http://git-wip-us.apache.org/repos/asf/hadoop/blob/f388a209/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha1/CHANGES.3.0.0-alpha1.md ---------------------------------------------------------------------- diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha1/CHANGES.3.0.0-alpha1.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha1/CHANGES.3.0.0-alpha1.md new file mode 100644 index 0000000..e539a80 --- /dev/null +++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha1/CHANGES.3.0.0-alpha1.md @@ -0,0 +1,3712 @@ + +<!--- +# 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 3.0.0-alpha1 - 2016-08-30 + +### INCOMPATIBLE CHANGES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-8124](https://issues.apache.org/jira/browse/HADOOP-8124) | Remove the deprecated Syncable.sync() method | Major | fs | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-3034](https://issues.apache.org/jira/browse/HDFS-3034) | Remove the deprecated Syncable.sync() method | Major | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-5079](https://issues.apache.org/jira/browse/HDFS-5079) | Cleaning up NNHAStatusHeartbeat.State DatanodeProtocolProtos. | Major | datanode, namenode | Konstantin Shvachko | Tao Luo | +| [HDFS-5570](https://issues.apache.org/jira/browse/HDFS-5570) | Deprecate hftp / hsftp and replace them with webhdfs / swebhdfs | Major | . | Haohui Mai | Haohui Mai | +| [HADOOP-10485](https://issues.apache.org/jira/browse/HADOOP-10485) | Remove dead classes in hadoop-streaming | Major | tools | Haohui Mai | Haohui Mai | +| [HDFS-6246](https://issues.apache.org/jira/browse/HDFS-6246) | Remove 'dfs.support.append' flag from trunk code | Minor | . | Uma Maheswara Rao G | Uma Maheswara Rao G | +| [HADOOP-10474](https://issues.apache.org/jira/browse/HADOOP-10474) | Move o.a.h.record to hadoop-streaming | Major | . | Haohui Mai | Haohui Mai | +| [HDFS-2538](https://issues.apache.org/jira/browse/HDFS-2538) | option to disable fsck dots | Minor | . | Allen Wittenauer | Mohammad Kamrul Islam | +| [HADOOP-9902](https://issues.apache.org/jira/browse/HADOOP-9902) | Shell script rewrite | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11041](https://issues.apache.org/jira/browse/HADOOP-11041) | VersionInfo output specifies subversion | Minor | build | Guo Ruijing | Tsuyoshi Ozawa | +| [MAPREDUCE-5972](https://issues.apache.org/jira/browse/MAPREDUCE-5972) | Fix typo 'programatically' in job.xml (and a few other places) | Trivial | . | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-11356](https://issues.apache.org/jira/browse/HADOOP-11356) | Removed deprecated o.a.h.fs.permission.AccessControlException | Major | . | Haohui Mai | Li Lu | +| [HADOOP-10950](https://issues.apache.org/jira/browse/HADOOP-10950) | rework heap management vars | Major | scripts | Allen Wittenauer | John Smith | +| [MAPREDUCE-5785](https://issues.apache.org/jira/browse/MAPREDUCE-5785) | Derive heap size or mapreduce.\*.memory.mb automatically | Major | mr-am, task | Gera Shegalov | Gera Shegalov | +| [YARN-2428](https://issues.apache.org/jira/browse/YARN-2428) | LCE default banned user list should have yarn | Trivial | nodemanager | Allen Wittenauer | Varun Saxena | +| [MAPREDUCE-5653](https://issues.apache.org/jira/browse/MAPREDUCE-5653) | DistCp does not honour config-overrides for mapreduce.[map,reduce].memory.mb | Major | distcp | Mithun Radhakrishnan | Ratandeep Ratti | +| [HADOOP-11657](https://issues.apache.org/jira/browse/HADOOP-11657) | Align the output of `hadoop fs -du` to be more Unix-like | Minor | . | Nick Dimiduk | Akira Ajisaka | +| [HDFS-7302](https://issues.apache.org/jira/browse/HDFS-7302) | namenode -rollingUpgrade downgrade may finalize a rolling upgrade | Major | namenode | Tsz Wo Nicholas Sze | Kai Sasaki | +| [HADOOP-6857](https://issues.apache.org/jira/browse/HADOOP-6857) | FsShell should report raw disk usage including replication factor | Major | fs | Alex Kozlov | Byron Wong | +| [HADOOP-10115](https://issues.apache.org/jira/browse/HADOOP-10115) | Exclude duplicate jars in hadoop package under different component's lib | Major | build | Vinayakumar B | Vinayakumar B | +| [YARN-3154](https://issues.apache.org/jira/browse/YARN-3154) | Should not upload partial logs for MR jobs or other "short-running' applications | Blocker | nodemanager, resourcemanager | Xuan Gong | Xuan Gong | +| [MAPREDUCE-4424](https://issues.apache.org/jira/browse/MAPREDUCE-4424) | 'mapred job -list' command should show the job name as well | Minor | mrv2 | Harsh J | Avinash Kujur | +| [YARN-3241](https://issues.apache.org/jira/browse/YARN-3241) | FairScheduler handles "invalid" queue names inconsistently | Major | fairscheduler | zhihai xu | zhihai xu | +| [HDFS-7985](https://issues.apache.org/jira/browse/HDFS-7985) | WebHDFS should be always enabled | Major | . | Haohui Mai | Li Lu | +| [HDFS-6353](https://issues.apache.org/jira/browse/HDFS-6353) | Check and make checkpoint before stopping the NameNode | Major | namenode | Suresh Srinivas | Jing Zhao | +| [HADOOP-11553](https://issues.apache.org/jira/browse/HADOOP-11553) | Formalize the shell API | Blocker | documentation, scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11731](https://issues.apache.org/jira/browse/HADOOP-11731) | Rework the changelog and releasenotes | Major | documentation | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11746](https://issues.apache.org/jira/browse/HADOOP-11746) | rewrite test-patch.sh | Major | build, test | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11627](https://issues.apache.org/jira/browse/HADOOP-11627) | Remove io.native.lib.available | Major | native | Akira Ajisaka | Brahma Reddy Battula | +| [HDFS-7281](https://issues.apache.org/jira/browse/HDFS-7281) | Missing block is marked as corrupted block | Major | namenode | Ming Ma | Ming Ma | +| [HDFS-8226](https://issues.apache.org/jira/browse/HDFS-8226) | Non-HA rollback compatibility broken | Blocker | . | J.Andreina | J.Andreina | +| [MAPREDUCE-2632](https://issues.apache.org/jira/browse/MAPREDUCE-2632) | Avoid calling the partitioner when the numReduceTasks is 1. | Major | . | Ravi Teja Ch N V | Sunil G | +| [HDFS-8241](https://issues.apache.org/jira/browse/HDFS-8241) | Remove unused NameNode startup option -finalize | Minor | namenode | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-8332](https://issues.apache.org/jira/browse/HDFS-8332) | DFS client API calls should check filesystem closed | Major | . | Rakesh R | Rakesh R | +| [HADOOP-11698](https://issues.apache.org/jira/browse/HADOOP-11698) | Remove DistCpV1 and Logalyzer | Major | tools/distcp | Allen Wittenauer | Brahma Reddy Battula | +| [HADOOP-11772](https://issues.apache.org/jira/browse/HADOOP-11772) | RPC Invoker relies on static ClientCache which has synchronized(this) blocks | Major | ipc, performance | Gopal V | Haohui Mai | +| [YARN-2336](https://issues.apache.org/jira/browse/YARN-2336) | Fair scheduler REST api returns a missing '[' bracket JSON for deep queue tree | Major | fairscheduler | Kenji Kikushima | Akira Ajisaka | +| [HDFS-8135](https://issues.apache.org/jira/browse/HDFS-8135) | Remove the deprecated FSConstants class | Major | . | Haohui Mai | Li Lu | +| [MAPREDUCE-6336](https://issues.apache.org/jira/browse/MAPREDUCE-6336) | Enable v2 FileOutputCommitter by default | Major | mrv2 | Gera Shegalov | Siqi Li | +| [YARN-41](https://issues.apache.org/jira/browse/YARN-41) | The RM should handle the graceful shutdown of the NM. | Major | nodemanager, resourcemanager | Ravi Teja Ch N V | Devaraj K | +| [HDFS-8591](https://issues.apache.org/jira/browse/HDFS-8591) | Remove support for deprecated configuration key dfs.namenode.decommission.nodes.per.interval | Minor | namenode | Andrew Wang | Andrew Wang | +| [HDFS-6564](https://issues.apache.org/jira/browse/HDFS-6564) | Use slf4j instead of common-logging in hdfs-client | Major | build | Haohui Mai | Rakesh R | +| [MAPREDUCE-6427](https://issues.apache.org/jira/browse/MAPREDUCE-6427) | Fix typo in JobHistoryEventHandler | Minor | . | Brahma Reddy Battula | Ray Chiang | +| [HADOOP-12269](https://issues.apache.org/jira/browse/HADOOP-12269) | Update aws-sdk dependency to 1.10.6; move to aws-sdk-s3 | Major | fs/s3 | Thomas Demoor | Thomas Demoor | +| [HDFS-8895](https://issues.apache.org/jira/browse/HDFS-8895) | Remove deprecated BlockStorageLocation APIs | Major | . | Andrew Wang | Andrew Wang | +| [HDFS-8900](https://issues.apache.org/jira/browse/HDFS-8900) | Compact XAttrs to optimize memory footprint. | Major | namenode | Yi Liu | Yi Liu | +| [HDFS-8981](https://issues.apache.org/jira/browse/HDFS-8981) | Adding revision to data node jmx getVersion() method | Minor | . | Siqi Li | Siqi Li | +| [YARN-4087](https://issues.apache.org/jira/browse/YARN-4087) | Followup fixes after YARN-2019 regarding RM behavior when state-store error occurs | Major | . | Jian He | Jian He | +| [HADOOP-12416](https://issues.apache.org/jira/browse/HADOOP-12416) | Trash messages should be handled by Logger instead of being delivered on System.out | Major | trash | Ashutosh Chauhan | Mingliang Liu | +| [HDFS-9085](https://issues.apache.org/jira/browse/HDFS-9085) | Show renewer information in DelegationTokenIdentifier#toString | Trivial | security | zhihai xu | zhihai xu | +| [HADOOP-12495](https://issues.apache.org/jira/browse/HADOOP-12495) | Fix posix\_spawn error on OS X | Major | util | Allen Wittenauer | Allen Wittenauer | +| [HDFS-9070](https://issues.apache.org/jira/browse/HDFS-9070) | Allow fsck display pending replica location information for being-written blocks | Major | . | Rui Gao | Rui Gao | +| [HDFS-9278](https://issues.apache.org/jira/browse/HDFS-9278) | Fix preferredBlockSize typo in OIV XML output | Trivial | tools | Nicole Pazmany | Nicole Pazmany | +| [HADOOP-10787](https://issues.apache.org/jira/browse/HADOOP-10787) | Rename/remove non-HADOOP\_\*, etc from the shell scripts | Blocker | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12294](https://issues.apache.org/jira/browse/HADOOP-12294) | Throw an Exception when fs.permissions.umask-mode is misconfigured | Major | conf | Chang Li | Chang Li | +| [HADOOP-10465](https://issues.apache.org/jira/browse/HADOOP-10465) | Fix use of generics within SortedMapWritable | Minor | . | Bertrand Dechoux | Bertrand Dechoux | +| [HDFS-5165](https://issues.apache.org/jira/browse/HDFS-5165) | Remove the TotalFiles metrics | Minor | . | Akira Ajisaka | Akira Ajisaka | +| [HDFS-9047](https://issues.apache.org/jira/browse/HDFS-9047) | Retire libwebhdfs | Major | webhdfs | Allen Wittenauer | Haohui Mai | +| [HADOOP-12651](https://issues.apache.org/jira/browse/HADOOP-12651) | Replace dev-support with wrappers to Yetus | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [MAPREDUCE-6613](https://issues.apache.org/jira/browse/MAPREDUCE-6613) | Change mapreduce.jobhistory.jhist.format default from json to binary | Minor | . | Ray Chiang | Ray Chiang | +| [HDFS-9395](https://issues.apache.org/jira/browse/HDFS-9395) | Make