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From nc...@apache.org
Subject ambari git commit: AMBARI-14134. Restarting Hive MetaStore failed during upgrade - schemaTool failed - Failed to load driver (ncole)
Date Tue, 01 Dec 2015 22:06:18 GMT
Repository: ambari
Updated Branches:
  refs/heads/branch-2.1 bafdd65af -> c5ea8c823


AMBARI-14134. Restarting Hive MetaStore failed during upgrade - schemaTool failed -  Failed
to load driver (ncole)


Project: http://git-wip-us.apache.org/repos/asf/ambari/repo
Commit: http://git-wip-us.apache.org/repos/asf/ambari/commit/c5ea8c82
Tree: http://git-wip-us.apache.org/repos/asf/ambari/tree/c5ea8c82
Diff: http://git-wip-us.apache.org/repos/asf/ambari/diff/c5ea8c82

Branch: refs/heads/branch-2.1
Commit: c5ea8c8234d3b7890f5890aa1dfcd08fecac79d2
Parents: bafdd65
Author: Nate Cole <ncole@hortonworks.com>
Authored: Tue Dec 1 12:11:54 2015 -0500
Committer: Nate Cole <ncole@hortonworks.com>
Committed: Tue Dec 1 17:04:24 2015 -0500

----------------------------------------------------------------------
 .../package/scripts/hive_metastore.py           |   2 +-
 .../stacks/2.1/HIVE/test_hive_metastore.py      |  66 ++++
 .../2.1/configs/hive-metastore-upgrade.json     | 356 +++++++++++++++++++
 3 files changed, 423 insertions(+), 1 deletion(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/ambari/blob/c5ea8c82/ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_metastore.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_metastore.py
b/ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_metastore.py
index d26e36f..e347e25 100644
--- a/ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_metastore.py
+++ b/ambari-server/src/main/resources/common-services/HIVE/0.12.0.2.0/package/scripts/hive_metastore.py
@@ -193,7 +193,7 @@ class HiveMetastoreDefault(HiveMetastore):
 
     # ensure that the JDBC drive is present for the schema tool; if it's not
     # present, then download it first
-    if params.hive_jdbc_driver in params.hive_jdbc_drivers_list and params.hive_use_existing_db:
+    if params.hive_jdbc_driver in params.hive_jdbc_drivers_list:
       target_directory = format("/usr/hdp/{version}/hive/lib")
 
       # download it if it does not exist

http://git-wip-us.apache.org/repos/asf/ambari/blob/c5ea8c82/ambari-server/src/test/python/stacks/2.1/HIVE/test_hive_metastore.py
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/python/stacks/2.1/HIVE/test_hive_metastore.py b/ambari-server/src/test/python/stacks/2.1/HIVE/test_hive_metastore.py
index ae89bcd..53ba809 100644
--- a/ambari-server/src/test/python/stacks/2.1/HIVE/test_hive_metastore.py
+++ b/ambari-server/src/test/python/stacks/2.1/HIVE/test_hive_metastore.py
@@ -682,6 +682,72 @@ class TestHiveMetastore(RMFTestCase):
   @patch("os.path.exists")
   @patch("resource_management.core.shell.call")
   @patch("resource_management.libraries.functions.get_hdp_version")
+  def test_upgrade_metastore_schema_using_new_db(self, get_hdp_version_mock, call_mock, os_path_exists_mock):
+    get_hdp_version_mock.return_value = '2.3.0.0-1234'
+
+    def side_effect(path):
+      if path == "/usr/hdp/2.2.7.0-1234/hive-server2/lib/mysql-connector-java.jar":
+        return True
+      if path == "/usr/hdp/current/hive-client/lib/mysql-connector-java.jar":
+        return True
+      if ".j2" in path:
+        return True
+      return False
+
+    os_path_exists_mock.side_effect = side_effect
+
+    config_file = self.get_src_folder()+"/test/python/stacks/2.1/configs/hive-metastore-upgrade.json"
+
+    with open(config_file, "r") as f:
+      json_content = json.load(f)
+
+    mocks_dict = {}
+    self.executeScript(self.COMMON_SERVICES_PACKAGE_DIR + "/scripts/hive_metastore.py",
+      classname = "HiveMetastore",
+      command = "upgrade_schema",
+      config_dict = json_content,
+      hdp_stack_version = self.STACK_VERSION,
+      target = RMFTestCase.TARGET_COMMON_SERVICES,
+      call_mocks = [(0, None, ''), (0, None)],
+      mocks_dict = mocks_dict)
+
+
+    # we don't care about configure here - the strings are different anyway because this
+    # is an upgrade, so just pop those resources off of the call stack
+    self.assertResourceCalledIgnoreEarlier('Directory', '/var/lib/hive', owner = 'hive',
group = 'hadoop',
+      mode = 0755, recursive = True, cd_access = 'a')
+
+    self.assertResourceCalled('Execute', ('cp',
+     '--remove-destination',
+     '/usr/share/java/mysql-connector-java.jar',
+     '/usr/hdp/current/hive-metastore/lib/mysql-connector-java.jar'),
+        path = ['/bin', '/usr/bin/'],
+        sudo = True,
+    )
+    self.assertResourceCalled('File', '/usr/hdp/current/hive-metastore/lib/mysql-connector-java.jar',
+        mode = 0644,
+    )
+    self.assertResourceCalled('Execute', ('cp',
+     '/usr/hdp/2.3.0.0-2557/hive/lib/mysql-connector-java.jar',
+     '/usr/hdp/2.3.2.0-2950/hive/lib'),
+        path = ['/bin', '/usr/bin/'],
+        sudo = True,
+    )
+    self.assertResourceCalled('File', '/usr/hdp/2.3.2.0-2950/hive/lib/mysql-connector-java.jar',
+        mode = 0644,
+    )
+    self.assertResourceCalled('Execute', '/usr/hdp/2.3.2.0-2950/hive/bin/schematool -dbType
mysql -upgradeSchema',
+        logoutput = True,
+        environment = {'HIVE_CONF_DIR': '/usr/hdp/current/hive-metastore/conf/conf.server'},
+        tries = 1,
+        user = 'hive',
+    )
+
+    self.assertNoMoreResources()
+
+  @patch("os.path.exists")
+  @patch("resource_management.core.shell.call")
+  @patch("resource_management.libraries.functions.get_hdp_version")
   def test_upgrade_sqla_metastore_schema_with_jdbc_download(self, get_hdp_version_mock, call_mock,
os_path_exists_mock):
 
