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From ecl...@apache.org
Subject [08/75] [abbrv] hadoop git commit: HADOOP-11791. Update src/site/markdown/releases to include old versions of Hadoop (aw)
Date Fri, 23 Oct 2015 19:00:35 GMT
http://git-wip-us.apache.org/repos/asf/hadoop/blob/d759b4bd/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md
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diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.3.0/RELEASENOTES.2.3.0.md
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+
+<!---
+# 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.
+-->
+# Apache Hadoop  2.3.0 Release Notes
+
+These release notes cover new developer and user-facing incompatibilities, features, and major improvements.
+
+
+---
+
+* [HADOOP-10047](https://issues.apache.org/jira/browse/HADOOP-10047) | *Major* | **Add a directbuffer Decompressor API to hadoop**
+
+Direct Bytebuffer decompressors for Zlib (Deflate & Gzip) and Snappy
+
+
+---
+
+* [HADOOP-9241](https://issues.apache.org/jira/browse/HADOOP-9241) | *Trivial* | **DU refresh interval is not configurable**
+
+The 'du' (disk usage command from Unix) script refresh monitor is now configurable in the same way as its 'df' counterpart, via the property 'fs.du.interval', the default of which is 10 minute (in ms).
+
+
+---
+
+* [HADOOP-8545](https://issues.apache.org/jira/browse/HADOOP-8545) | *Major* | **Filesystem Implementation for OpenStack Swift**
+
+Added file system implementation for OpenStack Swift.
+There are two implementation: block and native (similar to Amazon S3 integration).
+Data locality issue solved by patch in Swift, commit procedure to OpenStack is in progress.
+
+To use implementation add to core-site.xml following:
+
+```xml
+	<property>
+	        <name>fs.swift.impl</name>
+	    	<value>com.mirantis.fs.SwiftFileSystem</value>
+	</property>
+	<property>
+	    	<name>fs.swift.block.impl</name>
+	         <value>com.mirantis.fs.block.SwiftBlockFileSystem</value>
+        </property>
+```
+
+In MapReduce job specify following configs for OpenStack Keystone authentication:
+
+```java
+conf.set("swift.auth.url", "http://172.18.66.117:5000/v2.0/tokens");
+conf.set("swift.tenant", "superuser");
+conf.set("swift.username", "admin1");
+conf.set("swift.password", "password");
+conf.setInt("swift.http.port", 8080);
+conf.setInt("swift.https.port", 443);
+```
+
+Additional information specified on github: https://github.com/DmitryMezhensky/Hadoop-and-Swift-integration
+
+
+---
+
+* [HDFS-5704](https://issues.apache.org/jira/browse/HDFS-5704) | *Major* | **Change OP\_UPDATE\_BLOCKS  with a new OP\_ADD\_BLOCK**
+
+Add a new editlog record (OP\_ADD\_BLOCK) that only records allocation of the new block instead of the entire block list, on every block allocation.
+
+
+---
+
+* [HDFS-5663](https://issues.apache.org/jira/browse/HDFS-5663) | *Major* | **make the retry time and interval value configurable in openInfo()**
+
+Makes the retries and time between retries getting the length of the last block on file configurable.  Below are the new configurations.
+
+dfs.client.retry.times.get-last-block-length
+dfs.client.retry.interval-ms.get-last-block-length
+
+They are set to the 3 and 4000 respectively, these being what was previously hardcoded.
+
+
+---
+
+* [HDFS-5536](https://issues.apache.org/jira/browse/HDFS-5536) | *Major* | **Implement HTTP policy for Namenode and DataNode**
+
+Add new HTTP policy configuration. Users can use "dfs.http.policy" to control the HTTP endpoints for NameNode and DataNode. Specifically, The following values are supported:
+- HTTP\_ONLY : Service is provided only on http
+- HTTPS\_ONLY : Service is provided only on https
+- HTTP\_AND\_HTTPS : Service is provided both on http and https
+
+hadoop.ssl.enabled and dfs.https.enabled are deprecated. When the deprecated configuration properties are still configured, currently http policy is decided based on the following rules:
+1. If dfs.http.policy is set to HTTPS\_ONLY or HTTP\_AND\_HTTPS. It picks the specified policy, otherwise it proceeds to 2~4.
+2. It picks HTTPS\_ONLY if hadoop.ssl.enabled equals to true.
+3. It picks HTTP\_AND\_HTTPS if dfs.https.enable equals to true.
+4. It picks HTTP\_ONLY for other configurations.
+
+
+---
+
+* [HDFS-5502](https://issues.apache.org/jira/browse/HDFS-5502) | *Major* | **Fix HTTPS support in HsftpFileSystem**
+
+Fix the https support in HsftpFileSystem. With the change the client now verifies the server certificate. In particular, client side will verify the Common Name of the certificate using a strategy specified by the configuration property "hadoop.ssl.hostname.verifier".
+
+
+---
+
+* [HDFS-4997](https://issues.apache.org/jira/browse/HDFS-4997) | *Major* | **libhdfs doesn't return correct error codes in most cases**
+
+libhdfs now returns correct codes in errno. Previously, due to a bug, many functions set errno to 255 instead of the more specific error code.
+
+
+---
+
+* [HDFS-4983](https://issues.apache.org/jira/browse/HDFS-4983) | *Major* | **Numeric usernames do not work with WebHDFS FS**
+
+Add a new configuration property "dfs.webhdfs.user.provider.user.pattern" for specifying user name filters for WebHDFS.
+
+
+---
+
+* [MAPREDUCE-1176](https://issues.apache.org/jira/browse/MAPREDUCE-1176) | *Major* | **FixedLengthInputFormat and FixedLengthRecordReader**
+
+Addition of FixedLengthInputFormat and FixedLengthRecordReader in the org.apache.hadoop.mapreduce.lib.input package. These two classes can be used when you need to read data from files containing fixed length (fixed width) records. Such files have no CR/LF (or any combination thereof), no delimiters etc, but each record is a fixed length, and extra data is padded with spaces. The data is one gigantic line within a file. When creating a job that specifies this input format, the job must have the "mapreduce.input.fixedlengthinputformat.record.length" property set as follows myJobConf.setInt("mapreduce.input.fixedlengthinputformat.record.length",[myFixedRecordLength]); 
+
+Please see javadoc for more details.
+
+
+

http://git-wip-us.apache.org/repos/asf/hadoop/blob/d759b4bd/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md
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diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/2.4.0/CHANGES.2.4.0.md
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+
+<!---
+# 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.
+-->
+# Apache Hadoop Changelog
+
+## Release 2.4.0 - 2014-04-07
+
+### INCOMPATIBLE CHANGES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-8691](https://issues.apache.org/jira/browse/HADOOP-8691) | FsShell can print "Found xxx items" unnecessarily often |  Minor | fs | Jason Lowe | Daryn Sharp |
+| [HDFS-6102](https://issues.apache.org/jira/browse/HDFS-6102) | Lower the default maximum items per directory to fix PB fsimage loading |  Blocker | namenode | Andrew Wang | Andrew Wang |
+| [HDFS-6055](https://issues.apache.org/jira/browse/HDFS-6055) | Change default configuration to limit file name length in HDFS |  Major | namenode | Suresh Srinivas | Chris Nauroth |
+| [HDFS-5804](https://issues.apache.org/jira/browse/HDFS-5804) | HDFS NFS Gateway fails to mount and proxy when using Kerberos |  Major | nfs | Abin Shahab | Abin Shahab |
+| [HDFS-5321](https://issues.apache.org/jira/browse/HDFS-5321) | Clean up the HTTP-related configuration in HDFS |  Major | . | Haohui Mai | Haohui Mai |
+| [HDFS-5138](https://issues.apache.org/jira/browse/HDFS-5138) | Support HDFS upgrade in HA |  Blocker | . | Kihwal Lee | Aaron T. Myers |
+| [MAPREDUCE-5036](https://issues.apache.org/jira/browse/MAPREDUCE-5036) | Default shuffle handler port should not be 8080 |  Major | . | Sandy Ryza | Sandy Ryza |
+
+
+### NEW FEATURES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-10184](https://issues.apache.org/jira/browse/HADOOP-10184) | Hadoop Common changes required to support HDFS ACLs. |  Major | fs, security | Chris Nauroth | Chris Nauroth |
+| [HDFS-5535](https://issues.apache.org/jira/browse/HDFS-5535) | Umbrella jira for improved HDFS rolling upgrades |  Major | datanode, ha, hdfs-client, namenode | Nathan Roberts | Tsz Wo Nicholas Sze |
+| [HDFS-4685](https://issues.apache.org/jira/browse/HDFS-4685) | Implementation of ACLs in HDFS |  Major | hdfs-client, namenode, security | Sachin Jose | Chris Nauroth |
+
+
+### IMPROVEMENTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-10423](https://issues.apache.org/jira/browse/HADOOP-10423) | Clarify compatibility policy document for combination of new client and old server. |  Minor | documentation | Chris Nauroth | Chris Nauroth |
+| [HADOOP-10386](https://issues.apache.org/jira/browse/HADOOP-10386) | Log proxy hostname in various exceptions being thrown in a HA setup |  Minor | ha | Arpit Gupta | Haohui Mai |
+| [HADOOP-10383](https://issues.apache.org/jira/browse/HADOOP-10383) | InterfaceStability annotations should have RetentionPolicy.RUNTIME |  Major | . | Enis Soztutar | Enis Soztutar |
+| [HADOOP-10379](https://issues.apache.org/jira/browse/HADOOP-10379) | Protect authentication cookies with the HttpOnly and Secure flags |  Major | . | Haohui Mai | Haohui Mai |
+| [HADOOP-10374](https://issues.apache.org/jira/browse/HADOOP-10374) | InterfaceAudience annotations should have RetentionPolicy.RUNTIME |  Major | . | Enis Soztutar | Enis Soztutar |
+| [HADOOP-10348](https://issues.apache.org/jira/browse/HADOOP-10348) | Deprecate hadoop.ssl.configuration in branch-2, and remove it in trunk |  Major | . | Haohui Mai | Haohui Mai |
+| [HADOOP-10343](https://issues.apache.org/jira/browse/HADOOP-10343) | Change info to debug log in LossyRetryInvocationHandler |  Minor | . | Arpit Gupta | Arpit Gupta |
+| [HADOOP-10333](https://issues.apache.org/jira/browse/HADOOP-10333) | Fix grammatical error in overview.html document |  Trivial | . | René Nyffenegger | René Nyffenegger |
+| [HADOOP-10295](https://issues.apache.org/jira/browse/HADOOP-10295) | Allow distcp to automatically identify the checksum type of source files and use it for the target |  Major | tools/distcp | Jing Zhao | Jing Zhao |
+| [HADOOP-10221](https://issues.apache.org/jira/browse/HADOOP-10221) | Add a plugin to specify SaslProperties for RPC protocol based on connection properties |  Major | security | Benoy Antony | Benoy Antony |
+| [HADOOP-10211](https://issues.apache.org/jira/browse/HADOOP-10211) | Enable RPC protocol to negotiate SASL-QOP values between clients and servers |  Major | security | Benoy Antony | Benoy Antony |
