <value>DEFAULT</value>
+  <description>
+    The hostname verifier to provide for HttpsURLConnections.
+    Valid values are: DEFAULT, STRICT, STRICT_I6, DEFAULT_AND_LOCALHOST and
+    ALLOW_ALL
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.server.conf</name>
+  <value>ssl-server.xml</value>
+  <description>
+    Resource file from which ssl server keystore information will be extracted.
+    This file is looked up in the classpath, typically it should be in Hadoop
+    conf/ directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.client.conf</name>
+  <value>ssl-client.xml</value>
+  <description>
+    Resource file from which ssl client keystore information will be extracted
+    This file is looked up in the classpath, typically it should be in Hadoop
+    conf/ directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.enabled</name>
+  <value>false</value>
+  <description>
+    Deprecated. Use dfs.http.policy and yarn.http.policy instead.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.enabled.protocols</name>
+  <value>TLSv1</value>
+  <description>
+    Protocols supported by the ssl.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.jetty.logs.serve.aliases</name>
+  <value>true</value>
+  <description>
+    Enable/Disable aliases serving from jetty
+  </description>
+</property>
+
+<property>
+  <name>fs.permissions.umask-mode</name>
+  <value>022</value>
+  <description>
+    The umask used when creating files and directories.
+    Can be in octal or in symbolic. Examples are:
+    "022" (octal for u=rwx,g=r-x,o=r-x in symbolic),
+    or "u=rwx,g=rwx,o=" (symbolic for 007 in octal).
+  </description>
+</property>
+
+<!-- ha properties -->
+
+<property>
+  <name>ha.health-monitor.connect-retry-interval.ms</name>
+  <value>1000</value>
+  <description>
+    How often to retry connecting to the service.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.check-interval.ms</name>
+  <value>1000</value>
+  <description>
+    How often to check the service.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.sleep-after-disconnect.ms</name>
+  <value>1000</value>
+  <description>
+    How long to sleep after an unexpected RPC error.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.rpc-timeout.ms</name>
+  <value>45000</value>
+  <description>
+    Timeout for the actual monitorHealth() calls.
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.new-active.rpc-timeout.ms</name>
+  <value>60000</value>
+  <description>
+    Timeout that the FC waits for the new active to become active
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.graceful-fence.rpc-timeout.ms</name>
+  <value>5000</value>
+  <description>
+    Timeout that the FC waits for the old active to go to standby
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.graceful-fence.connection.retries</name>
+  <value>1</value>
+  <description>
+    FC connection retries for graceful fencing
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.cli-check.rpc-timeout.ms</name>
+  <value>20000</value>
+  <description>
+    Timeout that the CLI (manual) FC waits for monitorHealth, getServiceState
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.fallback-to-simple-auth-allowed</name>
+  <value>false</value>
+  <description>
+    When a client is configured to attempt a secure connection, but attempts to
+    connect to an insecure server, that server may instruct the client to
+    switch to SASL SIMPLE (unsecure) authentication. This setting controls
+    whether or not the client will accept this instruction from the server.
+    When false (the default), the client will not allow the fallback to SIMPLE
+    authentication, and will abort the connection.
+  </description>
+</property>
+
+<property>
+  <name>fs.client.resolve.remote.symlinks</name>
+  <value>true</value>
+  <description>
+      Whether to resolve symlinks when accessing a remote Hadoop filesystem.
+      Setting this to false causes an exception to be thrown upon encountering
+      a symlink. This setting does not apply to local filesystems, which
+      automatically resolve local symlinks.
+  </description>
+</property>
+
+<property>
+  <name>nfs.exports.allowed.hosts</name>
+  <value>* rw</value>
+  <description>
+    By default, the export can be mounted by any client. The value string 
+    contains machine name and access privilege, separated by whitespace 
+    characters. The machine name format can be a single host, a Java regular 
+    expression, or an IPv4 address. The access privilege uses rw or ro to 
+    specify read/write or read-only access of the machines to exports. If the 
+    access privilege is not provided, the default is read-only. Entries are separated by ";".
+    For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
+    Only the NFS gateway needs to restart after this property is updated. 
+  </description>
+</property>
+
+<property>
+  <name>hadoop.user.group.static.mapping.overrides</name>
+  <value>dr.who=;</value>
+  <description>
+    Static mapping of user to groups. This will override the groups if
+    available in the system for the specified user. In otherwords, groups
+    look-up will not happen for these users, instead groups mapped in this
+    configuration will be used.
+    Mapping should be in this format.
+    user1=group1,group2;user2=;user3=group2;
+    Default, "dr.who=;" will consider "dr.who" as user without groups.
+  </description>
+</property>
+
+<property>
+  <name>rpc.metrics.quantile.enable</name>
+  <value>false</value>
+  <description>
+    Setting this property to true and rpc.metrics.percentiles.intervals
+    to a comma-separated list of the granularity in seconds, the
+    50/75/90/95/99th percentile latency for rpc queue/processing time in
+    milliseconds are added to rpc metrics.
+  </description>
+</property>
+
+<property>
+  <name>rpc.metrics.percentiles.intervals</name>
+  <value></value>
+  <description>
+    A comma-separated list of the granularity in seconds for the metrics which
+    describe the 50/75/90/95/99th percentile latency for rpc queue/processing
+    time. The metrics are outputted if rpc.metrics.quantile.enable is set to
+    true.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.codec.classes.EXAMPLECIPHERSUITE</name>
+  <value></value>
+  <description>
+    The prefix for a given crypto codec, contains a comma-separated
+    list of implementation classes for a given crypto codec (eg EXAMPLECIPHERSUITE).
+    The first implementation will be used if available, others are fallbacks.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.codec.classes.aes.ctr.nopadding</name>
+  <value>org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec,org.apache.hadoop.crypto.JceAesCtrCryptoCodec</value>
+  <description>
+    Comma-separated list of crypto codec implementations for AES/CTR/NoPadding. 
+    The first implementation will be used if available, others are fallbacks.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.cipher.suite</name>
+  <value>AES/CTR/NoPadding</value>
+  <description>
+    Cipher suite for crypto codec.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.jce.provider</name>
+  <value></value>
+  <description>
+    The JCE provider name used in CryptoCodec. 
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.buffer.size</name>
+  <value>8192</value>
+  <description>
+    The buffer size used by CryptoInputStream and CryptoOutputStream. 
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.java.secure.random.algorithm</name>
+  <value>SHA1PRNG</value>
+  <description>
+    The java secure random algorithm. 
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.secure.random.impl</name>
+  <value></value>
+  <description>
+    Implementation of secure random. 
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.random.device.file.path</name>
+  <value>/dev/urandom</value>
+  <description>
+    OS security random device file path.
+  </description>
+</property>
+
+<property>
+  <name>fs.har.impl.disable.cache</name>
+  <value>true</value>
+  <description>Don't cache 'har' filesystem instances.</description>
+</property>
+
+<!--- KMSClientProvider configurations -->
+<property>
+  <name>hadoop.security.kms.client.authentication.retry-count</name>
+  <value>1</value>
+  <description>
+    Number of time to retry connecting to KMS on authentication failure
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.size</name>
+  <value>500</value>
+  <description>
+    Size of the EncryptedKeyVersion cache Queue for each key
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.low-watermark</name>
+  <value>0.3f</value>
+  <description>
+    If size of the EncryptedKeyVersion cache Queue falls below the
+    low watermark, this cache queue will be scheduled for a refill
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.num.refill.threads</name>
+  <value>2</value>
+  <description>
+    Number of threads to use for refilling depleted EncryptedKeyVersion
+    cache Queues
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.expiry</name>
+  <value>43200000</value>
+  <description>
+    Cache expiry time for a Key, after which the cache Queue for this
+    key will be dropped. Default = 12hrs
+  </description>
+</property>
+
+<property>
+  <name>hadoop.htrace.spanreceiver.classes</name>
+  <value></value>
+  <description>
+    A comma separated list of the fully-qualified class name of classes 
+    implementing SpanReceiver. The tracing system works by collecting 
+    information in structs called 'Spans'. It is up to you to choose 
+    how you want to receive this information by implementing the 
+    SpanReceiver interface.
+  </description>
+</property>
+
+ <property>
+  <name>ipc.server.max.connections</name>
+  <value>0</value>
+  <description>The maximum number of concurrent connections a server is allowed
+    to accept. If this limit is exceeded, incoming connections will first fill
+    the listen queue and then may go to an OS-specific listen overflow queue. 
+    The client may fail or timeout, but the server can avoid running out of file
+    descriptors using this feature. 0 means no limit.
+  </description>
+</property>
+
+
+  <!-- YARN registry -->
+
+  <property>
+    <description>
+      Is the registry enabled in the YARN Resource Manager?
+
+      If true, the YARN RM will, as needed.
+      create the user and system paths, and purge
+      service records when containers, application attempts
+      and applications complete.
+
+      If false, the paths must be created by other means,
+      and no automatic cleanup of service records will take place.
+    </description>
+    <name>hadoop.registry.rm.enabled</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <description>
+      The root zookeeper node for the registry
+    </description>
+    <name>hadoop.registry.zk.root</name>
+    <value>/registry</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper session timeout in milliseconds
+    </description>
+    <name>hadoop.registry.zk.session.timeout.ms</name>
+    <value>60000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper connection timeout in milliseconds
+    </description>
+    <name>hadoop.registry.zk.connection.timeout.ms</name>
+    <value>15000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper connection retry count before failing
+    </description>
+    <name>hadoop.registry.zk.retry.times</name>
+    <value>5</value>
+  </property>
+
+  <property>
+    <description>
+    </description>
+    <name>hadoop.registry.zk.retry.interval.ms</name>
+    <value>1000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper retry limit in milliseconds, during
+      exponential backoff.
+
+      This places a limit even
+      if the retry times and interval limit, combined
+      with the backoff policy, result in a long retry
+      period
+    </description>
+    <name>hadoop.registry.zk.retry.ceiling.ms</name>
+    <value>60000</value>
+  </property>
+
+  <property>
+    <description>
+      List of hostname:port pairs defining the
+      zookeeper quorum binding for the registry
+    </description>
+    <name>hadoop.registry.zk.quorum</name>
+    <value>localhost:2181</value>
+  </property>
+
+  <property>
+    <description>
+      Key to set if the registry is secure. Turning it on
+      changes the permissions policy from "open access"
+      to restrictions on kerberos with the option of
+      a user adding one or more auth key pairs down their
+      own tree.
+    </description>
+    <name>hadoop.registry.secure</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <description>
+      A comma separated list of Zookeeper ACL identifiers with
+      system access to the registry in a secure cluster.
+
+      These are given full access to all entries.
+
+      If there is an "@" at the end of a SASL entry it
+      instructs the registry client to append the default kerberos domain.
+    </description>
+    <name>hadoop.registry.system.acls</name>
+    <value>sasl:yarn@, sasl:mapred@, sasl:hdfs@</value>
+  </property>
+
+  <property>
+    <description>
+      The kerberos realm: used to set the realm of
+      system principals which do not declare their realm,
+      and any other accounts that need the value.
+
+      If empty, the default realm of the running process
+      is used.
+
+      If neither are known and the realm is needed, then the registry
+      service/client will fail.
+    </description>
+    <name>hadoop.registry.kerberos.realm</name>
+    <value></value>
+  </property>
+
+  <property>
+    <description>
+      Key to define the JAAS context. Used in secure
+      mode
+    </description>
+    <name>hadoop.registry.jaas.context</name>
+    <value>Client</value>
+  </property>
+
+</configuration>
diff --git a/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-site.xml b/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-site.xml
index 85c1f0d76f4..bddcdc82fd3 100644
--- a/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-site.xml
+++ b/flink-filesystems/flink-s3-fs-presto/src/test/resources/core-site.xml
@@ -1,1978 +1,31 @@
 <?xml version="1.0"?>
-<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
-
 <!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
 
        http://www.apache.org/licenses/LICENSE-2.0
 
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 
-<!-- Do not modify this file directly.  Instead, copy entries that you -->
-<!-- wish to modify from this file into core-site.xml and change them -->
-<!-- there.  If core-site.xml does not already exist, create it.      -->
-
-<configuration>
-
-<!--- global properties -->
-
-<property>
-  <name>hadoop.common.configuration.version</name>
-  <value>0.23.0</value>
-  <description>version of this configuration file</description>
-</property>
-
-<property>
-  <name>hadoop.tmp.dir</name>
-  <value>/tmp/hadoop-${user.name}</value>
-  <description>A base for other temporary directories.</description>
-</property>
-
-<property>
-  <name>io.native.lib.available</name>
-  <value>true</value>
-  <description>Controls whether to use native libraries for bz2 and zlib
-    compression codecs or not. The property does not control any other native
-    libraries.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.filter.initializers</name>
-  <value>org.apache.hadoop.http.lib.StaticUserWebFilter</value>
-  <description>A comma separated list of class names. Each class in the list 
-  must extend org.apache.hadoop.http.FilterInitializer. The corresponding 
-  Filter will be initialized. Then, the Filter will be applied to all user 
-  facing jsp and servlet web pages.  The ordering of the list defines the 
-  ordering of the filters.</description>
-</property>
-
-<!--- security properties -->
-
-<property>
-  <name>hadoop.security.authorization</name>
-  <value>false</value>
-  <description>Is service-level authorization enabled?</description>
-</property>
-
-<property>
-  <name>hadoop.security.instrumentation.requires.admin</name>
-  <value>false</value>
-  <description>
-    Indicates if administrator ACLs are required to access
-    instrumentation servlets (JMX, METRICS, CONF, STACKS).
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.authentication</name>
-  <value>simple</value>
-  <description>Possible values are simple (no authentication), and kerberos
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping</name>
-  <value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
-  <description>
-    Class for user to group mapping (get groups for a given user) for ACL. 
-    The default implementation,
-    org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback, 
-    will determine if the Java Native Interface (JNI) is available. If JNI is 
-    available the implementation will use the API within hadoop to resolve a 
-    list of groups for a user. If JNI is not available then the shell 
-    implementation, ShellBasedUnixGroupsMapping, is used.  This implementation 
-    shells out to the Linux/Unix environment with the 
-    <code>bash -c groups</code> command to resolve a list of groups for a user.
-  </description>
-</property>
-
-<!-- 
-=== Multiple group mapping providers configuration sample === 
-  This sample illustrates a typical use case for CompositeGroupsMapping where
-Hadoop authentication uses MIT Kerberos which trusts an AD realm. In this case, service
-principals such as hdfs, mapred, hbase, hive, oozie and etc can be placed in In MIT Kerberos,
-but end users are just from the trusted AD. For the service principals, ShellBasedUnixGroupsMapping
-provider can be used to query their groups for efficiency, and for end users, LdapGroupsMapping 
-provider can be used. This avoids to add group entries in AD for service principals when only using 
-LdapGroupsMapping provider.
-  In case multiple ADs are involved and trusted by the MIT Kerberos in this use case, LdapGroupsMapping
-provider can be used more times with different AD specific configurations. This sample also shows how
-to do that. Here are the necessary configurations.
-
-<property>
-  <name>hadoop.security.group.mapping</name>
-  <value>org.apache.hadoop.security.CompositeGroupsMapping</value>
-  <description>
-    Class for user to group mapping (get groups for a given user) for ACL, which 
-    makes use of other multiple providers to provide the service.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.providers</name>
-  <value>shell4services,ad4usersX,ad4usersY</value>
-  <description>
-    Comma separated of names of other providers to provide user to group mapping. 
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.providers.combined</name>
-  <value>true</value>
-  <description>
-    true or false to indicate whether groups from the providers are combined or not. The default value is true
-    If true, then all the providers will be tried to get groups and all the groups are combined to return as
-    the final results. Otherwise, providers are tried one by one in the configured list order, and if any
-    groups are retrieved from any provider, then the groups will be returned without trying the left ones.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.provider.shell4services</name>
-  <value>org.apache.hadoop.security.ShellBasedUnixGroupsMapping</value>
-  <description>
-    Class for group mapping provider named by 'shell4services'. The name can then be referenced 
-    by hadoop.security.group.mapping.providers property.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.provider.ad4usersX</name>
-  <value>org.apache.hadoop.security.LdapGroupsMapping</value>
-  <description>
-    Class for group mapping provider named by 'ad4usersX'. The name can then be referenced 
-    by hadoop.security.group.mapping.providers property.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.provider.ad4usersY</name>
-  <value>org.apache.hadoop.security.LdapGroupsMapping</value>
-  <description>
-    Class for group mapping provider named by 'ad4usersY'. The name can then be referenced 
-    by hadoop.security.group.mapping.providers property.
-  </description>
-</property>
-
-<property>
-<name>hadoop.security.group.mapping.provider.ad4usersX.ldap.url</name>
-<value>ldap://ad-host-for-users-X:389</value>
-  <description>
-    ldap url for the provider named by 'ad4usersX'. Note this property comes from 
-    'hadoop.security.group.mapping.ldap.url'.
-  </description>
-</property>
-
-<property>
-<name>hadoop.security.group.mapping.provider.ad4usersY.ldap.url</name>
-<value>ldap://ad-host-for-users-Y:389</value>
-  <description>
-    ldap url for the provider named by 'ad4usersY'. Note this property comes from 
-    'hadoop.security.group.mapping.ldap.url'.
-  </description>
-</property>
-
-You also need to configure other properties like
-  hadoop.security.group.mapping.ldap.bind.password.file and etc.
-for ldap providers in the same way as above does.
-
+<!--
+A configuration as it may accidentally be in the classpath when Hadoop is
+in the classpath. Used for tests checking that the presence of such a config
+does not pollute the settings.
 -->
- 
-<property>
-  <name>hadoop.security.groups.cache.secs</name>
-  <value>300</value>
-  <description>
-    This is the config controlling the validity of the entries in the cache
-    containing the user->group mapping. When this duration has expired,
-    then the implementation of the group mapping provider is invoked to get
-    the groups of the user and then cached back.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.negative-cache.secs</name>
-  <value>30</value>
-  <description>
-    Expiration time for entries in the the negative user-to-group mapping
-    caching, in seconds. This is useful when invalid users are retrying
-    frequently. It is suggested to set a small value for this expiration, since
-    a transient error in group lookup could temporarily lock out a legitimate
-    user.
-
-    Set this to zero or negative value to disable negative user-to-group caching.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.warn.after.ms</name>
-  <value>5000</value>
-  <description>
-    If looking up a single user to group takes longer than this amount of
-    milliseconds, we will log a warning message.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.url</name>
-  <value></value>
-  <description>
-    The URL of the LDAP server to use for resolving user groups when using
-    the LdapGroupsMapping user to group mapping.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl</name>
-  <value>false</value>
-  <description>
-    Whether or not to use SSL when connecting to the LDAP server.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl.keystore</name>
-  <value></value>
-  <description>
-    File path to the SSL keystore that contains the SSL certificate required
-    by the LDAP server.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl.keystore.password.file</name>
-  <value></value>
-  <description>
-    The path to a file containing the password of the LDAP SSL keystore.
-
-    IMPORTANT: This file should be readable only by the Unix user running
-    the daemons.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.bind.user</name>
-  <value></value>
-  <description>
-    The distinguished name of the user to bind as when connecting to the LDAP
-    server. This may be left blank if the LDAP server supports anonymous binds.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.bind.password.file</name>
-  <value></value>
-  <description>
-    The path to a file containing the password of the bind user.
-
-    IMPORTANT: This file should be readable only by the Unix user running
-    the daemons.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.base</name>
-  <value></value>
-  <description>
-    The search base for the LDAP connection. This is a distinguished name,
-    and will typically be the root of the LDAP directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.filter.user</name>
-  <value>(&amp;(objectClass=user)(sAMAccountName={0}))</value>
-  <description>
-    An additional filter to use when searching for LDAP users. The default will
-    usually be appropriate for Active Directory installations. If connecting to
-    an LDAP server with a non-AD schema, this should be replaced with
-    (&amp;(objectClass=inetOrgPerson)(uid={0}). {0} is a special string used to
-    denote where the username fits into the filter.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.filter.group</name>
-  <value>(objectClass=group)</value>
-  <description>
-    An additional filter to use when searching for LDAP groups. This should be
-    changed when resolving groups against a non-Active Directory installation.
-    posixGroups are currently not a supported group class.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.attr.member</name>
-  <value>member</value>
-  <description>
-    The attribute of the group object that identifies the users that are
-    members of the group. The default will usually be appropriate for
-    any LDAP installation.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.attr.group.name</name>
-  <value>cn</value>
-  <description>
-    The attribute of the group object that identifies the group name. The
-    default will usually be appropriate for all LDAP systems.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.directory.search.timeout</name>
-  <value>10000</value>
-  <description>
-    The attribute applied to the LDAP SearchControl properties to set a
-    maximum time limit when searching and awaiting a result.
-    Set to 0 if infinite wait period is desired.
-    Default is 10 seconds. Units in milliseconds.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.service.user.name.key</name>
-  <value></value>
-  <description>
-    For those cases where the same RPC protocol is implemented by multiple
-    servers, this configuration is required for specifying the principal
-    name to use for the service when the client wishes to make an RPC call.
-  </description>
-</property>
-
-
-<property>
-    <name>hadoop.security.uid.cache.secs</name>
-    <value>14400</value>
-    <description>
-        This is the config controlling the validity of the entries in the cache
-        containing the userId to userName and groupId to groupName used by
-        NativeIO getFstat().
-    </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.protection</name>
-  <value>authentication</value>
-  <description>A comma-separated list of protection values for secured sasl 
-      connections. Possible values are authentication, integrity and privacy.
-      authentication means authentication only and no integrity or privacy; 
-      integrity implies authentication and integrity are enabled; and privacy 
-      implies all of authentication, integrity and privacy are enabled.
-      hadoop.security.saslproperties.resolver.class can be used to override
-      the hadoop.rpc.protection for a connection at the server side.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.saslproperties.resolver.class</name>
-  <value></value>
-  <description>SaslPropertiesResolver used to resolve the QOP used for a 
-      connection. If not specified, the full set of values specified in 
-      hadoop.rpc.protection is used while determining the QOP used for the 
-      connection. If a class is specified, then the QOP values returned by 
-      the class will be used while determining the QOP used for the connection.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.work.around.non.threadsafe.getpwuid</name>
-  <value>false</value>
-  <description>Some operating systems or authentication modules are known to
-  have broken implementations of getpwuid_r and getpwgid_r, such that these
-  calls are not thread-safe. Symptoms of this problem include JVM crashes
-  with a stack trace inside these functions. If your system exhibits this
-  issue, enable this configuration parameter to include a lock around the
-  calls as a workaround.