     get_hdp_version_mock.return_value = '2.3.0.0-1234'

http://git-wip-us.apache.org/repos/asf/ambari/blob/c5ea8c82/ambari-server/src/test/python/stacks/2.1/configs/hive-metastore-upgrade.json
----------------------------------------------------------------------
diff --git a/ambari-server/src/test/python/stacks/2.1/configs/hive-metastore-upgrade.json
b/ambari-server/src/test/python/stacks/2.1/configs/hive-metastore-upgrade.json
new file mode 100644
index 0000000..7829f05
--- /dev/null
+++ b/ambari-server/src/test/python/stacks/2.1/configs/hive-metastore-upgrade.json
@@ -0,0 +1,356 @@
+{
+    "roleCommand": "CUSTOM_COMMAND", 
+    "forceRefreshConfigTagsBeforeExecution": [
+        "*"
+    ], 
+    "configuration_attributes": {
+    }, 
+    "commandParams": {
+        "upgrade_direction": "upgrade", 
+        "service_package_folder": "common-services/HIVE/0.12.0.2.0/package", 
+        "script": "scripts/hive_metastore.py", 
+        "hooks_folder": "HDP/2.0.6/hooks", 
+        "restart_type": "nonrolling_upgrade", 
+        "version": "2.3.2.0-2950", 
+        "forceRefreshConfigTagsBeforeExecution": "*", 
+        "original_stack": "HDP-2.3", 
+        "command_timeout": "1200", 
+        "target_stack": "HDP-2.3", 
+        "script_type": "PYTHON"
+    }, 
+    "stageId": 36, 
+    "kerberosCommandParams": [], 
+    "clusterName": "c1", 
+    "hostname": "c6402.ambari.apache.org", 
+    "hostLevelParams": {
+        "stack_name": "HDP", 
+        "group_list": "[\"hadoop\",\"users\"]", 
+        "host_sys_prepped": "false", 
+        "ambari_db_rca_username": "mapred", 
+        "current_version": "2.3.0.0-2557", 
+        "jdk_name": "jdk-7u45-linux-x64.tar.gz", 
+        "mysql_jdbc_url": "http://10.0.0.13:8080/resources//mysql-connector-java.jar", 
+        "repo_info": "[{\"baseUrl\":\"http://repos.ambari.apache.org/hdp/HDP-2.3.0.0-2557\",\"osType\":\"redhat6\",\"repoId\":\"HDP-2.3\",\"repoName\":\"HDP\",\"defaultBaseUrl\":\"http://public-repo-1.hortonworks.com/HDP/centos6/2.x/updates/2.3.0.0\",\"latestBaseUrl\":\"http://s3.amazonaws.com/dev.hortonworks.com/HDP/centos6/2.x/BUILDS/2.3.4.0-3360\",\"baseSaved\":true},{\"baseUrl\":\"http://repos.ambari.apache.org/hdp/HDP-UTILS-1.1.0.20\",\"osType\":\"redhat6\",\"repoId\":\"HDP-UTILS-1.1.0.20\",\"repoName\":\"HDP-UTILS\",\"defaultBaseUrl\":\"http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.20/repos/centos6\",\"latestBaseUrl\":\"http://public-repo-1.hortonworks.com/HDP-UTILS-1.1.0.20/repos/centos6\",\"baseSaved\":true}]",