HDFS audit logging consistant | Major | . | Kihwal Lee | Kuhu Shukla | +| [HADOOP-12552](https://issues.apache.org/jira/browse/HADOOP-12552) | Fix undeclared/unused dependency to httpclient | Minor | build | Masatake Iwasaki | Masatake Iwasaki | +| [HADOOP-12850](https://issues.apache.org/jira/browse/HADOOP-12850) | pull shell code out of hadoop-dist | Major | build | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11792](https://issues.apache.org/jira/browse/HADOOP-11792) | Remove all of the CHANGES.txt files | Major | build | Allen Wittenauer | Andrew Wang | +| [HADOOP-12857](https://issues.apache.org/jira/browse/HADOOP-12857) | Rework hadoop-tools | Major | build | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12967](https://issues.apache.org/jira/browse/HADOOP-12967) | Remove FileUtil#copyMerge | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-12811](https://issues.apache.org/jira/browse/HADOOP-12811) | Change kms server port number which conflicts with HMaster port number | Critical | kms | Yufeng Jiang | Xiao Chen | +| [YARN-4784](https://issues.apache.org/jira/browse/YARN-4784) | Fairscheduler: defaultQueueSchedulingPolicy should not accept FIFO | Major | fairscheduler | Yufei Gu | Yufei Gu | +| [HDFS-9427](https://issues.apache.org/jira/browse/HDFS-9427) | HDFS should not default to ephemeral ports | Critical | datanode, hdfs-client, namenode | Arpit Agarwal | Xiaobing Zhou | +| [HADOOP-12563](https://issues.apache.org/jira/browse/HADOOP-12563) | Updated utility to create/modify token files | Major | . | Allen Wittenauer | Matthew Paduano | +| [HADOOP-13045](https://issues.apache.org/jira/browse/HADOOP-13045) | hadoop\_add\_classpath is not working in .hadooprc | Major | . | Akira Ajisaka | Allen Wittenauer | +| [MAPREDUCE-6526](https://issues.apache.org/jira/browse/MAPREDUCE-6526) | Remove usage of metrics v1 from hadoop-mapreduce | Blocker | . | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-12504](https://issues.apache.org/jira/browse/HADOOP-12504) | Remove metrics v1 | Blocker | metrics | Akira Ajisaka | Akira Ajisaka | +| [HDFS-10337](https://issues.apache.org/jira/browse/HDFS-10337) | OfflineEditsViewer stats option should print 0 instead of null for the count of operations | Minor | . | Akira Ajisaka | Yiqun Lin | +| [HADOOP-11858](https://issues.apache.org/jira/browse/HADOOP-11858) | [JDK8] Set minimum version of Hadoop 3 to JDK 8 | Blocker | build | Robert Kanter | Robert Kanter | +| [YARN-5035](https://issues.apache.org/jira/browse/YARN-5035) | FairScheduler: Adjust maxAssign dynamically when assignMultiple is turned on | Major | fairscheduler | Karthik Kambatla | Karthik Kambatla | +| [HADOOP-13175](https://issues.apache.org/jira/browse/HADOOP-13175) | Remove hadoop-ant from hadoop-tools | Major | . | Chris Douglas | Chris Douglas | +| [HADOOP-12892](https://issues.apache.org/jira/browse/HADOOP-12892) | fix/rewrite create-release | Blocker | build | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-9613](https://issues.apache.org/jira/browse/HADOOP-9613) | [JDK8] Update jersey version to latest 1.x release | Major | build | Timothy St. Clair | Tsuyoshi Ozawa | +| [HADOOP-13209](https://issues.apache.org/jira/browse/HADOOP-13209) | replace slaves with workers | Major | scripts | John Smith | John Smith | +| [HDFS-6434](https://issues.apache.org/jira/browse/HDFS-6434) | Default permission for creating file should be 644 for WebHdfs/HttpFS | Minor | webhdfs | Juan Yu | Wellington Chevreuil | +| [HADOOP-12864](https://issues.apache.org/jira/browse/HADOOP-12864) | Remove bin/rcc script | Blocker | tools | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12709](https://issues.apache.org/jira/browse/HADOOP-12709) | Cut s3:// from trunk | Major | fs/s3 | Steve Loughran | Mingliang Liu | +| [HADOOP-12064](https://issues.apache.org/jira/browse/HADOOP-12064) | [JDK8] Update guice version to 4.0 | Blocker | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [HDFS-10548](https://issues.apache.org/jira/browse/HDFS-10548) | Remove the long deprecated BlockReaderRemote | Major | hdfs | Kai Zheng | Kai Zheng | +| [HADOOP-13382](https://issues.apache.org/jira/browse/HADOOP-13382) | remove unneeded commons-httpclient dependencies from POM files in Hadoop and sub-projects | Major | build | Matt Foley | Matt Foley | +| [HDFS-10689](https://issues.apache.org/jira/browse/HDFS-10689) | Hdfs dfs chmod should reset sticky bit permission when the bit is omitted in the octal mode | Minor | fs | Manoj Govindassamy | Manoj Govindassamy | +| [HDFS-7933](https://issues.apache.org/jira/browse/HDFS-7933) | fsck should also report decommissioning replicas. | Major | namenode | Jitendra Nath Pandey | Xiaoyu Yao | +| [HADOOP-12726](https://issues.apache.org/jira/browse/HADOOP-12726) | Unsupported FS operations should throw UnsupportedOperationException | Major | fs | Daniel Templeton | Daniel Templeton | + + +### IMPORTANT ISSUES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [YARN-4785](https://issues.apache.org/jira/browse/YARN-4785) | inconsistent value type of the "type" field for LeafQueueInfo in response of RM REST API - cluster/scheduler | Major | webapp | Jayesh | Varun Vasudev | +| [HADOOP-11393](https://issues.apache.org/jira/browse/HADOOP-11393) | Revert HADOOP\_PREFIX, go back to HADOOP\_HOME | Major | scripts, tracing | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12930](https://issues.apache.org/jira/browse/HADOOP-12930) | [Umbrella] Dynamic subcommands for hadoop shell scripts | Critical | scripts | Allen Wittenauer | Allen Wittenauer | + + +### NEW FEATURES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [MAPREDUCE-4887](https://issues.apache.org/jira/browse/MAPREDUCE-4887) | Rehashing partitioner for better distribution | Major | . | Radim Kolar | Radim Kolar | +| [HADOOP-11013](https://issues.apache.org/jira/browse/HADOOP-11013) | CLASSPATH handling should be consolidated, debuggable | Major | . | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-6590](https://issues.apache.org/jira/browse/HADOOP-6590) | Add a username check for hadoop sub-commands | Minor | scripts | Scott Chen | John Smith | +| [HADOOP-11353](https://issues.apache.org/jira/browse/HADOOP-11353) | Add support for .hadooprc | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-9044](https://issues.apache.org/jira/browse/HADOOP-9044) | add FindClass main class to provide classpath checking of installations | Minor | util | Steve Loughran | Steve Loughran | +| [HADOOP-11485](https://issues.apache.org/jira/browse/HADOOP-11485) | Pluggable shell integration | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-8934](https://issues.apache.org/jira/browse/HADOOP-8934) | Shell command ls should include sort options | Minor | fs | Jonathan Allen | Jonathan Allen | +| [HADOOP-11554](https://issues.apache.org/jira/browse/HADOOP-11554) | Expose HadoopKerberosName as a hadoop subcommand | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11565](https://issues.apache.org/jira/browse/HADOOP-11565) | Add --slaves shell option | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-9477](https://issues.apache.org/jira/browse/HADOOP-9477) | Add posixGroups support for LDAP groups mapping service | Major | . | Kai Zheng | Dapeng Sun | +| [HDFS-8009](https://issues.apache.org/jira/browse/HDFS-8009) | Signal congestion on the DataNode | Major | datanode | Haohui Mai | Haohui Mai | +| [YARN-2901](https://issues.apache.org/jira/browse/YARN-2901) | Add errors and warning metrics page to RM, NM web UI | Major | nodemanager, resourcemanager | Varun Vasudev | Varun Vasudev | +| [HADOOP-9642](https://issues.apache.org/jira/browse/HADOOP-9642) | Configuration to resolve environment variables via ${env.VARIABLE} references | Minor | conf, scripts | Steve Loughran | Kengo Seki | +| [HDFS-7891](https://issues.apache.org/jira/browse/HDFS-7891) | A block placement policy with best rack failure tolerance | Minor | namenode | Walter Su | Walter Su | +| [HADOOP-11843](https://issues.apache.org/jira/browse/HADOOP-11843) | Make setting up the build environment easier | Major | build | Niels Basjes | Niels Basjes | +| [MAPREDUCE-6284](https://issues.apache.org/jira/browse/MAPREDUCE-6284) | Add Task Attempt State API to MapReduce Application Master REST API | Minor | . | Ryu Kobayashi | Ryu Kobayashi | +| [HADOOP-10971](https://issues.apache.org/jira/browse/HADOOP-10971) | Add -C flag to make `hadoop fs -ls` print filenames only | Major | fs | Ryan Williams | Kengo Seki | +| [MAPREDUCE-6364](https://issues.apache.org/jira/browse/MAPREDUCE-6364) | Add a "Kill" link to Task Attempts page | Minor | applicationmaster | Ryu Kobayashi | Ryu Kobayashi | +| [MAPREDUCE-6304](https://issues.apache.org/jira/browse/MAPREDUCE-6304) | Specifying node labels when submitting MR jobs | Major | . | Jian Fang | Naganarasimha G R | +| [HADOOP-7947](https://issues.apache.org/jira/browse/HADOOP-7947) | Validate XMLs if a relevant tool is available, when using scripts | Major | scripts | Harsh J | Kengo Seki | +| [HDFS-8487](https://issues.apache.org/jira/browse/HDFS-8487) | Generalize BlockInfo in preparation of merging HDFS-7285 into trunk and branch-2 | Major | namenode | Zhe Zhang | Zhe Zhang | +| [HDFS-8608](https://issues.apache.org/jira/browse/HDFS-8608) | Merge HDFS-7912 to trunk and branch-2 (track BlockInfo instead of Block in UnderReplicatedBlocks and PendingReplicationBlocks) | Major | . | Zhe Zhang | Zhe Zhang | +| [HDFS-6440](https://issues.apache.org/jira/browse/HDFS-6440) | Support more than 2 NameNodes | Major | auto-failover, ha, namenode | Jesse Yates | Jesse Yates | +| [HADOOP-5732](https://issues.apache.org/jira/browse/HADOOP-5732) | Add SFTP FileSystem | Minor | fs | Ãñigo Goiri | ramtin | +| [HDFS-8622](https://issues.apache.org/jira/browse/HDFS-8622) | Implement GETCONTENTSUMMARY operation for WebImageViewer | Major | . | Jagadesh Kiran N | Jagadesh Kiran N | +| [HDFS-8155](https://issues.apache.org/jira/browse/HDFS-8155) | Support OAuth2 in WebHDFS | Major | webhdfs | Jakob Homan | Jakob Homan | +| [MAPREDUCE-6415](https://issues.apache.org/jira/browse/MAPREDUCE-6415) | Create a tool to combine aggregated logs into HAR files | Major | . | Robert Kanter | Robert Kanter | +| [HADOOP-12360](https://issues.apache.org/jira/browse/HADOOP-12360) | Create StatsD metrics2 sink | Minor | metrics | Dave Marion | Dave Marion | +| [HDFS-7285](https://issues.apache.org/jira/browse/HDFS-7285) | Erasure Coding Support inside HDFS | Major | . | Weihua Jiang | Zhe Zhang | +| [HADOOP-10949](https://issues.apache.org/jira/browse/HADOOP-10949) | metrics2 sink plugin for Apache Kafka | Major | metrics | Babak Behzad | Babak Behzad | +| [YARN-261](https://issues.apache.org/jira/browse/YARN-261) | Ability to fail AM attempts | Major | api | Jason Lowe | Rohith Sharma K S | +| [HDFS-9184](https://issues.apache.org/jira/browse/HDFS-9184) | Logging HDFS operation's caller context into