+| [HADOOP-10139](https://issues.apache.org/jira/browse/HADOOP-10139) | Update and improve the Single Cluster Setup document |  Major | documentation | Akira AJISAKA | Akira AJISAKA |
+| [HADOOP-9454](https://issues.apache.org/jira/browse/HADOOP-9454) | Support multipart uploads for s3native |  Major | fs/s3 | Jordan Mendelson | Akira AJISAKA |
+| [HDFS-6150](https://issues.apache.org/jira/browse/HDFS-6150) | Add inode id information in the logs to make debugging easier |  Minor | namenode | Suresh Srinivas | Suresh Srinivas |
+| [HDFS-6138](https://issues.apache.org/jira/browse/HDFS-6138) | User Guide for how to use viewfs with federation |  Minor | documentation | Sanjay Radia | Sanjay Radia |
+| [HDFS-6123](https://issues.apache.org/jira/browse/HDFS-6123) | Improve datanode error messages |  Minor | datanode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-6120](https://issues.apache.org/jira/browse/HDFS-6120) | Fix and improve safe mode log messages |  Major | namenode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-6090](https://issues.apache.org/jira/browse/HDFS-6090) | Use MiniDFSCluster.Builder instead of deprecated constructors |  Minor | test | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-6085](https://issues.apache.org/jira/browse/HDFS-6085) | Improve CacheReplicationMonitor log messages a bit |  Major | namenode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6084](https://issues.apache.org/jira/browse/HDFS-6084) | Namenode UI - "Hadoop" logo link shouldn't go to hadoop homepage |  Minor | namenode | Travis Thompson | Travis Thompson |
+| [HDFS-6080](https://issues.apache.org/jira/browse/HDFS-6080) | Improve NFS gateway performance by making rtmax and wtmax configurable |  Major | nfs, performance | Abin Shahab | Abin Shahab |
+| [HDFS-6072](https://issues.apache.org/jira/browse/HDFS-6072) | Clean up dead code of FSImage |  Major | . | Haohui Mai | Haohui Mai |
+| [HDFS-6070](https://issues.apache.org/jira/browse/HDFS-6070) | Cleanup use of ReadStatistics in DFSInputStream |  Trivial | . | Andrew Wang | Andrew Wang |
+| [HDFS-6069](https://issues.apache.org/jira/browse/HDFS-6069) | Quash stack traces when ACLs are disabled |  Trivial | namenode | Andrew Wang | Chris Nauroth |
+| [HDFS-6044](https://issues.apache.org/jira/browse/HDFS-6044) | Add property for setting the NFS look up time for users |  Minor | nfs | Brandon Li | Brandon Li |
+| [HDFS-6043](https://issues.apache.org/jira/browse/HDFS-6043) | Give HDFS daemons NFS3 and Portmap their own OPTS |  Major | nfs | Brandon Li | Brandon Li |
+| [HDFS-6018](https://issues.apache.org/jira/browse/HDFS-6018) | Exception recorded in LOG when IPCLoggerChannel#close is called |  Trivial | . | Jing Zhao | Jing Zhao |
+| [HDFS-6006](https://issues.apache.org/jira/browse/HDFS-6006) | Remove duplicate code in FSNameSystem#getFileInfo |  Trivial | namenode | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-5979](https://issues.apache.org/jira/browse/HDFS-5979) | Typo and logger fix for fsimage PB code |  Minor | . | Andrew Wang | Andrew Wang |
+| [HDFS-5939](https://issues.apache.org/jira/browse/HDFS-5939) | WebHdfs returns misleading error code and logs nothing if trying to create a file with no DNs in cluster |  Major | hdfs-client | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-5935](https://issues.apache.org/jira/browse/HDFS-5935) | New Namenode UI FS browser should throw smarter error messages |  Minor | namenode | Travis Thompson | Travis Thompson |
+| [HDFS-5929](https://issues.apache.org/jira/browse/HDFS-5929) | Add Block pool % usage to HDFS federated nn page |  Major | federation | Siqi Li | Siqi Li |
+| [HDFS-5910](https://issues.apache.org/jira/browse/HDFS-5910) | Enhance DataTransferProtocol to allow per-connection choice of encryption/plain-text |  Major | security | Benoy Antony | Benoy Antony |
+| [HDFS-5908](https://issues.apache.org/jira/browse/HDFS-5908) | Change AclFeature to capture list of ACL entries in an ImmutableList. |  Minor | namenode | Chris Nauroth | Chris Nauroth |
+| [HDFS-5781](https://issues.apache.org/jira/browse/HDFS-5781) | Use an array to record the mapping between FSEditLogOpCode and the corresponding byte value |  Minor | namenode | Jing Zhao | Jing Zhao |
+| [HDFS-5776](https://issues.apache.org/jira/browse/HDFS-5776) | Support 'hedged' reads in DFSClient |  Major | hdfs-client | Liang Xie | Liang Xie |
+| [HDFS-5775](https://issues.apache.org/jira/browse/HDFS-5775) | Consolidate the code for serialization in CacheManager |  Major | namenode | Haohui Mai | Haohui Mai |
+| [HDFS-5768](https://issues.apache.org/jira/browse/HDFS-5768) | Consolidate the serialization code in DelegationTokenSecretManager |  Major | namenode | Haohui Mai | Haohui Mai |
+| [HDFS-5709](https://issues.apache.org/jira/browse/HDFS-5709) | Improve NameNode upgrade with existing reserved paths and path components |  Major | namenode | Andrew Wang | Andrew Wang |
+| [HDFS-5698](https://issues.apache.org/jira/browse/HDFS-5698) | Use protobuf to serialize / deserialize FSImage |  Major | namenode | Haohui Mai | Haohui Mai |
+| [HDFS-5318](https://issues.apache.org/jira/browse/HDFS-5318) | Support read-only and read-write paths to shared replicas |  Major | namenode | Eric Sirianni |  |
+| [HDFS-5153](https://issues.apache.org/jira/browse/HDFS-5153) | Datanode should send block reports for each storage in a separate message |  Major | datanode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-4911](https://issues.apache.org/jira/browse/HDFS-4911) | Reduce PeerCache timeout to be commensurate with dfs.datanode.socket.reuse.keepalive |  Minor | . | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-4370](https://issues.apache.org/jira/browse/HDFS-4370) | Fix typo Blanacer in DataNode |  Major | datanode | Konstantin Shvachko | Chu Tong |
+| [HDFS-4200](https://issues.apache.org/jira/browse/HDFS-4200) | Reduce the size of synchronized sections in PacketResponder |  Major | datanode | Suresh Srinivas | Andrew Wang |
+| [HDFS-3405](https://issues.apache.org/jira/browse/HDFS-3405) | Checkpointing should use HTTP POST or PUT instead of GET-GET to send merged fsimages |  Major | . | Aaron T. Myers | Vinayakumar B |
+| [MAPREDUCE-5773](https://issues.apache.org/jira/browse/MAPREDUCE-5773) | Provide dedicated MRAppMaster syslog length limit |  Blocker | mr-am | Gera Shegalov | Gera Shegalov |
+| [MAPREDUCE-5761](https://issues.apache.org/jira/browse/MAPREDUCE-5761) | Add a log message like "encrypted shuffle is ON" in nodemanager logs |  Trivial | . | Yesha Vora | Jian He |
+| [MAPREDUCE-5754](https://issues.apache.org/jira/browse/MAPREDUCE-5754) | Preserve Job diagnostics in history |  Major | jobhistoryserver, mr-am | Gera Shegalov | Gera Shegalov |
+| [MAPREDUCE-5732](https://issues.apache.org/jira/browse/MAPREDUCE-5732) | Report proper queue when job has been automatically placed |  Major | . | Sandy Ryza | Sandy Ryza |
+| [MAPREDUCE-5553](https://issues.apache.org/jira/browse/MAPREDUCE-5553) | Add task state filters on Application/MRJob page for MR Application master |  Minor | applicationmaster | Paul Han | Paul Han |
+| [MAPREDUCE-2349](https://issues.apache.org/jira/browse/MAPREDUCE-2349) | speed up list[located]status calls from input formats |  Major | task | Joydeep Sen Sarma | Siddharth Seth |
+| [YARN-1789](https://issues.apache.org/jira/browse/YARN-1789) | ApplicationSummary does not escape newlines in the app name |  Minor | resourcemanager | Akira AJISAKA | Tsuyoshi Ozawa |
+| [YARN-1771](https://issues.apache.org/jira/browse/YARN-1771) | many getFileStatus calls made from node manager for localizing a public distributed cache resource |  Critical | nodemanager | Sangjin Lee | Sangjin Lee |
+| [YARN-1570](https://issues.apache.org/jira/browse/YARN-1570) | Formatting the lines within 80 chars in YarnCommands.apt.vm |  Minor | documentation | Akira AJISAKA | Akira AJISAKA |
+| [YARN-1536](https://issues.apache.org/jira/browse/YARN-1536) | Cleanup: Get rid of ResourceManager#get\*SecretManager() methods and use the RMContext methods instead |  Minor | resourcemanager | Karthik Kambatla | Anubhav Dhoot |
+| [YARN-1512](https://issues.apache.org/jira/browse/YARN-1512) | Enhance CS to decouple scheduling from node heartbeats |  Major | . | Arun C Murthy | Arun C Murthy |
+| [YARN-1171](https://issues.apache.org/jira/browse/YARN-1171) | Add default queue properties to Fair Scheduler documentation |  Major | documentation, scheduler | Sandy Ryza | Naren Koneru |
+
+
+### BUG FIXES:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-10450](https://issues.apache.org/jira/browse/HADOOP-10450) | Build zlib native code bindings in hadoop.dll for Windows. |  Major | io, native | Chris Nauroth | Chris Nauroth |
+| [HADOOP-10442](https://issues.apache.org/jira/browse/HADOOP-10442) | Group look-up can cause segmentation fault when certain JNI-based mapping module is used. |  Blocker | . | Kihwal Lee | Kihwal Lee |
+| [HADOOP-10441](https://issues.apache.org/jira/browse/HADOOP-10441) | Namenode metric "rpc.RetryCache/NameNodeRetryCache.CacheHit" can't be correctly processed by Ganglia |  Blocker | metrics | Jing Zhao | Jing Zhao |
+| [HADOOP-10440](https://issues.apache.org/jira/browse/HADOOP-10440) | HarFsInputStream of HarFileSystem, when reading data, computing the position has bug |  Major | fs | guodongdong | guodongdong |
+| [HADOOP-10425](https://issues.apache.org/jira/browse/HADOOP-10425) | Incompatible behavior of LocalFileSystem:getContentSummary |  Critical | fs | Brandon Li | Tsz Wo Nicholas Sze |
+| [HADOOP-10422](https://issues.apache.org/jira/browse/HADOOP-10422) | Remove redundant logging of RPC retry attempts. |  Minor | ipc | Chris Nauroth | Chris Nauroth |
+| [HADOOP-10395](https://issues.apache.org/jira/browse/HADOOP-10395) | TestCallQueueManager is flaky |  Minor | test | Arpit Agarwal | Arpit Agarwal |
+| [HADOOP-10394](https://issues.apache.org/jira/browse/HADOOP-10394) | TestAuthenticationFilter is flaky |  Major | test | Arpit Agarwal | Arpit Agarwal |
+| [HADOOP-10368](https://issues.apache.org/jira/browse/HADOOP-10368) | InputStream is not closed in VersionInfo ctor |  Minor | util | Ted Yu | Tsuyoshi Ozawa |
+| [HADOOP-10361](https://issues.apache.org/jira/browse/HADOOP-10361) | Correct alignment in CLI output for ACLs. |  Minor | fs | Chris Nauroth | Chris Nauroth |