-
-  An incomplete list of some systems known to have this issue is available
-  at http://wiki.apache.org/hadoop/KnownBrokenPwuidImplementations
-  </description>
-</property>
-
-<property>
-  <name>hadoop.kerberos.kinit.command</name>
-  <value>kinit</value>
-  <description>Used to periodically renew Kerberos credentials when provided
-  to Hadoop. The default setting assumes that kinit is in the PATH of users
-  running the Hadoop client. Change this to the absolute path to kinit if this
-  is not the case.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.auth_to_local</name>
-  <value></value>
-  <description>Maps kerberos principals to local user names</description>
-</property>
-
-<!-- i/o properties -->
-<property>
-  <name>io.file.buffer.size</name>
-  <value>4096</value>
-  <description>The size of buffer for use in sequence files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-  
-<property>
-  <name>io.bytes.per.checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  io.file.buffer.size.</description>
-</property>
-
-<property>
-  <name>io.skip.checksum.errors</name>
-  <value>false</value>
-  <description>If true, when a checksum error is encountered while
-  reading a sequence file, entries are skipped, instead of throwing an
-  exception.</description>
-</property>
-
-<property>
-  <name>io.compression.codecs</name>
-  <value></value>
-  <description>A comma-separated list of the compression codec classes that can
-  be used for compression/decompression. In addition to any classes specified
-  with this property (which take precedence), codec classes on the classpath
-  are discovered using a Java ServiceLoader.</description>
-</property>
-
-<property>
-  <name>io.compression.codec.bzip2.library</name>
-  <value>system-native</value>
-  <description>The native-code library to be used for compression and
-  decompression by the bzip2 codec.  This library could be specified
-  either by by name or the full pathname.  In the former case, the
-  library is located by the dynamic linker, usually searching the
-  directories specified in the environment variable LD_LIBRARY_PATH.
-  
-  The value of "system-native" indicates that the default system
-  library should be used.  To indicate that the algorithm should
-  operate entirely in Java, specify "java-builtin".</description>
-</property>
-
-<property>
-  <name>io.serializations</name>
-  <value>org.apache.hadoop.io.serializer.WritableSerialization,org.apache.hadoop.io.serializer.avro.AvroSpecificSerialization,org.apache.hadoop.io.serializer.avro.AvroReflectSerialization</value>
-  <description>A list of serialization classes that can be used for
-  obtaining serializers and deserializers.</description>
-</property>
-
-<property>
-  <name>io.seqfile.local.dir</name>
-  <value>${hadoop.tmp.dir}/io/local</value>
-  <description>The local directory where sequence file stores intermediate
-  data files during merge.  May be a comma-separated list of
-  directories on different devices in order to spread disk i/o.
-  Directories that do not exist are ignored.
-  </description>
-</property>
-
-<property>
-  <name>io.map.index.skip</name>
-  <value>0</value>
-  <description>Number of index entries to skip between each entry.
-  Zero by default. Setting this to values larger than zero can
-  facilitate opening large MapFiles using less memory.</description>
-</property>
-
-<property>
-  <name>io.map.index.interval</name>
-  <value>128</value>
-  <description>
-    MapFile consist of two files - data file (tuples) and index file
-    (keys). For every io.map.index.interval records written in the
-    data file, an entry (record-key, data-file-position) is written
-    in the index file. This is to allow for doing binary search later
-    within the index file to look up records by their keys and get their
-    closest positions in the data file.
-  </description>
-</property>
-
-<!-- file system properties -->
-
-<property>
-  <name>fs.defaultFS</name>
-  <value>file:///</value>
-  <description>The name of the default file system.  A URI whose
-  scheme and authority determine the FileSystem implementation.  The
-  uri's scheme determines the config property (fs.SCHEME.impl) naming
-  the FileSystem implementation class.  The uri's authority is used to
-  determine the host, port, etc. for a filesystem.</description>
-</property>
-
-<property>
-  <name>fs.default.name</name>
-  <value>file:///</value>
-  <description>Deprecated. Use (fs.defaultFS) property
-  instead</description>
-</property>
-
-<property>
-  <name>fs.trash.interval</name>
-  <value>0</value>
-  <description>Number of minutes after which the checkpoint
-  gets deleted.  If zero, the trash feature is disabled.
-  This option may be configured both on the server and the
-  client. If trash is disabled server side then the client
-  side configuration is checked. If trash is enabled on the
-  server side then the value configured on the server is
-  used and the client configuration value is ignored.
-  </description>
-</property>
-
-<property>
-  <name>fs.trash.checkpoint.interval</name>
-  <value>0</value>
-  <description>Number of minutes between trash checkpoints.
-  Should be smaller or equal to fs.trash.interval. If zero,
-  the value is set to the value of fs.trash.interval.
-  Every time the checkpointer runs it creates a new checkpoint 
-  out of current and removes checkpoints created more than 
-  fs.trash.interval minutes ago.
-  </description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.file.impl</name>
-  <value>org.apache.hadoop.fs.local.LocalFs</value>
-  <description>The AbstractFileSystem for file: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.har.impl</name>
-  <value>org.apache.hadoop.fs.HarFs</value>
-  <description>The AbstractFileSystem for har: uris.</description>
-</property> 
-
-<property>
-  <name>fs.AbstractFileSystem.hdfs.impl</name>
-  <value>org.apache.hadoop.fs.Hdfs</value>
-  <description>The FileSystem for hdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.viewfs.impl</name>
-  <value>org.apache.hadoop.fs.viewfs.ViewFs</value>
-  <description>The AbstractFileSystem for view file system for viewfs: uris
-  (ie client side mount table:).</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.ftp.impl</name>
-  <value>org.apache.hadoop.fs.ftp.FtpFs</value>
-  <description>The FileSystem for Ftp: uris.</description>
-</property>
-
-<property>
-  <name>fs.ftp.host</name>
-  <value>0.0.0.0</value>
-  <description>FTP filesystem connects to this server</description>
-</property>
-
-<property>
-  <name>fs.ftp.host.port</name>
-  <value>21</value>
-  <description>
-    FTP filesystem connects to fs.ftp.host on this port
-  </description>
-</property>
-
-<property>
-  <name>fs.df.interval</name>
-  <value>60000</value>
-  <description>Disk usage statistics refresh interval in msec.</description>
-</property>
-
-<property>
-  <name>fs.du.interval</name>
-  <value>600000</value>
-  <description>File space usage statistics refresh interval in msec.</description>
-</property>
-
-<property>
-  <name>fs.s3.block.size</name>
-  <value>67108864</value>
-  <description>Block size to use when writing files to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3.buffer.dir</name>
-  <value>${hadoop.tmp.dir}/s3</value>
-  <description>Determines where on the local filesystem the S3 filesystem
-  should store files before sending them to S3
-  (or after retrieving them from S3).
-  </description>
-</property>
-
-<property>
-  <name>fs.s3.maxRetries</name>
-  <value>4</value>
-  <description>The maximum number of retries for reading or writing files to S3, 
-  before we signal failure to the application.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3.sleepTimeSeconds</name>
-  <value>10</value>
-  <description>The number of seconds to sleep between each S3 retry.
-  </description>
-</property>
-
-<property>
-  <name>fs.swift.impl</name>
-  <value>org.apache.hadoop.fs.swift.snative.SwiftNativeFileSystem</value>
-  <description>The implementation class of the OpenStack Swift Filesystem</description>
-</property>
-
-<property>
-  <name>fs.automatic.close</name>
-  <value>true</value>
-  <description>By default, FileSystem instances are automatically closed at program
-  exit using a JVM shutdown hook. Setting this property to false disables this
-  behavior. This is an advanced option that should only be used by server applications
-  requiring a more carefully orchestrated shutdown sequence.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.block.size</name>
-  <value>67108864</value>
-  <description>Block size to use when reading files using the native S3
-  filesystem (s3n: URIs).</description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.uploads.enabled</name>
-  <value>false</value>
-  <description>Setting this property to true enables multiple uploads to
-  native S3 filesystem. When uploading a file, it is split into blocks
-  if the size is larger than fs.s3n.multipart.uploads.block.size.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.uploads.block.size</name>
-  <value>67108864</value>
-  <description>The block size for multipart uploads to native S3 filesystem.
-  Default size is 64MB.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.copy.block.size</name>
-  <value>5368709120</value>
-  <description>The block size for multipart copy in native S3 filesystem.
-  Default size is 5GB.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.server-side-encryption-algorithm</name>
-  <value></value>
-  <description>Specify a server-side encryption algorithm for S3.
-  The default is NULL, and the only other currently allowable value is AES256.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.awsAccessKeyId</name>
-  <description>AWS access key ID. Omit for Role-based authentication.</description>
-</property>
-
-<property>
-  <name>fs.s3a.awsSecretAccessKey</name>
-  <description>AWS secret key. Omit for Role-based authentication.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.maximum</name>
-  <value>15</value>
-  <description>Controls the maximum number of simultaneous connections to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.ssl.enabled</name>
-  <value>true</value>
-  <description>Enables or disables SSL connections to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3a.endpoint</name>
-  <description>AWS S3 endpoint to connect to. An up-to-date list is
-    provided in the AWS Documentation: regions and endpoints. Without this
-    property, the standard region (s3.amazonaws.com) is assumed.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.host</name>
-  <description>Hostname of the (optional) proxy server for S3 connections.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.port</name>
-  <description>Proxy server port. If this property is not set
-    but fs.s3a.proxy.host is, port 80 or 443 is assumed (consistent with
-    the value of fs.s3a.connection.ssl.enabled).</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.username</name>
-  <description>Username for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.password</name>
-  <description>Password for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.domain</name>
-  <description>Domain for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.workstation</name>
-  <description>Workstation for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.attempts.maximum</name>
-  <value>10</value>
-  <description>How many times we should retry commands on transient errors.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.establish.timeout</name>
-  <value>5000</value>
-  <description>Socket connection setup timeout in milliseconds.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.timeout</name>
-  <value>50000</value>
-  <description>Socket connection timeout in milliseconds.</description>
-</property>
-
-<property>
-  <name>fs.s3a.paging.maximum</name>
-  <value>5000</value>
-  <description>How many keys to request from S3 when doing 
-     directory listings at a time.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.max</name>
-  <value>256</value>
-  <description> Maximum number of concurrent active (part)uploads,
-    which each use a thread from the threadpool.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.core</name>
-  <value>15</value>
-  <description>Number of core threads in the threadpool.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.keepalivetime</name>
-  <value>60</value>
-  <description>Number of seconds a thread can be idle before being
-    terminated.</description>
-</property>
-
-<property>
-  <name>fs.s3a.max.total.tasks</name>
-  <value>1000</value>
-  <description>Number of (part)uploads allowed to the queue before
-    blocking additional uploads.</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.size</name>
-  <value>104857600</value>
-  <description>How big (in bytes) to split upload or copy operations up into.</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.threshold</name>
-  <value>2147483647</value>
-  <description>Threshold before uploads or copies use parallel multipart operations.</description>
-</property>
-
-<property>
-  <name>fs.s3a.acl.default</name>
-  <description>Set a canned ACL for newly created and copied objects. Value may be private, 
-     public-read, public-read-write, authenticated-read, log-delivery-write, 
-     bucket-owner-read, or bucket-owner-full-control.</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.purge</name>
-  <value>false</value>
-  <description>True if you want to purge existing multipart uploads that may not have been
-     completed/aborted correctly</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.purge.age</name>
-  <value>86400</value>
-  <description>Minimum age in seconds of multipart uploads to purge</description>
-</property>
-
-<property>
-  <name>fs.s3a.buffer.dir</name>
-  <value>${hadoop.tmp.dir}/s3a</value>
-  <description>Comma separated list of directories that will be used to buffer file 
-    uploads to.</description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload</name>
-  <value>false</value>
-  <description>Upload directly from memory instead of buffering to
-    disk first. Memory usage and parallelism can be controlled as up to
-    fs.s3a.multipart.size memory is consumed for each (part)upload actively
-    uploading (fs.s3a.threads.max) or queueing (fs.s3a.max.total.tasks)</description>
-</property>
-
-  <property>
-  <name>fs.s3a.fast.buffer.size</name>
-  <value>1048576</value>
-  <description>Size of initial memory buffer in bytes allocated for an
-    upload. No effect if fs.s3a.fast.upload is false.</description>
-</property>
-
-<property>
-  <name>fs.s3a.impl</name>
-  <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
-  <description>The implementation class of the S3A Filesystem</description>
-</property>
-
-<property>
-  <name>io.seqfile.compress.blocksize</name>
-  <value>1000000</value>
-  <description>The minimum block size for compression in block compressed 
-          SequenceFiles.
-  </description>
-</property>
-
-<property>
-  <name>io.seqfile.lazydecompress</name>
-  <value>true</value>
-  <description>Should values of block-compressed SequenceFiles be decompressed
-          only when necessary.
-  </description>
-</property>
-
-<property>
-  <name>io.seqfile.sorter.recordlimit</name>
-  <value>1000000</value>
-  <description>The limit on number of records to be kept in memory in a spill 
-          in SequenceFiles.Sorter
-  </description>
-</property>
-
- <property>
-  <name>io.mapfile.bloom.size</name>
-  <value>1048576</value>
-  <description>The size of BloomFilter-s used in BloomMapFile. Each time this many
-  keys is appended the next BloomFilter will be created (inside a DynamicBloomFilter).
-  Larger values minimize the number of filters, which slightly increases the performance,
-  but may waste too much space if the total number of keys is usually much smaller
-  than this number.
-  </description>
-</property>
-
-<property>
-  <name>io.mapfile.bloom.error.rate</name>
-  <value>0.005</value>
-  <description>The rate of false positives in BloomFilter-s used in BloomMapFile.
-  As this value decreases, the size of BloomFilter-s increases exponentially. This
-  value is the probability of encountering false positives (default is 0.5%).
-  </description>
-</property>
-
-<property>
-  <name>hadoop.util.hash.type</name>
-  <value>murmur</value>
-  <description>The default implementation of Hash. Currently this can take one of the
-  two values: 'murmur' to select MurmurHash and 'jenkins' to select JenkinsHash.
-  </description>
-</property>
-
-
-<!-- ipc properties -->
-
-<property>
-  <name>ipc.client.idlethreshold</name>
-  <value>4000</value>
-  <description>Defines the threshold number of connections after which
-               connections will be inspected for idleness.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.kill.max</name>
-  <value>10</value>
-  <description>Defines the maximum number of clients to disconnect in one go.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connection.maxidletime</name>
-  <value>10000</value>
-  <description>The maximum time in msec after which a client will bring down the
-               connection to the server.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.max.retries</name>
-  <value>10</value>
-  <description>Indicates the number of retries a client will make to establish
-               a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.retry.interval</name>
-  <value>1000</value>
-  <description>Indicates the number of milliseconds a client will wait for
-    before retrying to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.timeout</name>
-  <value>20000</value>
-  <description>Indicates the number of milliseconds a client will wait for the 
-               socket to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.max.retries.on.timeouts</name>
-  <value>45</value>
-  <description>Indicates the number of retries a client will make on socket timeout
-               to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.ping</name>
-  <value>true</value>
-  <description>Send a ping to the server when timeout on reading the response,
-  if set to true. If no failure is detected, the client retries until at least
-  a byte is read.
-  </description>
-</property>
-
-<property>
-  <name>ipc.ping.interval</name>
-  <value>60000</value>
-  <description>Timeout on waiting response from server, in milliseconds.
-  The client will send ping when the interval is passed without receiving bytes,
-  if ipc.client.ping is set to true.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.rpc-timeout.ms</name>
-  <value>0</value>
-  <description>Timeout on waiting response from server, in milliseconds.
-  Currently this timeout works only when ipc.client.ping is set to true
-  because it uses the same facilities with IPC ping.
-  The timeout overrides the ipc.ping.interval and client will throw exception
-  instead of sending ping when the interval is passed.
-  </description>
-</property>
-
-<property>
-  <name>ipc.server.listen.queue.size</name>
-  <value>128</value>
-  <description>Indicates the length of the listen queue for servers accepting
-               client connections.
-  </description>
-</property>
-
-<property>
-  <name>ipc.maximum.data.length</name>
-  <value>67108864</value>
-  <description>This indicates the maximum IPC message length (bytes) that can be
-    accepted by the server. Messages larger than this value are rejected by
-    server immediately. This setting should rarely need to be changed. It merits
-    investigating whether the cause of long RPC messages can be fixed instead,
-    e.g. by splitting into smaller messages.
-  </description>
-</property>
-
-<!-- Proxy Configuration -->
-
-<property>
-  <name>hadoop.security.impersonation.provider.class</name>
-  <value></value>
-  <description>A class which implements ImpersonationProvider interface, used to 
-       authorize whether one user can impersonate a specific user. 
-       If not specified, the DefaultImpersonationProvider will be used. 
-       If a class is specified, then that class will be used to determine 
-       the impersonation capability.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.socket.factory.class.default</name>
-  <value>org.apache.hadoop.net.StandardSocketFactory</value>
-  <description> Default SocketFactory to use. This parameter is expected to be
-    formatted as "package.FactoryClassName".
-  </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
-  <value></value>
-  <description> SocketFactory to use to connect to a DFS. If null or empty, use
-    hadoop.rpc.socket.class.default. This socket factory is also used by
-    DFSClient to create sockets to DataNodes.
-  </description>
-</property>
-
-
-
-<property>
-  <name>hadoop.socks.server</name>
-  <value></value>
-  <description> Address (host:port) of the SOCKS server to be used by the
-    SocksSocketFactory.
-  </description>
-</property>
-
-<!-- Topology Configuration -->
-<property>
-  <name>net.topology.node.switch.mapping.impl</name>
-  <value>org.apache.hadoop.net.ScriptBasedMapping</value>
-  <description> The default implementation of the DNSToSwitchMapping. It
-    invokes a script specified in net.topology.script.file.name to resolve
-    node names. If the value for net.topology.script.file.name is not set, the
-    default value of DEFAULT_RACK is returned for all node names.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.impl</name>
-  <value>org.apache.hadoop.net.NetworkTopology</value>
-  <description> The default implementation of NetworkTopology which is classic three layer one.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.script.file.name</name>
-  <value></value>
-  <description> The script name that should be invoked to resolve DNS names to
-    NetworkTopology names. Example: the script would take host.foo.bar as an
-    argument, and return /rack1 as the output.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.script.number.args</name>
-  <value>100</value>
-  <description> The max number of args that the script configured with 
-    net.topology.script.file.name should be run with. Each arg is an
-    IP address.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.table.file.name</name>
-  <value></value>
-  <description> The file name for a topology file, which is used when the
-    net.topology.node.switch.mapping.impl property is set to
-    org.apache.hadoop.net.TableMapping. The file format is a two column text
-    file, with columns separated by whitespace. The first column is a DNS or
-    IP address and the second column specifies the rack where the address maps.
-    If no entry corresponding to a host in the cluster is found, then 
-    /default-rack is assumed.
-  </description>
-</property>
-
-<!-- Local file system -->
-<property>
-  <name>file.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>file.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  file.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>file.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>file.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>file.replication</name>
-  <value>1</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- s3 File System -->
-
-<property>
-  <name>s3.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>s3.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  s3.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>s3.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>s3.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>s3.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- s3native File System -->
-
-<property>
-  <name>s3native.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>s3native.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  s3native.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>s3native.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>s3native.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>s3native.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- FTP file system -->
-<property>
-  <name>ftp.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>ftp.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  ftp.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>ftp.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>ftp.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>ftp.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- Tfile -->
-
-<property>
-  <name>tfile.io.chunk.size</name>
-  <value>1048576</value>
-  <description>
-    Value chunk size in bytes. Default  to
-    1MB. Values of the length less than the chunk size is
-    guaranteed to have known value length in read time (See also
-    TFile.Reader.Scanner.Entry.isValueLengthKnown()).
-  </description>
-</property>
-
-<property>
-  <name>tfile.fs.output.buffer.size</name>
-  <value>262144</value>
-  <description>
-    Buffer size used for FSDataOutputStream in bytes.
-  </description>
-</property>
-
-<property>
-  <name>tfile.fs.input.buffer.size</name>
-  <value>262144</value>
-  <description>
-    Buffer size used for FSDataInputStream in bytes.
-  </description>
-</property>
-
-<!-- HTTP web-consoles Authentication -->
-
-<property>
-  <name>hadoop.http.authentication.type</name>
-  <value>simple</value>
-  <description>
-    Defines authentication used for Oozie HTTP endpoint.
-    Supported values are: simple | kerberos | #AUTHENTICATION_HANDLER_CLASSNAME#
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.token.validity</name>
-  <value>36000</value>
-  <description>
-    Indicates how long (in seconds) an authentication token is valid before it has
-    to be renewed.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.signature.secret.file</name>
-  <value>${user.home}/hadoop-http-auth-signature-secret</value>
-  <description>
-    The signature secret for signing the authentication tokens.
-    The same secret should be used for JT/NN/DN/TT configurations.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.cookie.domain</name>
-  <value></value>
-  <description>
-    The domain to use for the HTTP cookie that stores the authentication token.
-    In order to authentiation to work correctly across all Hadoop nodes web-consoles
-    the domain must be correctly set.
-    IMPORTANT: when using IP addresses, browsers ignore cookies with domain settings.
-    For this setting to work properly all nodes in the cluster must be configured
-    to generate URLs with hostname.domain names on it.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.simple.anonymous.allowed</name>
-  <value>true</value>
-  <description>
-    Indicates if anonymous requests are allowed when using 'simple' authentication.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.kerberos.principal</name>
-  <value>HTTP/_HOST@LOCALHOST</value>
-  <description>
-    Indicates the Kerberos principal to be used for HTTP endpoint.
-    The principal MUST start with 'HTTP/' as per Kerberos HTTP SPNEGO specification.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.kerberos.keytab</name>
-  <value>${user.home}/hadoop.keytab</value>
-  <description>
-    Location of the keytab file with the credentials for the principal.
-    Referring to the same keytab file Oozie uses for its Kerberos credentials for Hadoop.
-  </description>
-</property>
-
-<!-- HTTP CORS support -->
-<property>
-  <description>Enable/disable the cross-origin (CORS) filter.</description>
-  <name>hadoop.http.cross-origin.enabled</name>
-  <value>false</value>
-</property>
-
-<property>
-  <description>Comma separated list of origins that are allowed for web
-    services needing cross-origin (CORS) support. Wildcards (*) and patterns
-    allowed</description>
-  <name>hadoop.http.cross-origin.allowed-origins</name>
-  <value>*</value>
-</property>
-
-<property>
-  <description>Comma separated list of methods that are allowed for web
-    services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.allowed-methods</name>
-  <value>GET,POST,HEAD</value>
-</property>
-
-<property>
-  <description>Comma separated list of headers that are allowed for web
-    services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.allowed-headers</name>
-  <value>X-Requested-With,Content-Type,Accept,Origin</value>
-</property>
-
-<property>
-  <description>The number of seconds a pre-flighted request can be cached
-    for web services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.max-age</name>
-  <value>1800</value>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.methods</name>
-  <value></value>
-  <description>
-    List of fencing methods to use for service fencing. May contain
-    builtin methods (eg shell and sshfence) or user-defined method.