+        "custom_command": "RESTART", 
+        "stack_version": "2.3", 
+        "ambari_db_rca_driver": "org.postgresql.Driver", 
+        "java_home": "/usr/jdk64/jdk1.7.0_45", 
+        "jdk_location": "http://10.0.0.13:8080/resources/", 
+        "ambari_db_rca_url": "jdbc:postgresql://10.0.0.13/ambarirca", 
+        "java_version": "7", 
+        "oracle_jdbc_url": "http://10.0.0.13:8080/resources//ojdbc6.jar", 
+        "agentCacheDir": "/var/lib/ambari-agent/cache", 
+        "ambari_db_rca_password": "mapred", 
+        "jce_name": "UnlimitedJCEPolicyJDK7.zip", 
+        "db_name": "ambari", 
+        "db_driver_filename": "mysql-connector-java.jar", 
+        "user_list": "[\"hive\",\"mapred\",\"ambari-qa\",\"zookeeper\",\"tez\",\"hdfs\",\"yarn\",\"hcat\"]"
+    }, 
+    "commandType": "EXECUTION_COMMAND", 
+    "roleParams": {
+        "component_category": "MASTER"
+    }, 
+    "serviceName": "HIVE", 
+    "role": "HIVE_METASTORE", 
+    "requestId": 9, 
+    "taskId": 176, 
+    "public_hostname": "c6402.ambari.apache.org", 
+    "configurations": {
+        "webhcat-env": {
+            "content": "\n# The file containing the running pid\nPID_FILE={{webhcat_pid_file}}\n\nTEMPLETON_LOG_DIR={{templeton_log_dir}}/\n\n\nWEBHCAT_LOG_DIR={{templeton_log_dir}}/\n\n#
The console error log\nERROR_LOG={{templeton_log_dir}}/webhcat-console-error.log\n\n# The
console log\nCONSOLE_LOG={{templeton_log_dir}}/webhcat-console.log\n\n#TEMPLETON_JAR=templeton_jar_name\n\n#HADOOP_PREFIX=hadoop_prefix\n\n#HCAT_PREFIX=hive_prefix\n\n#
Set HADOOP_HOME to point to a specific hadoop install directory\nexport HADOOP_HOME=${HADOOP_HOME:-{{hadoop_home}}}"
+        }, 
+        "hcat-env": {
+            "content": "\n      # Licensed to the Apache Software Foundation (ASF) under
one\n      # or more contributor license agreements. See the NOTICE file\n      # distributed
with this work for additional information\n      # regarding copyright ownership. The ASF
licenses this file\n      # to you under the Apache License, Version 2.0 (the\n      # \"License\");
you may not use this file except in compliance\n      # with the License. You may obtain a
copy of the License at\n      #\n      # http://www.apache.org/licenses/LICENSE-2.0\n    
 #\n      # Unless required by applicable law or agreed to in writing, software\n      # distributed
under the License is distributed on an \"AS IS\" BASIS,\n      # WITHOUT WARRANTIES OR CONDITIONS
OF ANY KIND, either express or implied.\n      # See the License for the specific language
governing permissions and\n      # limitations under the License.\n\n      JAVA_HOME={{java64_home}}\n
     HCAT_PID_DIR={{hcat_pid_dir}}/\n      HCAT_L
 OG_DIR={{hcat_log_dir}}/\n      HCAT_CONF_DIR={{hcat_conf_dir}}\n      HADOOP_HOME=${HADOOP_HOME:-{{hadoop_home}}}\n
     #DBROOT is the path where the connector jars are downloaded\n      DBROOT={{hcat_dbroot}}\n
     USER={{hcat_user}}\n      METASTORE_PORT={{hive_metastore_port}}"
+        }, 
+        "hive-env": {
+            "hive_user_nproc_limit": "16000", 
+            "hive_pid_dir": "/var/run/hive", 
+            "hcat_log_dir": "/var/log/webhcat", 
+            "hive.client.heapsize": "1024", 
+            "hive_ambari_database": "MySQL", 
+            "content": "\n if [ \"$SERVICE\" = \"cli\" ]; then\n   if [ -z \"$DEBUG\" ];
then\n     export HADOOP_OPTS=\"$HADOOP_OPTS -XX:NewRatio=12 -XX:MaxHeapFreeRatio=40 -XX:MinHeapFreeRatio=15
-XX:+UseNUMA -XX:+UseParallelGC -XX:-UseGCOverheadLimit\"\n   else\n     export HADOOP_OPTS=\"$HADOOP_OPTS
-XX:NewRatio=12 -XX:MaxHeapFreeRatio=40 -XX:MinHeapFreeRatio=15 -XX:-UseGCOverheadLimit\"\n
  fi\n fi\n\n# The heap size of the jvm stared by hive shell script can be controlled via:\n\nif
[ \"$SERVICE\" = \"metastore\" ]; then\n  export HADOOP_HEAPSIZE={{hive_metastore_heapsize}}
# Setting for HiveMetastore\nelse\n  export HADOOP_HEAPSIZE={{hive_heapsize}} # Setting for
HiveServer2 and Client\nfi\n\nexport HADOOP_CLIENT_OPTS=\"$HADOOP_CLIENT_OPTS  -Xmx${HADOOP_HEAPSIZE}m\"\n\n#
Larger heap size may be required when running queries over large number of files or partitions.\n#
By default hive shell scripts use a heap size of 256 (MB).  Larger heap size would also be\n#
appropriate for
  hive server (hwi etc).\n\n\n# Set HADOOP_HOME to point to a specific hadoop install directory\nHADOOP_HOME=${HADOOP_HOME:-{{hadoop_home}}}\n\n#
Hive Configuration Directory can be controlled by:\nexport HIVE_CONF_DIR={{hive_config_dir}}\n\n#
Folder containing extra libraries required for hive compilation/execution can be controlled
by:\nif [ \"${HIVE_AUX_JARS_PATH}\" != \"\" ]; then\n  if [ -f \"${HIVE_AUX_JARS_PATH}\" ];
then\n    export HIVE_AUX_JARS_PATH=${HIVE_AUX_JARS_PATH}\n  elif [ -d \"/usr/hdp/current/hive-webhcat/share/hcatalog\"
]; then\n    export HIVE_AUX_JARS_PATH=/usr/hdp/current/hive-webhcat/share/hcatalog/hive-hcatalog-core.jar\n
 fi\nelif [ -d \"/usr/hdp/current/hive-webhcat/share/hcatalog\" ]; then\n  export HIVE_AUX_JARS_PATH=/usr/hdp/current/hive-webhcat/share/hcatalog/hive-hcatalog-core.jar\nfi\n\nexport
METASTORE_PORT={{hive_metastore_port}}\n\n{% if sqla_db_used or lib_dir_available %}\nexport
LD_LIBRARY_PATH=\"$LD_LIBRARY_PATH:{{jdbc_libs_dir}}\"\nexport JA
 VA_LIBRARY_PATH=\"$JAVA_LIBRARY_PATH:{{jdbc_libs_dir}}\"\n{% endif %}", 
+            "hive_timeline_logging_enabled": "true", 
+            "hive_user_nofile_limit": "32000", 
+            "hive.metastore.heapsize": "512", 
+            "hive_database_name": "hive", 
+            "hive_database_type": "mysql", 
+            "hive_user": "hive", 
+            "hive_database": "New MySQL Database", 
+            "hive.heapsize": "703", 
+            "hcat_pid_dir": "/var/run/webhcat", 
+            "cost_based_optimizer": "On", 
+            "webhcat_user": "hcat", 
+            "hive_security_authorization": "None", 
+            "hive_exec_orc_storage_strategy": "SPEED", 
+            "hive_log_dir": "/var/log/hive", 
+            "hive_txn_acid": "off", 
+            "hcat_user": "hcat"
+        }, 
+        "hive-site": {
+            "javax.jdo.option.ConnectionDriverName": "com.mysql.jdbc.Driver", 
+            "hive.fetch.task.aggr": "false", 
+            "hive.execution.engine": "tez", 
+            "hive.tez.java.opts": "-server -Djava.net.preferIPv4Stack=true -XX:NewRatio=8
-XX:+UseNUMA -XX:+UseParallelGC -XX:+PrintGCDetails -verbose:gc -XX:+PrintGCTimeStamps", 
+            "hive.server2.table.type.mapping": "CLASSIC", 
+            "hive.tez.min.partition.factor": "0.25", 
+            "hive.tez.cpu.vcores": "-1", 
+            "hive.conf.restricted.list": "hive.security.authenticator.manager,hive.security.authorization.manager,hive.users.in.admin.role",