audit logs | Major | . | Mingliang Liu | Mingliang Liu | +| [HDFS-9057](https://issues.apache.org/jira/browse/HDFS-9057) | allow/disallow snapshots via webhdfs | Major | webhdfs | Allen Wittenauer | Brahma Reddy Battula | +| [YARN-4349](https://issues.apache.org/jira/browse/YARN-4349) | Support CallerContext in YARN | Major | . | Wangda Tan | Wangda Tan | +| [HADOOP-12366](https://issues.apache.org/jira/browse/HADOOP-12366) | expose calculated paths | Major | . | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12321](https://issues.apache.org/jira/browse/HADOOP-12321) | Make JvmPauseMonitor an AbstractService | Major | . | Steve Loughran | Sunil G | +| [YARN-3623](https://issues.apache.org/jira/browse/YARN-3623) | We should have a config to indicate the Timeline Service version | Major | timelineserver | Zhijie Shen | Xuan Gong | +| [HADOOP-12657](https://issues.apache.org/jira/browse/HADOOP-12657) | Add a option to skip newline on empty files with getMerge -nl | Minor | . | Jan Filipiak | Kanaka Kumar Avvaru | +| [YARN-3458](https://issues.apache.org/jira/browse/YARN-3458) | CPU resource monitoring in Windows | Minor | nodemanager | Inigo Goiri | Inigo Goiri | +| [HADOOP-12691](https://issues.apache.org/jira/browse/HADOOP-12691) | Add CSRF Filter for REST APIs to Hadoop Common | Major | security | Larry McCay | Larry McCay | +| [HADOOP-12635](https://issues.apache.org/jira/browse/HADOOP-12635) | Adding Append API support for WASB | Major | azure | Dushyanth | Dushyanth | +| [HDFS-9525](https://issues.apache.org/jira/browse/HDFS-9525) | hadoop utilities need to support provided delegation tokens | Blocker | security | Allen Wittenauer | HeeSoo Kim | +| [HADOOP-12702](https://issues.apache.org/jira/browse/HADOOP-12702) | Add an HDFS metrics sink | Major | metrics | Daniel Templeton | Daniel Templeton | +| [HADOOP-12426](https://issues.apache.org/jira/browse/HADOOP-12426) | Add Entry point for Kerberos health check | Minor | security | Steve Loughran | Steve Loughran | +| [HDFS-9244](https://issues.apache.org/jira/browse/HDFS-9244) | Support nested encryption zones | Major | encryption | Xiaoyu Yao | Zhe Zhang | +| [HADOOP-12548](https://issues.apache.org/jira/browse/HADOOP-12548) | Read s3a creds from a Credential Provider | Major | fs/s3 | Allen Wittenauer | Larry McCay | +| [HDFS-9711](https://issues.apache.org/jira/browse/HDFS-9711) | Integrate CSRF prevention filter in WebHDFS. | Major | datanode, namenode, webhdfs | Chris Nauroth | Chris Nauroth | +| [HDFS-9835](https://issues.apache.org/jira/browse/HDFS-9835) | OIV: add ReverseXML processor which reconstructs an fsimage from an XML file | Major | tools | Colin P. McCabe | Colin P. McCabe | +| [HDFS-9239](https://issues.apache.org/jira/browse/HDFS-9239) | DataNode Lifeline Protocol: an alternative protocol for reporting DataNode liveness | Major | datanode, namenode | Chris Nauroth | Chris Nauroth | +| [HADOOP-12909](https://issues.apache.org/jira/browse/HADOOP-12909) | Change ipc.Client to support asynchronous calls | Major | ipc | Tsz Wo Nicholas Sze | Xiaobing Zhou | +| [HDFS-9945](https://issues.apache.org/jira/browse/HDFS-9945) | Datanode command for evicting writers | Major | datanode | Kihwal Lee | Kihwal Lee | +| [HADOOP-13008](https://issues.apache.org/jira/browse/HADOOP-13008) | Add XFS Filter for UIs to Hadoop Common | Major | security | Larry McCay | Larry McCay | +| [HADOOP-13065](https://issues.apache.org/jira/browse/HADOOP-13065) | Add a new interface for retrieving FS and FC Statistics | Major | fs | Ram Venkatesh | Mingliang Liu | +| [HADOOP-12723](https://issues.apache.org/jira/browse/HADOOP-12723) | S3A: Add ability to plug in any AWSCredentialsProvider | Major | fs/s3 | Steven K. Wong | Steven K. Wong | +| [HADOOP-12847](https://issues.apache.org/jira/browse/HADOOP-12847) | hadoop daemonlog should support https and SPNEGO for Kerberized cluster | Major | security | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [HADOOP-13226](https://issues.apache.org/jira/browse/HADOOP-13226) | Support async call retry and failover | Major | io, ipc | Xiaobing Zhou | Tsz Wo Nicholas Sze | +| [HADOOP-12537](https://issues.apache.org/jira/browse/HADOOP-12537) | S3A to support Amazon STS temporary credentials | Minor | fs/s3 | Sean Mackrory | Sean Mackrory | +| [HADOOP-12666](https://issues.apache.org/jira/browse/HADOOP-12666) | Support Microsoft Azure Data Lake - as a file system in Hadoop | Major | fs, fs/azure, tools | Vishwajeet Dusane | Vishwajeet Dusane | +| [HDFS-1312](https://issues.apache.org/jira/browse/HDFS-1312) | Re-balance disks within a Datanode | Major | datanode | Travis Crawford | Anu Engineer | +| [YARN-2928](https://issues.apache.org/jira/browse/YARN-2928) | YARN Timeline Service v.2: alpha 1 | Critical | timelineserver | Sangjin Lee | Sangjin Lee | +| [MAPREDUCE-6331](https://issues.apache.org/jira/browse/MAPREDUCE-6331) | [Umbrella] Make MapReduce work with Timeline Service Nextgen (YARN-2928) | Major | . | Vinod Kumar Vavilapalli | Sangjin Lee | +| [HADOOP-12747](https://issues.apache.org/jira/browse/HADOOP-12747) | support wildcard in libjars argument | Major | util | Sangjin Lee | Sangjin Lee | +| [HDFS-9804](https://issues.apache.org/jira/browse/HDFS-9804) | Allow long-running Balancer to login with keytab | Major | balancer & mover, security | Xiao Chen | Xiao Chen | +| [MAPREDUCE-6690](https://issues.apache.org/jira/browse/MAPREDUCE-6690) | Limit the number of resources a single map reduce job can submit for localization | Major | . | Chris Trezzo | Chris Trezzo | +| [MAPREDUCE-6578](https://issues.apache.org/jira/browse/MAPREDUCE-6578) | Add support for HDFS heterogeneous storage testing to TestDFSIO | Major | . | Wei Zhou | Wei Zhou | +| [HADOOP-13396](https://issues.apache.org/jira/browse/HADOOP-13396) | Allow pluggable audit loggers in KMS | Major | kms | Xiao Chen | Xiao Chen | + + +### IMPROVEMENTS: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [MAPREDUCE-2944](https://issues.apache.org/jira/browse/MAPREDUCE-2944) | Improve checking of input for Api displayTasks() | Trivial | client | XieXianshan | XieXianshan | +| [HADOOP-8017](https://issues.apache.org/jira/browse/HADOOP-8017) | Configure hadoop-main pom to get rid of M2E plugin execution not covered | Major | build | Eric Charles | Eric Charles | +| [HADOOP-8078](https://issues.apache.org/jira/browse/HADOOP-8078) | Add capability to turn on security in unit tests. | Major | test | Jitendra Nath Pandey | Jaimin D Jetly | +| [MAPREDUCE-3956](https://issues.apache.org/jira/browse/MAPREDUCE-3956) | Remove the use of the deprecated Syncable.sync() method | Minor | examples | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HADOOP-8147](https://issues.apache.org/jira/browse/HADOOP-8147) | test-patch should run tests with -fn to avoid masking test failures | Major | test | Robert Joseph Evans | Robert Joseph Evans | +| [HADOOP-8290](https://issues.apache.org/jira/browse/HADOOP-8290) | Remove two remaining references to "hadoop.native.lib" oldprop | Trivial | test | Harsh J | Harsh J | +| [HDFS-2743](https://issues.apache.org/jira/browse/HDFS-2743) | Streamline usage of bookkeeper journal manager | Major | ha | Ivan Kelly | Ivan Kelly | +| [HADOOP-8312](https://issues.apache.org/jira/browse/HADOOP-8312) | testpatch.sh should provide a simpler way to see which warnings changed | Major | scripts | Robert Joseph Evans | Robert Joseph Evans | +| [HDFS-3293](https://issues.apache.org/jira/browse/HDFS-3293) | Implement equals for journainfo class. | Minor | namenode | Hari Mankude | Hari Mankude | +| [HADOOP-8375](https://issues.apache.org/jira/browse/HADOOP-8375) | test-patch should stop immediately once it has found compilation errors | Major | build | Tsz Wo Nicholas Sze | Robert Joseph Evans | +| [HADOOP-8297](https://issues.apache.org/jira/browse/HADOOP-8297) | Writable javadocs don't carry default constructor | Trivial | documentation | Harsh J | Harsh J | +| [HADOOP-7659](https://issues.apache.org/jira/browse/HADOOP-7659) | fs -getmerge isn't guaranteed to work well over non-HDFS filesystems | Minor | fs | Harsh J | Harsh J | +| [MAPREDUCE-3302](https://issues.apache.org/jira/browse/MAPREDUCE-3302) | Remove the last dependency call from org.apache.hadoop.record package in MR. | Minor | client | Harsh J | Harsh J | +| [MAPREDUCE-2384](https://issues.apache.org/jira/browse/MAPREDUCE-2384) | The job submitter should make sure to validate jobs before creation of necessary files | Major | job submission, test | Denny Ye | Harsh J | +| [HDFS-3476](https://issues.apache.org/jira/browse/HDFS-3476) | Correct the default used in TestDFSClientRetries.busyTest() after HDFS-3462 | Minor | test | Harsh J | Harsh J | +| [HDFS-3478](https://issues.apache.org/jira/browse/HDFS-3478) | Test quotas with Long.Max\_Value | Minor | namenode | Sujay Rau | Sujay Rau | +| [MAPREDUCE-4371](https://issues.apache.org/jira/browse/MAPREDUCE-4371) | Check for cyclic dependencies in Jobcontrol job DAG | Major | mrv1 | madhukara phatak | madhukara phatak | +| [HADOOP-8523](https://issues.apache.org/jira/browse/HADOOP-8523) | test-patch.sh doesn't validate patches before building | Minor | build | Jack Dintruff | Jack Dintruff | +| [HADOOP-8521](https://issues.apache.org/jira/browse/HADOOP-8521) | Port StreamInputFormat to new Map Reduce API | Major | streaming | madhukara phatak | madhukara phatak | +| [HADOOP-8593](https://issues.apache.org/jira/browse/HADOOP-8593) | add the missed @Override to methods in Metric/Metric2 package | Minor | metrics | Brandon Li | Brandon Li | +| [HDFS-3768](https://issues.apache.org/jira/browse/HDFS-3768) | Exception in TestJettyHelper is incorrect | Minor | test | Jakob Homan | Eli Reisman | +| [HDFS-3834](https://issues.apache.org/jira/browse/HDFS-3834) | Unused Command.java fields NAME, DESCRIPTION and USAGE | Minor | shell | Jing Zhao | Jing Zhao | +| [HDFS-2580](https://issues.apache.org/jira/browse/HDFS-2580) | NameNode#main(...) can make use of GenericOptionsParser. | Minor | namenode | Harsh J | Harsh J | +| [HADOOP-8588](https://issues.apache.org/jira/browse/HADOOP-8588) | SerializationFactory shouldn't throw a NullPointerException if the serializations list is empty | Minor | io | Harsh J | Sho Shimauchi | +| [HADOOP-7930](https://issues.apache.org/jira/browse/HADOOP-7930) | Kerberos relogin interval in UserGroupInformation should be configurable | Major | security | Alejandro Abdelnur | Robert Kanter | +| [HADOOP-8838](https://issues.apache.org/jira/browse/HADOOP-8838) | Colorize the test-patch output sent to JIRA | Trivial | build | Harsh J | Harsh J | +| [MAPREDUCE-4686](https://issues.apache.org/jira/browse/MAPREDUCE-4686) | hadoop-mapreduce-client-core fails compilation in Eclipse due to missing Avro-generated classes | Major | build | Chris Nauroth | Chris Nauroth | +| [HADOOP-8864](https://issues.apache.org/jira/browse/HADOOP-8864) | Addendum to HADOOP-8840: Add a coloring case for +0 results too. | Trivial | precommit | Harsh J | Harsh J | +| [HDFS-3995](https://issues.apache.org/jira/browse/HDFS-3995) | Use DFSTestUtil.createFile() for file creation and writing in test cases | Minor | test | Jing Zhao | Jing Zhao | +| [HADOOP-8920](https://issues.apache.org/jira/browse/HADOOP-8920) | Add more javadoc to metrics2 related classes | Minor | metrics | Suresh Srinivas | Suresh Srinivas | +| [HADOOP-8776](https://issues.apache.org/jira/browse/HADOOP-8776) | Provide an option in test-patch that can enable / disable compiling native code | Minor | build | Hemanth Yamijala | Chris Nauroth | +| [MAPREDUCE-4735](https://issues.apache.org/jira/browse/MAPREDUCE-4735) | Make arguments in TestDFSIO case insensitive | Trivial | test | Robert Kanter | Brandon Li | +| [HADOOP-6616](https://issues.apache.org/jira/browse/HADOOP-6616) | Improve documentation for rack awareness | Major | documentation | Jeff Hammerbacher | Adam Faris | +| [HADOOP-9075](https://issues.apache.org/jira/browse/HADOOP-9075) | FileContext#FSLinkResolver should be made static | Minor | . | Suresh Srinivas | Arpit Agarwal | +| [HDFS-3358](https://issues.apache.org/jira/browse/HDFS-3358) | Specify explicitly that the NN UI status total is talking of persistent objects on heap. | Trivial | namenode | Harsh J | Harsh J | +| [HADOOP-9277](https://issues.apache.org/jira/browse/HADOOP-9277) | Improve javadoc for FileContext | Minor | . | Andrew Wang | Andrew Wang | +| [HADOOP-9394](https://issues.apache.org/jira/browse/HADOOP-9394) | Port findHangingTest.sh from HBase to Hadoop | Minor | . | Andrew Wang | Andrew Wang | +| [HDFS-4665](https://issues.apache.org/jira/browse/HDFS-4665) | Move TestNetworkTopologyWithNodeGroup to Common | Minor | test | Luke Lu | Junping Du | +| [MAPREDUCE-5232](https://issues.apache.org/jira/browse/MAPREDUCE-5232) | log classpath and other key properties on child JVM start | Major | mrv1, mrv2 | Sangjin Lee | Sangjin Lee | +| [HDFS-5041](https://issues.apache.org/jira/browse/HDFS-5041) | Add the time of last heartbeat to dead server Web UI | Minor | . | Ted Yu | Ted Yu | +| [HADOOP-10044](https://issues.apache.org/jira/browse/HADOOP-10044) | Improve the javadoc of rpc code | Minor | . | Sanjay Radia | Sanjay Radia | +| [MAPREDUCE-5197](https://issues.apache.org/jira/browse/MAPREDUCE-5197) | Checkpoint Service: a library component to facilitate checkpoint of task state | Major | mrv2 | Carlo Curino | Carlo Curino | +| [MAPREDUCE-5196](https://issues.apache.org/jira/browse/MAPREDUCE-5196) | CheckpointAMPreemptionPolicy implements preemption in MR AM via checkpointing | Major | mr-am, mrv2 | Carlo Curino | Carlo Curino | +| [HDFS-6228](https://issues.apache.org/jira/browse/HDFS-6228) | comments typo fix for FsDatasetImpl.java | Trivial | . | yunjiong zhao | yunjiong zhao | +| [HADOOP-8719](https://issues.apache.org/jira/browse/HADOOP-8719) | Workaround for kerberos-related log errors upon running any hadoop command on OSX | Trivial | scripts | Jianbin Wei | Jianbin Wei | +| [HADOOP-10834](https://issues.apache.org/jira/browse/HADOOP-10834) | Typo in CredentialShell usage | Minor | security | Benoy Antony | Benoy Antony | +| [MAPREDUCE-6013](https://issues.apache.org/jira/browse/MAPREDUCE-6013) | mapred version is missing | Major | scripts | Allen Wittenauer | Akira Ajisaka | +| [MAPREDUCE-2841](https://issues.apache.org/jira/browse/MAPREDUCE-2841) | Task level native optimization | Major | task | Binglin Chang | Sean Zhong | +| [YARN-2438](https://issues.apache.org/jira/browse/YARN-2438) | yarn-env.sh cleanup | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11092](https://issues.apache.org/jira/browse/HADOOP-11092) | hadoop shell commands should print usage if not given a class | Major | scripts | Bruno Mahé | Allen Wittenauer | +| [HDFS-7278](https://issues.apache.org/jira/browse/HDFS-7278) | Add a command that allows sysadmins to manually trigger full block reports from a DN | Major | datanode | Colin P. McCabe | Colin P. McCabe | +| [HADOOP-11025](https://issues.apache.org/jira/browse/HADOOP-11025) | hadoop-daemons.sh should just call hdfs directly | Major | scripts | Allen Wittenauer | Masatake Iwasaki | +| [HADOOP-11150](https://issues.apache.org/jira/browse/HADOOP-11150) | hadoop command should show the reason on failure by invalid COMMAND or CLASSNAME | Minor | scripts | Masatake Iwasaki | Masatake Iwasaki | +| [HADOOP-11208](https://issues.apache.org/jira/browse/HADOOP-11208) | Replace "daemon" with better name in script subcommands | Major | scripts | Yongjun Zhang | Allen Wittenauer | +| [HADOOP-10926](https://issues.apache.org/jira/browse/HADOOP-10926) | Improve smart-apply-patch.sh to apply binary diffs | Major | . | Andrew Wang | Colin P. McCabe | +| [HADOOP-11081](https://issues.apache.org/jira/browse/HADOOP-11081) | Document hadoop properties expected to be set by the shell code in \*-env.sh | Major | documentation, scripts | Allen Wittenauer | Allen Wittenauer | +| [YARN-2472](https://issues.apache.org/jira/browse/YARN-2472) | yarn-daemons.sh should just call yarn directly | Major | scripts | Allen Wittenauer | Masatake Iwasaki | +| [YARN-2301](https://issues.apache.org/jira/browse/YARN-2301) | Improve yarn container command | Major | . | Jian He | Naganarasimha G R | +| [HADOOP-11352](https://issues.apache.org/jira/browse/HADOOP-11352) | Clean up test-patch.sh to disable "+1 contrib tests" | Major | build | Akira Ajisaka | Akira Ajisaka | +| [YARN-2437](https://issues.apache.org/jira/browse/YARN-2437) | start-yarn.sh/stop-yarn should give info | Major | scripts | Allen Wittenauer | Varun Saxena | +| [HDFS-7531](https://issues.apache.org/jira/browse/HDFS-7531) | Improve the concurrent access on FsVolumeList | Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [HADOOP-11058](https://issues.apache.org/jira/browse/HADOOP-11058) | Missing HADOOP\_CONF\_DIR generates strange results | Major | scripts | Allen Wittenauer | Masatake Iwasaki | +| [HDFS-7579](https://issues.apache.org/jira/browse/HDFS-7579) | Improve log reporting during block report rpc failure | Minor | datanode | Charles Lamb | Charles Lamb | +| [HDFS-7446](https://issues.apache.org/jira/browse/HDFS-7446) | HDFS inotify should have the ability to determine what txid it has read up to | Major | hdfs-client | Colin P. McCabe | Colin P. McCabe | +| [HDFS-7182](https://issues.apache.org/jira/browse/HDFS-7182) | JMX metrics aren't accessible when NN is busy | Major | . | Ming Ma | Ming Ma | +| [HADOOP-11466](https://issues.apache.org/jira/browse/HADOOP-11466) | FastByteComparisons: do not use UNSAFE\_COMPARER on the SPARC architecture because it is slower there | Minor | io, performance, util | Suman Somasundar | Suman Somasundar | +| [HADOOP-11460](https://issues.apache.org/jira/browse/HADOOP-11460) | Deprecate shell vars | Major | scripts | Allen Wittenauer | John Smith | +| [HADOOP-11346](https://issues.apache.org/jira/browse/HADOOP-11346) | Rewrite sls/rumen to use new shell framework | Major | scripts, tools | Allen Wittenauer | John Smith | +| [HADOOP-7713](https://issues.apache.org/jira/browse/HADOOP-7713) | dfs -count -q should label output column | Trivial | . | Nigel Daley | Jonathan Allen | +| [HADOOP-6964](https://issues.apache.org/jira/browse/HADOOP-6964) | Allow compact property description in xml | Major | conf | Owen O'Malley | Kengo Seki | +| [HADOOP-11506](https://issues.apache.org/jira/browse/HADOOP-11506) | Configuration variable expansion regex expensive for long values | Major | conf | Dmitriy V. Ryaboy | Gera Shegalov | +| [HDFS-7546](https://issues.apache.org/jira/browse/HDFS-7546) | Document, and set an accepting default for dfs.namenode.kerberos.principal.pattern | Minor | security | Harsh J | Harsh J | +| [HDFS-7694](https://issues.apache.org/jira/browse/HDFS-7694) | FSDataInputStream should support "unbuffer" | Major | . | Colin P. McCabe | Colin P. McCabe | +| [HDFS-7322](https://issues.apache.org/jira/browse/HDFS-7322) | deprecate sbin/hadoop-daemon.sh | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [YARN-2796](https://issues.apache.org/jira/browse/YARN-2796) | deprecate sbin/yarn-daemon.sh | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [MAPREDUCE-6250](https://issues.apache.org/jira/browse/MAPREDUCE-6250) | deprecate sbin/mr-jobhistory-daemon.sh | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [MAPREDUCE-6260](https://issues.apache.org/jira/browse/MAPREDUCE-6260) | Convert site documentation to markdown | Major | documentation | Allen Wittenauer | Masatake Iwasaki | +| [HADOOP-11575](https://issues.apache.org/jira/browse/HADOOP-11575) | Daemon log documentation is misleading | Major | documentation | Jagadesh Kiran N | Naganarasimha G R | +| [HADOOP-11596](https://issues.apache.org/jira/browse/HADOOP-11596) | Allow smart-apply-patch.sh to add new files in binary git patches | Major | . | Ravi Prakash | Ravi Prakash | +| [HADOOP-11593](https://issues.apache.org/jira/browse/HADOOP-11593) | Convert site documentation from apt to markdown (stragglers) | Major | documentation | Allen Wittenauer | Masatake Iwasaki | +| [YARN-3230](https://issues.apache.org/jira/browse/YARN-3230) | Clarify application states on the web UI | Major | . | Jian He | Jian He | +| [HDFS-7460](https://issues.apache.org/jira/browse/HDFS-7460) | Rewrite httpfs to use new shell framework | Major | scripts | Allen Wittenauer | John Smith | +| [YARN-3168](https://issues.apache.org/jira/browse/YARN-3168) | Convert site documentation from apt to markdown | Major | documentation | Allen Wittenauer | Gururaj Shetty | +| [YARN-3199](https://issues.apache.org/jira/browse/YARN-3199) | Fair Scheduler documentation improvements | Minor | fairscheduler | Rohit Agarwal | Rohit Agarwal | +| [MAPREDUCE-6267](https://issues.apache.org/jira/browse/MAPREDUCE-6267) | Refactor JobSubmitter#copyAndConfigureFiles into it's own class | Minor | . | Chris Trezzo | Chris Trezzo | +| [YARN-3249](https://issues.apache.org/jira/browse/YARN-3249) | Add a "kill application" button to Resource Manager's Web UI | Minor | resourcemanager | Ryu Kobayashi | Ryu Kobayashi | +| [HADOOP-11673](https://issues.apache.org/jira/browse/HADOOP-11673) | Use org.junit.Assume to skip tests instead of return | Minor | test | Akira Ajisaka | Brahma Reddy Battula | +| [HADOOP-11692](https://issues.apache.org/jira/browse/HADOOP-11692) | Improve authentication failure WARN message to avoid user confusion | Major | ipc | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-11226](https://issues.apache.org/jira/browse/HADOOP-11226) | Add a configuration to set ipc.Client's traffic class with IPTOS\_LOWDELAY\|IPTOS\_RELIABILITY | Major | ipc | Gopal V | Gopal V | +| [YARN-2280](https://issues.apache.org/jira/browse/YARN-2280) | Resource manager web service fields are not accessible | Trivial | resourcemanager | Krisztian Horvath | Krisztian Horvath | +| [HADOOP-11711](https://issues.apache.org/jira/browse/HADOOP-11711) | Provide a default value for AES/CTR/NoPadding