+| [HADOOP-10355](https://issues.apache.org/jira/browse/HADOOP-10355) | TestLoadGenerator#testLoadGenerator fails |  Major | . | Akira AJISAKA | Haohui Mai |
+| [HADOOP-10354](https://issues.apache.org/jira/browse/HADOOP-10354) | TestWebHDFS fails after merge of HDFS-4685 to trunk |  Major | fs | Yongjun Zhang | Chris Nauroth |
+| [HADOOP-10353](https://issues.apache.org/jira/browse/HADOOP-10353) | FsUrlStreamHandlerFactory is not thread safe |  Major | fs | Tudor Scurtu | Tudor Scurtu |
+| [HADOOP-10352](https://issues.apache.org/jira/browse/HADOOP-10352) | Recursive setfacl erroneously attempts to apply default ACL to files. |  Major | fs | Chris Nauroth | Chris Nauroth |
+| [HADOOP-10346](https://issues.apache.org/jira/browse/HADOOP-10346) | Deadlock while logging tokens |  Blocker | security | Jason Lowe | Jason Lowe |
+| [HADOOP-10338](https://issues.apache.org/jira/browse/HADOOP-10338) | Cannot get the FileStatus of the root inode from the new Globber |  Major | . | Andrew Wang | Colin Patrick McCabe |
+| [HADOOP-10337](https://issues.apache.org/jira/browse/HADOOP-10337) | ConcurrentModificationException from MetricsDynamicMBeanBase.createMBeanInfo() |  Major | metrics | Liang Xie | Liang Xie |
+| [HADOOP-10330](https://issues.apache.org/jira/browse/HADOOP-10330) | TestFrameDecoder fails if it cannot bind port 12345 |  Major | test | Arpit Agarwal | Arpit Agarwal |
+| [HADOOP-10328](https://issues.apache.org/jira/browse/HADOOP-10328) | loadGenerator exit code is not reliable |  Major | tools | Arpit Gupta | Haohui Mai |
+| [HADOOP-10327](https://issues.apache.org/jira/browse/HADOOP-10327) | Trunk windows build broken after HDFS-5746 |  Blocker | native | Vinayakumar B | Vinayakumar B |
+| [HADOOP-10326](https://issues.apache.org/jira/browse/HADOOP-10326) | M/R jobs can not access S3 if Kerberos is enabled |  Major | security | Manuel DE FERRAN | bc Wong |
+| [HADOOP-10320](https://issues.apache.org/jira/browse/HADOOP-10320) | Javadoc in InterfaceStability.java lacks final \</ul\> |  Trivial | documentation | René Nyffenegger | René Nyffenegger |
+| [HADOOP-10314](https://issues.apache.org/jira/browse/HADOOP-10314) | The ls command help still shows outdated 0.16 format. |  Major | . | Kihwal Lee | Rushabh S Shah |
+| [HADOOP-10301](https://issues.apache.org/jira/browse/HADOOP-10301) | AuthenticationFilter should return Forbidden for failed authentication |  Blocker | security | Daryn Sharp | Daryn Sharp |
+| [HADOOP-10249](https://issues.apache.org/jira/browse/HADOOP-10249) | LdapGroupsMapping should trim ldap password read from file |  Major | . | Dilli Arumugam | Dilli Arumugam |
+| [HADOOP-10191](https://issues.apache.org/jira/browse/HADOOP-10191) | Missing executable permission on viewfs internal dirs |  Blocker | viewfs | Gera Shegalov | Gera Shegalov |
+| [HADOOP-10085](https://issues.apache.org/jira/browse/HADOOP-10085) | CompositeService should allow adding services while being inited |  Blocker | . | Karthik Kambatla | Steve Loughran |
+| [HADOOP-10070](https://issues.apache.org/jira/browse/HADOOP-10070) | RPC client doesn't use per-connection conf to determine server's expected Kerberos principal name |  Major | security | Aaron T. Myers | Aaron T. Myers |
+| [HADOOP-10015](https://issues.apache.org/jira/browse/HADOOP-10015) | UserGroupInformation prints out excessive ERROR warnings |  Minor | security | Haohui Mai | Nicolas Liochon |
+| [HDFS-6237](https://issues.apache.org/jira/browse/HDFS-6237) | TestDFSShell#testGet fails on Windows due to invalid file system path. |  Trivial | hdfs-client, test | Chris Nauroth | Chris Nauroth |
+| [HDFS-6166](https://issues.apache.org/jira/browse/HDFS-6166) | revisit balancer so\_timeout |  Blocker | balancer & mover | Nathan Roberts | Nathan Roberts |
+| [HDFS-6163](https://issues.apache.org/jira/browse/HDFS-6163) | Fix a minor bug in the HA upgrade document |  Minor | documentation | Fengdong Yu | Fengdong Yu |
+| [HDFS-6157](https://issues.apache.org/jira/browse/HDFS-6157) | Fix the entry point of OfflineImageViewer for hdfs.cmd |  Major | . | Haohui Mai | Haohui Mai |
+| [HDFS-6140](https://issues.apache.org/jira/browse/HDFS-6140) | WebHDFS cannot create a file with spaces in the name after HA failover changes. |  Major | webhdfs | Chris Nauroth | Chris Nauroth |
+| [HDFS-6135](https://issues.apache.org/jira/browse/HDFS-6135) | In HDFS upgrade with HA setup, JournalNode cannot handle layout version bump when rolling back |  Blocker | journal-node | Jing Zhao | Jing Zhao |
+| [HDFS-6131](https://issues.apache.org/jira/browse/HDFS-6131) | Move HDFSHighAvailabilityWithNFS.apt.vm and HDFSHighAvailabilityWithQJM.apt.vm from Yarn to HDFS |  Major | documentation | Jing Zhao | Jing Zhao |
+| [HDFS-6130](https://issues.apache.org/jira/browse/HDFS-6130) | NPE when upgrading namenode from fsimages older than -32 |  Blocker | namenode | Fengdong Yu | Haohui Mai |
+| [HDFS-6129](https://issues.apache.org/jira/browse/HDFS-6129) | When a replica is not found for deletion, do not throw exception. |  Minor | datanode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-6127](https://issues.apache.org/jira/browse/HDFS-6127) | WebHDFS tokens cannot be renewed in HA setup |  Major | ha | Arpit Gupta | Haohui Mai |
+| [HDFS-6117](https://issues.apache.org/jira/browse/HDFS-6117) | Print file path information in FileNotFoundException |  Minor | namenode | Suresh Srinivas | Suresh Srinivas |
+| [HDFS-6115](https://issues.apache.org/jira/browse/HDFS-6115) | flush() should be called for every append on block scan verification log |  Minor | datanode | Vinayakumar B | Vinayakumar B |
+| [HDFS-6107](https://issues.apache.org/jira/browse/HDFS-6107) | When a block can't be cached due to limited space on the DataNode, that block becomes uncacheable |  Major | datanode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6106](https://issues.apache.org/jira/browse/HDFS-6106) | Reduce default for dfs.namenode.path.based.cache.refresh.interval.ms |  Major | . | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6105](https://issues.apache.org/jira/browse/HDFS-6105) | NN web UI for DN list loads the same jmx page multiple times. |  Major | . | Kihwal Lee | Haohui Mai |
+| [HDFS-6100](https://issues.apache.org/jira/browse/HDFS-6100) | DataNodeWebHdfsMethods does not failover in HA mode |  Major | ha | Arpit Gupta | Haohui Mai |
+| [HDFS-6099](https://issues.apache.org/jira/browse/HDFS-6099) | HDFS file system limits not enforced on renames. |  Major | namenode | Chris Nauroth | Chris Nauroth |
+| [HDFS-6097](https://issues.apache.org/jira/browse/HDFS-6097) | zero-copy reads are incorrectly disabled on file offsets above 2GB |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6096](https://issues.apache.org/jira/browse/HDFS-6096) | TestWebHdfsTokens may timeout |  Minor | test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-6094](https://issues.apache.org/jira/browse/HDFS-6094) | The same block can be counted twice towards safe mode threshold |  Major | namenode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-6089](https://issues.apache.org/jira/browse/HDFS-6089) | Standby NN while transitioning to active throws a connection refused error when the prior active NN process is suspended |  Major | ha | Arpit Gupta | Jing Zhao |
+| [HDFS-6079](https://issues.apache.org/jira/browse/HDFS-6079) | Timeout for getFileBlockStorageLocations does not work |  Major | hdfs-client | Andrew Wang | Andrew Wang |
+| [HDFS-6078](https://issues.apache.org/jira/browse/HDFS-6078) | TestIncrementalBlockReports is flaky |  Minor | test | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-6077](https://issues.apache.org/jira/browse/HDFS-6077) | running slive with webhdfs on secure HA cluster fails with unkown host exception |  Major | . | Arpit Gupta | Jing Zhao |
+| [HDFS-6071](https://issues.apache.org/jira/browse/HDFS-6071) | BlockReaderLocal doesn't return -1 on EOF when doing a zero-length read on a short file |  Major | . | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6068](https://issues.apache.org/jira/browse/HDFS-6068) | Disallow snapshot names that are also invalid directory names |  Major | snapshots | Andrew Wang | sathish |
+| [HDFS-6067](https://issues.apache.org/jira/browse/HDFS-6067) | TestPread.testMaxOutHedgedReadPool is flaky |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6065](https://issues.apache.org/jira/browse/HDFS-6065) | HDFS zero-copy reads should return null on EOF when doing ZCR |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6064](https://issues.apache.org/jira/browse/HDFS-6064) | DFSConfigKeys.DFS\_BLOCKREPORT\_INTERVAL\_MSEC\_DEFAULT is not updated with latest block report interval of 6 hrs |  Minor | datanode | Vinayakumar B | Vinayakumar B |
+| [HDFS-6063](https://issues.apache.org/jira/browse/HDFS-6063) | TestAclCLI fails intermittently when running test 24: copyFromLocal |  Minor | test, tools | Colin Patrick McCabe | Chris Nauroth |
+| [HDFS-6062](https://issues.apache.org/jira/browse/HDFS-6062) | TestRetryCacheWithHA#testConcat is flaky |  Minor | . | Jing Zhao | Jing Zhao |
+| [HDFS-6059](https://issues.apache.org/jira/browse/HDFS-6059) | TestBlockReaderLocal fails if native library is not available |  Major | . | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-6058](https://issues.apache.org/jira/browse/HDFS-6058) | Fix TestHDFSCLI failures after HADOOP-8691 change |  Major | . | Vinayakumar B | Haohui Mai |
+| [HDFS-6057](https://issues.apache.org/jira/browse/HDFS-6057) | DomainSocketWatcher.watcherThread should be marked as daemon thread |  Blocker | hdfs-client | Eric Sirianni | Colin Patrick McCabe |
+| [HDFS-6053](https://issues.apache.org/jira/browse/HDFS-6053) | Fix TestDecommissioningStatus and TestDecommission in branch-2 |  Major | namenode | Jing Zhao | Jing Zhao |
+| [HDFS-6051](https://issues.apache.org/jira/browse/HDFS-6051) | HDFS cannot run on Windows since short-circuit shared memory segment changes. |  Blocker | hdfs-client | Chris Nauroth | Colin Patrick McCabe |
+| [HDFS-6047](https://issues.apache.org/jira/browse/HDFS-6047) | TestPread NPE inside in DFSInputStream hedgedFetchBlockByteRange |  Major | . | stack | stack |
+| [HDFS-6039](https://issues.apache.org/jira/browse/HDFS-6039) | Uploading a File under a Dir with default acls throws "Duplicated ACLFeature" |  Major | namenode | Yesha Vora | Chris Nauroth |