+            "hive.stats.dbclass": "fs", 
+            "hive.tez.auto.reducer.parallelism": "true", 
+            "hive.auto.convert.sortmerge.join.to.mapjoin": "false", 
+            "hive.server2.thrift.http.path": "cliservice", 
+            "hive.exec.scratchdir": "/tmp/hive", 
+            "hive.exec.post.hooks": "org.apache.hadoop.hive.ql.hooks.ATSHook", 
+            "hive.zookeeper.namespace": "hive_zookeeper_namespace", 
+            "hive.cbo.enable": "true", 
+            "hive.optimize.index.filter": "true", 
+            "hive.optimize.bucketmapjoin": "true", 
+            "hive.mapjoin.bucket.cache.size": "10000", 
+            "hive.limit.optimize.enable": "true", 
+            "hive.fetch.task.conversion.threshold": "1073741824", 
+            "hive.exec.max.dynamic.partitions": "5000", 
+            "hive.metastore.sasl.enabled": "false", 
+            "hive.txn.manager": "org.apache.hadoop.hive.ql.lockmgr.DummyTxnManager", 
+            "hive.optimize.constant.propagation": "true", 
+            "hive.exec.submitviachild": "false", 
+            "hive.metastore.kerberos.principal": "hive/_HOST@EXAMPLE.COM", 
+            "hive.txn.max.open.batch": "1000", 
+            "hive.exec.compress.output": "false", 
+            "hive.merge.size.per.task": "256000000", 
+            "hive.security.authenticator.manager": "org.apache.hadoop.hive.ql.security.ProxyUserAuthenticator",

+            "hive.merge.mapfiles": "true", 
+            "hive.compactor.initiator.on": "false", 
+            "hive.mapjoin.optimized.hashtable": "true", 
+            "hive.default.fileformat": "TextFile", 
+            "hive.optimize.metadataonly": "true", 
+            "hive.tez.dynamic.partition.pruning.max.event.size": "1048576", 
+            "hive.server2.thrift.max.worker.threads": "500", 
+            "hive.optimize.sort.dynamic.partition": "false", 
+            "hive.server2.thrift.http.port": "10001", 
+            "hive.metastore.pre.event.listeners": "org.apache.hadoop.hive.ql.security.authorization.AuthorizationPreEventListener",

+            "hive.metastore.failure.retries": "24", 
+            "hive.merge.smallfiles.avgsize": "16000000", 
+            "hive.tez.max.partition.factor": "2.0", 
+            "hive.server2.transport.mode": "binary", 
+            "hive.tez.container.size": "170", 
+            "hive.optimize.bucketmapjoin.sortedmerge": "false", 
+            "hive.compactor.worker.threads": "0", 
+            "hive.security.metastore.authorization.manager": "org.apache.hadoop.hive.ql.security.authorization.StorageBasedAuthorizationProvider",

+            "hive.server2.thrift.port": "10000", 
+            "hive.map.aggr.hash.percentmemory": "0.5", 
+            "hive.user.install.directory": "/user/", 
+            "datanucleus.autoCreateSchema": "false", 
+            "hive.compute.query.using.stats": "true", 
+            "hive.merge.rcfile.block.level": "true", 
+            "hive.map.aggr": "true", 
+            "hive.metastore.client.connect.retry.delay": "5s", 
+            "hive.security.authorization.enabled": "false", 
+            "hive.map.aggr.hash.force.flush.memory.threshold": "0.9", 
+            "hive.server2.tez.default.queues": "default", 
+            "hive.prewarm.enabled": "false", 
+            "hive.exec.reducers.max": "1009", 
+            "hive.metastore.kerberos.keytab.file": "/etc/security/keytabs/hive.service.keytab",

+            "hive.stats.fetch.partition.stats": "true", 
+            "hive.cli.print.header": "false", 
+            "hive.server2.thrift.sasl.qop": "auth", 
+            "hive.server2.support.dynamic.service.discovery": "true", 
+            "hive.fetch.task.conversion": "more", 
+            "hive.exec.reducers.bytes.per.reducer": "67108864", 
+            "hive.compactor.abortedtxn.threshold": "1000", 
+            "hive.tez.dynamic.partition.pruning.max.data.size": "104857600", 
+            "hive.metastore.warehouse.dir": "/apps/hive/warehouse", 
+            "hive.metastore.client.socket.timeout": "1800s", 
+            "hive.server2.zookeeper.namespace": "hiveserver2", 
+            "hive.prewarm.numcontainers": "3", 
+            "hive.vectorized.groupby.flush.percent": "0.1", 
+            "hive.server2.enable.doAs": "true", 
+            "hive.security.metastore.authenticator.manager": "org.apache.hadoop.hive.ql.security.HadoopDefaultMetastoreAuthenticator",

+            "hive.server2.use.SSL": "false", 
+            "hive.enforce.bucketing": "false", 
+            "hive.server2.authentication.spnego.keytab": "HTTP/_HOST@EXAMPLE.COM", 
+            "hive.mapred.reduce.tasks.speculative.execution": "false", 
+            "javax.jdo.option.ConnectionURL": "jdbc:mysql://c6402.ambari.apache.org/hive?createDatabaseIfNotExist=true",

+            "hive.exec.dynamic.partition.mode": "strict", 
+            "hive.auto.convert.sortmerge.join": "true", 
+            "hive.zookeeper.quorum": "c6403.ambari.apache.org:2181,c6401.ambari.apache.org:2181,c6402.ambari.apache.org:2181",

+            "hive.security.authorization.manager": "org.apache.hadoop.hive.ql.security.authorization.plugin.sqlstd.SQLStdConfOnlyAuthorizerFactory",

+            "hive.exec.parallel": "false", 
+            "hive.stats.fetch.column.stats": "true", 
+            "hive.enforce.sorting": "true", 
+            "hive.txn.timeout": "300", 
+            "hive.metastore.authorization.storage.checks": "false", 
+            "hive.exec.orc.default.stripe.size": "67108864", 
+            "hive.metastore.cache.pinobjtypes": "Table,Database,Type,FieldSchema,Order",