CryptoCodec classes | Minor | . | Andrew Wang | Andrew Wang | +| [MAPREDUCE-4414](https://issues.apache.org/jira/browse/MAPREDUCE-4414) | Add main methods to JobConf and YarnConfiguration, for debug purposes | Major | client | Harsh J | Plamen Jeliazkov | +| [MAPREDUCE-6105](https://issues.apache.org/jira/browse/MAPREDUCE-6105) | Inconsistent configuration in property mapreduce.reduce.shuffle.merge.percent | Trivial | . | Dongwook Kwon | Ray Chiang | +| [HDFS-2360](https://issues.apache.org/jira/browse/HDFS-2360) | Ugly stacktrace when quota exceeds | Minor | hdfs-client | Rajit Saha | Harsh J | +| [MAPREDUCE-6100](https://issues.apache.org/jira/browse/MAPREDUCE-6100) | replace "mapreduce.job.credentials.binary" with MRJobConfig.MAPREDUCE\_JOB\_CREDENTIALS\_BINARY for better readability. | Trivial | mrv2 | zhihai xu | zhihai xu | +| [MAPREDUCE-5755](https://issues.apache.org/jira/browse/MAPREDUCE-5755) | MapTask.MapOutputBuffer#compare/swap should have @Override annotation | Trivial | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [MAPREDUCE-4653](https://issues.apache.org/jira/browse/MAPREDUCE-4653) | TestRandomAlgorithm has an unused "import" statement | Trivial | contrib/gridmix | Amir Sanjar | Amir Sanjar | +| [HADOOP-11659](https://issues.apache.org/jira/browse/HADOOP-11659) | o.a.h.fs.FileSystem.Cache#remove should use a single hash map lookup | Minor | fs | Gera Shegalov | Brahma Reddy Battula | +| [HADOOP-11709](https://issues.apache.org/jira/browse/HADOOP-11709) | Time.NANOSECONDS\_PER\_MILLISECOND - use class-level final constant instead of method variable | Trivial | . | Ajith S | Ajith S | +| [HDFS-7835](https://issues.apache.org/jira/browse/HDFS-7835) | make initial sleeptime in locateFollowingBlock configurable for DFSClient. | Major | hdfs-client | zhihai xu | zhihai xu | +| [HDFS-7829](https://issues.apache.org/jira/browse/HDFS-7829) | Code clean up for LocatedBlock | Minor | . | Jing Zhao | Takanobu Asanuma | +| [MAPREDUCE-6282](https://issues.apache.org/jira/browse/MAPREDUCE-6282) | Reuse historyFileAbsolute.getFileSystem in CompletedJob#loadFullHistoryData for code optimization. | Trivial | jobhistoryserver | zhihai xu | zhihai xu | +| [HADOOP-11447](https://issues.apache.org/jira/browse/HADOOP-11447) | Add a more meaningful toString method to SampleStat and MutableStat | Minor | metrics | Karthik Kambatla | Karthik Kambatla | +| [YARN-3350](https://issues.apache.org/jira/browse/YARN-3350) | YARN RackResolver spams logs with messages at info level | Major | . | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [MAPREDUCE-6239](https://issues.apache.org/jira/browse/MAPREDUCE-6239) | Consolidate TestJobConf classes in hadoop-mapreduce-client-jobclient and hadoop-mapreduce-client-core | Minor | client | Varun Saxena | Varun Saxena | +| [MAPREDUCE-5190](https://issues.apache.org/jira/browse/MAPREDUCE-5190) | Unnecessary condition test in RandomSampler | Minor | mrv2 | Jingguo Yao | Jingguo Yao | +| [MAPREDUCE-6287](https://issues.apache.org/jira/browse/MAPREDUCE-6287) | Deprecated methods in org.apache.hadoop.examples.Sort | Minor | examples | Chao Zhang | Chao Zhang | +| [HADOOP-11737](https://issues.apache.org/jira/browse/HADOOP-11737) | mockito's version in hadoop-nfsâ pom.xml shouldn't be specified | Minor | nfs | Kengo Seki | Kengo Seki | +| [YARN-2868](https://issues.apache.org/jira/browse/YARN-2868) | FairScheduler: Metric for latency to allocate first container for an application | Major | . | Ray Chiang | Ray Chiang | +| [HDFS-7875](https://issues.apache.org/jira/browse/HDFS-7875) | Improve log message when wrong value configured for dfs.datanode.failed.volumes.tolerated | Trivial | datanode | nijel | nijel | +| [HDFS-7793](https://issues.apache.org/jira/browse/HDFS-7793) | Refactor DFSOutputStream separating DataStreamer out | Major | hdfs-client | Kai Zheng | Li Bo | +| [HADOOP-11741](https://issues.apache.org/jira/browse/HADOOP-11741) | Add LOG.isDebugEnabled() guard for some LOG.debug() | Major | . | Walter Su | Walter Su | +| [MAPREDUCE-579](https://issues.apache.org/jira/browse/MAPREDUCE-579) | Streaming "slowmatch" documentation | Trivial | contrib/streaming | Bo Adler | Harsh J | +| [HDFS-7928](https://issues.apache.org/jira/browse/HDFS-7928) | Scanning blocks from disk during rolling upgrade startup takes a lot of time if disks are busy | Major | datanode | Rushabh S Shah | Rushabh S Shah | +| [HADOOP-11524](https://issues.apache.org/jira/browse/HADOOP-11524) | hadoop\_do\_classpath\_subcommand throws a shellcheck warning | Minor | scripts | Allen Wittenauer | Chris Nauroth | +| [HADOOP-11719](https://issues.apache.org/jira/browse/HADOOP-11719) | [Fsshell] Remove bin/hadoop reference from GenericOptionsParser default help text | Minor | scripts | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-8004](https://issues.apache.org/jira/browse/HDFS-8004) | Use KeyProviderCryptoExtension#warmUpEncryptedKeys when creating an encryption zone | Trivial | encryption | Andrew Wang | Andrew Wang | +| [HDFS-7890](https://issues.apache.org/jira/browse/HDFS-7890) | Improve information on Top users for metrics in RollingWindowsManager and lower log level | Major | . | J.Andreina | J.Andreina | +| [HDFS-4396](https://issues.apache.org/jira/browse/HDFS-4396) | Add START\_MSG/SHUTDOWN\_MSG for ZKFC | Major | auto-failover, ha, tools | Liang Xie | Liang Xie | +| [HADOOP-11660](https://issues.apache.org/jira/browse/HADOOP-11660) | Add support for hardware crc of HDFS checksums on ARM aarch64 architecture | Minor | native | Edward Nevill | Edward Nevill | +| [HDFS-7645](https://issues.apache.org/jira/browse/HDFS-7645) | Rolling upgrade is restoring blocks from trash multiple times | Major | datanode | Nathan Roberts | Keisuke Ogiwara | +| [HDFS-3918](https://issues.apache.org/jira/browse/HDFS-3918) | EditLogTailer shouldn't log WARN when other node is in standby mode | Major | ha | Todd Lipcon | Todd Lipcon | +| [HDFS-7944](https://issues.apache.org/jira/browse/HDFS-7944) | Minor cleanup of BlockPoolManager#getAllNamenodeThreads | Minor | . | Arpit Agarwal | Arpit Agarwal | +| [YARN-3258](https://issues.apache.org/jira/browse/YARN-3258) | FairScheduler: Need to add more logging to investigate allocations | Minor | fairscheduler | Anubhav Dhoot | Anubhav Dhoot | +| [HDFS-7671](https://issues.apache.org/jira/browse/HDFS-7671) | hdfs user guide should point to the common rack awareness doc | Major | documentation | Allen Wittenauer | Kai Sasaki | +| [YARN-3412](https://issues.apache.org/jira/browse/YARN-3412) | RM tests should use MockRM where possible | Major | resourcemanager, test | Karthik Kambatla | Karthik Kambatla | +| [YARN-3428](https://issues.apache.org/jira/browse/YARN-3428) | Debug log resources to be localized for a container | Trivial | nodemanager | Karthik Kambatla | Karthik Kambatla | +| [YARN-3424](https://issues.apache.org/jira/browse/YARN-3424) | Change logs for ContainerMonitorImpl's resourse monitoring from info to debug | Major | nodemanager | Anubhav Dhoot | Anubhav Dhoot | +| [YARN-3248](https://issues.apache.org/jira/browse/YARN-3248) | Display count of nodes blacklisted by apps in the web UI | Major | capacityscheduler, resourcemanager | Varun Vasudev | Varun Vasudev | +| [HDFS-7978](https://issues.apache.org/jira/browse/HDFS-7978) | Add LOG.isDebugEnabled() guard for some LOG.debug(..) | Major | . | Walter Su | Walter Su | +| [HDFS-8008](https://issues.apache.org/jira/browse/HDFS-8008) | Support client-side back off when the datanodes are congested | Major | hdfs-client | Haohui Mai | Haohui Mai | +| [HDFS-7888](https://issues.apache.org/jira/browse/HDFS-7888) | Change DataStreamer/DFSOutputStream/DFSPacket for convenience of subclassing | Minor | hdfs-client | Li Bo | Li Bo | +| [HDFS-8035](https://issues.apache.org/jira/browse/HDFS-8035) | Move checkBlocksProperlyReplicated() in FSNamesystem to BlockManager | Minor | namenode | Haohui Mai | Haohui Mai | +| [HADOOP-9805](https://issues.apache.org/jira/browse/HADOOP-9805) | Refactor RawLocalFileSystem#rename for improved testability. | Minor | fs, test | Chris Nauroth | Jean-Pierre Matsumoto | +| [HADOOP-11785](https://issues.apache.org/jira/browse/HADOOP-11785) | Reduce number of listStatus operation in distcp buildListing() | Minor | tools/distcp | Zoran Dimitrijevic | Zoran Dimitrijevic | +| [HADOOP-11717](https://issues.apache.org/jira/browse/HADOOP-11717) | Add Redirecting WebSSO behavior with JWT Token in Hadoop Auth | Major | security | Larry McCay | Larry McCay | +| [YARN-3294](https://issues.apache.org/jira/browse/YARN-3294) | Allow dumping of Capacity Scheduler debug logs via web UI for a fixed time period | Major | capacityscheduler | Varun Vasudev | Varun Vasudev | +| [HDFS-8073](https://issues.apache.org/jira/browse/HDFS-8073) | Split BlockPlacementPolicyDefault.chooseTarget(..) so it can be easily overrided. | Trivial | namenode | Walter Su | Walter Su | +| [HDFS-8076](https://issues.apache.org/jira/browse/HDFS-8076) | Code cleanup for DFSInputStream: use offset instead of LocatedBlock when possible | Major | . | Zhe Zhang | Zhe Zhang | +| [HDFS-7979](https://issues.apache.org/jira/browse/HDFS-7979) | Initialize block report IDs with a random number | Minor | datanode | Andrew Wang | Andrew Wang | +| [HDFS-8101](https://issues.apache.org/jira/browse/HDFS-8101) | DFSClient use of non-constant DFSConfigKeys pulls in WebHDFS classes at runtime | Minor | hdfs-client | Sean Busbey | Sean Busbey | +| [YARN-3293](https://issues.apache.org/jira/browse/YARN-3293) | Track and display capacity scheduler health metrics in web UI | Major | capacityscheduler | Varun Vasudev | Varun Vasudev | +| [MAPREDUCE-6291](https://issues.apache.org/jira/browse/MAPREDUCE-6291) | Correct mapred queue usage command | Minor | client | Brahma Reddy Battula | Brahma Reddy Battula | +| [MAPREDUCE-6307](https://issues.apache.org/jira/browse/MAPREDUCE-6307) | Remove property mapreduce.tasktracker.taskmemorymanager.monitoringinterval | Minor | . | Akira Ajisaka | J.Andreina | +| [YARN-3348](https://issues.apache.org/jira/browse/YARN-3348) | Add a 'yarn top' tool to help understand cluster usage | Major | resourcemanager | Varun Vasudev | Varun Vasudev | +| [YARN-3469](https://issues.apache.org/jira/browse/YARN-3469) | ZKRMStateStore: Avoid setting watches that are not required | Minor | . | Jun Gong | Jun Gong | +| [HDFS-8117](https://issues.apache.org/jira/browse/HDFS-8117) | More accurate verification in SimulatedFSDataset: replace DEFAULT\_DATABYTE with patterned data | Major | . | Zhe Zhang | Zhe Zhang | +| [HDFS-8144](https://issues.apache.org/jira/browse/HDFS-8144) | Split TestLazyPersistFiles into multiple tests | Major | test | Arpit Agarwal | Arpit Agarwal | +| [YARN-3404](https://issues.apache.org/jira/browse/YARN-3404) | View the queue name to YARN Application page | Minor | . | Ryu Kobayashi | Ryu Kobayashi | +| [YARN-3451](https://issues.apache.org/jira/browse/YARN-3451) | Add start time