-  </description>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.ssh.connect-timeout</name>
-  <value>30000</value>
-  <description>
-    SSH connection timeout, in milliseconds, to use with the builtin
-    sshfence fencer.
-  </description>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.ssh.private-key-files</name>
-  <value></value>
-  <description>
-    The SSH private key files to use with the builtin sshfence fencer.
-  </description>
-</property>
-
-
-<!-- Static Web User Filter properties. -->
-<property>
-  <description>
-    The user name to filter as, on static web filters
-    while rendering content. An example use is the HDFS
-    web UI (user to be used for browsing files).
-  </description>
-  <name>hadoop.http.staticuser.user</name>
-  <value>dr.who</value>
-</property>
-
-<property>
-  <name>ha.zookeeper.quorum</name>
-  <description>
-    A list of ZooKeeper server addresses, separated by commas, that are
-    to be used by the ZKFailoverController in automatic failover.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.session-timeout.ms</name>
-  <value>5000</value>
-  <description>
-    The session timeout to use when the ZKFC connects to ZooKeeper.
-    Setting this value to a lower value implies that server crashes
-    will be detected more quickly, but risks triggering failover too
-    aggressively in the case of a transient error or network blip.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.parent-znode</name>
-  <value>/hadoop-ha</value>
-  <description>
-    The ZooKeeper znode under which the ZK failover controller stores
-    its information. Note that the nameservice ID is automatically
-    appended to this znode, so it is not normally necessary to
-    configure this, even in a federated environment.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.acl</name>
-  <value>world:anyone:rwcda</value>
-  <description>
-    A comma-separated list of ZooKeeper ACLs to apply to the znodes
-    used by automatic failover. These ACLs are specified in the same
-    format as used by the ZooKeeper CLI.
-
-    If the ACL itself contains secrets, you may instead specify a
-    path to a file, prefixed with the '@' symbol, and the value of
-    this configuration will be loaded from within.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.auth</name>
-  <value></value>
-  <description>
-    A comma-separated list of ZooKeeper authentications to add when
-    connecting to ZooKeeper. These are specified in the same format
-    as used by the &quot;addauth&quot; command in the ZK CLI. It is
-    important that the authentications specified here are sufficient
-    to access znodes with the ACL specified in ha.zookeeper.acl.
-
-    If the auths contain secrets, you may instead specify a
-    path to a file, prefixed with the '@' symbol, and the value of
-    this configuration will be loaded from within.
-  </description>
-</property>
-
-<!-- SSLFactory configuration -->
-
-<property>
-  <name>hadoop.ssl.keystores.factory.class</name>
-  <value>org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory</value>
-  <description>
-    The keystores factory to use for retrieving certificates.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.require.client.cert</name>
-  <value>false</value>
-  <description>Whether client certificates are required</description>
-</property>
-
-<property>
-  <name>hadoop.ssl.hostname.verifier</name>
-  <value>DEFAULT</value>
-  <description>
-    The hostname verifier to provide for HttpsURLConnections.
-    Valid values are: DEFAULT, STRICT, STRICT_I6, DEFAULT_AND_LOCALHOST and
-    ALLOW_ALL
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.server.conf</name>
-  <value>ssl-server.xml</value>
-  <description>
-    Resource file from which ssl server keystore information will be extracted.
-    This file is looked up in the classpath, typically it should be in Hadoop
-    conf/ directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.client.conf</name>
-  <value>ssl-client.xml</value>
-  <description>
-    Resource file from which ssl client keystore information will be extracted
-    This file is looked up in the classpath, typically it should be in Hadoop
-    conf/ directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.enabled</name>
-  <value>false</value>
-  <description>
-    Deprecated. Use dfs.http.policy and yarn.http.policy instead.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.enabled.protocols</name>
-  <value>TLSv1</value>
-  <description>
-    Protocols supported by the ssl.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.jetty.logs.serve.aliases</name>
-  <value>true</value>
-  <description>
-    Enable/Disable aliases serving from jetty
-  </description>
-</property>
-
-<property>
-  <name>fs.permissions.umask-mode</name>
-  <value>022</value>
-  <description>
-    The umask used when creating files and directories.
-    Can be in octal or in symbolic. Examples are:
-    "022" (octal for u=rwx,g=r-x,o=r-x in symbolic),
-    or "u=rwx,g=rwx,o=" (symbolic for 007 in octal).
-  </description>
-</property>
-
-<!-- ha properties -->
-
-<property>
-  <name>ha.health-monitor.connect-retry-interval.ms</name>
-  <value>1000</value>
-  <description>
-    How often to retry connecting to the service.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.check-interval.ms</name>
-  <value>1000</value>
-  <description>
-    How often to check the service.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.sleep-after-disconnect.ms</name>
-  <value>1000</value>
-  <description>
-    How long to sleep after an unexpected RPC error.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.rpc-timeout.ms</name>
-  <value>45000</value>
-  <description>
-    Timeout for the actual monitorHealth() calls.
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.new-active.rpc-timeout.ms</name>
-  <value>60000</value>
-  <description>
-    Timeout that the FC waits for the new active to become active
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.graceful-fence.rpc-timeout.ms</name>
-  <value>5000</value>
-  <description>
-    Timeout that the FC waits for the old active to go to standby
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.graceful-fence.connection.retries</name>
-  <value>1</value>
-  <description>
-    FC connection retries for graceful fencing
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.cli-check.rpc-timeout.ms</name>
-  <value>20000</value>
-  <description>
-    Timeout that the CLI (manual) FC waits for monitorHealth, getServiceState
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.fallback-to-simple-auth-allowed</name>
-  <value>false</value>
-  <description>
-    When a client is configured to attempt a secure connection, but attempts to
-    connect to an insecure server, that server may instruct the client to
-    switch to SASL SIMPLE (unsecure) authentication. This setting controls
-    whether or not the client will accept this instruction from the server.
-    When false (the default), the client will not allow the fallback to SIMPLE
-    authentication, and will abort the connection.
-  </description>
-</property>
-
-<property>
-  <name>fs.client.resolve.remote.symlinks</name>
-  <value>true</value>
-  <description>
-      Whether to resolve symlinks when accessing a remote Hadoop filesystem.
-      Setting this to false causes an exception to be thrown upon encountering
-      a symlink. This setting does not apply to local filesystems, which
-      automatically resolve local symlinks.
-  </description>
-</property>
-
-<property>
-  <name>nfs.exports.allowed.hosts</name>
-  <value>* rw</value>
-  <description>
-    By default, the export can be mounted by any client. The value string 
-    contains machine name and access privilege, separated by whitespace 
-    characters. The machine name format can be a single host, a Java regular 
-    expression, or an IPv4 address. The access privilege uses rw or ro to 
-    specify read/write or read-only access of the machines to exports. If the 
-    access privilege is not provided, the default is read-only. Entries are separated by ";".
-    For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
-    Only the NFS gateway needs to restart after this property is updated. 
-  </description>
-</property>
-
-<property>
-  <name>hadoop.user.group.static.mapping.overrides</name>
-  <value>dr.who=;</value>
-  <description>
-    Static mapping of user to groups. This will override the groups if
-    available in the system for the specified user. In otherwords, groups
-    look-up will not happen for these users, instead groups mapped in this
-    configuration will be used.
-    Mapping should be in this format.
-    user1=group1,group2;user2=;user3=group2;
-    Default, "dr.who=;" will consider "dr.who" as user without groups.
-  </description>
-</property>
-
-<property>
-  <name>rpc.metrics.quantile.enable</name>
-  <value>false</value>
-  <description>
-    Setting this property to true and rpc.metrics.percentiles.intervals
-    to a comma-separated list of the granularity in seconds, the
-    50/75/90/95/99th percentile latency for rpc queue/processing time in
-    milliseconds are added to rpc metrics.
-  </description>
-</property>
-
-<property>
-  <name>rpc.metrics.percentiles.intervals</name>
-  <value></value>
-  <description>
-    A comma-separated list of the granularity in seconds for the metrics which
-    describe the 50/75/90/95/99th percentile latency for rpc queue/processing
-    time. The metrics are outputted if rpc.metrics.quantile.enable is set to
-    true.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.codec.classes.EXAMPLECIPHERSUITE</name>
-  <value></value>
-  <description>
-    The prefix for a given crypto codec, contains a comma-separated
-    list of implementation classes for a given crypto codec (eg EXAMPLECIPHERSUITE).
-    The first implementation will be used if available, others are fallbacks.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.codec.classes.aes.ctr.nopadding</name>
-  <value>org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec,org.apache.hadoop.crypto.JceAesCtrCryptoCodec</value>
-  <description>
-    Comma-separated list of crypto codec implementations for AES/CTR/NoPadding. 
-    The first implementation will be used if available, others are fallbacks.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.cipher.suite</name>
-  <value>AES/CTR/NoPadding</value>
-  <description>
-    Cipher suite for crypto codec.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.jce.provider</name>
-  <value></value>
-  <description>
-    The JCE provider name used in CryptoCodec. 
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.buffer.size</name>
-  <value>8192</value>
-  <description>
-    The buffer size used by CryptoInputStream and CryptoOutputStream. 
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.java.secure.random.algorithm</name>
-  <value>SHA1PRNG</value>
-  <description>
-    The java secure random algorithm. 
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.secure.random.impl</name>
-  <value></value>
-  <description>
-    Implementation of secure random. 
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.random.device.file.path</name>
-  <value>/dev/urandom</value>
-  <description>
-    OS security random device file path.
-  </description>
-</property>
-
-<property>
-  <name>fs.har.impl.disable.cache</name>
-  <value>true</value>
-  <description>Don't cache 'har' filesystem instances.</description>
-</property>
-
-<!--- KMSClientProvider configurations -->
-<property>
-  <name>hadoop.security.kms.client.authentication.retry-count</name>
-  <value>1</value>
-  <description>
-    Number of time to retry connecting to KMS on authentication failure
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.size</name>
-  <value>500</value>
-  <description>
-    Size of the EncryptedKeyVersion cache Queue for each key
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.low-watermark</name>
-  <value>0.3f</value>
-  <description>
-    If size of the EncryptedKeyVersion cache Queue falls below the
-    low watermark, this cache queue will be scheduled for a refill
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.num.refill.threads</name>
-  <value>2</value>
-  <description>
-    Number of threads to use for refilling depleted EncryptedKeyVersion
-    cache Queues
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.expiry</name>
-  <value>43200000</value>
-  <description>
-    Cache expiry time for a Key, after which the cache Queue for this
-    key will be dropped. Default = 12hrs
-  </description>
-</property>
-
-<property>
-  <name>hadoop.htrace.spanreceiver.classes</name>
-  <value></value>
-  <description>
-    A comma separated list of the fully-qualified class name of classes 
-    implementing SpanReceiver. The tracing system works by collecting 
-    information in structs called 'Spans'. It is up to you to choose 
-    how you want to receive this information by implementing the 
-    SpanReceiver interface.
-  </description>
-</property>
-
- <property>
-  <name>ipc.server.max.connections</name>
-  <value>0</value>
-  <description>The maximum number of concurrent connections a server is allowed
-    to accept. If this limit is exceeded, incoming connections will first fill
-    the listen queue and then may go to an OS-specific listen overflow queue. 
-    The client may fail or timeout, but the server can avoid running out of file
-    descriptors using this feature. 0 means no limit.
-  </description>
-</property>
-
-
-  <!-- YARN registry -->
-
-  <property>
-    <description>
-      Is the registry enabled in the YARN Resource Manager?
-
-      If true, the YARN RM will, as needed.
-      create the user and system paths, and purge
-      service records when containers, application attempts
-      and applications complete.
-
-      If false, the paths must be created by other means,
-      and no automatic cleanup of service records will take place.
-    </description>
-    <name>hadoop.registry.rm.enabled</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <description>
-      The root zookeeper node for the registry
-    </description>
-    <name>hadoop.registry.zk.root</name>
-    <value>/registry</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper session timeout in milliseconds
-    </description>
-    <name>hadoop.registry.zk.session.timeout.ms</name>
-    <value>60000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper connection timeout in milliseconds
-    </description>
-    <name>hadoop.registry.zk.connection.timeout.ms</name>
-    <value>15000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper connection retry count before failing
-    </description>
-    <name>hadoop.registry.zk.retry.times</name>
-    <value>5</value>
-  </property>
-
-  <property>
-    <description>
-    </description>
-    <name>hadoop.registry.zk.retry.interval.ms</name>
-    <value>1000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper retry limit in milliseconds, during
-      exponential backoff.
-
-      This places a limit even
-      if the retry times and interval limit, combined
-      with the backoff policy, result in a long retry
-      period
-    </description>
-    <name>hadoop.registry.zk.retry.ceiling.ms</name>
-    <value>60000</value>
-  </property>
-
-  <property>
-    <description>
-      List of hostname:port pairs defining the
-      zookeeper quorum binding for the registry
-    </description>
-    <name>hadoop.registry.zk.quorum</name>
-    <value>localhost:2181</value>
-  </property>
-
-  <property>
-    <description>
-      Key to set if the registry is secure. Turning it on
-      changes the permissions policy from "open access"
-      to restrictions on kerberos with the option of
-      a user adding one or more auth key pairs down their
-      own tree.
-    </description>
-    <name>hadoop.registry.secure</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <description>
-      A comma separated list of Zookeeper ACL identifiers with
-      system access to the registry in a secure cluster.
-
-      These are given full access to all entries.
-
-      If there is an "@" at the end of a SASL entry it
-      instructs the registry client to append the default kerberos domain.
-    </description>
-    <name>hadoop.registry.system.acls</name>
-    <value>sasl:yarn@, sasl:mapred@, sasl:hdfs@</value>
-  </property>
-
-  <property>
-    <description>
-      The kerberos realm: used to set the realm of
-      system principals which do not declare their realm,
-      and any other accounts that need the value.
-
-      If empty, the default realm of the running process
-      is used.
-
-      If neither are known and the realm is needed, then the registry
-      service/client will fail.
-    </description>
-    <name>hadoop.registry.kerberos.realm</name>
-    <value></value>
-  </property>
-
-  <property>
-    <description>
-      Key to define the JAAS context. Used in secure
-      mode
-    </description>
-    <name>hadoop.registry.jaas.context</name>
-    <value>Client</value>
-  </property>
 
+<configuration>
+	<property>
+		<name>hadoop.security.group.mapping</name>
+		<value>this.does.not.exist.class</value>
+	</property>
 </configuration>
diff --git a/flink-filesystems/flink-swift-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java b/flink-filesystems/flink-swift-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java
index 51e4359784e..dd950aebbda 100644
--- a/flink-filesystems/flink-swift-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java
+++ b/flink-filesystems/flink-swift-fs-hadoop/src/main/java/org/apache/hadoop/conf/Configuration.java
@@ -620,21 +620,9 @@ private void handleDeprecation() {
     }
   }
 
-  static{
-    //print deprecation warning if hadoop-site.xml is found in classpath
-    ClassLoader cL = Thread.currentThread().getContextClassLoader();
-    if (cL == null) {
-      cL = Configuration.class.getClassLoader();
-    }
-    if(cL.getResource("hadoop-site.xml")!=null) {
-      LOG.warn("DEPRECATED: hadoop-site.xml found in the classpath. " +
-          "Usage of hadoop-site.xml is deprecated. Instead use core-site.xml, "
-          + "mapred-site.xml and hdfs-site.xml to override properties of " +
-          "core-default-shaded.xml, mapred-default.xml and hdfs-default.xml " +
-          "respectively");
-    }
+  static {
     addDefaultResource("core-default-shaded.xml");
-    addDefaultResource("core-site.xml");
+    addDefaultResource("core-default-testing.xml");
   }
 
   private Properties properties;
diff --git a/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-default-testing.xml b/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-default-testing.xml
new file mode 100644
index 00000000000..b875e97be2a
--- /dev/null
+++ b/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-default-testing.xml
@@ -0,0 +1,2312 @@
+<?xml version="1.0"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+
+<!--
+   Licensed to the Apache Software Foundation (ASF) under one or more
+   contributor license agreements.  See the NOTICE file distributed with
+   this work for additional information regarding copyright ownership.
+   The ASF licenses this file to You under the Apache License, Version 2.0
+   (the "License"); you may not use this file except in compliance with
+   the License.  You may obtain a copy of the License at
+
+       http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+-->
+
+<!-- Do not modify this file directly.  Instead, copy entries that you -->
+<!-- wish to modify from this file into core-site.xml and change them -->
+<!-- there.  If core-site.xml does not already exist, create it.      -->
+
+<configuration>
+
+<!--- global properties -->
+
+<property>
+  <name>hadoop.common.configuration.version</name>
+  <value>0.23.0</value>
+  <description>version of this configuration file</description>
+</property>
+
+<property>
+  <name>hadoop.tmp.dir</name>
+  <value>/tmp/hadoop-${user.name}</value>
+  <description>A base for other temporary directories.</description>
+</property>
+
+<property>
+  <name>io.native.lib.available</name>
+  <value>true</value>
+  <description>Controls whether to use native libraries for bz2 and zlib
+    compression codecs or not. The property does not control any other native
+    libraries.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.filter.initializers</name>
+  <value>org.apache.hadoop.http.lib.StaticUserWebFilter</value>
+  <description>A comma separated list of class names. Each class in the list
+  must extend org.apache.hadoop.http.FilterInitializer. The corresponding
+  Filter will be initialized. Then, the Filter will be applied to all user
+  facing jsp and servlet web pages.  The ordering of the list defines the
+  ordering of the filters.</description>
+</property>
+
+<!--- security properties -->
+
+<property>
+  <name>hadoop.security.authorization</name>
+  <value>false</value>
+  <description>Is service-level authorization enabled?</description>
+</property>
+
+<property>
+  <name>hadoop.security.instrumentation.requires.admin</name>
+  <value>false</value>
+  <description>
+    Indicates if administrator ACLs are required to access
+    instrumentation servlets (JMX, METRICS, CONF, STACKS).
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.authentication</name>
+  <value>simple</value>
+  <description>Possible values are simple (no authentication), and kerberos
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping</name>
+  <value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
+  <description>
+    Class for user to group mapping (get groups for a given user) for ACL.
+    The default implementation,
+    org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback,
+    will determine if the Java Native Interface (JNI) is available. If JNI is
+    available the implementation will use the API within hadoop to resolve a
+    list of groups for a user. If JNI is not available then the shell
+    implementation, ShellBasedUnixGroupsMapping, is used.  This implementation
+    shells out to the Linux/Unix environment with the
+    <code>bash -c groups</code> command to resolve a list of groups for a user.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.interface</name>
+  <description>
+    The name of the Network Interface from which the service should determine
+    its host name for Kerberos login. e.g. eth2. In a multi-homed environment,
+    the setting can be used to affect the _HOST subsitution in the service
+    Kerberos principal. If this configuration value is not set, the service
+    will use its default hostname as returned by
+    InetAddress.getLocalHost().getCanonicalHostName().
+
+    Most clusters will not require this setting.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.nameserver</name>
+  <description>
+    The host name or IP address of the name server (DNS) which a service Node
+    should use to determine its own host name for Kerberos Login. Requires
+    hadoop.security.dns.interface.
+
+    Most clusters will not require this setting.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.log-slow-lookups.enabled</name>
+  <value>false</value>
+  <description>
+    Time name lookups (via SecurityUtil) and log them if they exceed the
+    configured threshold.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.dns.log-slow-lookups.threshold.ms</name>
+  <value>1000</value>
+  <description>
+    If slow lookup logging is enabled, this threshold is used to decide if a
+    lookup is considered slow enough to be logged.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.secs</name>
+  <value>300</value>
+  <description>
+    This is the config controlling the validity of the entries in the cache
+    containing the user->group mapping. When this duration has expired,
+    then the implementation of the group mapping provider is invoked to get
+    the groups of the user and then cached back.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.negative-cache.secs</name>
+  <value>30</value>
+  <description>
+    Expiration time for entries in the the negative user-to-group mapping
+    caching, in seconds. This is useful when invalid users are retrying
+    frequently. It is suggested to set a small value for this expiration, since
+    a transient error in group lookup could temporarily lock out a legitimate
+    user.
+
+    Set this to zero or negative value to disable negative user-to-group caching.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.warn.after.ms</name>
+  <value>5000</value>
+  <description>
+    If looking up a single user to group takes longer than this amount of
+    milliseconds, we will log a warning message.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.background.reload</name>
+  <value>false</value>
+  <description>
+    Whether to reload expired user->group mappings using a background thread
+    pool. If set to true, a pool of
+    hadoop.security.groups.cache.background.reload.threads is created to
+    update the cache in the background.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.groups.cache.background.reload.threads</name>
+  <value>3</value>
+  <description>
+    Only relevant if hadoop.security.groups.cache.background.reload is true.
+    Controls the number of concurrent background user->group cache entry
+    refreshes. Pending refresh requests beyond this value are queued and
+    processed when a thread is free.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.connection.timeout.ms</name>
+  <value>60000</value>
+  <description>
+    This property is the connection timeout (in milliseconds) for LDAP
+    operations. If the LDAP provider doesn't establish a connection within the
+    specified period, it will abort the connect attempt. Non-positive value
+    means no LDAP connection timeout is specified in which case it waits for the
+    connection to establish until the underlying network times out.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.read.timeout.ms</name>
+  <value>60000</value>
+  <description>
+    This property is the read timeout (in milliseconds) for LDAP
+    operations. If the LDAP provider doesn't get a LDAP response within the
+    specified period, it will abort the read attempt. Non-positive value
+    means no read timeout is specified in which case it waits for the response
+    infinitely.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.url</name>
+  <value></value>
+  <description>
+    The URL of the LDAP server to use for resolving user groups when using
+    the LdapGroupsMapping user to group mapping.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl</name>
+  <value>false</value>
+  <description>
+    Whether or not to use SSL when connecting to the LDAP server.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl.keystore</name>
+  <value></value>
+  <description>
+    File path to the SSL keystore that contains the SSL certificate required
+    by the LDAP server.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.ssl.keystore.password.file</name>
+  <value></value>
+  <description>
+    The path to a file containing the password of the LDAP SSL keystore.
+
+    IMPORTANT: This file should be readable only by the Unix user running
+    the daemons.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.bind.user</name>
+  <value></value>
+  <description>
+    The distinguished name of the user to bind as when connecting to the LDAP
+    server. This may be left blank if the LDAP server supports anonymous binds.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.bind.password.file</name>
+  <value></value>
+  <description>
+    The path to a file containing the password of the bind user.