+            "hive.server2.logging.operation.enabled": "true", 
+            "hive.merge.tezfiles": "false", 
+            "hive.exec.parallel.thread.number": "8", 
+            "hive.auto.convert.join.noconditionaltask": "true", 
+            "hive.server2.authentication.spnego.principal": "/etc/security/keytabs/spnego.service.keytab",

+            "hive.compactor.worker.timeout": "86400L", 
+            "hive.optimize.null.scan": "true", 
+            "hive.server2.tez.initialize.default.sessions": "false", 
+            "datanucleus.cache.level2.type": "none", 
+            "hive.stats.autogather": "true", 
+            "hive.auto.convert.join": "true", 
+            "hive.exec.submit.local.task.via.child": "true", 
+            "hive.merge.mapredfiles": "false", 
+            "hive.vectorized.execution.enabled": "true", 
+            "hive.cluster.delegation.token.store.zookeeper.connectString": "c6403.ambari.apache.org:2181,c6401.ambari.apache.org:2181,c6402.ambari.apache.org:2181",

+            "hive.vectorized.execution.reduce.enabled": "false", 
+            "hive.optimize.reducededuplication": "true", 
+            "hive.server2.tez.sessions.per.default.queue": "1", 
+            "hive.exec.max.dynamic.partitions.pernode": "2000", 
+            "hive.tez.dynamic.partition.pruning": "true", 
+            "datanucleus.fixedDatastore": "true", 
+            "hive.limit.pushdown.memory.usage": "0.04", 
+            "hive.security.metastore.authorization.auth.reads": "true", 
+            "ambari.hive.db.schema.name": "hive", 
+            "hive.vectorized.groupby.checkinterval": "4096", 
+            "hive.smbjoin.cache.rows": "10000", 
+            "hive.metastore.execute.setugi": "true", 
+            "hive.zookeeper.client.port": "2181", 
+            "hive.vectorized.groupby.maxentries": "100000", 
+            "hive.cluster.delegation.token.store.class": "org.apache.hadoop.hive.thrift.ZooKeeperTokenStore",

+            "hive.cluster.delegation.token.store.zookeeper.znode": "/hive/cluster/delegation",