and Elapsed in ApplicationAttemptReport and display the same in RMAttemptBlock WebUI | Major | api, webapp | Rohith Sharma K S | Rohith Sharma K S | +| [HDFS-7863](https://issues.apache.org/jira/browse/HDFS-7863) | Missing description of some methods and parameters in javadoc of FSDirDeleteOp | Minor | . | Yongjun Zhang | Brahma Reddy Battula | +| [HDFS-8152](https://issues.apache.org/jira/browse/HDFS-8152) | Refactoring of lazy persist storage cases | Major | test | Arpit Agarwal | Arpit Agarwal | +| [HDFS-8133](https://issues.apache.org/jira/browse/HDFS-8133) | Improve readability of deleted block check | Major | namenode | Daryn Sharp | Daryn Sharp | +| [HADOOP-11812](https://issues.apache.org/jira/browse/HADOOP-11812) | Implement listLocatedStatus for ViewFileSystem to speed up split calculation | Blocker | fs | Gera Shegalov | Gera Shegalov | +| [MAPREDUCE-6297](https://issues.apache.org/jira/browse/MAPREDUCE-6297) | Task Id of the failed task in diagnostics should link to the task page | Minor | jobhistoryserver | Siqi Li | Siqi Li | +| [HADOOP-11827](https://issues.apache.org/jira/browse/HADOOP-11827) | Speed-up distcp buildListing() using threadpool | Major | tools/distcp | Zoran Dimitrijevic | Zoran Dimitrijevic | +| [YARN-3494](https://issues.apache.org/jira/browse/YARN-3494) | Expose AM resource limit and usage in QueueMetrics | Major | . | Jian He | Rohith Sharma K S | +| [YARN-3503](https://issues.apache.org/jira/browse/YARN-3503) | Expose disk utilization percentage and bad local and log dir counts on NM via JMX | Major | nodemanager | Varun Vasudev | Varun Vasudev | +| [YARN-3410](https://issues.apache.org/jira/browse/YARN-3410) | YARN admin should be able to remove individual application records from RMStateStore | Critical | resourcemanager, yarn | Wangda Tan | Rohith Sharma K S | +| [HDFS-8215](https://issues.apache.org/jira/browse/HDFS-8215) | Refactor NamenodeFsck#check method | Minor | namenode | Takanobu Asanuma | Takanobu Asanuma | +| [YARN-3511](https://issues.apache.org/jira/browse/YARN-3511) | Add errors and warnings page to ATS | Major | timelineserver | Varun Vasudev | Varun Vasudev | +| [HDFS-8176](https://issues.apache.org/jira/browse/HDFS-8176) | Record from/to snapshots in audit log for snapshot diff report | Minor | snapshots | J.Andreina | J.Andreina | +| [YARN-3406](https://issues.apache.org/jira/browse/YARN-3406) | Display count of running containers in the RM's Web UI | Minor | . | Ryu Kobayashi | Ryu Kobayashi | +| [HADOOP-11357](https://issues.apache.org/jira/browse/HADOOP-11357) | Print information of the build enviornment in test-patch.sh | Minor | scripts | Haohui Mai | Allen Wittenauer | +| [HADOOP-11857](https://issues.apache.org/jira/browse/HADOOP-11857) | Fix CommandFormat#commandFormat java doc annotation | Trivial | . | Xiaoyu Yao | J.Andreina | +| [MAPREDUCE-6057](https://issues.apache.org/jira/browse/MAPREDUCE-6057) | Remove obsolete entries from mapred-default.xml | Minor | . | Ray Chiang | Ray Chiang | +| [HDFS-8204](https://issues.apache.org/jira/browse/HDFS-8204) | Mover/Balancer should not schedule two replicas to the same DN | Minor | balancer & mover | Walter Su | Walter Su | +| [HDFS-8280](https://issues.apache.org/jira/browse/HDFS-8280) | Code Cleanup in DFSInputStream | Minor | . | Jing Zhao | Jing Zhao | +| [HDFS-8283](https://issues.apache.org/jira/browse/HDFS-8283) | DataStreamer cleanup and some minor improvement | Minor | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-5574](https://issues.apache.org/jira/browse/HDFS-5574) | Remove buffer copy in BlockReader.skip | Trivial | . | Binglin Chang | Binglin Chang | +| [HDFS-7770](https://issues.apache.org/jira/browse/HDFS-7770) | Need document for storage type label of data node storage locations under dfs.datanode.data.dir | Major | documentation | Xiaoyu Yao | Xiaoyu Yao | +| [HDFS-8200](https://issues.apache.org/jira/browse/HDFS-8200) | Refactor FSDirStatAndListingOp | Major | . | Haohui Mai | Haohui Mai | +| [YARN-3363](https://issues.apache.org/jira/browse/YARN-3363) | add localization and container launch time to ContainerMetrics at NM to show these timing information for each active container. | Major | nodemanager | zhihai xu | zhihai xu | +| [HDFS-7397](https://issues.apache.org/jira/browse/HDFS-7397) | Add more detail to the documentation for the conf key "dfs.client.read.shortcircuit.streams.cache.size" | Minor | hdfs-client | Tsz Wo Nicholas Sze | Brahma Reddy Battula | +| [YARN-2980](https://issues.apache.org/jira/browse/YARN-2980) | Move health check script related functionality to hadoop-common | Blocker | . | Ming Ma | Varun Saxena | +| [HADOOP-11911](https://issues.apache.org/jira/browse/HADOOP-11911) | test-patch should allow configuration of default branch | Minor | . | Sean Busbey | Sean Busbey | +| [HDFS-7758](https://issues.apache.org/jira/browse/HDFS-7758) | Retire FsDatasetSpi#getVolumes() and use FsDatasetSpi#getVolumeRefs() instead | Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [MAPREDUCE-6192](https://issues.apache.org/jira/browse/MAPREDUCE-6192) | Create unit test to automatically compare MR related classes and mapred-default.xml | Minor | . | Ray Chiang | Ray Chiang | +| [HADOOP-11813](https://issues.apache.org/jira/browse/HADOOP-11813) | releasedocmaker.py should use today's date instead of unreleased | Minor | build | Allen Wittenauer | Darrell Taylor | +| [YARN-3491](https://issues.apache.org/jira/browse/YARN-3491) | PublicLocalizer#addResource is too slow. | Critical | nodemanager | zhihai xu | zhihai xu | +| [MAPREDUCE-6279](https://issues.apache.org/jira/browse/MAPREDUCE-6279) | AM should explicity exit JVM after all services have stopped | Major | . | Jason Lowe | Eric Payne | +| [HDFS-8108](https://issues.apache.org/jira/browse/HDFS-8108) | Fsck should provide the info on mandatory option to be used along with "-blocks , -locations and -racks" | Trivial | documentation | J.Andreina | J.Andreina | +| [HDFS-8207](https://issues.apache.org/jira/browse/HDFS-8207) | Improper log message when blockreport interval compared with initial delay | Minor | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [MAPREDUCE-6079](https://issues.apache.org/jira/browse/MAPREDUCE-6079) | Rename JobImpl#username to reporterUserName | Major | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [HDFS-8209](https://issues.apache.org/jira/browse/HDFS-8209) | Support different number of datanode directories in MiniDFSCluster. | Minor | test | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [YARN-3169](https://issues.apache.org/jira/browse/YARN-3169) | Drop YARN's overview document | Major | documentation | Allen Wittenauer | Brahma Reddy Battula | +| [YARN-2784](https://issues.apache.org/jira/browse/YARN-2784) | Make POM project names consistent | Minor | build | Rohith Sharma K S | Rohith Sharma K S | +| [MAPREDUCE-5981](https://issues.apache.org/jira/browse/MAPREDUCE-5981) | Log levels of certain MR logs can be changed to DEBUG | Major | . | Varun Saxena | Varun Saxena | +| [HADOOP-6842](https://issues.apache.org/jira/browse/HADOOP-6842) | "hadoop fs -text" does not give a useful text representation of MapWritable objects | Major | io | Steven K. Wong | Akira Ajisaka | +| [YARN-20](https://issues.apache.org/jira/browse/YARN-20) | More information for "yarn.resourcemanager.webapp.address" in yarn-default.xml | Trivial | documentation, resourcemanager | Nemon Lou | Bartosz Åugowski | +| [HDFS-5640](https://issues.apache.org/jira/browse/HDFS-5640) | Add snapshot methods to FileContext. | Major | hdfs-client, snapshots | Chris Nauroth | Rakesh R | +| [HDFS-8284](https://issues.apache.org/jira/browse/HDFS-8284) | Update documentation about how to use HTrace with HDFS | Major | documentation | Masatake Iwasaki | Masatake Iwasaki | +| [HDFS-7433](https://issues.apache.org/jira/browse/HDFS-7433) | Optimize performance of DatanodeManager's node map | Critical | namenode | Daryn Sharp | Daryn Sharp | +| [HADOOP-11590](https://issues.apache.org/jira/browse/HADOOP-11590) | Update sbin commands and documentation to use new --slaves option | Blocker | documentation, scripts | Allen Wittenauer | Allen Wittenauer | +| [MAPREDUCE-5248](https://issues.apache.org/jira/browse/MAPREDUCE-5248) | Let NNBenchWithoutMR specify the replication factor for its test | Minor | client, test | Erik Paulson | Erik Paulson | +| [HADOOP-9737](https://issues.apache.org/jira/browse/HADOOP-9737) | JarFinder#getJar should delete the jar file upon destruction of the JVM | Major | util | Esteban Gutierrez | Jean-Baptiste Onofré | +| [YARN-1050](https://issues.apache.org/jira/browse/YARN-1050) | Document the Fair Scheduler REST API | Major | documentation, fairscheduler | Sandy Ryza | Kenji Kikushima | +| [YARN-3271](https://issues.apache.org/jira/browse/YARN-3271) | FairScheduler: Move tests related to max-runnable-apps from TestFairScheduler to TestAppRunnability | Major | . | Karthik Kambatla | nijel | +| [YARN-2206](https://issues.apache.org/jira/browse/YARN-2206) | Update document for applications REST API response examples | Minor | documentation | Kenji Kikushima | Brahma Reddy Battula | +| [HDFS-6757](https://issues.apache.org/jira/browse/HDFS-6757) | Simplify lease manager with INodeID | Major | . | Haohui Mai | Haohui Mai | +| [HDFS-8327](https://issues.apache.org/jira/browse/HDFS-8327) | Simplify quota calculations for snapshots and truncate | Major | . | Haohui Mai | Haohui Mai | +| [YARN-1287](https://issues.apache.org/jira/browse/YARN-1287) | Consolidate MockClocks | Major | . | Sandy Ryza | Sebastian Wong | +| [HDFS-8357](https://issues.apache.org/jira/browse/HDFS-8357) | Consolidate parameters of INode.CleanSubtree() into a parameter objects. | Major | . | Haohui Mai | Li Lu | +| [HADOOP-11950](https://issues.apache.org/jira/browse/HADOOP-11950) | Add cli option to test-patch to set the project-under-test | Minor | . | Sean Busbey | Sean Busbey | +| [HADOOP-11948](https://issues.apache.org/jira/browse/HADOOP-11948) | test-patch's issue matching regex should be configurable. | Major | . | Sean Busbey | Sean Busbey | +| [MAPREDUCE-5465](https://issues.apache.org/jira/browse/MAPREDUCE-5465) | Tasks are often killed before they exit on their own | Major | mr-am, mrv2 | Radim Kolar | Ming Ma | +| [YARN-3513](https://issues.apache.org/jira/browse/YARN-3513) | Remove unused variables in ContainersMonitorImpl and add debug log for overall resource usage by all containers | Trivial | nodemanager | Naganarasimha G R | Naganarasimha G R | +| [HDFS-8255](https://issues.apache.org/jira/browse/HDFS-8255) | Rename getBlockReplication to getPreferredBlockReplication | Major | . | Zhe Zhang | Zhe Zhang | +| [YARN-3613](https://issues.apache.org/jira/browse/YARN-3613) | TestContainerManagerSecurity should init and start Yarn cluster in setup instead of individual methods | Minor | test | Karthik Kambatla | nijel | +| [HDFS-6184](https://issues.apache.org/jira/browse/HDFS-6184) | Capture