+
+    IMPORTANT: This file should be readable only by the Unix user running
+    the daemons.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.base</name>
+  <value></value>
+  <description>
+    The search base for the LDAP connection. This is a distinguished name,
+    and will typically be the root of the LDAP directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.filter.user</name>
+  <value>(&amp;(objectClass=user)(sAMAccountName={0}))</value>
+  <description>
+    An additional filter to use when searching for LDAP users. The default will
+    usually be appropriate for Active Directory installations. If connecting to
+    an LDAP server with a non-AD schema, this should be replaced with
+    (&amp;(objectClass=inetOrgPerson)(uid={0}). {0} is a special string used to
+    denote where the username fits into the filter.
+
+    If the LDAP server supports posixGroups, Hadoop can enable the feature by
+    setting the value of this property to "posixAccount" and the value of
+    the hadoop.security.group.mapping.ldap.search.filter.group property to
+    "posixGroup".
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.filter.group</name>
+  <value>(objectClass=group)</value>
+  <description>
+    An additional filter to use when searching for LDAP groups. This should be
+    changed when resolving groups against a non-Active Directory installation.
+
+    See the description of hadoop.security.group.mapping.ldap.search.filter.user
+    to enable posixGroups support.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.attr.member</name>
+  <value>member</value>
+  <description>
+    The attribute of the group object that identifies the users that are
+    members of the group. The default will usually be appropriate for
+    any LDAP installation.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.search.attr.group.name</name>
+  <value>cn</value>
+  <description>
+    The attribute of the group object that identifies the group name. The
+    default will usually be appropriate for all LDAP systems.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.posix.attr.uid.name</name>
+  <value>uidNumber</value>
+  <description>
+    The attribute of posixAccount to use when groups for membership.
+    Mostly useful for schemas wherein groups have memberUids that use an
+    attribute other than uidNumber.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.posix.attr.gid.name</name>
+  <value>gidNumber</value>
+  <description>
+    The attribute of posixAccount indicating the group id.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.ldap.directory.search.timeout</name>
+  <value>10000</value>
+  <description>
+    The attribute applied to the LDAP SearchControl properties to set a
+    maximum time limit when searching and awaiting a result.
+    Set to 0 if infinite wait period is desired.
+    Default is 10 seconds. Units in milliseconds.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.providers</name>
+  <value></value>
+  <description>
+    Comma separated of names of other providers to provide user to group
+    mapping. Used by CompositeGroupsMapping.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.group.mapping.providers.combined</name>
+  <value>true</value>
+  <description>
+    true or false to indicate whether groups from the providers are combined or
+    not. The default value is true. If true, then all the providers will be
+    tried to get groups and all the groups are combined to return as the final
+    results. Otherwise, providers are tried one by one in the configured list
+    order, and if any groups are retrieved from any provider, then the groups
+    will be returned without trying the left ones.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.service.user.name.key</name>
+  <value></value>
+  <description>
+    For those cases where the same RPC protocol is implemented by multiple
+    servers, this configuration is required for specifying the principal
+    name to use for the service when the client wishes to make an RPC call.
+  </description>
+</property>
+
+
+<property>
+    <name>hadoop.security.uid.cache.secs</name>
+    <value>14400</value>
+    <description>
+        This is the config controlling the validity of the entries in the cache
+        containing the userId to userName and groupId to groupName used by
+        NativeIO getFstat().
+    </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.protection</name>
+  <value>authentication</value>
+  <description>A comma-separated list of protection values for secured sasl
+      connections. Possible values are authentication, integrity and privacy.
+      authentication means authentication only and no integrity or privacy;
+      integrity implies authentication and integrity are enabled; and privacy
+      implies all of authentication, integrity and privacy are enabled.
+      hadoop.security.saslproperties.resolver.class can be used to override
+      the hadoop.rpc.protection for a connection at the server side.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.saslproperties.resolver.class</name>
+  <value></value>
+  <description>SaslPropertiesResolver used to resolve the QOP used for a
+      connection. If not specified, the full set of values specified in
+      hadoop.rpc.protection is used while determining the QOP used for the
+      connection. If a class is specified, then the QOP values returned by
+      the class will be used while determining the QOP used for the connection.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.sensitive-config-keys</name>
+  <value>secret$,password$,ssl.keystore.pass$,fs.s3.*[Ss]ecret.?[Kk]ey,fs.azure.account.key.*,dfs.webhdfs.oauth2.[a-z]+.token,hadoop.security.sensitive-config-keys</value>
+  <description>A comma-separated list of regular expressions to match against
+      configuration keys that should be redacted where appropriate, for
+      example, when logging modified properties during a reconfiguration,
+      private credentials should not be logged.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.workaround.non.threadsafe.getpwuid</name>
+  <value>true</value>
+  <description>Some operating systems or authentication modules are known to
+  have broken implementations of getpwuid_r and getpwgid_r, such that these
+  calls are not thread-safe. Symptoms of this problem include JVM crashes
+  with a stack trace inside these functions. If your system exhibits this
+  issue, enable this configuration parameter to include a lock around the
+  calls as a workaround.
+
+  An incomplete list of some systems known to have this issue is available
+  at http://wiki.apache.org/hadoop/KnownBrokenPwuidImplementations
+  </description>
+</property>
+
+<property>
+  <name>hadoop.kerberos.kinit.command</name>
+  <value>kinit</value>
+  <description>Used to periodically renew Kerberos credentials when provided
+  to Hadoop. The default setting assumes that kinit is in the PATH of users
+  running the Hadoop client. Change this to the absolute path to kinit if this
+  is not the case.
+  </description>
+</property>
+
+<property>
+    <name>hadoop.kerberos.min.seconds.before.relogin</name>
+    <value>60</value>
+    <description>The minimum time between relogin attempts for Kerberos, in
+    seconds.
+    </description>
+</property>
+
+<property>
+  <name>hadoop.security.auth_to_local</name>
+  <value></value>
+  <description>Maps kerberos principals to local user names</description>
+</property>
+
+<!-- i/o properties -->
+<property>
+  <name>io.file.buffer.size</name>
+  <value>4096</value>
+  <description>The size of buffer for use in sequence files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>io.bytes.per.checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  io.file.buffer.size.</description>
+</property>
+
+<property>
+  <name>io.skip.checksum.errors</name>
+  <value>false</value>
+  <description>If true, when a checksum error is encountered while
+  reading a sequence file, entries are skipped, instead of throwing an
+  exception.</description>
+</property>
+
+<property>
+  <name>io.compression.codecs</name>
+  <value></value>
+  <description>A comma-separated list of the compression codec classes that can
+  be used for compression/decompression. In addition to any classes specified
+  with this property (which take precedence), codec classes on the classpath
+  are discovered using a Java ServiceLoader.</description>
+</property>
+
+<property>
+  <name>io.compression.codec.bzip2.library</name>
+  <value>system-native</value>
+  <description>The native-code library to be used for compression and
+  decompression by the bzip2 codec.  This library could be specified
+  either by by name or the full pathname.  In the former case, the
+  library is located by the dynamic linker, usually searching the
+  directories specified in the environment variable LD_LIBRARY_PATH.
+
+  The value of "system-native" indicates that the default system
+  library should be used.  To indicate that the algorithm should
+  operate entirely in Java, specify "java-builtin".</description>
+</property>
+
+<property>
+  <name>io.serializations</name>
+  <value>org.apache.hadoop.io.serializer.WritableSerialization, org.apache.hadoop.io.serializer.avro.AvroSpecificSerialization, org.apache.hadoop.io.serializer.avro.AvroReflectSerialization</value>
+  <description>A list of serialization classes that can be used for
+  obtaining serializers and deserializers.</description>
+</property>
+
+<property>
+  <name>io.seqfile.local.dir</name>
+  <value>${hadoop.tmp.dir}/io/local</value>
+  <description>The local directory where sequence file stores intermediate
+  data files during merge.  May be a comma-separated list of
+  directories on different devices in order to spread disk i/o.
+  Directories that do not exist are ignored.
+  </description>
+</property>
+
+<property>
+  <name>io.map.index.skip</name>
+  <value>0</value>
+  <description>Number of index entries to skip between each entry.
+  Zero by default. Setting this to values larger than zero can
+  facilitate opening large MapFiles using less memory.</description>
+</property>
+
+<property>
+  <name>io.map.index.interval</name>
+  <value>128</value>
+  <description>
+    MapFile consist of two files - data file (tuples) and index file
+    (keys). For every io.map.index.interval records written in the
+    data file, an entry (record-key, data-file-position) is written
+    in the index file. This is to allow for doing binary search later
+    within the index file to look up records by their keys and get their
+    closest positions in the data file.
+  </description>
+</property>
+
+<!-- file system properties -->
+
+<property>
+  <name>fs.defaultFS</name>
+  <value>file:///</value>
+  <description>The name of the default file system.  A URI whose
+  scheme and authority determine the FileSystem implementation.  The
+  uri's scheme determines the config property (fs.SCHEME.impl) naming
+  the FileSystem implementation class.  The uri's authority is used to
+  determine the host, port, etc. for a filesystem.</description>
+</property>
+
+<property>
+  <name>fs.default.name</name>
+  <value>file:///</value>
+  <description>Deprecated. Use (fs.defaultFS) property
+  instead</description>
+</property>
+
+<property>
+  <name>fs.trash.interval</name>
+  <value>0</value>
+  <description>Number of minutes after which the checkpoint
+  gets deleted.  If zero, the trash feature is disabled.
+  This option may be configured both on the server and the
+  client. If trash is disabled server side then the client
+  side configuration is checked. If trash is enabled on the
+  server side then the value configured on the server is
+  used and the client configuration value is ignored.
+  </description>
+</property>
+
+<property>
+  <name>fs.trash.checkpoint.interval</name>
+  <value>0</value>
+  <description>Number of minutes between trash checkpoints.
+  Should be smaller or equal to fs.trash.interval. If zero,
+  the value is set to the value of fs.trash.interval.
+  Every time the checkpointer runs it creates a new checkpoint
+  out of current and removes checkpoints created more than
+  fs.trash.interval minutes ago.
+  </description>
+</property>
+
+<property>
+  <name>fs.protected.directories</name>
+  <value></value>
+  <description>A comma-separated list of directories which cannot
+    be deleted even by the superuser unless they are empty. This
+    setting can be used to guard important system directories
+    against accidental deletion due to administrator error.
+  </description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.file.impl</name>
+  <value>org.apache.hadoop.fs.local.LocalFs</value>
+  <description>The AbstractFileSystem for file: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.har.impl</name>
+  <value>org.apache.hadoop.fs.HarFs</value>
+  <description>The AbstractFileSystem for har: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.hdfs.impl</name>
+  <value>org.apache.hadoop.fs.Hdfs</value>
+  <description>The FileSystem for hdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.viewfs.impl</name>
+  <value>org.apache.hadoop.fs.viewfs.ViewFs</value>
+  <description>The AbstractFileSystem for view file system for viewfs: uris
+  (ie client side mount table:).</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.ftp.impl</name>
+  <value>org.apache.hadoop.fs.ftp.FtpFs</value>
+  <description>The FileSystem for Ftp: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.webhdfs.impl</name>
+  <value>org.apache.hadoop.fs.WebHdfs</value>
+  <description>The FileSystem for webhdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.swebhdfs.impl</name>
+  <value>org.apache.hadoop.fs.SWebHdfs</value>
+  <description>The FileSystem for swebhdfs: uris.</description>
+</property>
+
+<property>
+  <name>fs.ftp.host</name>
+  <value>0.0.0.0</value>
+  <description>FTP filesystem connects to this server</description>
+</property>
+
+<property>
+  <name>fs.ftp.host.port</name>
+  <value>21</value>
+  <description>
+    FTP filesystem connects to fs.ftp.host on this port
+  </description>
+</property>
+
+<property>
+  <name>fs.df.interval</name>
+  <value>60000</value>
+  <description>Disk usage statistics refresh interval in msec.</description>
+</property>
+
+<property>
+  <name>fs.du.interval</name>
+  <value>600000</value>
+  <description>File space usage statistics refresh interval in msec.</description>
+</property>
+
+<property>
+  <name>fs.s3.block.size</name>
+  <value>67108864</value>
+  <description>Block size to use when writing files to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3.buffer.dir</name>
+  <value>${hadoop.tmp.dir}/s3</value>
+  <description>Determines where on the local filesystem the s3:/s3n: filesystem
+  should store files before sending them to S3
+  (or after retrieving them from S3).
+  </description>
+</property>
+
+<property>
+  <name>fs.s3.maxRetries</name>
+  <value>4</value>
+  <description>The maximum number of retries for reading or writing files to S3,
+  before we signal failure to the application.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3.sleepTimeSeconds</name>
+  <value>10</value>
+  <description>The number of seconds to sleep between each S3 retry.
+  </description>
+</property>
+
+<property>
+  <name>fs.automatic.close</name>
+  <value>true</value>
+  <description>By default, FileSystem instances are automatically closed at program
+  exit using a JVM shutdown hook. Setting this property to false disables this
+  behavior. This is an advanced option that should only be used by server applications
+  requiring a more carefully orchestrated shutdown sequence.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.block.size</name>
+  <value>67108864</value>
+  <description>Block size to use when reading files using the native S3
+  filesystem (s3n: URIs).</description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.uploads.enabled</name>
+  <value>false</value>
+  <description>Setting this property to true enables multiple uploads to
+  native S3 filesystem. When uploading a file, it is split into blocks
+  if the size is larger than fs.s3n.multipart.uploads.block.size.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.uploads.block.size</name>
+  <value>67108864</value>
+  <description>The block size for multipart uploads to native S3 filesystem.
+  Default size is 64MB.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.multipart.copy.block.size</name>
+  <value>5368709120</value>
+  <description>The block size for multipart copy in native S3 filesystem.
+  Default size is 5GB.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3n.server-side-encryption-algorithm</name>
+  <value></value>
+  <description>Specify a server-side encryption algorithm for S3.
+  Unset by default, and the only other currently allowable value is AES256.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.access.key</name>
+  <description>AWS access key ID used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
+</property>
+
+<property>
+  <name>fs.s3a.secret.key</name>
+  <description>AWS secret key used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
+</property>
+
+<property>
+  <name>fs.s3a.aws.credentials.provider</name>
+  <description>
+	  Comma-separated class names of credential provider classes which implement
+	  com.amazonaws.auth.AWSCredentialsProvider.
+
+	  These are loaded and queried in sequence for a valid set of credentials.
+	  Each listed class must implement one of the following means of
+	  construction, which are attempted in order:
+	  1. a public constructor accepting java.net.URI and
+	  org.apache.hadoop.conf.Configuration,
+	  2. a public static method named getInstance that accepts no
+	  arguments and returns an instance of
+	  com.amazonaws.auth.AWSCredentialsProvider, or
+	  3. a public default constructor.
+
+	  Specifying
+	  org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider
+	  allows
+	  anonymous access to a publicly accessible S3 bucket without any credentials.
+	  Please note that allowing anonymous access to an S3 bucket compromises
+	  security and therefore is unsuitable for most use cases. It can be useful
+	  for accessing public data sets without requiring AWS credentials.
+
+	  If unspecified, then the default list of credential provider classes,
+	  queried in sequence, is:
+	  1. org.apache.hadoop.fs.s3a.BasicAWSCredentialsProvider:
+	  supports static
+	  configuration of AWS access key ID and secret access key. See also
+	  fs.s3a.access.key and fs.s3a.secret.key.
+	  2. com.amazonaws.auth.EnvironmentVariableCredentialsProvider: supports
+	  configuration of AWS access key ID and secret access key in
+	  environment variables named AWS_ACCESS_KEY_ID and
+	  AWS_SECRET_ACCESS_KEY, as documented in the AWS SDK.
+	  3.
+	  org.apache.hadoop.fs.s3a.SharedInstanceProfileCredentialsProvider:
+	  a shared instance of
+	  com.amazonaws.auth.InstanceProfileCredentialsProvider from the AWS
+	  SDK, which supports use of instance profile credentials if running
+	  in an EC2 VM. Using this shared instance potentially reduces load
+	  on the EC2 instance metadata service for multi-threaded
+	  applications.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.session.token</name>
+  <description>Session token, when using org.apache.hadoop.fs.s3a.TemporaryAWSCredentialsProvider
+    as one of the providers.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.security.credential.provider.path</name>
+  <value />
+  <description>
+    Optional comma separated list of credential providers, a list
+    which is prepended to that set in hadoop.security.credential.provider.path
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.maximum</name>
+  <value>15</value>
+  <description>Controls the maximum number of simultaneous connections to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.ssl.enabled</name>
+  <value>true</value>
+  <description>Enables or disables SSL connections to S3.</description>
+</property>
+
+<property>
+  <name>fs.s3a.endpoint</name>
+  <description>AWS S3 endpoint to connect to. An up-to-date list is
+    provided in the AWS Documentation: regions and endpoints. Without this
+    property, the standard region (s3.amazonaws.com) is assumed.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.path.style.access</name>
+  <value>false</value>
+  <description>Enable S3 path style access ie disabling the default virtual hosting behaviour.
+    Useful for S3A-compliant storage providers as it removes the need to set up DNS for virtual hosting.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.host</name>
+  <description>Hostname of the (optional) proxy server for S3 connections.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.port</name>
+  <description>Proxy server port. If this property is not set
+    but fs.s3a.proxy.host is, port 80 or 443 is assumed (consistent with
+    the value of fs.s3a.connection.ssl.enabled).</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.username</name>
+  <description>Username for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.password</name>
+  <description>Password for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.domain</name>
+  <description>Domain for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.proxy.workstation</name>
+  <description>Workstation for authenticating with proxy server.</description>
+</property>
+
+<property>
+  <name>fs.s3a.attempts.maximum</name>
+  <value>20</value>
+  <description>How many times we should retry commands on transient errors.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.establish.timeout</name>
+  <value>5000</value>
+  <description>Socket connection setup timeout in milliseconds.</description>
+</property>
+
+<property>
+  <name>fs.s3a.connection.timeout</name>
+  <value>200000</value>
+  <description>Socket connection timeout in milliseconds.</description>
+</property>
+
+<property>
+  <name>fs.s3a.socket.send.buffer</name>
+  <value>8192</value>
+  <description>Socket send buffer hint to amazon connector. Represented in bytes.</description>
+</property>
+
+<property>
+  <name>fs.s3a.socket.recv.buffer</name>
+  <value>8192</value>
+  <description>Socket receive buffer hint to amazon connector. Represented in bytes.</description>
+</property>
+
+<property>
+  <name>fs.s3a.paging.maximum</name>
+  <value>5000</value>
+  <description>How many keys to request from S3 when doing
+     directory listings at a time.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.max</name>
+  <value>10</value>
+  <description>The total number of threads available in the filesystem for data
+    uploads *or any other queued filesystem operation*.</description>
+</property>
+
+<property>
+  <name>fs.s3a.threads.keepalivetime</name>
+  <value>60</value>
+  <description>Number of seconds a thread can be idle before being
+    terminated.</description>
+</property>
+
+<property>
+  <name>fs.s3a.max.total.tasks</name>
+  <value>5</value>
+  <description>The number of operations which can be queued for execution</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.size</name>
+  <value>100M</value>
+  <description>How big (in bytes) to split upload or copy operations up into.
+    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.threshold</name>
+  <value>2147483647</value>
+  <description>How big (in bytes) to split upload or copy operations up into.
+    This also controls the partition size in renamed files, as rename() involves
+    copying the source file(s).
+    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.multiobjectdelete.enable</name>
+  <value>true</value>
+  <description>When enabled, multiple single-object delete requests are replaced by
+    a single 'delete multiple objects'-request, reducing the number of requests.
+    Beware: legacy S3-compatible object stores might not support this request.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.acl.default</name>
+  <description>Set a canned ACL for newly created and copied objects. Value may be Private,
+      PublicRead, PublicReadWrite, AuthenticatedRead, LogDeliveryWrite, BucketOwnerRead,
+      or BucketOwnerFullControl.</description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.purge</name>
+  <value>false</value>
+  <description>True if you want to purge existing multipart uploads that may not have been
+    completed/aborted correctly. The corresponding purge age is defined in
+    fs.s3a.multipart.purge.age.
+    If set, when the filesystem is instantiated then all outstanding uploads
+    older than the purge age will be terminated -across the entire bucket.
+    This will impact multipart uploads by other applications and users. so should
+    be used sparingly, with an age value chosen to stop failed uploads, without
+    breaking ongoing operations.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.multipart.purge.age</name>
+  <value>86400</value>
+  <description>Minimum age in seconds of multipart uploads to purge.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.server-side-encryption-algorithm</name>
+  <description>Specify a server-side encryption algorithm for s3a: file system.
+    Unset by default, and the only other currently allowable value is AES256.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.signing-algorithm</name>
+  <description>Override the default signing algorithm so legacy
+    implementations can still be used</description>
+</property>
+
+<property>
+  <name>fs.s3a.block.size</name>
+  <value>32M</value>
+  <description>Block size to use when reading files using s3a: file system.
+    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.buffer.dir</name>
+  <value>${hadoop.tmp.dir}/s3a</value>
+  <description>Comma separated list of directories that will be used to buffer file
+    uploads to.</description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload</name>
+  <value>false</value>
+  <description>
+    Use the incremental block-based fast upload mechanism with
+    the buffering mechanism set in fs.s3a.fast.upload.buffer.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload.buffer</name>
+  <value>disk</value>
+  <description>
+    The buffering mechanism to use when using S3A fast upload
+    (fs.s3a.fast.upload=true). Values: disk, array, bytebuffer.
+    This configuration option has no effect if fs.s3a.fast.upload is false.
+
+    "disk" will use the directories listed in fs.s3a.buffer.dir as
+    the location(s) to save data prior to being uploaded.
+
+    "array" uses arrays in the JVM heap
+
+    "bytebuffer" uses off-heap memory within the JVM.
+
+    Both "array" and "bytebuffer" will consume memory in a single stream up to the number
+    of blocks set by:
+
+        fs.s3a.multipart.size * fs.s3a.fast.upload.active.blocks.
+
+    If using either of these mechanisms, keep this value low
+
+    The total number of threads performing work across all threads is set by
+    fs.s3a.threads.max, with fs.s3a.max.total.tasks values setting the number of queued
+    work items.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.fast.upload.active.blocks</name>
+  <value>4</value>
+  <description>
+    Maximum Number of blocks a single output stream can have
+    active (uploading, or queued to the central FileSystem
+    instance's pool of queued operations.
+
+    This stops a single stream overloading the shared thread pool.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.readahead.range</name>
+  <value>64K</value>
+  <description>Bytes to read ahead during a seek() before closing and
+  re-opening the S3 HTTP connection. This option will be overridden if
+  any call to setReadahead() is made to an open stream.