+            "javax.jdo.option.ConnectionPassword": "password", 
+            "hive.exec.max.created.files": "100000", 
+            "hive.default.fileformat.managed": "TextFile", 
+            "hive.map.aggr.hash.min.reduction": "0.5", 
+            "hive.orc.splits.include.file.footer": "false", 
+            "hive.exec.pre.hooks": "org.apache.hadoop.hive.ql.hooks.ATSHook", 
+            "hive.merge.orcfile.stripe.level": "true", 
+            "hive.exec.orc.default.compress": "ZLIB", 
+            "hive.server2.allow.user.substitution": "true", 
+            "hive.exec.orc.encoding.strategy": "SPEED", 
+            "hive.metastore.connect.retries": "24", 
+            "hive.metastore.server.max.threads": "100000", 
+            "hive.exec.orc.compression.strategy": "SPEED", 
+            "hive.optimize.reducededuplication.min.reducer": "4", 
+            "hive.metastore.uris": "thrift://c6402.ambari.apache.org:9083", 
+            "hive.enforce.sortmergebucketmapjoin": "true", 
+            "hive.auto.convert.join.noconditionaltask.size": "59419306", 
+            "javax.jdo.option.ConnectionUserName": "hive", 
+            "hive.tez.log.level": "INFO", 
+            "hive.compactor.delta.num.threshold": "10", 
+            "hive.exec.dynamic.partition": "true", 
+            "hive.server2.authentication": "NONE", 
+            "hive.exec.compress.intermediate": "false", 
+            "hive.orc.compute.splits.num.threads": "10", 
+            "hive.tez.smb.number.waves": "0.5", 
+            "hive.convert.join.bucket.mapjoin.tez": "false", 
+            "hive.metastore.schema.verification": "true", 
+            "hive.server2.logging.operation.log.location": "/tmp/hive/operation_logs", 
+            "hive.tez.input.format": "org.apache.hadoop.hive.ql.io.HiveInputFormat", 
+            "hive.exec.failure.hooks": "org.apache.hadoop.hive.ql.hooks.ATSHook", 
+            "hive.support.concurrency": "false", 
+            "hive.compactor.check.interval": "300L", 
+            "hive.compactor.delta.pct.threshold": "0.1f"
+        }, 
+        "hive-exec-log4j": {
+            "content": "\n# Licensed to the Apache Software Foundation (ASF) under one\n#
or more contributor license agreements.  See the NOTICE file\n# distributed with this work
for additional information\n# regarding copyright ownership.  The ASF licenses this file\n#
to you under the Apache License, Version 2.0 (the\n# \"License\"); you may not use this file
except in compliance\n# with the License.  You may obtain a copy of the License at\n#\n# 
   http://www.apache.org/licenses/LICENSE-2.0\n#\n# Unless required by applicable law or agreed
to in writing, software\n# distributed under the License is distributed on an \"AS IS\" BASIS,\n#
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n# See the License
for the specific language governing permissions and\n# limitations under the License.\n\n#
Define some default values that can be overridden by system properties\n\nhive.log.threshold=ALL\nhive.root.logger=INFO,FA\nhive.log.dir=${java.io.tmpdir}/${user.na
 me}\nhive.query.id=hadoop\nhive.log.file=${hive.query.id}.log\n\n# Define the root logger
to the system property \"hadoop.root.logger\".\nlog4j.rootLogger=${hive.root.logger}, EventCounter\n\n#
Logging Threshold\nlog4j.threshhold=${hive.log.threshold}\n\n#\n# File Appender\n#\n\nlog4j.appender.FA=org.apache.log4j.FileAppender\nlog4j.appender.FA.File=${hive.log.dir}/${hive.log.file}\nlog4j.appender.FA.layout=org.apache.log4j.PatternLayout\n\n#
Pattern format: Date LogLevel LoggerName LogMessage\n#log4j.appender.DRFA.layout.ConversionPattern=%d{ISO8601}
%p %c: %m%n\n# Debugging Pattern format\nlog4j.appender.FA.layout.ConversionPattern=%d{ISO8601}
%-5p %c{2} (%F:%M(%L)) - %m%n\n\n\n#\n# console\n# Add \"console\" to rootlogger above if
you want to use this\n#\n\nlog4j.appender.console=org.apache.log4j.ConsoleAppender\nlog4j.appender.console.target=System.err\nlog4j.appender.console.layout=org.apache.log4j.PatternLayout\nlog4j.appender.console.layout.ConversionPattern=%d{yy/MM/dd
HH:mm
 :ss} %p %c{2}: %m%n\n\n#custom logging levels\n#log4j.logger.xxx=DEBUG\n\n#\n# Event Counter
Appender\n# Sends counts of logging messages at different severity levels to Hadoop Metrics.\n#\nlog4j.appender.EventCounter=org.apache.hadoop.hive.shims.HiveEventCounter\n\n\nlog4j.category.DataNucleus=ERROR,FA\nlog4j.category.Datastore=ERROR,FA\nlog4j.category.Datastore.Schema=ERROR,FA\nlog4j.category.JPOX.Datastore=ERROR,FA\nlog4j.category.JPOX.Plugin=ERROR,FA\nlog4j.category.JPOX.MetaData=ERROR,FA\nlog4j.category.JPOX.Query=ERROR,FA\nlog4j.category.JPOX.General=ERROR,FA\nlog4j.category.JPOX.Enhancer=ERROR,FA\n\n\n#
Silence useless ZK logs\nlog4j.logger.org.apache.zookeeper.server.NIOServerCnxn=WARN,FA\nlog4j.logger.org.apache.zookeeper.ClientCnxnSocketNIO=WARN,FA"
+        }, 
+        "hadoop-env": {
+            "namenode_opt_maxnewsize": "128m", 
+            "hadoop_root_logger": "INFO,RFA", 
+            "hdfs_log_dir_prefix": "/var/log/hadoop", 
+            "keyserver_host": " ", 
+            "namenode_heapsize": "1024m", 
+            "hadoop_pid_dir_prefix": "/var/run/hadoop", 
+            "proxyuser_group": "users", 
+            "namenode_opt_maxpermsize": "256m", 
+            "content": "\n# Set Hadoop-specific environment variables here.\n\n# The only
required environment variable is JAVA_HOME.  All others are\n# optional.  When running a distributed
configuration it is best to\n# set JAVA_HOME in this file, so that it is correctly defined
on\n# remote nodes.\n\n# The java implementation to use.  Required.\nexport JAVA_HOME={{java_home}}\nexport
HADOOP_HOME_WARN_SUPPRESS=1\n\n# Hadoop home directory\nexport HADOOP_HOME=${HADOOP_HOME:-{{hadoop_home}}}\n\n#
Hadoop Configuration Directory\n\n{# this is different for HDP1 #}\n# Path to jsvc required
by secure HDP 2.0 datanode\nexport JSVC_HOME={{jsvc_path}}\n\n\n# The maximum amount of heap
to use, in MB. Default is 1000.\nexport HADOOP_HEAPSIZE=\"{{hadoop_heapsize}}\"\n\nexport
HADOOP_NAMENODE_INIT_HEAPSIZE=\"-Xms{{namenode_heapsize}}\"\n\n# Extra Java runtime options.
 Empty by default.\nexport HADOOP_OPTS=\"-Djava.net.preferIPv4Stack=true ${HADOOP_OPTS}\"\n\n#
Command specific options appende
 d to HADOOP_OPTS when specified\nHADOOP_JOBTRACKER_OPTS=\"-server -XX:ParallelGCThreads=8
-XX:+UseConcMarkSweepGC -XX:ErrorFile={{hdfs_log_dir_prefix}}/$USER/hs_err_pid%p.log -XX:NewSize={{jtnode_opt_newsize}}
-XX:MaxNewSize={{jtnode_opt_maxnewsize}} -Xloggc:{{hdfs_log_dir_prefix}}/$USER/gc.log-`date
+'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps
-Xmx{{jtnode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dmapred.audit.logger=INFO,MRAUDIT
-Dhadoop.mapreduce.jobsummary.logger=INFO,JSA ${HADOOP_JOBTRACKER_OPTS}\"\n\nHADOOP_TASKTRACKER_OPTS=\"-server