NN's thread dump when it fails over | Major | namenode | Ming Ma | Ming Ma | +| [YARN-3539](https://issues.apache.org/jira/browse/YARN-3539) | Compatibility doc to state that ATS v1 is a stable REST API | Major | documentation | Steve Loughran | Steve Loughran | +| [HADOOP-9723](https://issues.apache.org/jira/browse/HADOOP-9723) | Improve error message when hadoop archive output path already exists | Trivial | . | Stephen Chu | Yongjun Zhang | +| [HADOOP-10993](https://issues.apache.org/jira/browse/HADOOP-10993) | Dump java command line to \*.out file | Minor | . | Allen Wittenauer | Kengo Seki | +| [HADOOP-11713](https://issues.apache.org/jira/browse/HADOOP-11713) | ViewFileSystem should support snapshot methods. | Major | fs | Chris Nauroth | Rakesh R | +| [HDFS-8350](https://issues.apache.org/jira/browse/HDFS-8350) | Remove old webhdfs.xml and other outdated documentation stuff | Major | documentation | Akira Ajisaka | Brahma Reddy Battula | +| [HADOOP-11960](https://issues.apache.org/jira/browse/HADOOP-11960) | Enable Azure-Storage Client Side logging. | Major | tools | Dushyanth | Dushyanth | +| [HDFS-6888](https://issues.apache.org/jira/browse/HDFS-6888) | Allow selectively audit logging ops | Major | . | Kihwal Lee | Chen He | +| [HDFS-8397](https://issues.apache.org/jira/browse/HDFS-8397) | Refactor the error handling code in DataStreamer | Minor | hdfs-client | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [HDFS-8394](https://issues.apache.org/jira/browse/HDFS-8394) | Move getAdditionalBlock() and related functionalities into a separate class | Major | . | Haohui Mai | Haohui Mai | +| [HADOOP-11939](https://issues.apache.org/jira/browse/HADOOP-11939) | Deprecate DistCpV1 and Logalyzer | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-4185](https://issues.apache.org/jira/browse/HDFS-4185) | Add a metric for number of active leases | Major | namenode | Kihwal Lee | Rakesh R | +| [HADOOP-1540](https://issues.apache.org/jira/browse/HADOOP-1540) | Support file exclusion list in distcp | Minor | util | Senthil Subramanian | Rich Haase | +| [HADOOP-11103](https://issues.apache.org/jira/browse/HADOOP-11103) | Clean up RemoteException | Trivial | ipc | Sean Busbey | Sean Busbey | +| [HDFS-8131](https://issues.apache.org/jira/browse/HDFS-8131) | Implement a space balanced block placement policy | Minor | namenode | Liu Shaohui | Liu Shaohui | +| [HADOOP-11970](https://issues.apache.org/jira/browse/HADOOP-11970) | Replace uses of ThreadLocal\<Random\> with JDK7 ThreadLocalRandom | Major | . | Sean Busbey | Sean Busbey | +| [HADOOP-11995](https://issues.apache.org/jira/browse/HADOOP-11995) | Make jetty version configurable from the maven command line | Trivial | build, ld | sriharsha devineni | sriharsha devineni | +| [HDFS-4383](https://issues.apache.org/jira/browse/HDFS-4383) | Document the lease limits | Minor | . | Eli Collins | Arshad Mohammad | +| [HADOOP-10366](https://issues.apache.org/jira/browse/HADOOP-10366) | Add whitespaces between the classes for values in core-default.xml to fit better in browser | Minor | documentation | Chengwei Yang | Kanaka Kumar Avvaru | +| [HADOOP-11594](https://issues.apache.org/jira/browse/HADOOP-11594) | Improve the readability of site index of documentation | Minor | documentation | Masatake Iwasaki | Masatake Iwasaki | +| [YARN-160](https://issues.apache.org/jira/browse/YARN-160) | nodemanagers should obtain cpu/memory values from underlying OS | Major | nodemanager | Alejandro Abdelnur | Varun Vasudev | +| [HADOOP-11242](https://issues.apache.org/jira/browse/HADOOP-11242) | Record the time of calling in tracing span of IPC server | Minor | ipc | Masatake Iwasaki | Masatake Iwasaki | +| [HDFS-5033](https://issues.apache.org/jira/browse/HDFS-5033) | Bad error message for fs -put/copyFromLocal if user doesn't have permissions to read the source | Minor | . | Karthik Kambatla | Darrell Taylor | +| [YARN-3722](https://issues.apache.org/jira/browse/YARN-3722) | Merge multiple TestWebAppUtils into o.a.h.yarn.webapp.util.TestWebAppUtils | Minor | test | Masatake Iwasaki | Masatake Iwasaki | +| [HADOOP-11142](https://issues.apache.org/jira/browse/HADOOP-11142) | Remove hdfs dfs reference from file system shell documentation | Minor | documentation | Jonathan Allen | Kengo Seki | +| [HADOOP-11894](https://issues.apache.org/jira/browse/HADOOP-11894) | Bump the version of Apache HTrace to 3.2.0-incubating | Major | . | Masatake Iwasaki | Masatake Iwasaki | +| [YARN-3489](https://issues.apache.org/jira/browse/YARN-3489) | RMServerUtils.validateResourceRequests should only obtain queue info once | Major | resourcemanager | Jason Lowe | Varun Saxena | +| [HDFS-8443](https://issues.apache.org/jira/browse/HDFS-8443) | Document dfs.namenode.service.handler.count in hdfs-site.xml | Major | documentation | Akira Ajisaka | J.Andreina | +| [YARN-3547](https://issues.apache.org/jira/browse/YARN-3547) | FairScheduler: Apps that have no resource demand should not participate scheduling | Major | fairscheduler | Xianyin Xin | Xianyin Xin | +| [YARN-3713](https://issues.apache.org/jira/browse/YARN-3713) | Remove duplicate function call storeContainerDiagnostics in ContainerDiagnosticsUpdateTransition | Minor | nodemanager | zhihai xu | zhihai xu | +| [HADOOP-12043](https://issues.apache.org/jira/browse/HADOOP-12043) | Display warning if defaultFs is not set when running fs commands. | Minor | fs | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [YARN-3467](https://issues.apache.org/jira/browse/YARN-3467) | Expose allocatedMB, allocatedVCores, and runningContainers metrics on running Applications in RM Web UI | Minor | webapp, yarn | Anthony Rojas | Anubhav Dhoot | +| [HDFS-8490](https://issues.apache.org/jira/browse/HDFS-8490) | Typo in trace enabled log in ExceptionHandler of WebHDFS | Trivial | webhdfs | Jakob Homan | Archana T | +| [HDFS-8521](https://issues.apache.org/jira/browse/HDFS-8521) | Add @VisibleForTesting annotation to {{BlockPoolSlice#selectReplicaToDelete}} | Trivial | . | Colin P. McCabe | Colin P. McCabe | +| [MAPREDUCE-6174](https://issues.apache.org/jira/browse/MAPREDUCE-6174) | Combine common stream code into parent class for InMemoryMapOutput and OnDiskMapOutput. | Major | mrv2 | Eric Payne | Eric Payne | +| [HDFS-8532](https://issues.apache.org/jira/browse/HDFS-8532) | Make the visibility of DFSOutputStream#streamer member variable to private | Trivial | . | Rakesh R | Rakesh R | +| [HDFS-8535](https://issues.apache.org/jira/browse/HDFS-8535) | Clarify that dfs usage in dfsadmin -report output includes all block replicas. | Minor | documentation | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [MAPREDUCE-6383](https://issues.apache.org/jira/browse/MAPREDUCE-6383) | Pi job (QuasiMonteCarlo) should not try to read the results file if its job fails | Major | examples | Harsh J | Harsh J | +| [YARN-3259](https://issues.apache.org/jira/browse/YARN-3259) | FairScheduler: Trigger fairShare updates on node events | Major | fairscheduler | Anubhav Dhoot | Anubhav Dhoot | +| [HADOOP-12059](https://issues.apache.org/jira/browse/HADOOP-12059) | S3Credentials should support use of CredentialProvider | Major | fs/s3 | Sean Busbey | Sean Busbey | +| [MAPREDUCE-6354](https://issues.apache.org/jira/browse/MAPREDUCE-6354) | ShuffleHandler should be able to log shuffle connections | Major | . | Chang Li | Chang Li | +| [HADOOP-12055](https://issues.apache.org/jira/browse/HADOOP-12055) | Deprecate usage of NativeIO#link | Major | native | Andrew Wang | Andrew Wang | +| [HDFS-8432](https://issues.apache.org/jira/browse/HDFS-8432) | Introduce a minimum compatible layout version to allow downgrade in more rolling upgrade use cases. | Major | namenode, rolling upgrades | Chris Nauroth | Chris Nauroth | +| [HDFS-8116](https://issues.apache.org/jira/browse/HDFS-8116) | Cleanup uncessary if LOG.isDebugEnabled() from RollingWindowManager | Trivial | namenode | Xiaoyu Yao | Brahma Reddy Battula | +| [YARN-2716](https://issues.apache.org/jira/browse/YARN-2716) | Refactor ZKRMStateStore retry code with Apache Curator | Major | . | Jian He | Karthik Kambatla | +| [HDFS-8553](https://issues.apache.org/jira/browse/HDFS-8553) | Document hdfs class path options | Major | documentation | Xiaoyu Yao | Brahma Reddy Battula | +| [YARN-3786](https://issues.apache.org/jira/browse/YARN-3786) | Document yarn class path options | Major | documentation | Brahma Reddy Battula | Brahma Reddy Battula | +| [MAPREDUCE-6392](https://issues.apache.org/jira/browse/MAPREDUCE-6392) | Document mapred class path options | Major | documentation | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-8549](https://issues.apache.org/jira/browse/HDFS-8549) | Abort the balancer if an upgrade is in progress | Major | balancer & mover | Andrew Wang | Andrew Wang | +| [HDFS-8573](https://issues.apache.org/jira/browse/HDFS-8573) | Move creation of restartMeta file logic from BlockReceiver to ReplicaInPipeline | Major | datanode | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [HADOOP-11971](https://issues.apache.org/jira/browse/HADOOP-11971) | Move test utilities for tracing from hadoop-hdfs to hadoop-common | Minor | tracing | Masatake Iwasaki | Masatake Iwasaki | +| [HDFS-8361](https://issues.apache.org/jira/browse/HDFS-8361) | Choose SSD over DISK in block placement | Major | namenode | Tsz Wo Nicholas Sze | Tsz Wo Nicholas Sze | +| [YARN-3789](https://issues.apache.org/jira/browse/YARN-3789) | Improve logs for LeafQueue#activateApplications() | Minor | resourcemanager | Bibin A Chundatt | Bibin A Chundatt | +| [HDFS-8606](https://issues.apache.org/jira/browse/HDFS-8606) | Cleanup DFSOutputStream by removing unwanted changes | Minor | hdfs-client | Rakesh R | Rakesh R | +| [YARN-3148](https://issues.apache.org/jira/browse/YARN-3148) | Allow CORS related headers to passthrough in WebAppProxyServlet | Major | . | Prakash Ramachandran | Varun Saxena | +| [HDFS-8589](https://issues.apache.org/jira/browse/HDFS-8589) | Fix unused imports in BPServiceActor and BlockReportLeaseManager | Trivial | . | Colin P. McCabe | Colin P. McCabe | +| [HADOOP-7139](https://issues.apache.org/jira/browse/HADOOP-7139) | Allow appending to existing SequenceFiles | Major | io | Stephen Rose | Kanaka Kumar Avvaru | +| [HDFS-8605](https://issues.apache.org/jira/browse/HDFS-8605) | Merge Refactor of DFSOutputStream from HDFS-7285 branch | Major | . | Vinayakumar B | Vinayakumar B | +| [MAPREDUCE-6395](https://issues.apache.org/jira/browse/MAPREDUCE-6395) | Improve the commit failure messages in MRAppMaster recovery | Major | applicationmaster | Gera Shegalov | Brahma Reddy Battula | +| [HDFS-8582](https://issues.apache.org/jira/browse/HDFS-8582) | Support getting a list of reconfigurable config properties and do not generate spurious reconfig warnings | Minor | datanode, hdfs-client | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [MAPREDUCE-6316](https://issues.apache.org/jira/browse/MAPREDUCE-6316) | Task