+| [HDFS-6033](https://issues.apache.org/jira/browse/HDFS-6033) | PBImageXmlWriter incorrectly handles processing cache directives |  Major | caching | Aaron T. Myers | Aaron T. Myers |
+| [HDFS-6028](https://issues.apache.org/jira/browse/HDFS-6028) | Print clearer error message when user attempts to delete required mask entry from ACL. |  Trivial | namenode | Chris Nauroth | Chris Nauroth |
+| [HDFS-6008](https://issues.apache.org/jira/browse/HDFS-6008) | Namenode dead node link is giving HTTP error 500 |  Minor | namenode | Benoy Antony | Benoy Antony |
+| [HDFS-5988](https://issues.apache.org/jira/browse/HDFS-5988) | Bad fsimage always generated after upgrade |  Blocker | namenode | Andrew Wang | Andrew Wang |
+| [HDFS-5982](https://issues.apache.org/jira/browse/HDFS-5982) | Need to update snapshot manager when applying editlog for deleting a snapshottable directory |  Critical | namenode | Tassapol Athiapinya | Jing Zhao |
+| [HDFS-5981](https://issues.apache.org/jira/browse/HDFS-5981) | PBImageXmlWriter generates malformed XML |  Minor | tools | Haohui Mai | Haohui Mai |
+| [HDFS-5962](https://issues.apache.org/jira/browse/HDFS-5962) | Mtime and atime are not persisted for symbolic links |  Critical | . | Kihwal Lee | Akira AJISAKA |
+| [HDFS-5961](https://issues.apache.org/jira/browse/HDFS-5961) | OIV cannot load fsimages containing a symbolic link |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-5959](https://issues.apache.org/jira/browse/HDFS-5959) | Fix typo at section name in FSImageFormatProtobuf.java |  Minor | . | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-5949](https://issues.apache.org/jira/browse/HDFS-5949) | New Namenode UI when trying to download a file, the browser doesn't know the file name |  Minor | namenode | Travis Thompson | Travis Thompson |
+| [HDFS-5948](https://issues.apache.org/jira/browse/HDFS-5948) | TestBackupNode flakes with port in use error |  Major | . | Andrew Wang | Haohui Mai |
+| [HDFS-5944](https://issues.apache.org/jira/browse/HDFS-5944) | LeaseManager:findLeaseWithPrefixPath can't handle path like /a/b/ right and cause SecondaryNameNode failed do checkpoint |  Major | namenode | zhaoyunjiong | zhaoyunjiong |
+| [HDFS-5943](https://issues.apache.org/jira/browse/HDFS-5943) | 'dfs.namenode.https-address.ns1' property is not used in federation setup |  Major | . | Yesha Vora | Suresh Srinivas |
+| [HDFS-5941](https://issues.apache.org/jira/browse/HDFS-5941) | add dfs.namenode.secondary.https-address and dfs.namenode.secondary.https-address in hdfs-default.xml |  Major | documentation, namenode | Haohui Mai | Haohui Mai |
+| [HDFS-5934](https://issues.apache.org/jira/browse/HDFS-5934) | New Namenode UI back button doesn't work as expected |  Minor | namenode | Travis Thompson | Travis Thompson |
+| [HDFS-5922](https://issues.apache.org/jira/browse/HDFS-5922) | DN heartbeat thread can get stuck in tight loop |  Major | datanode | Aaron T. Myers | Arpit Agarwal |
+| [HDFS-5915](https://issues.apache.org/jira/browse/HDFS-5915) | Refactor FSImageFormatProtobuf to simplify cross section reads |  Major | namenode | Haohui Mai | Haohui Mai |
+| [HDFS-5913](https://issues.apache.org/jira/browse/HDFS-5913) | Nfs3Utils#getWccAttr() should check attr parameter against null |  Minor | nfs | Ted Yu | Brandon Li |
+| [HDFS-5904](https://issues.apache.org/jira/browse/HDFS-5904) | TestFileStatus fails intermittently on trunk and branch2 |  Major | . | Mit Desai | Mit Desai |
+| [HDFS-5901](https://issues.apache.org/jira/browse/HDFS-5901) | NameNode new UI doesn't support IE8 and IE9 on windows 7 |  Major | namenode | Vinayakumar B | Vinayakumar B |
+| [HDFS-5900](https://issues.apache.org/jira/browse/HDFS-5900) | Cannot set cache pool limit of "unlimited" via CacheAdmin |  Major | caching | Tassapol Athiapinya | Andrew Wang |
+| [HDFS-5895](https://issues.apache.org/jira/browse/HDFS-5895) | HDFS cacheadmin -listPools has exit\_code of 1 when the command returns 0 result. |  Major | tools | Tassapol Athiapinya | Tassapol Athiapinya |
+| [HDFS-5893](https://issues.apache.org/jira/browse/HDFS-5893) | HftpFileSystem.RangeHeaderUrlOpener uses the default URLConnectionFactory which does not import SSL certificates |  Major | . | Yesha Vora | Haohui Mai |
+| [HDFS-5891](https://issues.apache.org/jira/browse/HDFS-5891) | webhdfs should not try connecting the DN during redirection |  Major | namenode, webhdfs | Haohui Mai | Haohui Mai |
+| [HDFS-5886](https://issues.apache.org/jira/browse/HDFS-5886) | Potential null pointer deference in RpcProgramNfs3#readlink() |  Major | nfs | Ted Yu | Brandon Li |
+| [HDFS-5881](https://issues.apache.org/jira/browse/HDFS-5881) | Fix skip() of the short-circuit local reader (legacy). |  Critical | . | Kihwal Lee | Kihwal Lee |
+| [HDFS-5879](https://issues.apache.org/jira/browse/HDFS-5879) | Some TestHftpFileSystem tests do not close streams |  Major | test | Gera Shegalov | Gera Shegalov |
+| [HDFS-5859](https://issues.apache.org/jira/browse/HDFS-5859) | DataNode#checkBlockToken should check block tokens even if security is not enabled |  Major | datanode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5857](https://issues.apache.org/jira/browse/HDFS-5857) | TestWebHDFS#testNamenodeRestart fails intermittently with NPE |  Major | . | Mit Desai | Mit Desai |
+| [HDFS-5856](https://issues.apache.org/jira/browse/HDFS-5856) | DataNode.checkDiskError might throw NPE |  Minor | datanode | Josh Elser | Josh Elser |
+| [HDFS-5846](https://issues.apache.org/jira/browse/HDFS-5846) | Assigning DEFAULT\_RACK in resolveNetworkLocation method can break data resiliency |  Major | namenode | Nikola Vujic | Nikola Vujic |
+| [HDFS-5843](https://issues.apache.org/jira/browse/HDFS-5843) | DFSClient.getFileChecksum() throws IOException if checksum is disabled |  Major | datanode | Laurent Goujon | Laurent Goujon |
+| [HDFS-5840](https://issues.apache.org/jira/browse/HDFS-5840) | Follow-up to HDFS-5138 to improve error handling during partial upgrade failures |  Blocker | ha, journal-node, namenode | Aaron T. Myers | Jing Zhao |
+| [HDFS-5828](https://issues.apache.org/jira/browse/HDFS-5828) | BlockPlacementPolicyWithNodeGroup can place multiple replicas on the same node group when dfs.namenode.avoid.write.stale.datanode is true |  Major | namenode | Taylor, Buddy | Taylor, Buddy |
+| [HDFS-5821](https://issues.apache.org/jira/browse/HDFS-5821) | TestHDFSCLI fails for user names with the dash character |  Major | test | Gera Shegalov | Gera Shegalov |
+| [HDFS-5807](https://issues.apache.org/jira/browse/HDFS-5807) | TestBalancerWithNodeGroup.testBalancerWithNodeGroup fails intermittently on Branch-2 |  Major | test | Mit Desai | Chen He |
+| [HDFS-5803](https://issues.apache.org/jira/browse/HDFS-5803) | TestBalancer.testBalancer0 fails |  Major | . | Mit Desai | Chen He |
+| [HDFS-5791](https://issues.apache.org/jira/browse/HDFS-5791) | TestHttpsFileSystem should use a random port to avoid binding error during testing |  Major | test | Brandon Li | Haohui Mai |
+| [HDFS-5790](https://issues.apache.org/jira/browse/HDFS-5790) | LeaseManager.findPath is very slow when many leases need recovery |  Major | namenode, performance | Todd Lipcon | Todd Lipcon |
+| [HDFS-5780](https://issues.apache.org/jira/browse/HDFS-5780) | TestRBWBlockInvalidation times out intemittently on branch-2 |  Major | . | Mit Desai | Mit Desai |
+| [HDFS-5767](https://issues.apache.org/jira/browse/HDFS-5767) | NFS implementation assumes userName userId mapping to be unique, which is not true sometimes |  Blocker | nfs | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-5759](https://issues.apache.org/jira/browse/HDFS-5759) | Web UI does not show up during the period of loading FSImage |  Major | . | Haohui Mai | Haohui Mai |
+| [HDFS-5742](https://issues.apache.org/jira/browse/HDFS-5742) | DatanodeCluster (mini cluster of DNs) fails to start |  Minor | test | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-5716](https://issues.apache.org/jira/browse/HDFS-5716) | Allow WebHDFS to use pluggable authentication filter |  Major | webhdfs | Haohui Mai | Haohui Mai |
+| [HDFS-5705](https://issues.apache.org/jira/browse/HDFS-5705) | TestSecondaryNameNodeUpgrade#testChangeNsIDFails may fail due to ConcurrentModificationException |  Major | datanode | Ted Yu | Ted Yu |
+| [HDFS-5626](https://issues.apache.org/jira/browse/HDFS-5626) | dfsadmin -report shows incorrect cache values |  Major | caching | Stephen Chu | Colin Patrick McCabe |
+| [HDFS-5516](https://issues.apache.org/jira/browse/HDFS-5516) | WebHDFS does not require user name when anonymous http requests are disallowed. |  Major | webhdfs | Chris Nauroth | Miodrag Radulovic |
+| [HDFS-5492](https://issues.apache.org/jira/browse/HDFS-5492) | Port HDFS-2069 (Incorrect default trash interval in the docs) to trunk |  Minor | documentation | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-5339](https://issues.apache.org/jira/browse/HDFS-5339) | WebHDFS URI does not accept logical nameservices when security is enabled |  Major | webhdfs | Stephen Chu | Haohui Mai |
+| [HDFS-5244](https://issues.apache.org/jira/browse/HDFS-5244) | TestNNStorageRetentionManager#testPurgeMultipleDirs fails |  Major | test | Jinghui Wang | Jinghui Wang |
+| [HDFS-5064](https://issues.apache.org/jira/browse/HDFS-5064) | Standby checkpoints should not block concurrent readers |  Major | ha, namenode | Aaron T. Myers | Aaron T. Myers |
+| [HDFS-4858](https://issues.apache.org/jira/browse/HDFS-4858) | HDFS DataNode to NameNode RPC should timeout |  Minor | datanode | Jagane Sundar | Henry Wang |
+| [HDFS-3969](https://issues.apache.org/jira/browse/HDFS-3969) | Small bug fixes and improvements for disk locations API |  Major | hdfs-client | Todd Lipcon | Todd Lipcon |
+| [HDFS-3128](https://issues.apache.org/jira/browse/HDFS-3128) | Unit tests should not use a test root in /tmp |  Minor | test | Eli Collins | Andrew Wang |
+| [MAPREDUCE-5813](https://issues.apache.org/jira/browse/MAPREDUCE-5813) | YarnChild does not load job.xml with mapreduce.job.classloader=true |  Blocker | mrv2, task | Gera Shegalov | Gera Shegalov |
+| [MAPREDUCE-5810](https://issues.apache.org/jira/browse/MAPREDUCE-5810) | TestStreamingTaskLog#testStreamingTaskLogWithHadoopCmd is failing |  Major | contrib/streaming | Mit Desai | Akira AJISAKA |
+| [MAPREDUCE-5806](https://issues.apache.org/jira/browse/MAPREDUCE-5806) | Log4j settings in container-log4j.properties cannot be overridden |  Major | . | Eugene Koifman | Varun Vasudev |