+  A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.user.agent.prefix</name>
+  <value></value>
+  <description>
+    Sets a custom value that will be prepended to the User-Agent header sent in
+    HTTP requests to the S3 back-end by S3AFileSystem.  The User-Agent header
+    always includes the Hadoop version number followed by a string generated by
+    the AWS SDK.  An example is "User-Agent: Hadoop 2.8.0, aws-sdk-java/1.10.6".
+    If this optional property is set, then its value is prepended to create a
+    customized User-Agent.  For example, if this configuration property was set
+    to "MyApp", then an example of the resulting User-Agent would be
+    "User-Agent: MyApp, Hadoop 2.8.0, aws-sdk-java/1.10.6".
+  </description>
+</property>
+
+<property>
+  <name>fs.s3a.impl</name>
+  <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
+  <description>The implementation class of the S3A Filesystem</description>
+</property>
+
+<property>
+  <name>fs.AbstractFileSystem.s3a.impl</name>
+  <value>org.apache.hadoop.fs.s3a.S3A</value>
+  <description>The implementation class of the S3A AbstractFileSystem.</description>
+</property>
+
+<property>
+  <name>io.seqfile.compress.blocksize</name>
+  <value>1000000</value>
+  <description>The minimum block size for compression in block compressed
+          SequenceFiles.
+  </description>
+</property>
+
+ <property>
+  <name>io.mapfile.bloom.size</name>
+  <value>1048576</value>
+  <description>The size of BloomFilter-s used in BloomMapFile. Each time this many
+  keys is appended the next BloomFilter will be created (inside a DynamicBloomFilter).
+  Larger values minimize the number of filters, which slightly increases the performance,
+  but may waste too much space if the total number of keys is usually much smaller
+  than this number.
+  </description>
+</property>
+
+<property>
+  <name>io.mapfile.bloom.error.rate</name>
+  <value>0.005</value>
+  <description>The rate of false positives in BloomFilter-s used in BloomMapFile.
+  As this value decreases, the size of BloomFilter-s increases exponentially. This
+  value is the probability of encountering false positives (default is 0.5%).
+  </description>
+</property>
+
+<property>
+  <name>hadoop.util.hash.type</name>
+  <value>murmur</value>
+  <description>The default implementation of Hash. Currently this can take one of the
+  two values: 'murmur' to select MurmurHash and 'jenkins' to select JenkinsHash.
+  </description>
+</property>
+
+
+<!-- ipc properties -->
+
+<property>
+  <name>ipc.client.idlethreshold</name>
+  <value>4000</value>
+  <description>Defines the threshold number of connections after which
+               connections will be inspected for idleness.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.kill.max</name>
+  <value>10</value>
+  <description>Defines the maximum number of clients to disconnect in one go.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connection.maxidletime</name>
+  <value>10000</value>
+  <description>The maximum time in msec after which a client will bring down the
+               connection to the server.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.max.retries</name>
+  <value>10</value>
+  <description>Indicates the number of retries a client will make to establish
+               a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.retry.interval</name>
+  <value>1000</value>
+  <description>Indicates the number of milliseconds a client will wait for
+    before retrying to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.timeout</name>
+  <value>20000</value>
+  <description>Indicates the number of milliseconds a client will wait for the
+               socket to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.connect.max.retries.on.timeouts</name>
+  <value>45</value>
+  <description>Indicates the number of retries a client will make on socket timeout
+               to establish a server connection.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.tcpnodelay</name>
+  <value>true</value>
+  <description>Use TCP_NODELAY flag to bypass Nagle's algorithm transmission delays.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.low-latency</name>
+  <value>false</value>
+  <description>Use low-latency QoS markers for IPC connections.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.ping</name>
+  <value>true</value>
+  <description>Send a ping to the server when timeout on reading the response,
+  if set to true. If no failure is detected, the client retries until at least
+  a byte is read or the time given by ipc.client.rpc-timeout.ms is passed.
+  </description>
+</property>
+
+<property>
+  <name>ipc.ping.interval</name>
+  <value>60000</value>
+  <description>Timeout on waiting response from server, in milliseconds.
+  The client will send ping when the interval is passed without receiving bytes,
+  if ipc.client.ping is set to true.
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.rpc-timeout.ms</name>
+  <value>0</value>
+  <description>Timeout on waiting response from server, in milliseconds.
+  If ipc.client.ping is set to true and this rpc-timeout is greater than
+  the value of ipc.ping.interval, the effective value of the rpc-timeout is
+  rounded up to multiple of ipc.ping.interval.
+  </description>
+</property>
+
+<property>
+  <name>ipc.server.listen.queue.size</name>
+  <value>128</value>
+  <description>Indicates the length of the listen queue for servers accepting
+               client connections.
+  </description>
+</property>
+
+<property>
+    <name>ipc.server.log.slow.rpc</name>
+    <value>false</value>
+    <description>This setting is useful to troubleshoot performance issues for
+     various services. If this value is set to true then we log requests that
+     fall into 99th percentile as well as increment RpcSlowCalls counter.
+    </description>
+</property>
+
+<property>
+  <name>ipc.maximum.data.length</name>
+  <value>67108864</value>
+  <description>This indicates the maximum IPC message length (bytes) that can be
+    accepted by the server. Messages larger than this value are rejected by the
+    immediately to avoid possible OOMs. This setting should rarely need to be
+    changed.
+  </description>
+</property>
+
+<property>
+  <name>ipc.maximum.response.length</name>
+  <value>134217728</value>
+  <description>This indicates the maximum IPC message length (bytes) that can be
+    accepted by the client. Messages larger than this value are rejected
+    immediately to avoid possible OOMs. This setting should rarely need to be
+    changed.  Set to 0 to disable.
+  </description>
+</property>
+
+<!-- Proxy Configuration -->
+
+<property>
+  <name>hadoop.security.impersonation.provider.class</name>
+  <value></value>
+  <description>A class which implements ImpersonationProvider interface, used to
+       authorize whether one user can impersonate a specific user.
+       If not specified, the DefaultImpersonationProvider will be used.
+       If a class is specified, then that class will be used to determine
+       the impersonation capability.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.socket.factory.class.default</name>
+  <value>org.apache.hadoop.net.StandardSocketFactory</value>
+  <description> Default SocketFactory to use. This parameter is expected to be
+    formatted as "package.FactoryClassName".
+  </description>
+</property>
+
+<property>
+  <name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
+  <value></value>
+  <description> SocketFactory to use to connect to a DFS. If null or empty, use
+    hadoop.rpc.socket.class.default. This socket factory is also used by
+    DFSClient to create sockets to DataNodes.
+  </description>
+</property>
+
+
+
+<property>
+  <name>hadoop.socks.server</name>
+  <value></value>
+  <description> Address (host:port) of the SOCKS server to be used by the
+    SocksSocketFactory.
+  </description>
+</property>
+
+<!-- Topology Configuration -->
+<property>
+  <name>net.topology.node.switch.mapping.impl</name>
+  <value>org.apache.hadoop.net.ScriptBasedMapping</value>
+  <description> The default implementation of the DNSToSwitchMapping. It
+    invokes a script specified in net.topology.script.file.name to resolve
+    node names. If the value for net.topology.script.file.name is not set, the
+    default value of DEFAULT_RACK is returned for all node names.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.impl</name>
+  <value>org.apache.hadoop.net.NetworkTopology</value>
+  <description> The default implementation of NetworkTopology which is classic three layer one.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.script.file.name</name>
+  <value></value>
+  <description> The script name that should be invoked to resolve DNS names to
+    NetworkTopology names. Example: the script would take host.foo.bar as an
+    argument, and return /rack1 as the output.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.script.number.args</name>
+  <value>100</value>
+  <description> The max number of args that the script configured with
+    net.topology.script.file.name should be run with. Each arg is an
+    IP address.
+  </description>
+</property>
+
+<property>
+  <name>net.topology.table.file.name</name>
+  <value></value>
+  <description> The file name for a topology file, which is used when the
+    net.topology.node.switch.mapping.impl property is set to
+    org.apache.hadoop.net.TableMapping. The file format is a two column text
+    file, with columns separated by whitespace. The first column is a DNS or
+    IP address and the second column specifies the rack where the address maps.
+    If no entry corresponding to a host in the cluster is found, then
+    /default-rack is assumed.
+  </description>
+</property>
+
+<!-- Local file system -->
+<property>
+  <name>file.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>file.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  file.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>file.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>file.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>file.replication</name>
+  <value>1</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- s3 File System -->
+
+<property>
+  <name>s3.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>s3.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  s3.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>s3.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>s3.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>s3.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- s3native File System -->
+
+<property>
+  <name>s3native.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>s3native.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  s3native.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>s3native.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>s3native.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>s3native.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- FTP file system -->
+<property>
+  <name>ftp.stream-buffer-size</name>
+  <value>4096</value>
+  <description>The size of buffer to stream files.
+  The size of this buffer should probably be a multiple of hardware
+  page size (4096 on Intel x86), and it determines how much data is
+  buffered during read and write operations.</description>
+</property>
+
+<property>
+  <name>ftp.bytes-per-checksum</name>
+  <value>512</value>
+  <description>The number of bytes per checksum.  Must not be larger than
+  ftp.stream-buffer-size</description>
+</property>
+
+<property>
+  <name>ftp.client-write-packet-size</name>
+  <value>65536</value>
+  <description>Packet size for clients to write</description>
+</property>
+
+<property>
+  <name>ftp.blocksize</name>
+  <value>67108864</value>
+  <description>Block size</description>
+</property>
+
+<property>
+  <name>ftp.replication</name>
+  <value>3</value>
+  <description>Replication factor</description>
+</property>
+
+<!-- Tfile -->
+
+<property>
+  <name>tfile.io.chunk.size</name>
+  <value>1048576</value>
+  <description>
+    Value chunk size in bytes. Default  to
+    1MB. Values of the length less than the chunk size is
+    guaranteed to have known value length in read time (See also
+    TFile.Reader.Scanner.Entry.isValueLengthKnown()).
+  </description>
+</property>
+
+<property>
+  <name>tfile.fs.output.buffer.size</name>
+  <value>262144</value>
+  <description>
+    Buffer size used for FSDataOutputStream in bytes.
+  </description>
+</property>
+
+<property>
+  <name>tfile.fs.input.buffer.size</name>
+  <value>262144</value>
+  <description>
+    Buffer size used for FSDataInputStream in bytes.
+  </description>
+</property>
+
+<!-- HTTP web-consoles Authentication -->
+
+<property>
+  <name>hadoop.http.authentication.type</name>
+  <value>simple</value>
+  <description>
+    Defines authentication used for Oozie HTTP endpoint.
+    Supported values are: simple | kerberos | #AUTHENTICATION_HANDLER_CLASSNAME#
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.token.validity</name>
+  <value>36000</value>
+  <description>
+    Indicates how long (in seconds) an authentication token is valid before it has
+    to be renewed.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.signature.secret.file</name>
+  <value>${user.home}/hadoop-http-auth-signature-secret</value>
+  <description>
+    The signature secret for signing the authentication tokens.
+    The same secret should be used for JT/NN/DN/TT configurations.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.cookie.domain</name>
+  <value></value>
+  <description>
+    The domain to use for the HTTP cookie that stores the authentication token.
+    In order to authentiation to work correctly across all Hadoop nodes web-consoles
+    the domain must be correctly set.
+    IMPORTANT: when using IP addresses, browsers ignore cookies with domain settings.
+    For this setting to work properly all nodes in the cluster must be configured
+    to generate URLs with hostname.domain names on it.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.simple.anonymous.allowed</name>
+  <value>true</value>
+  <description>
+    Indicates if anonymous requests are allowed when using 'simple' authentication.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.kerberos.principal</name>
+  <value>HTTP/_HOST@LOCALHOST</value>
+  <description>
+    Indicates the Kerberos principal to be used for HTTP endpoint.
+    The principal MUST start with 'HTTP/' as per Kerberos HTTP SPNEGO specification.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.http.authentication.kerberos.keytab</name>
+  <value>${user.home}/hadoop.keytab</value>
+  <description>
+    Location of the keytab file with the credentials for the principal.
+    Referring to the same keytab file Oozie uses for its Kerberos credentials for Hadoop.
+  </description>
+</property>
+
+<!-- HTTP CORS support -->
+<property>
+  <description>Enable/disable the cross-origin (CORS) filter.</description>
+  <name>hadoop.http.cross-origin.enabled</name>
+  <value>false</value>
+</property>
+
+<property>
+  <description>Comma separated list of origins that are allowed for web
+    services needing cross-origin (CORS) support. Wildcards (*) and patterns
+    allowed</description>
+  <name>hadoop.http.cross-origin.allowed-origins</name>
+  <value>*</value>
+</property>
+
+<property>
+  <description>Comma separated list of methods that are allowed for web
+    services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.allowed-methods</name>
+  <value>GET,POST,HEAD</value>
+</property>
+
+<property>
+  <description>Comma separated list of headers that are allowed for web
+    services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.allowed-headers</name>
+  <value>X-Requested-With,Content-Type,Accept,Origin</value>
+</property>
+
+<property>
+  <description>The number of seconds a pre-flighted request can be cached
+    for web services needing cross-origin (CORS) support.</description>
+  <name>hadoop.http.cross-origin.max-age</name>
+  <value>1800</value>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.methods</name>
+  <value></value>
+  <description>
+    List of fencing methods to use for service fencing. May contain
+    builtin methods (eg shell and sshfence) or user-defined method.
+  </description>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.ssh.connect-timeout</name>
+  <value>30000</value>
+  <description>
+    SSH connection timeout, in milliseconds, to use with the builtin
+    sshfence fencer.
+  </description>
+</property>
+
+<property>
+  <name>dfs.ha.fencing.ssh.private-key-files</name>
+  <value></value>
+  <description>
+    The SSH private key files to use with the builtin sshfence fencer.
+  </description>
+</property>
+
+
+<!-- Static Web User Filter properties. -->
+<property>
+  <description>
+    The user name to filter as, on static web filters
+    while rendering content. An example use is the HDFS
+    web UI (user to be used for browsing files).
+  </description>
+  <name>hadoop.http.staticuser.user</name>
+  <value>dr.who</value>
+</property>
+
+<property>
+  <name>ha.zookeeper.quorum</name>
+  <description>
+    A list of ZooKeeper server addresses, separated by commas, that are
+    to be used by the ZKFailoverController in automatic failover.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.session-timeout.ms</name>
+  <value>5000</value>
+  <description>
+    The session timeout to use when the ZKFC connects to ZooKeeper.
+    Setting this value to a lower value implies that server crashes
+    will be detected more quickly, but risks triggering failover too
+    aggressively in the case of a transient error or network blip.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.parent-znode</name>
+  <value>/hadoop-ha</value>
+  <description>
+    The ZooKeeper znode under which the ZK failover controller stores
+    its information. Note that the nameservice ID is automatically
+    appended to this znode, so it is not normally necessary to
+    configure this, even in a federated environment.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.acl</name>
+  <value>world:anyone:rwcda</value>
+  <description>
+    A comma-separated list of ZooKeeper ACLs to apply to the znodes
+    used by automatic failover. These ACLs are specified in the same
+    format as used by the ZooKeeper CLI.
+
+    If the ACL itself contains secrets, you may instead specify a
+    path to a file, prefixed with the '@' symbol, and the value of
+    this configuration will be loaded from within.
+  </description>
+</property>
+
+<property>
+  <name>ha.zookeeper.auth</name>
+  <value></value>
+  <description>
+    A comma-separated list of ZooKeeper authentications to add when
+    connecting to ZooKeeper. These are specified in the same format
+    as used by the &quot;addauth&quot; command in the ZK CLI. It is
+    important that the authentications specified here are sufficient
+    to access znodes with the ACL specified in ha.zookeeper.acl.
+
+    If the auths contain secrets, you may instead specify a
+    path to a file, prefixed with the '@' symbol, and the value of
+    this configuration will be loaded from within.
+  </description>
+</property>
+
+<!-- SSLFactory configuration -->
+
+<property>
+  <name>hadoop.ssl.keystores.factory.class</name>
+  <value>org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory</value>
+  <description>
+    The keystores factory to use for retrieving certificates.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.require.client.cert</name>
+  <value>false</value>
+  <description>Whether client certificates are required</description>
+</property>
+
+<property>
+  <name>hadoop.ssl.hostname.verifier</name>
+  <value>DEFAULT</value>
+  <description>
+    The hostname verifier to provide for HttpsURLConnections.
+    Valid values are: DEFAULT, STRICT, STRICT_I6, DEFAULT_AND_LOCALHOST and
+    ALLOW_ALL
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.server.conf</name>
+  <value>ssl-server.xml</value>
+  <description>
+    Resource file from which ssl server keystore information will be extracted.
+    This file is looked up in the classpath, typically it should be in Hadoop
+    conf/ directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.client.conf</name>
+  <value>ssl-client.xml</value>
+  <description>
+    Resource file from which ssl client keystore information will be extracted
+    This file is looked up in the classpath, typically it should be in Hadoop
+    conf/ directory.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.enabled</name>
+  <value>false</value>
+  <description>
+    Deprecated. Use dfs.http.policy and yarn.http.policy instead.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.ssl.enabled.protocols</name>
+  <value>TLSv1</value>
+  <description>
+    Protocols supported by the ssl.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.jetty.logs.serve.aliases</name>
+  <value>true</value>
+  <description>
+    Enable/Disable aliases serving from jetty
+  </description>
+</property>
+
+<property>
+  <name>fs.permissions.umask-mode</name>
+  <value>022</value>
+  <description>
+    The umask used when creating files and directories.
+    Can be in octal or in symbolic. Examples are:
+    "022" (octal for u=rwx,g=r-x,o=r-x in symbolic),
+    or "u=rwx,g=rwx,o=" (symbolic for 007 in octal).
+  </description>
+</property>
+
+<!-- ha properties -->
+
+<property>
+  <name>ha.health-monitor.connect-retry-interval.ms</name>
+  <value>1000</value>
+  <description>
+    How often to retry connecting to the service.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.check-interval.ms</name>
+  <value>1000</value>
+  <description>
+    How often to check the service.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.sleep-after-disconnect.ms</name>
+  <value>1000</value>
+  <description>
+    How long to sleep after an unexpected RPC error.
+  </description>
+</property>
+
+<property>
+  <name>ha.health-monitor.rpc-timeout.ms</name>
+  <value>45000</value>
+  <description>
+    Timeout for the actual monitorHealth() calls.
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.new-active.rpc-timeout.ms</name>
+  <value>60000</value>
+  <description>
+    Timeout that the FC waits for the new active to become active
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.graceful-fence.rpc-timeout.ms</name>
+  <value>5000</value>
+  <description>
+    Timeout that the FC waits for the old active to go to standby
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.graceful-fence.connection.retries</name>
+  <value>1</value>
+  <description>
+    FC connection retries for graceful fencing
+  </description>
+</property>
+
+<property>
+  <name>ha.failover-controller.cli-check.rpc-timeout.ms</name>
+  <value>20000</value>
+  <description>
+    Timeout that the CLI (manual) FC waits for monitorHealth, getServiceState
+  </description>
+</property>
+
+<property>
+  <name>ipc.client.fallback-to-simple-auth-allowed</name>
+  <value>false</value>
+  <description>
+    When a client is configured to attempt a secure connection, but attempts to
+    connect to an insecure server, that server may instruct the client to
+    switch to SASL SIMPLE (unsecure) authentication. This setting controls
+    whether or not the client will accept this instruction from the server.
+    When false (the default), the client will not allow the fallback to SIMPLE
+    authentication, and will abort the connection.
+  </description>
+</property>
+
+<property>
+  <name>fs.client.resolve.remote.symlinks</name>
+  <value>true</value>
+  <description>
+      Whether to resolve symlinks when accessing a remote Hadoop filesystem.
+      Setting this to false causes an exception to be thrown upon encountering
+      a symlink. This setting does not apply to local filesystems, which
+      automatically resolve local symlinks.
+  </description>
+</property>
+
+<property>
+  <name>nfs.exports.allowed.hosts</name>
+  <value>* rw</value>
+  <description>
+    By default, the export can be mounted by any client. The value string
+    contains machine name and access privilege, separated by whitespace
+    characters. The machine name format can be a single host, a Java regular
+    expression, or an IPv4 address. The access privilege uses rw or ro to
+    specify read/write or read-only access of the machines to exports. If the
+    access privilege is not provided, the default is read-only. Entries are separated by ";".
+    For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
+    Only the NFS gateway needs to restart after this property is updated.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.user.group.static.mapping.overrides</name>
+  <value>dr.who=;</value>
+  <description>
+    Static mapping of user to groups. This will override the groups if
+    available in the system for the specified user. In otherwords, groups
+    look-up will not happen for these users, instead groups mapped in this
+    configuration will be used.
+    Mapping should be in this format.
+    user1=group1,group2;user2=;user3=group2;
+    Default, "dr.who=;" will consider "dr.who" as user without groups.
+  </description>
+</property>
+
+<property>
+  <name>rpc.metrics.quantile.enable</name>
+  <value>false</value>
+  <description>
+    Setting this property to true and rpc.metrics.percentiles.intervals
+    to a comma-separated list of the granularity in seconds, the
+    50/75/90/95/99th percentile latency for rpc queue/processing time in
+    milliseconds are added to rpc metrics.
+  </description>
+</property>
+
+<property>
+  <name>rpc.metrics.percentiles.intervals</name>
+  <value></value>
+  <description>
+    A comma-separated list of the granularity in seconds for the metrics which
+    describe the 50/75/90/95/99th percentile latency for rpc queue/processing
+    time. The metrics are outputted if rpc.metrics.quantile.enable is set to
+    true.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.codec.classes.EXAMPLECIPHERSUITE</name>
+  <value></value>
+  <description>
+    The prefix for a given crypto codec, contains a comma-separated
+    list of implementation classes for a given crypto codec (eg EXAMPLECIPHERSUITE).
+    The first implementation will be used if available, others are fallbacks.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.codec.classes.aes.ctr.nopadding</name>
+  <value>org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec, org.apache.hadoop.crypto.JceAesCtrCryptoCodec</value>
+  <description>
+    Comma-separated list of crypto codec implementations for AES/CTR/NoPadding.
+    The first implementation will be used if available, others are fallbacks.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.cipher.suite</name>
+  <value>AES/CTR/NoPadding</value>
+  <description>
+    Cipher suite for crypto codec.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.jce.provider</name>
+  <value></value>
+  <description>
+    The JCE provider name used in CryptoCodec.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.crypto.buffer.size</name>
+  <value>8192</value>
+  <description>
+    The buffer size used by CryptoInputStream and CryptoOutputStream.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.java.secure.random.algorithm</name>
+  <value>SHA1PRNG</value>
+  <description>
+    The java secure random algorithm.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.secure.random.impl</name>
+  <value></value>
+  <description>
+    Implementation of secure random.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.random.device.file.path</name>
+  <value>/dev/urandom</value>
+  <description>
+    OS security random device file path.