-Xmx{{ttnode_heapsize}} -Dhadoop.security.logger=ERROR,console -Dmapred.audit.logger=ERROR,console
${HADOOP_TASKTRACKER_OPTS}\"\n\n{% if java_version < 8 %}\nSHARED_HADOOP_NAMENODE_OPTS=\"-server
-XX:ParallelGCThreads=8 -XX:+UseConcMarkSweepGC -XX:ErrorFile={{hdfs_log_dir_prefix}}/$USER/hs_err_pid%p.log
-XX:NewSize={{namenode_opt_newsize}} -XX:MaxNewSize={{namenode_opt_maxnewsize}} -XX:PermSiz
 e={{namenode_opt_permsize}} -XX:MaxPermSize={{namenode_opt_maxpermsize}} -Xloggc:{{hdfs_log_dir_prefix}}/$USER/gc.log-`date
+'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps
-Xms{{namenode_heapsize}} -Xmx{{namenode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT\"\nexport
HADOOP_NAMENODE_OPTS=\"${SHARED_HADOOP_NAMENODE_OPTS} -XX:OnOutOfMemoryError=\\\"/usr/hdp/current/hadoop-hdfs-namenode/bin/kill-name-node\\\"
-Dorg.mortbay.jetty.Request.maxFormContentSize=-1 ${HADOOP_NAMENODE_OPTS}\"\nexport HADOOP_DATANODE_OPTS=\"-server
-XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log
-XX:NewSize=200m -XX:MaxNewSize=200m -XX:PermSize=128m -XX:MaxPermSize=256m -Xloggc:/var/log/hadoop/$USER/gc.log-`date
+'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps
-Xms{{dtnode_heapsize}} -Xmx{{dtnode_heapsize}} -Dhadoop.security.logger=INFO
 ,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT ${HADOOP_DATANODE_OPTS}\"\n\nexport HADOOP_SECONDARYNAMENODE_OPTS=\"${SHARED_HADOOP_NAMENODE_OPTS}
-XX:OnOutOfMemoryError=\\\"/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node\\\"
${HADOOP_SECONDARYNAMENODE_OPTS}\"\n\n# The following applies to multiple commands (fs, dfs,
fsck, distcp etc)\nexport HADOOP_CLIENT_OPTS=\"-Xmx${HADOOP_HEAPSIZE}m -XX:MaxPermSize=512m
$HADOOP_CLIENT_OPTS\"\n\n{% else %}\nSHARED_HADOOP_NAMENODE_OPTS=\"-server -XX:ParallelGCThreads=8
-XX:+UseConcMarkSweepGC -XX:ErrorFile={{hdfs_log_dir_prefix}}/$USER/hs_err_pid%p.log -XX:NewSize={{namenode_opt_newsize}}
-XX:MaxNewSize={{namenode_opt_maxnewsize}} -Xloggc:{{hdfs_log_dir_prefix}}/$USER/gc.log-`date
+'%Y%m%d%H%M'` -verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps
-Xms{{namenode_heapsize}} -Xmx{{namenode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT\"\nexport
HADOOP_NAMENODE_OPTS=\"
 ${SHARED_HADOOP_NAMENODE_OPTS} -XX:OnOutOfMemoryError=\\\"/usr/hdp/current/hadoop-hdfs-namenode/bin/kill-name-node\\\"
-Dorg.mortbay.jetty.Request.maxFormContentSize=-1 ${HADOOP_NAMENODE_OPTS}\"\nexport HADOOP_DATANODE_OPTS=\"-server
-XX:ParallelGCThreads=4 -XX:+UseConcMarkSweepGC -XX:ErrorFile=/var/log/hadoop/$USER/hs_err_pid%p.log
-XX:NewSize=200m -XX:MaxNewSize=200m -Xloggc:/var/log/hadoop/$USER/gc.log-`date +'%Y%m%d%H%M'`
-verbose:gc -XX:+PrintGCDetails -XX:+PrintGCTimeStamps -XX:+PrintGCDateStamps -Xms{{dtnode_heapsize}}
-Xmx{{dtnode_heapsize}} -Dhadoop.security.logger=INFO,DRFAS -Dhdfs.audit.logger=INFO,DRFAAUDIT
${HADOOP_DATANODE_OPTS}\"\n\nexport HADOOP_SECONDARYNAMENODE_OPTS=\"${SHARED_HADOOP_NAMENODE_OPTS}
-XX:OnOutOfMemoryError=\\\"/usr/hdp/current/hadoop-hdfs-secondarynamenode/bin/kill-secondary-name-node\\\"
${HADOOP_SECONDARYNAMENODE_OPTS}\"\n\n# The following applies to multiple commands (fs, dfs,
fsck, distcp etc)\nexport HADOOP_CLIENT_OPTS=\"-Xmx${HADOOP_HEAPSIZE}m 
 $HADOOP_CLIENT_OPTS\"\n{% endif %}\n\nHADOOP_NFS3_OPTS=\"-Xmx{{nfsgateway_heapsize}}m -Dhadoop.security.logger=ERROR,DRFAS
${HADOOP_NFS3_OPTS}\"\nHADOOP_BALANCER_OPTS=\"-server -Xmx{{hadoop_heapsize}}m ${HADOOP_BALANCER_OPTS}\"\n\n\n#
On secure datanodes, user to run the datanode as after dropping privileges\nexport HADOOP_SECURE_DN_USER=${HADOOP_SECURE_DN_USER:-{{hadoop_secure_dn_user}}}\n\n#
Extra ssh options.  Empty by default.\nexport HADOOP_SSH_OPTS=\"-o ConnectTimeout=5 -o SendEnv=HADOOP_CONF_DIR\"\n\n#
Where log files are stored.  $HADOOP_HOME/logs by default.\nexport HADOOP_LOG_DIR={{hdfs_log_dir_prefix}}/$USER\n\n#
History server logs\nexport HADOOP_MAPRED_LOG_DIR={{mapred_log_dir_prefix}}/$USER\n\n# Where
log files are stored in the secure data environment.\nexport HADOOP_SECURE_DN_LOG_DIR={{hdfs_log_dir_prefix}}/$HADOOP_SECURE_DN_USER\n\n#
File naming remote slave hosts.  $HADOOP_HOME/conf/slaves by default.\n# export HADOOP_SLAVES=${HADOOP_HOME}/conf/slaves\n\n#
host:pat
 h where hadoop code should be rsync'd from.  Unset by default.\n# export HADOOP_MASTER=master:/home/$USER/src/hadoop\n\n#
Seconds to sleep between slave commands.  Unset by default.  This\n# can be useful in large
clusters, where, e.g., slave rsyncs can\n# otherwise arrive faster than the master can service
them.\n# export HADOOP_SLAVE_SLEEP=0.1\n\n# The directory where pid files are stored. /tmp
by default.\nexport HADOOP_PID_DIR={{hadoop_pid_dir_prefix}}/$USER\nexport HADOOP_SECURE_DN_PID_DIR={{hadoop_pid_dir_prefix}}/$HADOOP_SECURE_DN_USER\n\n#
History server pid\nexport HADOOP_MAPRED_PID_DIR={{mapred_pid_dir_prefix}}/$USER\n\nYARN_RESOURCEMANAGER_OPTS=\"-Dyarn.server.resourcemanager.appsummary.logger=INFO,RMSUMMARY\"\n\n#
A string representing this instance of hadoop. $USER by default.\nexport HADOOP_IDENT_STRING=$USER\n\n#
The scheduling priority for daemon processes.  See 'man nice'.\n\n# export HADOOP_NICENESS=10\n\n#
Add database libraries\nJAVA_JDBC_LIBS=\"\"\nif [ -d \"/us
 r/share/java\" ]; then\n  for jarFile in `ls /usr/share/java | grep -E \"(mysql|ojdbc|postgresql|sqljdbc)\"
2>/dev/null`\n  do\n    JAVA_JDBC_LIBS=${JAVA_JDBC_LIBS}:$jarFile\n  done\nfi\n\n# Add
libraries to the hadoop classpath - some may not need a colon as they already include it\nexport
HADOOP_CLASSPATH=${HADOOP_CLASSPATH}${JAVA_JDBC_LIBS}\n\n# Setting path to hdfs command line\nexport
HADOOP_LIBEXEC_DIR={{hadoop_libexec_dir}}\n\n# Mostly required for hadoop 2.0\nexport JAVA_LIBRARY_PATH=${JAVA_LIBRARY_PATH}\n\nexport
HADOOP_OPTS=\"-Dhdp.version=$HDP_VERSION $HADOOP_OPTS\"\n\n{% if is_datanode_max_locked_memory_set
%}\n# Fix temporary bug, when ulimit from conf files is not picked up, without full relogin.
\n# Makes sense to fix only when runing DN as root \nif [ \"$command\" == \"datanode\" ] &&
[ \"$EUID\" -eq 0 ] && [ -n \"$HADOOP_SECURE_DN_USER\" ]; then\n  ulimit -l {{datanode_max_locked_memory}}\nfi\n{%
endif %}", 
+            "hdfs_user": "hdfs", 
+            "hdfs_user_nproc_limit": "65536", 
+            "namenode_opt_newsize": "128m", 
+            "nfsgateway_heapsize": "1024", 
+            "dtnode_heapsize": "1024m", 
+            "keyserver_port": "", 
+            "hadoop_heapsize": "1024", 
+            "hdfs_user_nofile_limit": "128000", 
+            "namenode_opt_permsize": "128m"
+        }, 
+        "webhcat-site": {
+            "templeton.hive.properties": "hive.metastore.local=false,hive.metastore.uris=thrift://c6402.ambari.apache.org:9083,hive.metastore.sasl.enabled=false,hive.metastore.execute.setugi=true",