+| [MAPREDUCE-5805](https://issues.apache.org/jira/browse/MAPREDUCE-5805) | Unable to parse launch time from job history file |  Major | jobhistoryserver | Fengdong Yu | Akira AJISAKA |
+| [MAPREDUCE-5795](https://issues.apache.org/jira/browse/MAPREDUCE-5795) | Job should be marked as Failed if it is recovered from commit. |  Major | . | Yesha Vora | Xuan Gong |
+| [MAPREDUCE-5794](https://issues.apache.org/jira/browse/MAPREDUCE-5794) | SliveMapper always uses default FileSystem. |  Minor | test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [MAPREDUCE-5791](https://issues.apache.org/jira/browse/MAPREDUCE-5791) | Shuffle phase is slow in Windows - FadviseFileRegion::transferTo does not read disks efficiently |  Major | client | Nikola Vujic | Nikola Vujic |
+| [MAPREDUCE-5789](https://issues.apache.org/jira/browse/MAPREDUCE-5789) | Average Reduce time is incorrect on Job Overview page |  Major | jobhistoryserver, webapps | Rushabh S Shah | Rushabh S Shah |
+| [MAPREDUCE-5780](https://issues.apache.org/jira/browse/MAPREDUCE-5780) | SliveTest always uses default FileSystem |  Minor | test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [MAPREDUCE-5778](https://issues.apache.org/jira/browse/MAPREDUCE-5778) | JobSummary does not escape newlines in the job name |  Major | jobhistoryserver | Jason Lowe | Akira AJISAKA |
+| [MAPREDUCE-5770](https://issues.apache.org/jira/browse/MAPREDUCE-5770) | Redirection from AM-URL is broken with HTTPS\_ONLY policy |  Major | . | Yesha Vora | Jian He |
+| [MAPREDUCE-5769](https://issues.apache.org/jira/browse/MAPREDUCE-5769) | Unregistration to RM should not be called if AM is crashed before registering with RM |  Major | . | Rohith Sharma K S | Rohith Sharma K S |
+| [MAPREDUCE-5768](https://issues.apache.org/jira/browse/MAPREDUCE-5768) | TestMRJobs.testContainerRollingLog fails on trunk |  Major | . | Zhijie Shen | Gera Shegalov |
+| [MAPREDUCE-5766](https://issues.apache.org/jira/browse/MAPREDUCE-5766) | Ping messages from attempts should be moved to DEBUG |  Minor | applicationmaster | Ramya Sunil | Jian He |
+| [MAPREDUCE-5757](https://issues.apache.org/jira/browse/MAPREDUCE-5757) | ConcurrentModificationException in JobControl.toList |  Major | client | Jason Lowe | Jason Lowe |
+| [MAPREDUCE-5751](https://issues.apache.org/jira/browse/MAPREDUCE-5751) | MR app master fails to start in some cases if mapreduce.job.classloader is true |  Major | . | Sangjin Lee | Sangjin Lee |
+| [MAPREDUCE-5746](https://issues.apache.org/jira/browse/MAPREDUCE-5746) | Job diagnostics can implicate wrong task for a failed job |  Major | jobhistoryserver | Jason Lowe | Jason Lowe |
+| [MAPREDUCE-5699](https://issues.apache.org/jira/browse/MAPREDUCE-5699) | Allow setting tags on MR jobs |  Major | applicationmaster | Karthik Kambatla | Karthik Kambatla |
+| [MAPREDUCE-5688](https://issues.apache.org/jira/browse/MAPREDUCE-5688) | TestStagingCleanup fails intermittently with JDK7 |  Major | . | Mit Desai | Mit Desai |
+| [MAPREDUCE-5670](https://issues.apache.org/jira/browse/MAPREDUCE-5670) | CombineFileRecordReader should report progress when moving to the next file |  Minor | mrv2 | Jason Lowe | Chen He |
+| [MAPREDUCE-5570](https://issues.apache.org/jira/browse/MAPREDUCE-5570) | Map task attempt with fetch failure has incorrect attempt finish time |  Major | mr-am, mrv2 | Jason Lowe | Rushabh S Shah |
+| [MAPREDUCE-5028](https://issues.apache.org/jira/browse/MAPREDUCE-5028) | Maps fail when io.sort.mb is set to high value |  Critical | . | Karthik Kambatla | Karthik Kambatla |
+| [MAPREDUCE-4052](https://issues.apache.org/jira/browse/MAPREDUCE-4052) | Windows eclipse cannot submit job from Windows client to Linux/Unix Hadoop cluster. |  Major | job submission | xieguiming | Jian He |
+| [YARN-1873](https://issues.apache.org/jira/browse/YARN-1873) | TestDistributedShell#testDSShell fails when the test cases are out of order |  Major | . | Mit Desai | Mit Desai |
+| [YARN-1867](https://issues.apache.org/jira/browse/YARN-1867) | NPE while fetching apps via the REST API |  Blocker | resourcemanager | Karthik Kambatla | Vinod Kumar Vavilapalli |
+| [YARN-1866](https://issues.apache.org/jira/browse/YARN-1866) | YARN RM fails to load state store with delegation token parsing error |  Blocker | . | Arpit Gupta | Jian He |
+| [YARN-1859](https://issues.apache.org/jira/browse/YARN-1859) | WebAppProxyServlet will throw ApplicationNotFoundException if the app is no longer cached in RM |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1852](https://issues.apache.org/jira/browse/YARN-1852) | Application recovery throws InvalidStateTransitonException for FAILED and KILLED jobs |  Major | resourcemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-1849](https://issues.apache.org/jira/browse/YARN-1849) | NPE in ResourceTrackerService#registerNodeManager for UAM |  Blocker | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1846](https://issues.apache.org/jira/browse/YARN-1846) | TestRM#testNMTokenSentForNormalContainer assumes CapacityScheduler |  Major | . | Robert Kanter | Robert Kanter |
+| [YARN-1839](https://issues.apache.org/jira/browse/YARN-1839) | Capacity scheduler preempts an AM out. AM attempt 2 fails to launch task container with SecretManager$InvalidToken: No NMToken sent |  Critical | applications, capacityscheduler | Tassapol Athiapinya | Jian He |
+| [YARN-1833](https://issues.apache.org/jira/browse/YARN-1833) | TestRMAdminService Fails in trunk and branch-2 : Assert Fails due to different count of UserGroups for currentUser() |  Major | . | Mit Desai | Mit Desai |
+| [YARN-1830](https://issues.apache.org/jira/browse/YARN-1830) | TestRMRestart.testQueueMetricsOnRMRestart failure |  Major | resourcemanager | Karthik Kambatla | Zhijie Shen |
+| [YARN-1824](https://issues.apache.org/jira/browse/YARN-1824) | Make Windows client work with Linux/Unix cluster |  Major | . | Jian He | Jian He |
+| [YARN-1793](https://issues.apache.org/jira/browse/YARN-1793) | yarn application -kill doesn't kill UnmanagedAMs |  Critical | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1788](https://issues.apache.org/jira/browse/YARN-1788) | AppsCompleted/AppsKilled metric is incorrect when MR job is killed with yarn application -kill |  Critical | resourcemanager | Tassapol Athiapinya | Varun Vasudev |
+| [YARN-1785](https://issues.apache.org/jira/browse/YARN-1785) | FairScheduler treats app lookup failures as ERRORs |  Major | . | bc Wong | bc Wong |
+| [YARN-1783](https://issues.apache.org/jira/browse/YARN-1783) | yarn application does not make any progress even when no other application is running when RM is being restarted in the background |  Critical | . | Arpit Gupta | Jian He |
+| [YARN-1774](https://issues.apache.org/jira/browse/YARN-1774) | FS: Submitting to non-leaf queue throws NPE |  Blocker | fairscheduler | Anubhav Dhoot | Anubhav Dhoot |
+| [YARN-1768](https://issues.apache.org/jira/browse/YARN-1768) | yarn kill non-existent application is too verbose |  Minor | client | Hitesh Shah | Tsuyoshi Ozawa |
+| [YARN-1760](https://issues.apache.org/jira/browse/YARN-1760) | TestRMAdminService assumes CapacityScheduler |  Trivial | . | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1758](https://issues.apache.org/jira/browse/YARN-1758) | MiniYARNCluster broken post YARN-1666 |  Blocker | . | Hitesh Shah | Xuan Gong |
+| [YARN-1752](https://issues.apache.org/jira/browse/YARN-1752) | Unexpected Unregistered event at Attempt Launched state |  Major | . | Jian He | Rohith Sharma K S |
+| [YARN-1748](https://issues.apache.org/jira/browse/YARN-1748) | hadoop-yarn-server-tests packages core-site.xml breaking downstream tests |  Blocker | . | Sravya Tirukkovalur | Sravya Tirukkovalur |
+| [YARN-1742](https://issues.apache.org/jira/browse/YARN-1742) | Fix javadoc of parameter DEFAULT\_NM\_MIN\_HEALTHY\_DISKS\_FRACTION |  Trivial | documentation | Akira AJISAKA | Akira AJISAKA |
+| [YARN-1724](https://issues.apache.org/jira/browse/YARN-1724) | Race condition in Fair Scheduler when continuous scheduling is turned on |  Critical | scheduler | Sandy Ryza | Sandy Ryza |
+| [YARN-1721](https://issues.apache.org/jira/browse/YARN-1721) | When moving app between queues in Fair Scheduler, grab lock on FSSchedulerApp |  Critical | scheduler | Sandy Ryza | Sandy Ryza |
+| [YARN-1697](https://issues.apache.org/jira/browse/YARN-1697) | NodeManager reports negative running containers |  Major | nodemanager | Sandy Ryza | Sandy Ryza |
+| [YARN-1692](https://issues.apache.org/jira/browse/YARN-1692) | ConcurrentModificationException in fair scheduler AppSchedulable |  Major | scheduler | Sangjin Lee | Sangjin Lee |
+| [YARN-1689](https://issues.apache.org/jira/browse/YARN-1689) | RMAppAttempt is not killed when RMApp is at ACCEPTED |  Critical | resourcemanager | Deepesh Khandelwal | Vinod Kumar Vavilapalli |
+| [YARN-1686](https://issues.apache.org/jira/browse/YARN-1686) | NodeManager.resyncWithRM() does not handle exception which cause NodeManger to Hang. |  Major | nodemanager | Rohith Sharma K S | Rohith Sharma K S |
+| [YARN-1673](https://issues.apache.org/jira/browse/YARN-1673) | Valid yarn kill application prints out help message. |  Blocker | client | Tassapol Athiapinya | Mayank Bansal |
+| [YARN-1672](https://issues.apache.org/jira/browse/YARN-1672) | YarnConfiguration is missing a default for yarn.nodemanager.log.retain-seconds |  Trivial | nodemanager | Karthik Kambatla | Naren Koneru |
+| [YARN-1670](https://issues.apache.org/jira/browse/YARN-1670) | aggregated log writer can write more log data then it says is the log length |  Critical | . | Thomas Graves | Mit Desai |
+| [YARN-1661](https://issues.apache.org/jira/browse/YARN-1661) | AppMaster logs says failing even if an application does succeed. |  Major | applications/distributed-shell | Tassapol Athiapinya | Vinod Kumar Vavilapalli |
+| [YARN-1632](https://issues.apache.org/jira/browse/YARN-1632) | TestApplicationMasterServices should be under org.apache.hadoop.yarn.server.resourcemanager package |  Minor | . | Chen He | Chen He |
+| [YARN-1617](https://issues.apache.org/jira/browse/YARN-1617) | Remove ancient comment and surround LOG.debug in AppSchedulingInfo.allocate |  Major | scheduler | Sandy Ryza | Sandy Ryza |
+| [YARN-1591](https://issues.apache.org/jira/browse/YARN-1591) | TestResourceTrackerService fails randomly on trunk |  Major | . | Vinod Kumar Vavilapalli | Tsuyoshi Ozawa |