+  </description>
+</property>
+
+<property>
+  <name>hadoop.security.key.provider.path</name>
+  <description>
+    The KeyProvider to use when managing zone keys, and interacting with
+    encryption keys when reading and writing to an encryption zone.
+  </description>
+</property>
+
+<property>
+  <name>fs.har.impl.disable.cache</name>
+  <value>true</value>
+  <description>Don't cache 'har' filesystem instances.</description>
+</property>
+
+<!--- KMSClientProvider configurations -->
+<property>
+  <name>hadoop.security.kms.client.authentication.retry-count</name>
+  <value>1</value>
+  <description>
+    Number of time to retry connecting to KMS on authentication failure
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.size</name>
+  <value>500</value>
+  <description>
+    Size of the EncryptedKeyVersion cache Queue for each key
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.low-watermark</name>
+  <value>0.3f</value>
+  <description>
+    If size of the EncryptedKeyVersion cache Queue falls below the
+    low watermark, this cache queue will be scheduled for a refill
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.num.refill.threads</name>
+  <value>2</value>
+  <description>
+    Number of threads to use for refilling depleted EncryptedKeyVersion
+    cache Queues
+  </description>
+</property>
+<property>
+  <name>hadoop.security.kms.client.encrypted.key.cache.expiry</name>
+  <value>43200000</value>
+  <description>
+    Cache expiry time for a Key, after which the cache Queue for this
+    key will be dropped. Default = 12hrs
+  </description>
+</property>
+
+ <property>
+  <name>ipc.server.max.connections</name>
+  <value>0</value>
+  <description>The maximum number of concurrent connections a server is allowed
+    to accept. If this limit is exceeded, incoming connections will first fill
+    the listen queue and then may go to an OS-specific listen overflow queue.
+    The client may fail or timeout, but the server can avoid running out of file
+    descriptors using this feature. 0 means no limit.
+  </description>
+</property>
+
+
+  <!-- YARN registry -->
+
+  <property>
+    <description>
+      Is the registry enabled in the YARN Resource Manager?
+
+      If true, the YARN RM will, as needed.
+      create the user and system paths, and purge
+      service records when containers, application attempts
+      and applications complete.
+
+      If false, the paths must be created by other means,
+      and no automatic cleanup of service records will take place.
+    </description>
+    <name>hadoop.registry.rm.enabled</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <description>
+      The root zookeeper node for the registry
+    </description>
+    <name>hadoop.registry.zk.root</name>
+    <value>/registry</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper session timeout in milliseconds
+    </description>
+    <name>hadoop.registry.zk.session.timeout.ms</name>
+    <value>60000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper connection timeout in milliseconds
+    </description>
+    <name>hadoop.registry.zk.connection.timeout.ms</name>
+    <value>15000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper connection retry count before failing
+    </description>
+    <name>hadoop.registry.zk.retry.times</name>
+    <value>5</value>
+  </property>
+
+  <property>
+    <description>
+    </description>
+    <name>hadoop.registry.zk.retry.interval.ms</name>
+    <value>1000</value>
+  </property>
+
+  <property>
+    <description>
+      Zookeeper retry limit in milliseconds, during
+      exponential backoff.
+
+      This places a limit even
+      if the retry times and interval limit, combined
+      with the backoff policy, result in a long retry
+      period
+    </description>
+    <name>hadoop.registry.zk.retry.ceiling.ms</name>
+    <value>60000</value>
+  </property>
+
+  <property>
+    <description>
+      List of hostname:port pairs defining the
+      zookeeper quorum binding for the registry
+    </description>
+    <name>hadoop.registry.zk.quorum</name>
+    <value>localhost:2181</value>
+  </property>
+
+  <property>
+    <description>
+      Key to set if the registry is secure. Turning it on
+      changes the permissions policy from "open access"
+      to restrictions on kerberos with the option of
+      a user adding one or more auth key pairs down their
+      own tree.
+    </description>
+    <name>hadoop.registry.secure</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <description>
+      A comma separated list of Zookeeper ACL identifiers with
+      system access to the registry in a secure cluster.
+
+      These are given full access to all entries.
+
+      If there is an "@" at the end of a SASL entry it
+      instructs the registry client to append the default kerberos domain.
+    </description>
+    <name>hadoop.registry.system.acls</name>
+    <value>sasl:yarn@, sasl:mapred@, sasl:hdfs@</value>
+  </property>
+
+  <property>
+    <description>
+      The kerberos realm: used to set the realm of
+      system principals which do not declare their realm,
+      and any other accounts that need the value.
+
+      If empty, the default realm of the running process
+      is used.
+
+      If neither are known and the realm is needed, then the registry
+      service/client will fail.
+    </description>
+    <name>hadoop.registry.kerberos.realm</name>
+    <value></value>
+  </property>
+
+  <property>
+    <description>
+      Key to define the JAAS context. Used in secure
+      mode
+    </description>
+    <name>hadoop.registry.jaas.context</name>
+    <value>Client</value>
+  </property>
+
+  <property>
+    <description>
+      Enable hdfs shell commands to display warnings if (fs.defaultFS) property
+      is not set.
+    </description>
+    <name>hadoop.shell.missing.defaultFs.warning</name>
+    <value>false</value>
+  </property>
+
+  <property>
+    <name>hadoop.shell.safely.delete.limit.num.files</name>
+    <value>100</value>
+    <description>Used by -safely option of hadoop fs shell -rm command to avoid
+      accidental deletion of large directories. When enabled, the -rm command
+      requires confirmation if the number of files to be deleted is greater than
+      this limit.  The default limit is 100 files. The warning is disabled if
+      the limit is 0 or the -safely is not specified in -rm command.
+    </description>
+  </property>
+
+  <property>
+    <name>fs.client.htrace.sampler.classes</name>
+    <value></value>
+    <description>The class names of the HTrace Samplers to use for Hadoop
+      filesystem clients.
+    </description>
+  </property>
+
+  <property>
+    <name>hadoop.htrace.span.receiver.classes</name>
+    <value></value>
+    <description>The class names of the Span Receivers to use for Hadoop.
+    </description>
+  </property>
+
+  <property>
+    <name>hadoop.caller.context.enabled</name>
+    <value>false</value>
+    <description>When the feature is enabled, additional fields are written into
+      name-node audit log records for auditing coarse granularity operations.
+    </description>
+  </property>
+  <property>
+    <name>hadoop.caller.context.max.size</name>
+    <value>128</value>
+    <description>The maximum bytes a caller context string can have. If the
+      passed caller context is longer than this maximum bytes, client will
+      truncate it before sending to server. Note that the server may have a
+      different maximum size, and will truncate the caller context to the
+      maximum size it allows.
+    </description>
+  </property>
+  <property>
+    <name>hadoop.caller.context.signature.max.size</name>
+    <value>40</value>
+    <description>
+      The caller's signature (optional) is for offline validation. If the
+      signature exceeds the maximum allowed bytes in server, the caller context
+      will be abandoned, in which case the caller context will not be recorded
+      in audit logs.
+    </description>
+  </property>
+
+</configuration>
diff --git a/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-site.xml b/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-site.xml
index b875e97be2a..bddcdc82fd3 100644
--- a/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-site.xml
+++ b/flink-filesystems/flink-swift-fs-hadoop/src/test/resources/core-site.xml
@@ -1,2312 +1,31 @@
 <?xml version="1.0"?>
-<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
-
 <!--
-   Licensed to the Apache Software Foundation (ASF) under one or more
-   contributor license agreements.  See the NOTICE file distributed with
-   this work for additional information regarding copyright ownership.
-   The ASF licenses this file to You under the Apache License, Version 2.0
-   (the "License"); you may not use this file except in compliance with
-   the License.  You may obtain a copy of the License at
+  Licensed to the Apache Software Foundation (ASF) under one
+  or more contributor license agreements.  See the NOTICE file
+  distributed with this work for additional information
+  regarding copyright ownership.  The ASF licenses this file
+  to you under the Apache License, Version 2.0 (the
+  "License"); you may not use this file except in compliance
+  with the License.  You may obtain a copy of the License at
 
        http://www.apache.org/licenses/LICENSE-2.0
 
-   Unless required by applicable law or agreed to in writing, software
-   distributed under the License is distributed on an "AS IS" BASIS,
-   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-   See the License for the specific language governing permissions and
-   limitations under the License.
+  Unless required by applicable law or agreed to in writing, software
+  distributed under the License is distributed on an "AS IS" BASIS,
+  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+  See the License for the specific language governing permissions and
+  limitations under the License.
 -->
 
-<!-- Do not modify this file directly.  Instead, copy entries that you -->
-<!-- wish to modify from this file into core-site.xml and change them -->
-<!-- there.  If core-site.xml does not already exist, create it.      -->
+<!--
+A configuration as it may accidentally be in the classpath when Hadoop is
+in the classpath. Used for tests checking that the presence of such a config
+does not pollute the settings.
+-->
 
 <configuration>
-
-<!--- global properties -->
-
-<property>
-  <name>hadoop.common.configuration.version</name>
-  <value>0.23.0</value>
-  <description>version of this configuration file</description>
-</property>
-
-<property>
-  <name>hadoop.tmp.dir</name>
-  <value>/tmp/hadoop-${user.name}</value>
-  <description>A base for other temporary directories.</description>
-</property>
-
-<property>
-  <name>io.native.lib.available</name>
-  <value>true</value>
-  <description>Controls whether to use native libraries for bz2 and zlib
-    compression codecs or not. The property does not control any other native
-    libraries.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.filter.initializers</name>
-  <value>org.apache.hadoop.http.lib.StaticUserWebFilter</value>
-  <description>A comma separated list of class names. Each class in the list
-  must extend org.apache.hadoop.http.FilterInitializer. The corresponding
-  Filter will be initialized. Then, the Filter will be applied to all user
-  facing jsp and servlet web pages.  The ordering of the list defines the
-  ordering of the filters.</description>
-</property>
-
-<!--- security properties -->
-
-<property>
-  <name>hadoop.security.authorization</name>
-  <value>false</value>
-  <description>Is service-level authorization enabled?</description>
-</property>
-
-<property>
-  <name>hadoop.security.instrumentation.requires.admin</name>
-  <value>false</value>
-  <description>
-    Indicates if administrator ACLs are required to access
-    instrumentation servlets (JMX, METRICS, CONF, STACKS).
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.authentication</name>
-  <value>simple</value>
-  <description>Possible values are simple (no authentication), and kerberos
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping</name>
-  <value>org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback</value>
-  <description>
-    Class for user to group mapping (get groups for a given user) for ACL.
-    The default implementation,
-    org.apache.hadoop.security.JniBasedUnixGroupsMappingWithFallback,
-    will determine if the Java Native Interface (JNI) is available. If JNI is
-    available the implementation will use the API within hadoop to resolve a
-    list of groups for a user. If JNI is not available then the shell
-    implementation, ShellBasedUnixGroupsMapping, is used.  This implementation
-    shells out to the Linux/Unix environment with the
-    <code>bash -c groups</code> command to resolve a list of groups for a user.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.interface</name>
-  <description>
-    The name of the Network Interface from which the service should determine
-    its host name for Kerberos login. e.g. eth2. In a multi-homed environment,
-    the setting can be used to affect the _HOST subsitution in the service
-    Kerberos principal. If this configuration value is not set, the service
-    will use its default hostname as returned by
-    InetAddress.getLocalHost().getCanonicalHostName().
-
-    Most clusters will not require this setting.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.nameserver</name>
-  <description>
-    The host name or IP address of the name server (DNS) which a service Node
-    should use to determine its own host name for Kerberos Login. Requires
-    hadoop.security.dns.interface.
-
-    Most clusters will not require this setting.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.log-slow-lookups.enabled</name>
-  <value>false</value>
-  <description>
-    Time name lookups (via SecurityUtil) and log them if they exceed the
-    configured threshold.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.dns.log-slow-lookups.threshold.ms</name>
-  <value>1000</value>
-  <description>
-    If slow lookup logging is enabled, this threshold is used to decide if a
-    lookup is considered slow enough to be logged.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.secs</name>
-  <value>300</value>
-  <description>
-    This is the config controlling the validity of the entries in the cache
-    containing the user->group mapping. When this duration has expired,
-    then the implementation of the group mapping provider is invoked to get
-    the groups of the user and then cached back.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.negative-cache.secs</name>
-  <value>30</value>
-  <description>
-    Expiration time for entries in the the negative user-to-group mapping
-    caching, in seconds. This is useful when invalid users are retrying
-    frequently. It is suggested to set a small value for this expiration, since
-    a transient error in group lookup could temporarily lock out a legitimate
-    user.
-
-    Set this to zero or negative value to disable negative user-to-group caching.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.warn.after.ms</name>
-  <value>5000</value>
-  <description>
-    If looking up a single user to group takes longer than this amount of
-    milliseconds, we will log a warning message.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.background.reload</name>
-  <value>false</value>
-  <description>
-    Whether to reload expired user->group mappings using a background thread
-    pool. If set to true, a pool of
-    hadoop.security.groups.cache.background.reload.threads is created to
-    update the cache in the background.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.groups.cache.background.reload.threads</name>
-  <value>3</value>
-  <description>
-    Only relevant if hadoop.security.groups.cache.background.reload is true.
-    Controls the number of concurrent background user->group cache entry
-    refreshes. Pending refresh requests beyond this value are queued and
-    processed when a thread is free.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.connection.timeout.ms</name>
-  <value>60000</value>
-  <description>
-    This property is the connection timeout (in milliseconds) for LDAP
-    operations. If the LDAP provider doesn't establish a connection within the
-    specified period, it will abort the connect attempt. Non-positive value
-    means no LDAP connection timeout is specified in which case it waits for the
-    connection to establish until the underlying network times out.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.read.timeout.ms</name>
-  <value>60000</value>
-  <description>
-    This property is the read timeout (in milliseconds) for LDAP
-    operations. If the LDAP provider doesn't get a LDAP response within the
-    specified period, it will abort the read attempt. Non-positive value
-    means no read timeout is specified in which case it waits for the response
-    infinitely.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.url</name>
-  <value></value>
-  <description>
-    The URL of the LDAP server to use for resolving user groups when using
-    the LdapGroupsMapping user to group mapping.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl</name>
-  <value>false</value>
-  <description>
-    Whether or not to use SSL when connecting to the LDAP server.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl.keystore</name>
-  <value></value>
-  <description>
-    File path to the SSL keystore that contains the SSL certificate required
-    by the LDAP server.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.ssl.keystore.password.file</name>
-  <value></value>
-  <description>
-    The path to a file containing the password of the LDAP SSL keystore.
-
-    IMPORTANT: This file should be readable only by the Unix user running
-    the daemons.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.bind.user</name>
-  <value></value>
-  <description>
-    The distinguished name of the user to bind as when connecting to the LDAP
-    server. This may be left blank if the LDAP server supports anonymous binds.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.bind.password.file</name>
-  <value></value>
-  <description>
-    The path to a file containing the password of the bind user.
-
-    IMPORTANT: This file should be readable only by the Unix user running
-    the daemons.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.base</name>
-  <value></value>
-  <description>
-    The search base for the LDAP connection. This is a distinguished name,
-    and will typically be the root of the LDAP directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.filter.user</name>
-  <value>(&amp;(objectClass=user)(sAMAccountName={0}))</value>
-  <description>
-    An additional filter to use when searching for LDAP users. The default will
-    usually be appropriate for Active Directory installations. If connecting to
-    an LDAP server with a non-AD schema, this should be replaced with
-    (&amp;(objectClass=inetOrgPerson)(uid={0}). {0} is a special string used to
-    denote where the username fits into the filter.
-
-    If the LDAP server supports posixGroups, Hadoop can enable the feature by
-    setting the value of this property to "posixAccount" and the value of
-    the hadoop.security.group.mapping.ldap.search.filter.group property to
-    "posixGroup".
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.filter.group</name>
-  <value>(objectClass=group)</value>
-  <description>
-    An additional filter to use when searching for LDAP groups. This should be
-    changed when resolving groups against a non-Active Directory installation.
-
-    See the description of hadoop.security.group.mapping.ldap.search.filter.user
-    to enable posixGroups support.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.attr.member</name>
-  <value>member</value>
-  <description>
-    The attribute of the group object that identifies the users that are
-    members of the group. The default will usually be appropriate for
-    any LDAP installation.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.search.attr.group.name</name>
-  <value>cn</value>
-  <description>
-    The attribute of the group object that identifies the group name. The
-    default will usually be appropriate for all LDAP systems.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.posix.attr.uid.name</name>
-  <value>uidNumber</value>
-  <description>
-    The attribute of posixAccount to use when groups for membership.
-    Mostly useful for schemas wherein groups have memberUids that use an
-    attribute other than uidNumber.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.posix.attr.gid.name</name>
-  <value>gidNumber</value>
-  <description>
-    The attribute of posixAccount indicating the group id.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.ldap.directory.search.timeout</name>
-  <value>10000</value>
-  <description>
-    The attribute applied to the LDAP SearchControl properties to set a
-    maximum time limit when searching and awaiting a result.
-    Set to 0 if infinite wait period is desired.
-    Default is 10 seconds. Units in milliseconds.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.providers</name>
-  <value></value>
-  <description>
-    Comma separated of names of other providers to provide user to group
-    mapping. Used by CompositeGroupsMapping.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.group.mapping.providers.combined</name>
-  <value>true</value>
-  <description>
-    true or false to indicate whether groups from the providers are combined or
-    not. The default value is true. If true, then all the providers will be
-    tried to get groups and all the groups are combined to return as the final
-    results. Otherwise, providers are tried one by one in the configured list
-    order, and if any groups are retrieved from any provider, then the groups
-    will be returned without trying the left ones.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.service.user.name.key</name>
-  <value></value>
-  <description>
-    For those cases where the same RPC protocol is implemented by multiple
-    servers, this configuration is required for specifying the principal
-    name to use for the service when the client wishes to make an RPC call.
-  </description>
-</property>
-
-
-<property>
-    <name>hadoop.security.uid.cache.secs</name>
-    <value>14400</value>
-    <description>
-        This is the config controlling the validity of the entries in the cache
-        containing the userId to userName and groupId to groupName used by
-        NativeIO getFstat().
-    </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.protection</name>
-  <value>authentication</value>
-  <description>A comma-separated list of protection values for secured sasl
-      connections. Possible values are authentication, integrity and privacy.
-      authentication means authentication only and no integrity or privacy;
-      integrity implies authentication and integrity are enabled; and privacy
-      implies all of authentication, integrity and privacy are enabled.
-      hadoop.security.saslproperties.resolver.class can be used to override
-      the hadoop.rpc.protection for a connection at the server side.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.saslproperties.resolver.class</name>
-  <value></value>
-  <description>SaslPropertiesResolver used to resolve the QOP used for a
-      connection. If not specified, the full set of values specified in
-      hadoop.rpc.protection is used while determining the QOP used for the
-      connection. If a class is specified, then the QOP values returned by
-      the class will be used while determining the QOP used for the connection.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.sensitive-config-keys</name>
-  <value>secret$,password$,ssl.keystore.pass$,fs.s3.*[Ss]ecret.?[Kk]ey,fs.azure.account.key.*,dfs.webhdfs.oauth2.[a-z]+.token,hadoop.security.sensitive-config-keys</value>
-  <description>A comma-separated list of regular expressions to match against
-      configuration keys that should be redacted where appropriate, for
-      example, when logging modified properties during a reconfiguration,
-      private credentials should not be logged.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.workaround.non.threadsafe.getpwuid</name>
-  <value>true</value>
-  <description>Some operating systems or authentication modules are known to
-  have broken implementations of getpwuid_r and getpwgid_r, such that these
-  calls are not thread-safe. Symptoms of this problem include JVM crashes
-  with a stack trace inside these functions. If your system exhibits this
-  issue, enable this configuration parameter to include a lock around the
-  calls as a workaround.
-
-  An incomplete list of some systems known to have this issue is available
-  at http://wiki.apache.org/hadoop/KnownBrokenPwuidImplementations
-  </description>
-</property>
-
-<property>
-  <name>hadoop.kerberos.kinit.command</name>
-  <value>kinit</value>
-  <description>Used to periodically renew Kerberos credentials when provided
-  to Hadoop. The default setting assumes that kinit is in the PATH of users
-  running the Hadoop client. Change this to the absolute path to kinit if this
-  is not the case.
-  </description>
-</property>
-
-<property>
-    <name>hadoop.kerberos.min.seconds.before.relogin</name>
-    <value>60</value>
-    <description>The minimum time between relogin attempts for Kerberos, in
-    seconds.
-    </description>
-</property>
-
-<property>
-  <name>hadoop.security.auth_to_local</name>
-  <value></value>
-  <description>Maps kerberos principals to local user names</description>
-</property>
-
-<!-- i/o properties -->
-<property>
-  <name>io.file.buffer.size</name>
-  <value>4096</value>
-  <description>The size of buffer for use in sequence files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>io.bytes.per.checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  io.file.buffer.size.</description>
-</property>
-
-<property>
-  <name>io.skip.checksum.errors</name>
-  <value>false</value>
-  <description>If true, when a checksum error is encountered while
-  reading a sequence file, entries are skipped, instead of throwing an
-  exception.</description>
-</property>
-
-<property>
-  <name>io.compression.codecs</name>
-  <value></value>
-  <description>A comma-separated list of the compression codec classes that can
-  be used for compression/decompression. In addition to any classes specified
-  with this property (which take precedence), codec classes on the classpath
-  are discovered using a Java ServiceLoader.</description>
-</property>
-
-<property>
-  <name>io.compression.codec.bzip2.library</name>
-  <value>system-native</value>
-  <description>The native-code library to be used for compression and
-  decompression by the bzip2 codec.  This library could be specified
-  either by by name or the full pathname.  In the former case, the
-  library is located by the dynamic linker, usually searching the
-  directories specified in the environment variable LD_LIBRARY_PATH.
-
-  The value of "system-native" indicates that the default system
-  library should be used.  To indicate that the algorithm should
-  operate entirely in Java, specify "java-builtin".</description>
-</property>
-
-<property>
-  <name>io.serializations</name>
-  <value>org.apache.hadoop.io.serializer.WritableSerialization, org.apache.hadoop.io.serializer.avro.AvroSpecificSerialization, org.apache.hadoop.io.serializer.avro.AvroReflectSerialization</value>
-  <description>A list of serialization classes that can be used for
-  obtaining serializers and deserializers.</description>
-</property>
-
-<property>
-  <name>io.seqfile.local.dir</name>
-  <value>${hadoop.tmp.dir}/io/local</value>
-  <description>The local directory where sequence file stores intermediate
-  data files during merge.  May be a comma-separated list of
-  directories on different devices in order to spread disk i/o.