+            "templeton.hadoop.conf.dir": "/etc/hadoop/conf", 
+            "templeton.port": "50111", 
+            "templeton.hive.home": "hive.tar.gz/hive", 
+            "templeton.libjars": "/usr/hdp/${hdp.version}/zookeeper/zookeeper.jar,/usr/hdp/${hdp.version}/hive/lib/hive-common.jar",

+            "templeton.exec.timeout": "60000", 
+            "templeton.hcat.home": "hive.tar.gz/hive/hcatalog", 
+            "templeton.sqoop.home": "sqoop.tar.gz/sqoop", 
+            "templeton.python": "${env.PYTHON_CMD}", 
+            "templeton.sqoop.archive": "hdfs:///hdp/apps/${hdp.version}/sqoop/sqoop.tar.gz",

+            "templeton.hcat": "/usr/hdp/${hdp.version}/hive/bin/hcat", 
+            "templeton.hadoop": "/usr/hdp/${hdp.version}/hadoop/bin/hadoop", 
+            "templeton.override.enabled": "false", 
+            "templeton.jar": "/usr/hdp/${hdp.version}/hive/share/webhcat/svr/lib/hive-webhcat-*.jar",

+            "templeton.storage.class": "org.apache.hive.hcatalog.templeton.tool.ZooKeeperStorage",

+            "templeton.hive.extra.files": "/usr/hdp/${hdp.version}/tez/conf/tez-site.xml,/usr/hdp/${hdp.version}/tez,/usr/hdp/${hdp.version}/tez/lib",

+            "templeton.hive.path": "hive.tar.gz/hive/bin/hive", 
+            "templeton.pig.path": "pig.tar.gz/pig/bin/pig", 
+            "templeton.sqoop.path": "sqoop.tar.gz/sqoop/bin/sqoop", 
+            "templeton.zookeeper.hosts": "c6403.ambari.apache.org:2181,c6401.ambari.apache.org:2181,c6402.ambari.apache.org:2181",

+            "templeton.hive.archive": "hdfs:///hdp/apps/${hdp.version}/hive/hive.tar.gz",

+            "templeton.streaming.jar": "hdfs:///hdp/apps/${hdp.version}/mapreduce/hadoop-streaming.jar",

+            "templeton.pig.archive": "hdfs:///hdp/apps/${hdp.version}/pig/pig.tar.gz"
+        }, 
+        "ranger-hdfs-security": {}, 
+        "hiveserver2-site": {
+            "hive.security.authorization.enabled": "false"
+        }, 
+        "cluster-env": {
+            "security_enabled": "false", 
+            "smokeuser_keytab": "/etc/security/keytabs/smokeuser.headless.keytab", 
+            "ignore_groupsusers_create": "false", 
+            "override_uid": "true", 
+            "kerberos_domain": "EXAMPLE.COM", 
+            "repo_suse_rhel_template": "[{{repo_id}}]\nname={{repo_id}}\n{% if mirror_list
%}mirrorlist={{mirror_list}}{% else %}baseurl={{base_url}}{% endif %}\n\npath=/\nenabled=1\ngpgcheck=0",

+            "user_group": "hadoop", 
+            "smokeuser": "ambari-qa", 
+            "repo_ubuntu_template": "{{package_type}} {{base_url}} {{components}}"
+        }
+    }, 
+    "commandId": "9-36", 
+    "forceRefreshConfigTags": [], 
+    "clusterHostInfo": {
+        "hive_metastore_host": [
+            "c6402.ambari.apache.org"
+        ], 
+        "rm_host": [
+            "c6402.ambari.apache.org"
+        ], 
+        "all_hosts": [
+            "c6403.ambari.apache.org", 
+            "c6401.ambari.apache.org", 
+            "c6402.ambari.apache.org"
+        ], 
+        "slave_hosts": [
+            "c6403.ambari.apache.org"
+        ], 
+        "namenode_host": [
+            "c6401.ambari.apache.org"
+        ], 
+        "hive_mysql_host": [
+            "c6402.ambari.apache.org"
+        ], 
+        "webhcat_server_host": [
+            "c6402.ambari.apache.org"
+        ], 
+        "all_ipv4_ips": [
+            "192.168.64.103", 
+            "192.168.64.101", 
+            "192.168.64.102"
+        ], 
+        "ambari_server_host": [
+            "10.0.0.13"
+        ], 
+        "hive_server_host": [
+            "c6402.ambari.apache.org"
+        ], 
+        "all_racks": [
+            "/default-rack", 
+            "/default-rack", 
+            "/default-rack"
+        ]
+    }
+}


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