+| [YARN-1590](https://issues.apache.org/jira/browse/YARN-1590) | \_HOST doesn't expand properly for RM, NM, ProxyServer and JHS |  Major | resourcemanager | Mohammad Kamrul Islam | Mohammad Kamrul Islam |
+| [YARN-1553](https://issues.apache.org/jira/browse/YARN-1553) | Do not use HttpConfig.isSecure() in YARN |  Major | . | Haohui Mai | Haohui Mai |
+| [YARN-1531](https://issues.apache.org/jira/browse/YARN-1531) | True up yarn command documentation |  Major | documentation | Akira AJISAKA | Akira AJISAKA |
+| [YARN-1528](https://issues.apache.org/jira/browse/YARN-1528) | Allow setting auth for ZK connections |  Blocker | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1470](https://issues.apache.org/jira/browse/YARN-1470) | Add audience annotation to MiniYARNCluster |  Major | . | Sandy Ryza | Anubhav Dhoot |
+| [YARN-1444](https://issues.apache.org/jira/browse/YARN-1444) | RM crashes when node resource request sent without corresponding off-switch request |  Blocker | client, resourcemanager | Robert Grandl | Wangda Tan |
+| [YARN-1417](https://issues.apache.org/jira/browse/YARN-1417) | RM may issue expired container tokens to AM while issuing new containers. |  Blocker | . | Omkar Vinit Joshi | Jian He |
+| [YARN-1398](https://issues.apache.org/jira/browse/YARN-1398) | Deadlock in capacity scheduler leaf queue and parent queue for getQueueInfo and completedContainer call |  Blocker | resourcemanager | Sunil G | Vinod Kumar Vavilapalli |
+| [YARN-1301](https://issues.apache.org/jira/browse/YARN-1301) | Need to log the blacklist additions/removals when YarnSchedule#allocate |  Minor | . | Zhijie Shen | Tsuyoshi Ozawa |
+| [YARN-1285](https://issues.apache.org/jira/browse/YARN-1285) | Inconsistency of default "yarn.acl.enable" value |  Major | . | Zhijie Shen | Kenji Kikushima |
+| [YARN-1206](https://issues.apache.org/jira/browse/YARN-1206) | AM container log link broken on NM web page |  Blocker | . | Jian He | Rohith Sharma K S |
+| [YARN-1166](https://issues.apache.org/jira/browse/YARN-1166) | YARN 'appsFailed' metric should be of type 'counter' |  Blocker | resourcemanager | Srimanth Gunturi | Zhijie Shen |
+| [YARN-1071](https://issues.apache.org/jira/browse/YARN-1071) | ResourceManager's decommissioned and lost node count is 0 after restart |  Major | resourcemanager | Srimanth Gunturi | Jian He |
+| [YARN-713](https://issues.apache.org/jira/browse/YARN-713) | ResourceManager can exit unexpectedly if DNS is unavailable |  Critical | resourcemanager | Jason Lowe | Jian He |
+
+
+### TESTS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-9525](https://issues.apache.org/jira/browse/HADOOP-9525) | Add tests that validate winutils chmod behavior on folders |  Major | test, util | Ivan Mitic | Ivan Mitic |
+| [HDFS-5953](https://issues.apache.org/jira/browse/HDFS-5953) | TestBlockReaderFactory fails if libhadoop.so has not been built |  Major | . | Ted Yu | Akira AJISAKA |
+| [HDFS-5936](https://issues.apache.org/jira/browse/HDFS-5936) | MiniDFSCluster does not clean data left behind by SecondaryNameNode. |  Major | namenode, test | Andrew Wang | Binglin Chang |
+| [HDFS-5882](https://issues.apache.org/jira/browse/HDFS-5882) | TestAuditLogs is flaky |  Minor | . | Jimmy Xiang | Jimmy Xiang |
+| [HDFS-5672](https://issues.apache.org/jira/browse/HDFS-5672) | TestHASafeMode#testSafeBlockTracking fails in trunk |  Major | namenode | Ted Yu | Jing Zhao |
+| [YARN-1863](https://issues.apache.org/jira/browse/YARN-1863) | TestRMFailover fails with 'AssertionError: null' |  Blocker | . | Ted Yu | Xuan Gong |
+| [YARN-1855](https://issues.apache.org/jira/browse/YARN-1855) | TestRMFailover#testRMWebAppRedirect fails in trunk |  Critical | . | Ted Yu | Zhijie Shen |
+| [YARN-1854](https://issues.apache.org/jira/browse/YARN-1854) | Race condition in TestRMHA#testStartAndTransitions |  Blocker | . | Mit Desai | Rohith Sharma K S |
+
+
+### SUB-TASKS:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HADOOP-10449](https://issues.apache.org/jira/browse/HADOOP-10449) | Fix the javac warnings in the security packages. |  Minor | security | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HADOOP-10437](https://issues.apache.org/jira/browse/HADOOP-10437) | Fix the javac warnings in the conf and the util package |  Minor | conf, util | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HADOOP-10407](https://issues.apache.org/jira/browse/HADOOP-10407) | Fix the javac warnings in the ipc package. |  Minor | ipc | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HADOOP-10399](https://issues.apache.org/jira/browse/HADOOP-10399) | FileContext API for ACLs. |  Major | fs | Chris Nauroth | Vinayakumar B |
+| [HADOOP-10393](https://issues.apache.org/jira/browse/HADOOP-10393) | Fix hadoop-auth javac warnings |  Minor | security | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HADOOP-10285](https://issues.apache.org/jira/browse/HADOOP-10285) | Admin interface to swap callqueue at runtime |  Major | . | Chris Li | Chris Li |
+| [HADOOP-10280](https://issues.apache.org/jira/browse/HADOOP-10280) | Make Schedulables return a configurable identity of user or group |  Major | . | Chris Li | Chris Li |
+| [HADOOP-10278](https://issues.apache.org/jira/browse/HADOOP-10278) | Refactor to make CallQueue pluggable |  Major | ipc | Chris Li | Chris Li |
+| [HDFS-6124](https://issues.apache.org/jira/browse/HDFS-6124) | Add final modifier to class members |  Major | . | Suresh Srinivas | Suresh Srinivas |
+| [HDFS-6086](https://issues.apache.org/jira/browse/HDFS-6086) | Fix a case where zero-copy or no-checksum reads were not allowed even when the block was cached |  Major | datanode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6076](https://issues.apache.org/jira/browse/HDFS-6076) | SimulatedDataSet should not create DatanodeRegistration with namenode layout version and type |  Minor | datanode, test | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-6061](https://issues.apache.org/jira/browse/HDFS-6061) | Allow dfs.datanode.shared.file.descriptor.path to contain multiple entries and fall back when needed |  Major | datanode | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6060](https://issues.apache.org/jira/browse/HDFS-6060) | NameNode should not check DataNode layout version |  Major | namenode | Brandon Li | Brandon Li |
+| [HDFS-6046](https://issues.apache.org/jira/browse/HDFS-6046) | add dfs.client.mmap.enabled |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6040](https://issues.apache.org/jira/browse/HDFS-6040) | fix DFSClient issue without libhadoop.so and some other ShortCircuitShm cleanups |  Blocker | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-6038](https://issues.apache.org/jira/browse/HDFS-6038) | Allow JournalNode to handle editlog produced by new release with future layoutversion |  Major | journal-node, namenode | Haohui Mai | Jing Zhao |
+| [HDFS-5986](https://issues.apache.org/jira/browse/HDFS-5986) | Capture the number of blocks pending deletion on namenode webUI |  Major | namenode | Suresh Srinivas | Chris Nauroth |
+| [HDFS-5973](https://issues.apache.org/jira/browse/HDFS-5973) | add DomainSocket#shutdown method |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5956](https://issues.apache.org/jira/browse/HDFS-5956) | A file size is multiplied by the replication factor in 'hdfs oiv -p FileDistribution' option |  Major | tools | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-5950](https://issues.apache.org/jira/browse/HDFS-5950) | The DFSClient and DataNode should use shared memory segments to communicate short-circuit information |  Major | datanode, hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5942](https://issues.apache.org/jira/browse/HDFS-5942) | Fix javadoc in OfflineImageViewer |  Minor | documentation, tools | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-5940](https://issues.apache.org/jira/browse/HDFS-5940) | Minor cleanups to ShortCircuitReplica, FsDatasetCache, and DomainSocketWatcher |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5938](https://issues.apache.org/jira/browse/HDFS-5938) | Make BlockReaderFactory#BlockReaderPeer a static class |  Trivial | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5898](https://issues.apache.org/jira/browse/HDFS-5898) | Allow NFS gateway to login/relogin from its kerberos keytab |  Major | nfs | Jing Zhao | Abin Shahab |
+| [HDFS-5868](https://issues.apache.org/jira/browse/HDFS-5868) | Make hsync implementation pluggable |  Major | datanode | Taylor, Buddy | Taylor, Buddy |
+| [HDFS-5866](https://issues.apache.org/jira/browse/HDFS-5866) | '-maxSize' and '-step' option fail in OfflineImageViewer |  Major | tools | Akira AJISAKA | Akira AJISAKA |
+| [HDFS-5847](https://issues.apache.org/jira/browse/HDFS-5847) | Consolidate INodeReference into a separate section |  Major | . | Haohui Mai | Jing Zhao |
+| [HDFS-5810](https://issues.apache.org/jira/browse/HDFS-5810) | Unify mmap cache and short-circuit file descriptor cache |  Major | hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5746](https://issues.apache.org/jira/browse/HDFS-5746) | add ShortCircuitSharedMemorySegment |  Major | datanode, hdfs-client | Colin Patrick McCabe | Colin Patrick McCabe |
+| [HDFS-5726](https://issues.apache.org/jira/browse/HDFS-5726) | Fix compilation error in AbstractINodeDiff for JDK7 |  Minor | namenode | Jing Zhao | Jing Zhao |
+| [HDFS-5715](https://issues.apache.org/jira/browse/HDFS-5715) | Use Snapshot ID to indicate the corresponding Snapshot for a FileDiff/DirectoryDiff |  Major | namenode | Jing Zhao | Jing Zhao |
+| [HDFS-5647](https://issues.apache.org/jira/browse/HDFS-5647) | Merge INodeDirectory.Feature and INodeFile.Feature |  Major | namenode | Haohui Mai | Haohui Mai |
+| [HDFS-5638](https://issues.apache.org/jira/browse/HDFS-5638) | HDFS implementation of FileContext API for ACLs. |  Major | hdfs-client | Chris Nauroth | Vinayakumar B |
+| [HDFS-5632](https://issues.apache.org/jira/browse/HDFS-5632) | Add Snapshot feature to INodeDirectory |  Major | namenode | Jing Zhao | Jing Zhao |
+| [HDFS-5623](https://issues.apache.org/jira/browse/HDFS-5623) | NameNode: add tests for skipping ACL enforcement when permission checks are disabled, user is superuser or user is member of supergroup. |  Major | namenode | Chris Nauroth | Chris Nauroth |
+| [HDFS-5554](https://issues.apache.org/jira/browse/HDFS-5554) | Add Snapshot Feature to INodeFile |  Major | namenode | Jing Zhao | Jing Zhao |