-  Directories that do not exist are ignored.
-  </description>
-</property>
-
-<property>
-  <name>io.map.index.skip</name>
-  <value>0</value>
-  <description>Number of index entries to skip between each entry.
-  Zero by default. Setting this to values larger than zero can
-  facilitate opening large MapFiles using less memory.</description>
-</property>
-
-<property>
-  <name>io.map.index.interval</name>
-  <value>128</value>
-  <description>
-    MapFile consist of two files - data file (tuples) and index file
-    (keys). For every io.map.index.interval records written in the
-    data file, an entry (record-key, data-file-position) is written
-    in the index file. This is to allow for doing binary search later
-    within the index file to look up records by their keys and get their
-    closest positions in the data file.
-  </description>
-</property>
-
-<!-- file system properties -->
-
-<property>
-  <name>fs.defaultFS</name>
-  <value>file:///</value>
-  <description>The name of the default file system.  A URI whose
-  scheme and authority determine the FileSystem implementation.  The
-  uri's scheme determines the config property (fs.SCHEME.impl) naming
-  the FileSystem implementation class.  The uri's authority is used to
-  determine the host, port, etc. for a filesystem.</description>
-</property>
-
-<property>
-  <name>fs.default.name</name>
-  <value>file:///</value>
-  <description>Deprecated. Use (fs.defaultFS) property
-  instead</description>
-</property>
-
-<property>
-  <name>fs.trash.interval</name>
-  <value>0</value>
-  <description>Number of minutes after which the checkpoint
-  gets deleted.  If zero, the trash feature is disabled.
-  This option may be configured both on the server and the
-  client. If trash is disabled server side then the client
-  side configuration is checked. If trash is enabled on the
-  server side then the value configured on the server is
-  used and the client configuration value is ignored.
-  </description>
-</property>
-
-<property>
-  <name>fs.trash.checkpoint.interval</name>
-  <value>0</value>
-  <description>Number of minutes between trash checkpoints.
-  Should be smaller or equal to fs.trash.interval. If zero,
-  the value is set to the value of fs.trash.interval.
-  Every time the checkpointer runs it creates a new checkpoint
-  out of current and removes checkpoints created more than
-  fs.trash.interval minutes ago.
-  </description>
-</property>
-
-<property>
-  <name>fs.protected.directories</name>
-  <value></value>
-  <description>A comma-separated list of directories which cannot
-    be deleted even by the superuser unless they are empty. This
-    setting can be used to guard important system directories
-    against accidental deletion due to administrator error.
-  </description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.file.impl</name>
-  <value>org.apache.hadoop.fs.local.LocalFs</value>
-  <description>The AbstractFileSystem for file: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.har.impl</name>
-  <value>org.apache.hadoop.fs.HarFs</value>
-  <description>The AbstractFileSystem for har: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.hdfs.impl</name>
-  <value>org.apache.hadoop.fs.Hdfs</value>
-  <description>The FileSystem for hdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.viewfs.impl</name>
-  <value>org.apache.hadoop.fs.viewfs.ViewFs</value>
-  <description>The AbstractFileSystem for view file system for viewfs: uris
-  (ie client side mount table:).</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.ftp.impl</name>
-  <value>org.apache.hadoop.fs.ftp.FtpFs</value>
-  <description>The FileSystem for Ftp: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.webhdfs.impl</name>
-  <value>org.apache.hadoop.fs.WebHdfs</value>
-  <description>The FileSystem for webhdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.swebhdfs.impl</name>
-  <value>org.apache.hadoop.fs.SWebHdfs</value>
-  <description>The FileSystem for swebhdfs: uris.</description>
-</property>
-
-<property>
-  <name>fs.ftp.host</name>
-  <value>0.0.0.0</value>
-  <description>FTP filesystem connects to this server</description>
-</property>
-
-<property>
-  <name>fs.ftp.host.port</name>
-  <value>21</value>
-  <description>
-    FTP filesystem connects to fs.ftp.host on this port
-  </description>
-</property>
-
-<property>
-  <name>fs.df.interval</name>
-  <value>60000</value>
-  <description>Disk usage statistics refresh interval in msec.</description>
-</property>
-
-<property>
-  <name>fs.du.interval</name>
-  <value>600000</value>
-  <description>File space usage statistics refresh interval in msec.</description>
-</property>
-
-<property>
-  <name>fs.s3.block.size</name>
-  <value>67108864</value>
-  <description>Block size to use when writing files to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3.buffer.dir</name>
-  <value>${hadoop.tmp.dir}/s3</value>
-  <description>Determines where on the local filesystem the s3:/s3n: filesystem
-  should store files before sending them to S3
-  (or after retrieving them from S3).
-  </description>
-</property>
-
-<property>
-  <name>fs.s3.maxRetries</name>
-  <value>4</value>
-  <description>The maximum number of retries for reading or writing files to S3,
-  before we signal failure to the application.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3.sleepTimeSeconds</name>
-  <value>10</value>
-  <description>The number of seconds to sleep between each S3 retry.
-  </description>
-</property>
-
-<property>
-  <name>fs.automatic.close</name>
-  <value>true</value>
-  <description>By default, FileSystem instances are automatically closed at program
-  exit using a JVM shutdown hook. Setting this property to false disables this
-  behavior. This is an advanced option that should only be used by server applications
-  requiring a more carefully orchestrated shutdown sequence.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.block.size</name>
-  <value>67108864</value>
-  <description>Block size to use when reading files using the native S3
-  filesystem (s3n: URIs).</description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.uploads.enabled</name>
-  <value>false</value>
-  <description>Setting this property to true enables multiple uploads to
-  native S3 filesystem. When uploading a file, it is split into blocks
-  if the size is larger than fs.s3n.multipart.uploads.block.size.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.uploads.block.size</name>
-  <value>67108864</value>
-  <description>The block size for multipart uploads to native S3 filesystem.
-  Default size is 64MB.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.multipart.copy.block.size</name>
-  <value>5368709120</value>
-  <description>The block size for multipart copy in native S3 filesystem.
-  Default size is 5GB.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3n.server-side-encryption-algorithm</name>
-  <value></value>
-  <description>Specify a server-side encryption algorithm for S3.
-  Unset by default, and the only other currently allowable value is AES256.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.access.key</name>
-  <description>AWS access key ID used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
-</property>
-
-<property>
-  <name>fs.s3a.secret.key</name>
-  <description>AWS secret key used by S3A file system. Omit for IAM role-based or provider-based authentication.</description>
-</property>
-
-<property>
-  <name>fs.s3a.aws.credentials.provider</name>
-  <description>
-	  Comma-separated class names of credential provider classes which implement
-	  com.amazonaws.auth.AWSCredentialsProvider.
-
-	  These are loaded and queried in sequence for a valid set of credentials.
-	  Each listed class must implement one of the following means of
-	  construction, which are attempted in order:
-	  1. a public constructor accepting java.net.URI and
-	  org.apache.hadoop.conf.Configuration,
-	  2. a public static method named getInstance that accepts no
-	  arguments and returns an instance of
-	  com.amazonaws.auth.AWSCredentialsProvider, or
-	  3. a public default constructor.
-
-	  Specifying
-	  org.apache.hadoop.fs.s3a.AnonymousAWSCredentialsProvider
-	  allows
-	  anonymous access to a publicly accessible S3 bucket without any credentials.
-	  Please note that allowing anonymous access to an S3 bucket compromises
-	  security and therefore is unsuitable for most use cases. It can be useful
-	  for accessing public data sets without requiring AWS credentials.
-
-	  If unspecified, then the default list of credential provider classes,
-	  queried in sequence, is:
-	  1. org.apache.hadoop.fs.s3a.BasicAWSCredentialsProvider:
-	  supports static
-	  configuration of AWS access key ID and secret access key. See also
-	  fs.s3a.access.key and fs.s3a.secret.key.
-	  2. com.amazonaws.auth.EnvironmentVariableCredentialsProvider: supports
-	  configuration of AWS access key ID and secret access key in
-	  environment variables named AWS_ACCESS_KEY_ID and
-	  AWS_SECRET_ACCESS_KEY, as documented in the AWS SDK.
-	  3.
-	  org.apache.hadoop.fs.s3a.SharedInstanceProfileCredentialsProvider:
-	  a shared instance of
-	  com.amazonaws.auth.InstanceProfileCredentialsProvider from the AWS
-	  SDK, which supports use of instance profile credentials if running
-	  in an EC2 VM. Using this shared instance potentially reduces load
-	  on the EC2 instance metadata service for multi-threaded
-	  applications.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.session.token</name>
-  <description>Session token, when using org.apache.hadoop.fs.s3a.TemporaryAWSCredentialsProvider
-    as one of the providers.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.security.credential.provider.path</name>
-  <value />
-  <description>
-    Optional comma separated list of credential providers, a list
-    which is prepended to that set in hadoop.security.credential.provider.path
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.maximum</name>
-  <value>15</value>
-  <description>Controls the maximum number of simultaneous connections to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.ssl.enabled</name>
-  <value>true</value>
-  <description>Enables or disables SSL connections to S3.</description>
-</property>
-
-<property>
-  <name>fs.s3a.endpoint</name>
-  <description>AWS S3 endpoint to connect to. An up-to-date list is
-    provided in the AWS Documentation: regions and endpoints. Without this
-    property, the standard region (s3.amazonaws.com) is assumed.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.path.style.access</name>
-  <value>false</value>
-  <description>Enable S3 path style access ie disabling the default virtual hosting behaviour.
-    Useful for S3A-compliant storage providers as it removes the need to set up DNS for virtual hosting.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.host</name>
-  <description>Hostname of the (optional) proxy server for S3 connections.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.port</name>
-  <description>Proxy server port. If this property is not set
-    but fs.s3a.proxy.host is, port 80 or 443 is assumed (consistent with
-    the value of fs.s3a.connection.ssl.enabled).</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.username</name>
-  <description>Username for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.password</name>
-  <description>Password for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.domain</name>
-  <description>Domain for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.proxy.workstation</name>
-  <description>Workstation for authenticating with proxy server.</description>
-</property>
-
-<property>
-  <name>fs.s3a.attempts.maximum</name>
-  <value>20</value>
-  <description>How many times we should retry commands on transient errors.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.establish.timeout</name>
-  <value>5000</value>
-  <description>Socket connection setup timeout in milliseconds.</description>
-</property>
-
-<property>
-  <name>fs.s3a.connection.timeout</name>
-  <value>200000</value>
-  <description>Socket connection timeout in milliseconds.</description>
-</property>
-
-<property>
-  <name>fs.s3a.socket.send.buffer</name>
-  <value>8192</value>
-  <description>Socket send buffer hint to amazon connector. Represented in bytes.</description>
-</property>
-
-<property>
-  <name>fs.s3a.socket.recv.buffer</name>
-  <value>8192</value>
-  <description>Socket receive buffer hint to amazon connector. Represented in bytes.</description>
-</property>
-
-<property>
-  <name>fs.s3a.paging.maximum</name>
-  <value>5000</value>
-  <description>How many keys to request from S3 when doing
-     directory listings at a time.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.max</name>
-  <value>10</value>
-  <description>The total number of threads available in the filesystem for data
-    uploads *or any other queued filesystem operation*.</description>
-</property>
-
-<property>
-  <name>fs.s3a.threads.keepalivetime</name>
-  <value>60</value>
-  <description>Number of seconds a thread can be idle before being
-    terminated.</description>
-</property>
-
-<property>
-  <name>fs.s3a.max.total.tasks</name>
-  <value>5</value>
-  <description>The number of operations which can be queued for execution</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.size</name>
-  <value>100M</value>
-  <description>How big (in bytes) to split upload or copy operations up into.
-    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.threshold</name>
-  <value>2147483647</value>
-  <description>How big (in bytes) to split upload or copy operations up into.
-    This also controls the partition size in renamed files, as rename() involves
-    copying the source file(s).
-    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.multiobjectdelete.enable</name>
-  <value>true</value>
-  <description>When enabled, multiple single-object delete requests are replaced by
-    a single 'delete multiple objects'-request, reducing the number of requests.
-    Beware: legacy S3-compatible object stores might not support this request.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.acl.default</name>
-  <description>Set a canned ACL for newly created and copied objects. Value may be Private,
-      PublicRead, PublicReadWrite, AuthenticatedRead, LogDeliveryWrite, BucketOwnerRead,
-      or BucketOwnerFullControl.</description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.purge</name>
-  <value>false</value>
-  <description>True if you want to purge existing multipart uploads that may not have been
-    completed/aborted correctly. The corresponding purge age is defined in
-    fs.s3a.multipart.purge.age.
-    If set, when the filesystem is instantiated then all outstanding uploads
-    older than the purge age will be terminated -across the entire bucket.
-    This will impact multipart uploads by other applications and users. so should
-    be used sparingly, with an age value chosen to stop failed uploads, without
-    breaking ongoing operations.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.multipart.purge.age</name>
-  <value>86400</value>
-  <description>Minimum age in seconds of multipart uploads to purge.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.server-side-encryption-algorithm</name>
-  <description>Specify a server-side encryption algorithm for s3a: file system.
-    Unset by default, and the only other currently allowable value is AES256.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.signing-algorithm</name>
-  <description>Override the default signing algorithm so legacy
-    implementations can still be used</description>
-</property>
-
-<property>
-  <name>fs.s3a.block.size</name>
-  <value>32M</value>
-  <description>Block size to use when reading files using s3a: file system.
-    A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.buffer.dir</name>
-  <value>${hadoop.tmp.dir}/s3a</value>
-  <description>Comma separated list of directories that will be used to buffer file
-    uploads to.</description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload</name>
-  <value>false</value>
-  <description>
-    Use the incremental block-based fast upload mechanism with
-    the buffering mechanism set in fs.s3a.fast.upload.buffer.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload.buffer</name>
-  <value>disk</value>
-  <description>
-    The buffering mechanism to use when using S3A fast upload
-    (fs.s3a.fast.upload=true). Values: disk, array, bytebuffer.
-    This configuration option has no effect if fs.s3a.fast.upload is false.
-
-    "disk" will use the directories listed in fs.s3a.buffer.dir as
-    the location(s) to save data prior to being uploaded.
-
-    "array" uses arrays in the JVM heap
-
-    "bytebuffer" uses off-heap memory within the JVM.
-
-    Both "array" and "bytebuffer" will consume memory in a single stream up to the number
-    of blocks set by:
-
-        fs.s3a.multipart.size * fs.s3a.fast.upload.active.blocks.
-
-    If using either of these mechanisms, keep this value low
-
-    The total number of threads performing work across all threads is set by
-    fs.s3a.threads.max, with fs.s3a.max.total.tasks values setting the number of queued
-    work items.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.fast.upload.active.blocks</name>
-  <value>4</value>
-  <description>
-    Maximum Number of blocks a single output stream can have
-    active (uploading, or queued to the central FileSystem
-    instance's pool of queued operations.
-
-    This stops a single stream overloading the shared thread pool.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.readahead.range</name>
-  <value>64K</value>
-  <description>Bytes to read ahead during a seek() before closing and
-  re-opening the S3 HTTP connection. This option will be overridden if
-  any call to setReadahead() is made to an open stream.
-  A suffix from the set {K,M,G,T,P} may be used to scale the numeric value.
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.user.agent.prefix</name>
-  <value></value>
-  <description>
-    Sets a custom value that will be prepended to the User-Agent header sent in
-    HTTP requests to the S3 back-end by S3AFileSystem.  The User-Agent header
-    always includes the Hadoop version number followed by a string generated by
-    the AWS SDK.  An example is "User-Agent: Hadoop 2.8.0, aws-sdk-java/1.10.6".
-    If this optional property is set, then its value is prepended to create a
-    customized User-Agent.  For example, if this configuration property was set
-    to "MyApp", then an example of the resulting User-Agent would be
-    "User-Agent: MyApp, Hadoop 2.8.0, aws-sdk-java/1.10.6".
-  </description>
-</property>
-
-<property>
-  <name>fs.s3a.impl</name>
-  <value>org.apache.hadoop.fs.s3a.S3AFileSystem</value>
-  <description>The implementation class of the S3A Filesystem</description>
-</property>
-
-<property>
-  <name>fs.AbstractFileSystem.s3a.impl</name>
-  <value>org.apache.hadoop.fs.s3a.S3A</value>
-  <description>The implementation class of the S3A AbstractFileSystem.</description>
-</property>
-
-<property>
-  <name>io.seqfile.compress.blocksize</name>
-  <value>1000000</value>
-  <description>The minimum block size for compression in block compressed
-          SequenceFiles.
-  </description>
-</property>
-
- <property>
-  <name>io.mapfile.bloom.size</name>
-  <value>1048576</value>
-  <description>The size of BloomFilter-s used in BloomMapFile. Each time this many
-  keys is appended the next BloomFilter will be created (inside a DynamicBloomFilter).
-  Larger values minimize the number of filters, which slightly increases the performance,
-  but may waste too much space if the total number of keys is usually much smaller
-  than this number.
-  </description>
-</property>
-
-<property>
-  <name>io.mapfile.bloom.error.rate</name>
-  <value>0.005</value>
-  <description>The rate of false positives in BloomFilter-s used in BloomMapFile.
-  As this value decreases, the size of BloomFilter-s increases exponentially. This
-  value is the probability of encountering false positives (default is 0.5%).
-  </description>
-</property>
-
-<property>
-  <name>hadoop.util.hash.type</name>
-  <value>murmur</value>
-  <description>The default implementation of Hash. Currently this can take one of the
-  two values: 'murmur' to select MurmurHash and 'jenkins' to select JenkinsHash.
-  </description>
-</property>
-
-
-<!-- ipc properties -->
-
-<property>
-  <name>ipc.client.idlethreshold</name>
-  <value>4000</value>
-  <description>Defines the threshold number of connections after which
-               connections will be inspected for idleness.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.kill.max</name>
-  <value>10</value>
-  <description>Defines the maximum number of clients to disconnect in one go.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connection.maxidletime</name>
-  <value>10000</value>
-  <description>The maximum time in msec after which a client will bring down the
-               connection to the server.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.max.retries</name>
-  <value>10</value>
-  <description>Indicates the number of retries a client will make to establish
-               a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.retry.interval</name>
-  <value>1000</value>
-  <description>Indicates the number of milliseconds a client will wait for
-    before retrying to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.timeout</name>
-  <value>20000</value>
-  <description>Indicates the number of milliseconds a client will wait for the
-               socket to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.connect.max.retries.on.timeouts</name>
-  <value>45</value>
-  <description>Indicates the number of retries a client will make on socket timeout
-               to establish a server connection.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.tcpnodelay</name>
-  <value>true</value>
-  <description>Use TCP_NODELAY flag to bypass Nagle's algorithm transmission delays.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.low-latency</name>
-  <value>false</value>
-  <description>Use low-latency QoS markers for IPC connections.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.ping</name>
-  <value>true</value>
-  <description>Send a ping to the server when timeout on reading the response,
-  if set to true. If no failure is detected, the client retries until at least
-  a byte is read or the time given by ipc.client.rpc-timeout.ms is passed.
-  </description>
-</property>
-
-<property>
-  <name>ipc.ping.interval</name>
-  <value>60000</value>
-  <description>Timeout on waiting response from server, in milliseconds.
-  The client will send ping when the interval is passed without receiving bytes,
-  if ipc.client.ping is set to true.
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.rpc-timeout.ms</name>
-  <value>0</value>
-  <description>Timeout on waiting response from server, in milliseconds.
-  If ipc.client.ping is set to true and this rpc-timeout is greater than
-  the value of ipc.ping.interval, the effective value of the rpc-timeout is
-  rounded up to multiple of ipc.ping.interval.
-  </description>
-</property>
-
-<property>
-  <name>ipc.server.listen.queue.size</name>
-  <value>128</value>
-  <description>Indicates the length of the listen queue for servers accepting
-               client connections.
-  </description>
-</property>
-
-<property>
-    <name>ipc.server.log.slow.rpc</name>
-    <value>false</value>
-    <description>This setting is useful to troubleshoot performance issues for
-     various services. If this value is set to true then we log requests that
-     fall into 99th percentile as well as increment RpcSlowCalls counter.
-    </description>
-</property>
-
-<property>
-  <name>ipc.maximum.data.length</name>
-  <value>67108864</value>
-  <description>This indicates the maximum IPC message length (bytes) that can be
-    accepted by the server. Messages larger than this value are rejected by the
-    immediately to avoid possible OOMs. This setting should rarely need to be
-    changed.
-  </description>
-</property>
-
-<property>
-  <name>ipc.maximum.response.length</name>
-  <value>134217728</value>
-  <description>This indicates the maximum IPC message length (bytes) that can be
-    accepted by the client. Messages larger than this value are rejected
-    immediately to avoid possible OOMs. This setting should rarely need to be
-    changed.  Set to 0 to disable.
-  </description>
-</property>
-
-<!-- Proxy Configuration -->
-
-<property>
-  <name>hadoop.security.impersonation.provider.class</name>
-  <value></value>
-  <description>A class which implements ImpersonationProvider interface, used to
-       authorize whether one user can impersonate a specific user.
-       If not specified, the DefaultImpersonationProvider will be used.
-       If a class is specified, then that class will be used to determine
-       the impersonation capability.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.socket.factory.class.default</name>
-  <value>org.apache.hadoop.net.StandardSocketFactory</value>
-  <description> Default SocketFactory to use. This parameter is expected to be
-    formatted as "package.FactoryClassName".
-  </description>
-</property>
-
-<property>
-  <name>hadoop.rpc.socket.factory.class.ClientProtocol</name>
-  <value></value>
-  <description> SocketFactory to use to connect to a DFS. If null or empty, use
-    hadoop.rpc.socket.class.default. This socket factory is also used by
-    DFSClient to create sockets to DataNodes.
-  </description>
-</property>
-
-
-
-<property>
-  <name>hadoop.socks.server</name>
-  <value></value>
-  <description> Address (host:port) of the SOCKS server to be used by the
-    SocksSocketFactory.
-  </description>
-</property>
-
-<!-- Topology Configuration -->
-<property>
-  <name>net.topology.node.switch.mapping.impl</name>
-  <value>org.apache.hadoop.net.ScriptBasedMapping</value>
-  <description> The default implementation of the DNSToSwitchMapping. It
-    invokes a script specified in net.topology.script.file.name to resolve
-    node names. If the value for net.topology.script.file.name is not set, the
-    default value of DEFAULT_RACK is returned for all node names.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.impl</name>
-  <value>org.apache.hadoop.net.NetworkTopology</value>
-  <description> The default implementation of NetworkTopology which is classic three layer one.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.script.file.name</name>
-  <value></value>
-  <description> The script name that should be invoked to resolve DNS names to
-    NetworkTopology names. Example: the script would take host.foo.bar as an
-    argument, and return /rack1 as the output.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.script.number.args</name>
-  <value>100</value>
-  <description> The max number of args that the script configured with
-    net.topology.script.file.name should be run with. Each arg is an
-    IP address.