Attempt List entries should link to the task overview | Major | . | Siqi Li | Siqi Li | +| [MAPREDUCE-6305](https://issues.apache.org/jira/browse/MAPREDUCE-6305) | AM/Task log page should be able to link back to the job | Major | . | Siqi Li | Siqi Li | +| [YARN-3834](https://issues.apache.org/jira/browse/YARN-3834) | Scrub debug logging of tokens during resource localization. | Major | nodemanager | Chris Nauroth | Chris Nauroth | +| [MAPREDUCE-6408](https://issues.apache.org/jira/browse/MAPREDUCE-6408) | Queue name and user name should be printed on the job page | Major | applicationmaster | Siqi Li | Siqi Li | +| [HDFS-8639](https://issues.apache.org/jira/browse/HDFS-8639) | Option for HTTP port of NameNode by MiniDFSClusterManager | Minor | test | Kai Sasaki | Kai Sasaki | +| [YARN-3360](https://issues.apache.org/jira/browse/YARN-3360) | Add JMX metrics to TimelineDataManager | Major | timelineserver | Jason Lowe | Jason Lowe | +| [HADOOP-12049](https://issues.apache.org/jira/browse/HADOOP-12049) | Control http authentication cookie persistence via configuration | Major | security | Benoy Antony | Huizhi Lu | +| [HDFS-8462](https://issues.apache.org/jira/browse/HDFS-8462) | Implement GETXATTRS and LISTXATTRS operations for WebImageViewer | Major | . | Akira Ajisaka | Jagadesh Kiran N | +| [HDFS-8640](https://issues.apache.org/jira/browse/HDFS-8640) | Make reserved RBW space visible through JMX | Major | . | Kanaka Kumar Avvaru | Kanaka Kumar Avvaru | +| [HDFS-8546](https://issues.apache.org/jira/browse/HDFS-8546) | Use try with resources in DataStorage and Storage | Minor | datanode | Andrew Wang | Andrew Wang | +| [HADOOP-11203](https://issues.apache.org/jira/browse/HADOOP-11203) | Allow ditscp to accept bandwitdh in fraction MegaBytes | Major | tools/distcp | Raju Bairishetti | Raju Bairishetti | +| [HADOOP-11807](https://issues.apache.org/jira/browse/HADOOP-11807) | add a lint mode to releasedocmaker | Minor | build, documentation, yetus | Allen Wittenauer | ramtin | +| [HDFS-8653](https://issues.apache.org/jira/browse/HDFS-8653) | Code cleanup for DatanodeManager, DatanodeDescriptor and DatanodeStorageInfo | Major | . | Zhe Zhang | Zhe Zhang | +| [HDFS-8659](https://issues.apache.org/jira/browse/HDFS-8659) | Block scanner INFO message is spamming logs | Major | datanode | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-12149](https://issues.apache.org/jira/browse/HADOOP-12149) | copy all of test-patch BINDIR prior to re-exec | Blocker | yetus | Allen Wittenauer | Allen Wittenauer | +| [MAPREDUCE-6384](https://issues.apache.org/jira/browse/MAPREDUCE-6384) | Add the last reporting reducer info for too many fetch failure diagnostics | Major | . | Chang Li | Chang Li | +| [HADOOP-12158](https://issues.apache.org/jira/browse/HADOOP-12158) | Improve error message in TestCryptoStreamsWithOpensslAesCtrCryptoCodec when OpenSSL is not installed | Trivial | test | Andrew Wang | Andrew Wang | +| [HADOOP-12172](https://issues.apache.org/jira/browse/HADOOP-12172) | FsShell mkdir -p makes an unnecessary check for the existence of the parent. | Minor | fs | Chris Nauroth | Chris Nauroth | +| [HDFS-8703](https://issues.apache.org/jira/browse/HDFS-8703) | Merge refactor of DFSInputStream from ErasureCoding branch | Major | . | Vinayakumar B | Vinayakumar B | +| [HDFS-8709](https://issues.apache.org/jira/browse/HDFS-8709) | Clarify automatic sync in FSEditLog#logEdit | Minor | . | Andrew Wang | Andrew Wang | +| [HADOOP-12045](https://issues.apache.org/jira/browse/HADOOP-12045) | Enable LocalFileSystem#setTimes to change atime | Minor | fs | Kazuho Fujii | Kazuho Fujii | +| [HADOOP-12185](https://issues.apache.org/jira/browse/HADOOP-12185) | NetworkTopology is not efficient adding/getting/removing nodes | Major | . | Inigo Goiri | Inigo Goiri | +| [HADOOP-12135](https://issues.apache.org/jira/browse/HADOOP-12135) | cleanup releasedocmaker | Major | yetus | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12195](https://issues.apache.org/jira/browse/HADOOP-12195) | Add annotation to package-info.java file to workaround MCOMPILER-205 | Trivial | . | Andrew Wang | Andrew Wang | +| [HADOOP-12193](https://issues.apache.org/jira/browse/HADOOP-12193) | Rename Touchz.java to Touch.java | Trivial | . | Andrew Wang | Andrew Wang | +| [HDFS-8711](https://issues.apache.org/jira/browse/HDFS-8711) | setSpaceQuota command should print the available storage type when input storage type is wrong | Major | hdfs-client | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [HDFS-8712](https://issues.apache.org/jira/browse/HDFS-8712) | Remove "public" and "abstract" modifiers in FsVolumeSpi and FsDatasetSpi | Trivial | . | Lei (Eddy) Xu | Lei (Eddy) Xu | +| [HADOOP-12194](https://issues.apache.org/jira/browse/HADOOP-12194) | Support for incremental generation in the protoc plugin | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-12180](https://issues.apache.org/jira/browse/HADOOP-12180) | Move ResourceCalculatorPlugin from YARN to Common | Major | util | Chris Douglas | Chris Douglas | +| [HADOOP-12210](https://issues.apache.org/jira/browse/HADOOP-12210) | Collect network usage on the node | Major | . | Robert Grandl | Robert Grandl | +| [YARN-3069](https://issues.apache.org/jira/browse/YARN-3069) | Document missing properties in yarn-default.xml | Major | documentation | Ray Chiang | Ray Chiang | +| [YARN-3381](https://issues.apache.org/jira/browse/YARN-3381) | Fix typo InvalidStateTransitonException | Minor | api | Xiaoshuang LU | Brahma Reddy Battula | +| [HADOOP-12211](https://issues.apache.org/jira/browse/HADOOP-12211) | Collect disks usages on the node | Major | . | Robert Grandl | Robert Grandl | +| [HDFS-8722](https://issues.apache.org/jira/browse/HDFS-8722) | Optimize datanode writes for small writes and flushes | Critical | . | Kihwal Lee | Kihwal Lee | +| [HADOOP-12232](https://issues.apache.org/jira/browse/HADOOP-12232) | Upgrade Tomcat dependency to 6.0.44. | Major | build | Chris Nauroth | Chris Nauroth | +| [YARN-3170](https://issues.apache.org/jira/browse/YARN-3170) | YARN architecture document needs updating | Major | documentation | Allen Wittenauer | Brahma Reddy Battula | +| [YARN-3174](https://issues.apache.org/jira/browse/YARN-3174) | Consolidate the NodeManager and NodeManagerRestart documentation into one | Major | documentation | Allen Wittenauer | Masatake Iwasaki | +| [HDFS-7314](https://issues.apache.org/jira/browse/HDFS-7314) | When the DFSClient lease cannot be renewed, abort open-for-write files rather than the entire DFSClient | Major | . | Ming Ma | Ming Ma | +| [HADOOP-10979](https://issues.apache.org/jira/browse/HADOOP-10979) | Auto-entries in hadoop\_usage | Minor | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-11893](https://issues.apache.org/jira/browse/HADOOP-11893) | Mark org.apache.hadoop.security.token.Token as @InterfaceAudience.Public | Major | security | Steve Loughran | Brahma Reddy Battula | +| [HADOOP-12081](https://issues.apache.org/jira/browse/HADOOP-12081) | Fix UserGroupInformation.java to support 64-bit zLinux | Major | security | Adam Roberts | Akira Ajisaka | +| [HADOOP-12214](https://issues.apache.org/jira/browse/HADOOP-12214) | Parse 'HadoopArchive' commandline using cli Options. | Minor | . | Vinayakumar B | Vinayakumar B | +| [YARN-3261](https://issues.apache.org/jira/browse/YARN-3261) | rewrite resourcemanager restart doc to remove roadmap bits | Major | documentation | Allen Wittenauer | Gururaj Shetty | +| [YARN-2921](https://issues.apache.org/jira/browse/YARN-2921) | Fix MockRM/MockAM#waitForState sleep too long | Major | test | Karthik Kambatla | Tsuyoshi Ozawa | +| [HADOOP-12161](https://issues.apache.org/jira/browse/HADOOP-12161) | Add getStoragePolicy API to the FileSystem interface | Major | . | Arpit Agarwal | Brahma Reddy Battula | +| [HADOOP-12189](https://issues.apache.org/jira/browse/HADOOP-12189) | Improve CallQueueManager#swapQueue to make queue elements drop nearly impossible. | Major | ipc, test | zhihai xu | zhihai xu | +| [HADOOP-12009](https://issues.apache.org/jira/browse/HADOOP-12009) | Clarify FileSystem.listStatus() sorting order & fix FileSystemContractBaseTest:testListStatus | Minor | documentation, fs, test | Jakob Homan | J.Andreina | +| [HADOOP-12259](https://issues.apache.org/jira/browse/HADOOP-12259) | Utility to Dynamic port allocation | Major | test, util | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-8735](https://issues.apache.org/jira/browse/HDFS-8735) | Inotify : All events classes should implement toString() API. | Major | hdfs-client | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [HDFS-7858](https://issues.apache.org/jira/browse/HDFS-7858) | Improve HA Namenode Failover detection on the client | Major | hdfs-client | Arun Suresh | Arun Suresh | +| [HDFS-8180](https://issues.apache.org/jira/browse/HDFS-8180) | AbstractFileSystem Implementation for WebHdfs | Major | webhdfs | Santhosh G Nayak | Santhosh G Nayak | +| [HDFS-8811](https://issues.apache.org/jira/browse/HDFS-8811) | Move BlockStoragePolicy name's constants from HdfsServerConstants.java to HdfsConstants.java | Major | . | Vinayakumar B | Vinayakumar B | +| [HDFS-8822](https://issues.apache.org/jira/browse/HDFS-8822) | Add SSD storagepolicy tests in TestBlockStoragePolicy#testDefaultPolicies | Major | . | Vinayakumar B | Vinayakumar B | +| [YARN-3950](https://issues.apache.org/jira/browse/YARN-3950) | Add unique YARN\_SHELL\_ID environment variable to DistributedShell | Major | applications/distributed-shell | Robert Kanter | Robert Kanter | +| [YARN-2768](https://issues.apache.org/jira/browse/YARN-2768) | Avoid cloning Resource in FSAppAttempt#updateDemand | Minor | fairscheduler | Hong Zhiguo | Hong Zhiguo | +| [HDFS-8816](https://issues.apache.org/jira/browse/HDFS-8816) | Improve visualization for the Datanode tab in the NN UI | Major | . | Haohui Mai | Haohui Mai | +| [HDFS-8821](https://issues.apache.org/jira/browse/HDFS-8821) | Explain message "Operation category X is not supported in state standby" | Minor | . | Gautam Gopalakrishnan | Gautam Gopalakrishnan | +| [HADOOP-12271](https://issues.apache.org/jira/browse/HADOOP-12271) | Hadoop Jar Error Should Be More Explanatory | Minor | . | Jesse Anderson | Josh Elser | +| [HADOOP-12249](https://issues.apache.org/jira/browse/HADOOP-12249) | pull argument parsing into a function | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-12183](https://issues.apache.org/jira/browse/HADOOP-12183) | Annotate the HTrace span created by FsShell with the command-line arguments passed by the user | Minor | tracing | Masatake Iwasaki | Masatake Iwasaki | +| [YARN-3978](https://issues.apache.org/jira/browse/YARN-3978) | Configurably turn off the saving of container info in Generic AHS | Major | timelineserver, yarn | Eric Payne | Eric Payne | +| [YARN-3965](https://issues.apache.org/jira/browse/YARN-3965) | Ad
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