+| [HDFS-5537](https://issues.apache.org/jira/browse/HDFS-5537) | Remove FileWithSnapshot interface |  Major | namenode, snapshots | Jing Zhao | Jing Zhao |
+| [HDFS-5531](https://issues.apache.org/jira/browse/HDFS-5531) | Combine the getNsQuota() and getDsQuota() methods in INode |  Minor | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-5483](https://issues.apache.org/jira/browse/HDFS-5483) | NN should gracefully handle multiple block replicas on same DN |  Major | namenode | Arpit Agarwal | Arpit Agarwal |
+| [HDFS-5286](https://issues.apache.org/jira/browse/HDFS-5286) | Flatten INodeDirectory hierarchy: add DirectoryWithQuotaFeature |  Major | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [HDFS-5285](https://issues.apache.org/jira/browse/HDFS-5285) | Flatten INodeFile hierarchy: Add UnderContruction Feature |  Major | namenode | Tsz Wo Nicholas Sze | Jing Zhao |
+| [HDFS-5167](https://issues.apache.org/jira/browse/HDFS-5167) | Add metrics about the NameNode retry cache |  Minor | ha, namenode | Jing Zhao | Tsuyoshi Ozawa |
+| [HDFS-4564](https://issues.apache.org/jira/browse/HDFS-4564) | Webhdfs returns incorrect http response codes for denied operations |  Blocker | webhdfs | Daryn Sharp | Daryn Sharp |
+| [MAPREDUCE-5787](https://issues.apache.org/jira/browse/MAPREDUCE-5787) | Modify ShuffleHandler to support Keep-Alive |  Critical | nodemanager | Rajesh Balamohan | Rajesh Balamohan |
+| [YARN-1893](https://issues.apache.org/jira/browse/YARN-1893) | Make ApplicationMasterProtocol#allocate AtMostOnce |  Blocker | resourcemanager | Xuan Gong | Xuan Gong |
+| [YARN-1850](https://issues.apache.org/jira/browse/YARN-1850) | Make enabling timeline service configurable |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1838](https://issues.apache.org/jira/browse/YARN-1838) | Timeline service getEntities API should provide ability to get entities from given id |  Major | . | Srimanth Gunturi | Billie Rinaldi |
+| [YARN-1821](https://issues.apache.org/jira/browse/YARN-1821) | NPE on registerNodeManager if the request has containers for UnmanagedAMs |  Blocker | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1816](https://issues.apache.org/jira/browse/YARN-1816) | Succeeded application remains in accepted after RM restart |  Major | . | Arpit Gupta | Jian He |
+| [YARN-1812](https://issues.apache.org/jira/browse/YARN-1812) | Job stays in PREP state for long time after RM Restarts |  Major | . | Yesha Vora | Jian He |
+| [YARN-1811](https://issues.apache.org/jira/browse/YARN-1811) | RM HA: AM link broken if the AM is on nodes other than RM |  Major | resourcemanager | Robert Kanter | Robert Kanter |
+| [YARN-1800](https://issues.apache.org/jira/browse/YARN-1800) | YARN NodeManager with java.util.concurrent.RejectedExecutionException |  Critical | nodemanager | Paul Isaychuk | Varun Vasudev |
+| [YARN-1787](https://issues.apache.org/jira/browse/YARN-1787) | yarn applicationattempt/container print wrong usage information |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1781](https://issues.apache.org/jira/browse/YARN-1781) | NM should allow users to specify max disk utilization for local disks |  Major | nodemanager | Varun Vasudev | Varun Vasudev |
+| [YARN-1780](https://issues.apache.org/jira/browse/YARN-1780) | Improve logging in timeline service |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1776](https://issues.apache.org/jira/browse/YARN-1776) | renewDelegationToken should survive RM failover |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1775](https://issues.apache.org/jira/browse/YARN-1775) | Create SMAPBasedProcessTree to get PSS information |  Major | nodemanager | Rajesh Balamohan | Rajesh Balamohan |
+| [YARN-1766](https://issues.apache.org/jira/browse/YARN-1766) | When RM does the initiation, it should use loaded Configuration instead of bootstrap configuration. |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1765](https://issues.apache.org/jira/browse/YARN-1765) | Write test cases to verify that killApplication API works in RM HA |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1764](https://issues.apache.org/jira/browse/YARN-1764) | Handle RM fail overs after the submitApplication call. |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1761](https://issues.apache.org/jira/browse/YARN-1761) | RMAdminCLI should check whether HA is enabled before executes transitionToActive/transitionToStandby |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1749](https://issues.apache.org/jira/browse/YARN-1749) | Review AHS configs and sync them up with the timeline-service configs |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1734](https://issues.apache.org/jira/browse/YARN-1734) | RM should get the updated Configurations when it transits from Standby to Active |  Critical | . | Xuan Gong | Xuan Gong |
+| [YARN-1732](https://issues.apache.org/jira/browse/YARN-1732) | Change types of related entities and primary filters in ATSEntity |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1730](https://issues.apache.org/jira/browse/YARN-1730) | Leveldb timeline store needs simple write locking |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1729](https://issues.apache.org/jira/browse/YARN-1729) | TimelineWebServices always passes primary and secondary filters as strings |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1719](https://issues.apache.org/jira/browse/YARN-1719) | ATSWebServices produces jersey warnings |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1717](https://issues.apache.org/jira/browse/YARN-1717) | Enable offline deletion of entries in leveldb timeline store |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1706](https://issues.apache.org/jira/browse/YARN-1706) | Create an utility function to dump timeline records to json |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1704](https://issues.apache.org/jira/browse/YARN-1704) | Review LICENSE and NOTICE to reflect new levelDB releated libraries being used |  Blocker | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1698](https://issues.apache.org/jira/browse/YARN-1698) | Replace MemoryApplicationTimelineStore with LeveldbApplicationTimelineStore as default |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1690](https://issues.apache.org/jira/browse/YARN-1690) | Sending timeline entities+events from Distributed shell |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-1687](https://issues.apache.org/jira/browse/YARN-1687) | Refactoring timeline classes to remove "app" related words |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1685](https://issues.apache.org/jira/browse/YARN-1685) | Bugs around log URL |  Major | . | Mayank Bansal | Zhijie Shen |
+| [YARN-1684](https://issues.apache.org/jira/browse/YARN-1684) | Fix history server heap size in yarn script |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1676](https://issues.apache.org/jira/browse/YARN-1676) | Make admin refreshUserToGroupsMappings of configuration work across RM failover |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1669](https://issues.apache.org/jira/browse/YARN-1669) | Make admin refreshServiceAcls work across RM failover |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1668](https://issues.apache.org/jira/browse/YARN-1668) | Make admin refreshAdminAcls work across RM failover |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1667](https://issues.apache.org/jira/browse/YARN-1667) | Make admin refreshSuperUserGroupsConfiguration work across RM failover |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1666](https://issues.apache.org/jira/browse/YARN-1666) | Make admin refreshNodes work across RM failover |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1665](https://issues.apache.org/jira/browse/YARN-1665) | Set better defaults for HA configs for automatic failover |  Major | resourcemanager | Arpit Gupta | Xuan Gong |
+| [YARN-1660](https://issues.apache.org/jira/browse/YARN-1660) | add the ability to set yarn.resourcemanager.hostname.rm-id instead of setting all the various host:port properties for RM |  Major | resourcemanager | Arpit Gupta | Xuan Gong |
+| [YARN-1659](https://issues.apache.org/jira/browse/YARN-1659) | Define the ApplicationTimelineStore store as an abstraction for implementing different storage impls for storing timeline information |  Major | . | Billie Rinaldi | Billie Rinaldi |
+| [YARN-1658](https://issues.apache.org/jira/browse/YARN-1658) | Webservice should redirect to active RM when HA is enabled. |  Major | . | Cindy Li | Cindy Li |
+| [YARN-1641](https://issues.apache.org/jira/browse/YARN-1641) | ZK store should attempt a write periodically to ensure it is still Active |  Major | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1640](https://issues.apache.org/jira/browse/YARN-1640) | Manual Failover does not work in secure clusters |  Blocker | . | Xuan Gong | Xuan Gong |
+| [YARN-1639](https://issues.apache.org/jira/browse/YARN-1639) | YARM RM HA requires different configs on different RM hosts |  Major | resourcemanager | Arpit Gupta | Xuan Gong |
+| [YARN-1637](https://issues.apache.org/jira/browse/YARN-1637) | Implement a client library for java users to post entities+events |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-1636](https://issues.apache.org/jira/browse/YARN-1636) | Implement timeline related web-services inside AHS for storing and retrieving entities+events |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-1635](https://issues.apache.org/jira/browse/YARN-1635) | Implement a Leveldb based ApplicationTimelineStore |  Major | . | Vinod Kumar Vavilapalli | Billie Rinaldi |
+| [YARN-1634](https://issues.apache.org/jira/browse/YARN-1634) | Define an in-memory implementation of ApplicationTimelineStore |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-1633](https://issues.apache.org/jira/browse/YARN-1633) | Define user-faced entity, entity-info and event objects |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-1625](https://issues.apache.org/jira/browse/YARN-1625) | mvn apache-rat:check outputs warning message in YARN-321 branch |  Trivial | . | Shinichi Yamashita | Shinichi Yamashita |
+| [YARN-1613](https://issues.apache.org/jira/browse/YARN-1613) | Fix config name YARN\_HISTORY\_SERVICE\_ENABLED |  Major | . | Zhijie Shen | Akira AJISAKA |
+| [YARN-1611](https://issues.apache.org/jira/browse/YARN-1611) | Make admin refresh of capacity scheduler configuration work across RM failover |  Major | . | Xuan Gong | Xuan Gong |