-  </description>
-</property>
-
-<property>
-  <name>net.topology.table.file.name</name>
-  <value></value>
-  <description> The file name for a topology file, which is used when the
-    net.topology.node.switch.mapping.impl property is set to
-    org.apache.hadoop.net.TableMapping. The file format is a two column text
-    file, with columns separated by whitespace. The first column is a DNS or
-    IP address and the second column specifies the rack where the address maps.
-    If no entry corresponding to a host in the cluster is found, then
-    /default-rack is assumed.
-  </description>
-</property>
-
-<!-- Local file system -->
-<property>
-  <name>file.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>file.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  file.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>file.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>file.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>file.replication</name>
-  <value>1</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- s3 File System -->
-
-<property>
-  <name>s3.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>s3.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  s3.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>s3.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>s3.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>s3.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- s3native File System -->
-
-<property>
-  <name>s3native.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>s3native.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  s3native.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>s3native.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>s3native.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>s3native.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- FTP file system -->
-<property>
-  <name>ftp.stream-buffer-size</name>
-  <value>4096</value>
-  <description>The size of buffer to stream files.
-  The size of this buffer should probably be a multiple of hardware
-  page size (4096 on Intel x86), and it determines how much data is
-  buffered during read and write operations.</description>
-</property>
-
-<property>
-  <name>ftp.bytes-per-checksum</name>
-  <value>512</value>
-  <description>The number of bytes per checksum.  Must not be larger than
-  ftp.stream-buffer-size</description>
-</property>
-
-<property>
-  <name>ftp.client-write-packet-size</name>
-  <value>65536</value>
-  <description>Packet size for clients to write</description>
-</property>
-
-<property>
-  <name>ftp.blocksize</name>
-  <value>67108864</value>
-  <description>Block size</description>
-</property>
-
-<property>
-  <name>ftp.replication</name>
-  <value>3</value>
-  <description>Replication factor</description>
-</property>
-
-<!-- Tfile -->
-
-<property>
-  <name>tfile.io.chunk.size</name>
-  <value>1048576</value>
-  <description>
-    Value chunk size in bytes. Default  to
-    1MB. Values of the length less than the chunk size is
-    guaranteed to have known value length in read time (See also
-    TFile.Reader.Scanner.Entry.isValueLengthKnown()).
-  </description>
-</property>
-
-<property>
-  <name>tfile.fs.output.buffer.size</name>
-  <value>262144</value>
-  <description>
-    Buffer size used for FSDataOutputStream in bytes.
-  </description>
-</property>
-
-<property>
-  <name>tfile.fs.input.buffer.size</name>
-  <value>262144</value>
-  <description>
-    Buffer size used for FSDataInputStream in bytes.
-  </description>
-</property>
-
-<!-- HTTP web-consoles Authentication -->
-
-<property>
-  <name>hadoop.http.authentication.type</name>
-  <value>simple</value>
-  <description>
-    Defines authentication used for Oozie HTTP endpoint.
-    Supported values are: simple | kerberos | #AUTHENTICATION_HANDLER_CLASSNAME#
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.token.validity</name>
-  <value>36000</value>
-  <description>
-    Indicates how long (in seconds) an authentication token is valid before it has
-    to be renewed.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.signature.secret.file</name>
-  <value>${user.home}/hadoop-http-auth-signature-secret</value>
-  <description>
-    The signature secret for signing the authentication tokens.
-    The same secret should be used for JT/NN/DN/TT configurations.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.cookie.domain</name>
-  <value></value>
-  <description>
-    The domain to use for the HTTP cookie that stores the authentication token.
-    In order to authentiation to work correctly across all Hadoop nodes web-consoles
-    the domain must be correctly set.
-    IMPORTANT: when using IP addresses, browsers ignore cookies with domain settings.
-    For this setting to work properly all nodes in the cluster must be configured
-    to generate URLs with hostname.domain names on it.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.simple.anonymous.allowed</name>
-  <value>true</value>
-  <description>
-    Indicates if anonymous requests are allowed when using 'simple' authentication.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.kerberos.principal</name>
-  <value>HTTP/_HOST@LOCALHOST</value>
-  <description>
-    Indicates the Kerberos principal to be used for HTTP endpoint.
-    The principal MUST start with 'HTTP/' as per Kerberos HTTP SPNEGO specification.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.http.authentication.kerberos.keytab</name>
-  <value>${user.home}/hadoop.keytab</value>
-  <description>
-    Location of the keytab file with the credentials for the principal.
-    Referring to the same keytab file Oozie uses for its Kerberos credentials for Hadoop.
-  </description>
-</property>
-
-<!-- HTTP CORS support -->
-<property>
-  <description>Enable/disable the cross-origin (CORS) filter.</description>
-  <name>hadoop.http.cross-origin.enabled</name>
-  <value>false</value>
-</property>
-
-<property>
-  <description>Comma separated list of origins that are allowed for web
-    services needing cross-origin (CORS) support. Wildcards (*) and patterns
-    allowed</description>
-  <name>hadoop.http.cross-origin.allowed-origins</name>
-  <value>*</value>
-</property>
-
-<property>
-  <description>Comma separated list of methods that are allowed for web
-    services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.allowed-methods</name>
-  <value>GET,POST,HEAD</value>
-</property>
-
-<property>
-  <description>Comma separated list of headers that are allowed for web
-    services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.allowed-headers</name>
-  <value>X-Requested-With,Content-Type,Accept,Origin</value>
-</property>
-
-<property>
-  <description>The number of seconds a pre-flighted request can be cached
-    for web services needing cross-origin (CORS) support.</description>
-  <name>hadoop.http.cross-origin.max-age</name>
-  <value>1800</value>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.methods</name>
-  <value></value>
-  <description>
-    List of fencing methods to use for service fencing. May contain
-    builtin methods (eg shell and sshfence) or user-defined method.
-  </description>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.ssh.connect-timeout</name>
-  <value>30000</value>
-  <description>
-    SSH connection timeout, in milliseconds, to use with the builtin
-    sshfence fencer.
-  </description>
-</property>
-
-<property>
-  <name>dfs.ha.fencing.ssh.private-key-files</name>
-  <value></value>
-  <description>
-    The SSH private key files to use with the builtin sshfence fencer.
-  </description>
-</property>
-
-
-<!-- Static Web User Filter properties. -->
-<property>
-  <description>
-    The user name to filter as, on static web filters
-    while rendering content. An example use is the HDFS
-    web UI (user to be used for browsing files).
-  </description>
-  <name>hadoop.http.staticuser.user</name>
-  <value>dr.who</value>
-</property>
-
-<property>
-  <name>ha.zookeeper.quorum</name>
-  <description>
-    A list of ZooKeeper server addresses, separated by commas, that are
-    to be used by the ZKFailoverController in automatic failover.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.session-timeout.ms</name>
-  <value>5000</value>
-  <description>
-    The session timeout to use when the ZKFC connects to ZooKeeper.
-    Setting this value to a lower value implies that server crashes
-    will be detected more quickly, but risks triggering failover too
-    aggressively in the case of a transient error or network blip.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.parent-znode</name>
-  <value>/hadoop-ha</value>
-  <description>
-    The ZooKeeper znode under which the ZK failover controller stores
-    its information. Note that the nameservice ID is automatically
-    appended to this znode, so it is not normally necessary to
-    configure this, even in a federated environment.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.acl</name>
-  <value>world:anyone:rwcda</value>
-  <description>
-    A comma-separated list of ZooKeeper ACLs to apply to the znodes
-    used by automatic failover. These ACLs are specified in the same
-    format as used by the ZooKeeper CLI.
-
-    If the ACL itself contains secrets, you may instead specify a
-    path to a file, prefixed with the '@' symbol, and the value of
-    this configuration will be loaded from within.
-  </description>
-</property>
-
-<property>
-  <name>ha.zookeeper.auth</name>
-  <value></value>
-  <description>
-    A comma-separated list of ZooKeeper authentications to add when
-    connecting to ZooKeeper. These are specified in the same format
-    as used by the &quot;addauth&quot; command in the ZK CLI. It is
-    important that the authentications specified here are sufficient
-    to access znodes with the ACL specified in ha.zookeeper.acl.
-
-    If the auths contain secrets, you may instead specify a
-    path to a file, prefixed with the '@' symbol, and the value of
-    this configuration will be loaded from within.
-  </description>
-</property>
-
-<!-- SSLFactory configuration -->
-
-<property>
-  <name>hadoop.ssl.keystores.factory.class</name>
-  <value>org.apache.hadoop.security.ssl.FileBasedKeyStoresFactory</value>
-  <description>
-    The keystores factory to use for retrieving certificates.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.require.client.cert</name>
-  <value>false</value>
-  <description>Whether client certificates are required</description>
-</property>
-
-<property>
-  <name>hadoop.ssl.hostname.verifier</name>
-  <value>DEFAULT</value>
-  <description>
-    The hostname verifier to provide for HttpsURLConnections.
-    Valid values are: DEFAULT, STRICT, STRICT_I6, DEFAULT_AND_LOCALHOST and
-    ALLOW_ALL
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.server.conf</name>
-  <value>ssl-server.xml</value>
-  <description>
-    Resource file from which ssl server keystore information will be extracted.
-    This file is looked up in the classpath, typically it should be in Hadoop
-    conf/ directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.client.conf</name>
-  <value>ssl-client.xml</value>
-  <description>
-    Resource file from which ssl client keystore information will be extracted
-    This file is looked up in the classpath, typically it should be in Hadoop
-    conf/ directory.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.enabled</name>
-  <value>false</value>
-  <description>
-    Deprecated. Use dfs.http.policy and yarn.http.policy instead.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.ssl.enabled.protocols</name>
-  <value>TLSv1</value>
-  <description>
-    Protocols supported by the ssl.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.jetty.logs.serve.aliases</name>
-  <value>true</value>
-  <description>
-    Enable/Disable aliases serving from jetty
-  </description>
-</property>
-
-<property>
-  <name>fs.permissions.umask-mode</name>
-  <value>022</value>
-  <description>
-    The umask used when creating files and directories.
-    Can be in octal or in symbolic. Examples are:
-    "022" (octal for u=rwx,g=r-x,o=r-x in symbolic),
-    or "u=rwx,g=rwx,o=" (symbolic for 007 in octal).
-  </description>
-</property>
-
-<!-- ha properties -->
-
-<property>
-  <name>ha.health-monitor.connect-retry-interval.ms</name>
-  <value>1000</value>
-  <description>
-    How often to retry connecting to the service.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.check-interval.ms</name>
-  <value>1000</value>
-  <description>
-    How often to check the service.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.sleep-after-disconnect.ms</name>
-  <value>1000</value>
-  <description>
-    How long to sleep after an unexpected RPC error.
-  </description>
-</property>
-
-<property>
-  <name>ha.health-monitor.rpc-timeout.ms</name>
-  <value>45000</value>
-  <description>
-    Timeout for the actual monitorHealth() calls.
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.new-active.rpc-timeout.ms</name>
-  <value>60000</value>
-  <description>
-    Timeout that the FC waits for the new active to become active
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.graceful-fence.rpc-timeout.ms</name>
-  <value>5000</value>
-  <description>
-    Timeout that the FC waits for the old active to go to standby
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.graceful-fence.connection.retries</name>
-  <value>1</value>
-  <description>
-    FC connection retries for graceful fencing
-  </description>
-</property>
-
-<property>
-  <name>ha.failover-controller.cli-check.rpc-timeout.ms</name>
-  <value>20000</value>
-  <description>
-    Timeout that the CLI (manual) FC waits for monitorHealth, getServiceState
-  </description>
-</property>
-
-<property>
-  <name>ipc.client.fallback-to-simple-auth-allowed</name>
-  <value>false</value>
-  <description>
-    When a client is configured to attempt a secure connection, but attempts to
-    connect to an insecure server, that server may instruct the client to
-    switch to SASL SIMPLE (unsecure) authentication. This setting controls
-    whether or not the client will accept this instruction from the server.
-    When false (the default), the client will not allow the fallback to SIMPLE
-    authentication, and will abort the connection.
-  </description>
-</property>
-
-<property>
-  <name>fs.client.resolve.remote.symlinks</name>
-  <value>true</value>
-  <description>
-      Whether to resolve symlinks when accessing a remote Hadoop filesystem.
-      Setting this to false causes an exception to be thrown upon encountering
-      a symlink. This setting does not apply to local filesystems, which
-      automatically resolve local symlinks.
-  </description>
-</property>
-
-<property>
-  <name>nfs.exports.allowed.hosts</name>
-  <value>* rw</value>
-  <description>
-    By default, the export can be mounted by any client. The value string
-    contains machine name and access privilege, separated by whitespace
-    characters. The machine name format can be a single host, a Java regular
-    expression, or an IPv4 address. The access privilege uses rw or ro to
-    specify read/write or read-only access of the machines to exports. If the
-    access privilege is not provided, the default is read-only. Entries are separated by ";".
-    For example: "192.168.0.0/22 rw ; host.*\.example\.com ; host1.test.org ro;".
-    Only the NFS gateway needs to restart after this property is updated.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.user.group.static.mapping.overrides</name>
-  <value>dr.who=;</value>
-  <description>
-    Static mapping of user to groups. This will override the groups if
-    available in the system for the specified user. In otherwords, groups
-    look-up will not happen for these users, instead groups mapped in this
-    configuration will be used.
-    Mapping should be in this format.
-    user1=group1,group2;user2=;user3=group2;
-    Default, "dr.who=;" will consider "dr.who" as user without groups.
-  </description>
-</property>
-
-<property>
-  <name>rpc.metrics.quantile.enable</name>
-  <value>false</value>
-  <description>
-    Setting this property to true and rpc.metrics.percentiles.intervals
-    to a comma-separated list of the granularity in seconds, the
-    50/75/90/95/99th percentile latency for rpc queue/processing time in
-    milliseconds are added to rpc metrics.
-  </description>
-</property>
-
-<property>
-  <name>rpc.metrics.percentiles.intervals</name>
-  <value></value>
-  <description>
-    A comma-separated list of the granularity in seconds for the metrics which
-    describe the 50/75/90/95/99th percentile latency for rpc queue/processing
-    time. The metrics are outputted if rpc.metrics.quantile.enable is set to
-    true.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.codec.classes.EXAMPLECIPHERSUITE</name>
-  <value></value>
-  <description>
-    The prefix for a given crypto codec, contains a comma-separated
-    list of implementation classes for a given crypto codec (eg EXAMPLECIPHERSUITE).
-    The first implementation will be used if available, others are fallbacks.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.codec.classes.aes.ctr.nopadding</name>
-  <value>org.apache.hadoop.crypto.OpensslAesCtrCryptoCodec, org.apache.hadoop.crypto.JceAesCtrCryptoCodec</value>
-  <description>
-    Comma-separated list of crypto codec implementations for AES/CTR/NoPadding.
-    The first implementation will be used if available, others are fallbacks.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.cipher.suite</name>
-  <value>AES/CTR/NoPadding</value>
-  <description>
-    Cipher suite for crypto codec.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.jce.provider</name>
-  <value></value>
-  <description>
-    The JCE provider name used in CryptoCodec.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.crypto.buffer.size</name>
-  <value>8192</value>
-  <description>
-    The buffer size used by CryptoInputStream and CryptoOutputStream.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.java.secure.random.algorithm</name>
-  <value>SHA1PRNG</value>
-  <description>
-    The java secure random algorithm.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.secure.random.impl</name>
-  <value></value>
-  <description>
-    Implementation of secure random.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.random.device.file.path</name>
-  <value>/dev/urandom</value>
-  <description>
-    OS security random device file path.
-  </description>
-</property>
-
-<property>
-  <name>hadoop.security.key.provider.path</name>
-  <description>
-    The KeyProvider to use when managing zone keys, and interacting with
-    encryption keys when reading and writing to an encryption zone.
-  </description>
-</property>
-
-<property>
-  <name>fs.har.impl.disable.cache</name>
-  <value>true</value>
-  <description>Don't cache 'har' filesystem instances.</description>
-</property>
-
-<!--- KMSClientProvider configurations -->
-<property>
-  <name>hadoop.security.kms.client.authentication.retry-count</name>
-  <value>1</value>
-  <description>
-    Number of time to retry connecting to KMS on authentication failure
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.size</name>
-  <value>500</value>
-  <description>
-    Size of the EncryptedKeyVersion cache Queue for each key
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.low-watermark</name>
-  <value>0.3f</value>
-  <description>
-    If size of the EncryptedKeyVersion cache Queue falls below the
-    low watermark, this cache queue will be scheduled for a refill
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.num.refill.threads</name>
-  <value>2</value>
-  <description>
-    Number of threads to use for refilling depleted EncryptedKeyVersion
-    cache Queues
-  </description>
-</property>
-<property>
-  <name>hadoop.security.kms.client.encrypted.key.cache.expiry</name>
-  <value>43200000</value>
-  <description>
-    Cache expiry time for a Key, after which the cache Queue for this
-    key will be dropped. Default = 12hrs
-  </description>
-</property>
-
- <property>
-  <name>ipc.server.max.connections</name>
-  <value>0</value>
-  <description>The maximum number of concurrent connections a server is allowed
-    to accept. If this limit is exceeded, incoming connections will first fill
-    the listen queue and then may go to an OS-specific listen overflow queue.
-    The client may fail or timeout, but the server can avoid running out of file
-    descriptors using this feature. 0 means no limit.
-  </description>
-</property>
-
-
-  <!-- YARN registry -->
-
-  <property>
-    <description>
-      Is the registry enabled in the YARN Resource Manager?
-
-      If true, the YARN RM will, as needed.
-      create the user and system paths, and purge
-      service records when containers, application attempts
-      and applications complete.
-
-      If false, the paths must be created by other means,
-      and no automatic cleanup of service records will take place.
-    </description>
-    <name>hadoop.registry.rm.enabled</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <description>
-      The root zookeeper node for the registry
-    </description>
-    <name>hadoop.registry.zk.root</name>
-    <value>/registry</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper session timeout in milliseconds
-    </description>
-    <name>hadoop.registry.zk.session.timeout.ms</name>
-    <value>60000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper connection timeout in milliseconds
-    </description>
-    <name>hadoop.registry.zk.connection.timeout.ms</name>
-    <value>15000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper connection retry count before failing
-    </description>
-    <name>hadoop.registry.zk.retry.times</name>
-    <value>5</value>
-  </property>
-
-  <property>
-    <description>
-    </description>
-    <name>hadoop.registry.zk.retry.interval.ms</name>
-    <value>1000</value>
-  </property>
-
-  <property>
-    <description>
-      Zookeeper retry limit in milliseconds, during
-      exponential backoff.
-
-      This places a limit even
-      if the retry times and interval limit, combined
-      with the backoff policy, result in a long retry
-      period
-    </description>
-    <name>hadoop.registry.zk.retry.ceiling.ms</name>
-    <value>60000</value>
-  </property>
-
-  <property>
-    <description>
-      List of hostname:port pairs defining the
-      zookeeper quorum binding for the registry
-    </description>
-    <name>hadoop.registry.zk.quorum</name>
-    <value>localhost:2181</value>
-  </property>
-
-  <property>
-    <description>
-      Key to set if the registry is secure. Turning it on
-      changes the permissions policy from "open access"
-      to restrictions on kerberos with the option of
-      a user adding one or more auth key pairs down their
-      own tree.
-    </description>
-    <name>hadoop.registry.secure</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <description>
-      A comma separated list of Zookeeper ACL identifiers with
-      system access to the registry in a secure cluster.
-
-      These are given full access to all entries.
-
-      If there is an "@" at the end of a SASL entry it
-      instructs the registry client to append the default kerberos domain.
-    </description>
-    <name>hadoop.registry.system.acls</name>
-    <value>sasl:yarn@, sasl:mapred@, sasl:hdfs@</value>
-  </property>
-
-  <property>
-    <description>
-      The kerberos realm: used to set the realm of
-      system principals which do not declare their realm,
-      and any other accounts that need the value.
-
-      If empty, the default realm of the running process
-      is used.
-
-      If neither are known and the realm is needed, then the registry
-      service/client will fail.
-    </description>
-    <name>hadoop.registry.kerberos.realm</name>
-    <value></value>
-  </property>
-
-  <property>
-    <description>
-      Key to define the JAAS context. Used in secure
-      mode
-    </description>
-    <name>hadoop.registry.jaas.context</name>
-    <value>Client</value>
-  </property>
-
-  <property>
-    <description>
-      Enable hdfs shell commands to display warnings if (fs.defaultFS) property
-      is not set.
-    </description>
-    <name>hadoop.shell.missing.defaultFs.warning</name>
-    <value>false</value>
-  </property>
-
-  <property>
-    <name>hadoop.shell.safely.delete.limit.num.files</name>
-    <value>100</value>
-    <description>Used by -safely option of hadoop fs shell -rm command to avoid
-      accidental deletion of large directories. When enabled, the -rm command
-      requires confirmation if the number of files to be deleted is greater than
-      this limit.  The default limit is 100 files. The warning is disabled if
-      the limit is 0 or the -safely is not specified in -rm command.
-    </description>
-  </property>
-
-  <property>
-    <name>fs.client.htrace.sampler.classes</name>
-    <value></value>
-    <description>The class names of the HTrace Samplers to use for Hadoop
-      filesystem clients.
-    </description>
-  </property>
-
-  <property>
-    <name>hadoop.htrace.span.receiver.classes</name>
-    <value></value>
-    <description>The class names of the Span Receivers to use for Hadoop.
-    </description>
-  </property>
-
-  <property>
-    <name>hadoop.caller.context.enabled</name>
-    <value>false</value>
-    <description>When the feature is enabled, additional fields are written into
-      name-node audit log records for auditing coarse granularity operations.
-    </description>
-  </property>
-  <property>
-    <name>hadoop.caller.context.max.size</name>
-    <value>128</value>
-    <description>The maximum bytes a caller context string can have. If the
-      passed caller context is longer than this maximum bytes, client will
-      truncate it before sending to server. Note that the server may have a
-      different maximum size, and will truncate the caller context to the
-      maximum size it allows.
-    </description>
-  </property>
-  <property>
-    <name>hadoop.caller.context.signature.max.size</name>
-    <value>40</value>
-    <description>
-      The caller's signature (optional) is for offline validation. If the
-      signature exceeds the maximum allowed bytes in server, the caller context
-      will be abandoned, in which case the caller context will not be recorded
-      in audit logs.
-    </description>
-  </property>
-
+	<property>
+		<name>hadoop.security.group.mapping</name>
+		<value>this.does.not.exist.class</value>
+	</property>
 </configuration>


 

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