+| [YARN-1605](https://issues.apache.org/jira/browse/YARN-1605) | Fix formatting issues with new module in YARN-321 branch |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1597](https://issues.apache.org/jira/browse/YARN-1597) | FindBugs warnings on YARN-321 branch |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1596](https://issues.apache.org/jira/browse/YARN-1596) | Javadoc failures on YARN-321 branch |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1595](https://issues.apache.org/jira/browse/YARN-1595) | Test failures on YARN-321 branch |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1594](https://issues.apache.org/jira/browse/YARN-1594) | YARN-321 branch needs to be updated after YARN-888 pom changes |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1588](https://issues.apache.org/jira/browse/YARN-1588) | Rebind NM tokens for previous attempt's running containers to the new attempt |  Major | . | Jian He | Jian He |
+| [YARN-1587](https://issues.apache.org/jira/browse/YARN-1587) | [YARN-321] Merge Patch for YARN-321 |  Major | . | Mayank Bansal | Vinod Kumar Vavilapalli |
+| [YARN-1578](https://issues.apache.org/jira/browse/YARN-1578) | Fix how to read history file in FileSystemApplicationHistoryStore |  Major | . | Shinichi Yamashita | Shinichi Yamashita |
+| [YARN-1577](https://issues.apache.org/jira/browse/YARN-1577) | Unmanaged AM is broken because of YARN-1493 |  Blocker | . | Jian He | Jian He |
+| [YARN-1566](https://issues.apache.org/jira/browse/YARN-1566) | Change distributed-shell to retain containers from previous AppAttempt |  Major | . | Jian He | Jian He |
+| [YARN-1555](https://issues.apache.org/jira/browse/YARN-1555) | [YARN-321] Failing tests in org.apache.hadoop.yarn.server.applicationhistoryservice.\* |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1534](https://issues.apache.org/jira/browse/YARN-1534) | TestAHSWebApp failed in YARN-321 branch |  Major | . | Shinichi Yamashita | Shinichi Yamashita |
+| [YARN-1525](https://issues.apache.org/jira/browse/YARN-1525) | Web UI should redirect to active RM when HA is enabled. |  Major | . | Xuan Gong | Cindy Li |
+| [YARN-1521](https://issues.apache.org/jira/browse/YARN-1521) | Mark appropriate protocol methods with the idempotent annotation or AtMostOnce annotation |  Blocker | . | Xuan Gong | Xuan Gong |
+| [YARN-1504](https://issues.apache.org/jira/browse/YARN-1504) | RM changes for moving apps between queues |  Major | resourcemanager | Sandy Ryza | Sandy Ryza |
+| [YARN-1499](https://issues.apache.org/jira/browse/YARN-1499) | Fair Scheduler changes for moving apps between queues |  Major | scheduler | Sandy Ryza | Sandy Ryza |
+| [YARN-1498](https://issues.apache.org/jira/browse/YARN-1498) | Common scheduler changes for moving apps between queues |  Major | resourcemanager | Sandy Ryza | Sandy Ryza |
+| [YARN-1497](https://issues.apache.org/jira/browse/YARN-1497) | Expose moving apps between queues on the command line |  Major | client | Sandy Ryza | Sandy Ryza |
+| [YARN-1496](https://issues.apache.org/jira/browse/YARN-1496) | Protocol additions to allow moving apps between queues |  Major | scheduler | Sandy Ryza | Sandy Ryza |
+| [YARN-1493](https://issues.apache.org/jira/browse/YARN-1493) | Schedulers don't recognize apps separately from app-attempts |  Major | . | Jian He | Jian He |
+| [YARN-1490](https://issues.apache.org/jira/browse/YARN-1490) | RM should optionally not kill all containers when an ApplicationMaster exits |  Major | . | Vinod Kumar Vavilapalli | Jian He |
+| [YARN-1461](https://issues.apache.org/jira/browse/YARN-1461) | RM API and RM changes to handle tags for running jobs |  Major | resourcemanager | Karthik Kambatla | Karthik Kambatla |
+| [YARN-1459](https://issues.apache.org/jira/browse/YARN-1459) | RM services should depend on ConfigurationProvider during startup too |  Major | resourcemanager | Karthik Kambatla | Xuan Gong |
+| [YARN-1428](https://issues.apache.org/jira/browse/YARN-1428) | RM cannot write the final state of RMApp/RMAppAttempt to the application history store in the transition to the final state |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1410](https://issues.apache.org/jira/browse/YARN-1410) | Handle RM fails over after getApplicationID() and before submitApplication(). |  Major | . | Bikas Saha | Xuan Gong |
+| [YARN-1389](https://issues.apache.org/jira/browse/YARN-1389) | ApplicationClientProtocol and ApplicationHistoryProtocol should expose analogous APIs |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-1379](https://issues.apache.org/jira/browse/YARN-1379) | [YARN-321] AHS protocols need to be in yarn proto package name after YARN-1170 |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-1345](https://issues.apache.org/jira/browse/YARN-1345) | Removing FINAL\_SAVING from YarnApplicationAttemptState |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-1266](https://issues.apache.org/jira/browse/YARN-1266) | Implement PB service and client wrappers for ApplicationHistoryProtocol |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-1242](https://issues.apache.org/jira/browse/YARN-1242) | Script changes to start AHS as an individual process |  Major | . | Zhijie Shen | Mayank Bansal |
+| [YARN-1191](https://issues.apache.org/jira/browse/YARN-1191) | [YARN-321] Update artifact versions for application history service |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-1123](https://issues.apache.org/jira/browse/YARN-1123) | [YARN-321] Adding ContainerReport and Protobuf implementation |  Major | . | Zhijie Shen | Mayank Bansal |
+| [YARN-1041](https://issues.apache.org/jira/browse/YARN-1041) | Protocol changes for RM to bind and notify a restarted AM of existing containers |  Major | resourcemanager | Steve Loughran | Jian He |
+| [YARN-1023](https://issues.apache.org/jira/browse/YARN-1023) | [YARN-321] Webservices REST API's support for Application History |  Major | . | Devaraj K | Zhijie Shen |
+| [YARN-1017](https://issues.apache.org/jira/browse/YARN-1017) | Document RM Restart feature |  Blocker | resourcemanager | Jian He | Jian He |
+| [YARN-1007](https://issues.apache.org/jira/browse/YARN-1007) | [YARN-321] Enhance History Reader interface for Containers |  Major | . | Devaraj K | Mayank Bansal |
+| [YARN-987](https://issues.apache.org/jira/browse/YARN-987) | Adding ApplicationHistoryManager responsible for exposing reports to all clients |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-986](https://issues.apache.org/jira/browse/YARN-986) | RM DT token service should have service addresses of both RMs |  Blocker | . | Vinod Kumar Vavilapalli | Karthik Kambatla |
+| [YARN-984](https://issues.apache.org/jira/browse/YARN-984) | [YARN-321] Move classes from applicationhistoryservice.records.pb.impl package to applicationhistoryservice.records.impl.pb |  Major | . | Devaraj K | Devaraj K |
+| [YARN-979](https://issues.apache.org/jira/browse/YARN-979) | [YARN-321] Add more APIs related to ApplicationAttempt and Container in ApplicationHistoryProtocol |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-978](https://issues.apache.org/jira/browse/YARN-978) | [YARN-321] Adding ApplicationAttemptReport and Protobuf implementation |  Major | . | Mayank Bansal | Mayank Bansal |
+| [YARN-975](https://issues.apache.org/jira/browse/YARN-975) | Add a file-system implementation for history-storage |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-974](https://issues.apache.org/jira/browse/YARN-974) | RMContainer should collect more useful information to be recorded in Application-History |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-967](https://issues.apache.org/jira/browse/YARN-967) | [YARN-321] Command Line Interface(CLI) for Reading Application History Storage Data |  Major | . | Devaraj K | Mayank Bansal |
+| [YARN-962](https://issues.apache.org/jira/browse/YARN-962) | Update application\_history\_service.proto |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-956](https://issues.apache.org/jira/browse/YARN-956) | [YARN-321] Add a testable in-memory HistoryStorage |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-955](https://issues.apache.org/jira/browse/YARN-955) | [YARN-321] Implementation of ApplicationHistoryProtocol |  Major | . | Vinod Kumar Vavilapalli | Mayank Bansal |
+| [YARN-954](https://issues.apache.org/jira/browse/YARN-954) | [YARN-321] History Service should create the webUI and wire it to HistoryStorage |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-953](https://issues.apache.org/jira/browse/YARN-953) | [YARN-321] Enable ResourceManager to write history data |  Major | . | Vinod Kumar Vavilapalli | Zhijie Shen |
+| [YARN-947](https://issues.apache.org/jira/browse/YARN-947) | Defining the history data classes for the implementation of the reading/writing interface |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-935](https://issues.apache.org/jira/browse/YARN-935) | YARN-321 branch is broken due to applicationhistoryserver module's pom.xml |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-934](https://issues.apache.org/jira/browse/YARN-934) | HistoryStorage writer interface for Application History Server |  Major | . | Zhijie Shen | Zhijie Shen |
+| [YARN-930](https://issues.apache.org/jira/browse/YARN-930) | Bootstrap ApplicationHistoryService module |  Major | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli |
+| [YARN-925](https://issues.apache.org/jira/browse/YARN-925) | HistoryStorage Reader Interface for Application History Server |  Major | . | Mayank Bansal | Mayank Bansal |
+
+
+### OTHER:
+
+| JIRA | Summary | Priority | Component | Reporter | Contributor |
+|:---- |:---- | :--- |:---- |:---- |:---- |
+| [HDFS-6030](https://issues.apache.org/jira/browse/HDFS-6030) | Remove an unused constructor in INode.java |  Trivial | . | Yongjun Zhang | Yongjun Zhang |
+| [HDFS-6025](https://issues.apache.org/jira/browse/HDFS-6025) | Update findbugsExcludeFile.xml |  Minor | build | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze |
+| [YARN-1891](https://issues.apache.org/jira/browse/YARN-1891) | Document NodeManager health-monitoring |  Minor | . | Varun Vasudev | Varun Vasudev |
+| [YARN-1452](https://issues.apache.org/jira/browse/YARN-1452) | Document the usage of the generic application history and the timeline data service |  Major | . | Zhijie Shen | Zhijie Shen |
+
+


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