http://git-wip-us.apache.org/repos/asf/hadoop/blob/ff02bdfe/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha2/CHANGES.3.0.0-alpha2.md ---------------------------------------------------------------------- diff --git a/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha2/CHANGES.3.0.0-alpha2.md b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha2/CHANGES.3.0.0-alpha2.md new file mode 100644 index 0000000..ac46033 --- /dev/null +++ b/hadoop-common-project/hadoop-common/src/site/markdown/release/3.0.0-alpha2/CHANGES.3.0.0-alpha2.md @@ -0,0 +1,927 @@ + +<!--- +# 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-alpha2 - 2017-01-20 + +### INCOMPATIBLE CHANGES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-13361](https://issues.apache.org/jira/browse/HADOOP-13361) | Modify hadoop\_verify\_user to be consistent with hadoop\_subcommand\_opts (ie more granularity) | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HDFS-6962](https://issues.apache.org/jira/browse/HDFS-6962) | ACL inheritance conflicts with umaskmode | Critical | security | LINTE | John Zhuge | +| [HADOOP-13341](https://issues.apache.org/jira/browse/HADOOP-13341) | Deprecate HADOOP\_SERVERNAME\_OPTS; replace with (command)\_(subcommand)\_OPTS | Major | scripts | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-13588](https://issues.apache.org/jira/browse/HADOOP-13588) | ConfServlet should respect Accept request header | Major | conf | Weiwei Yang | Weiwei Yang | +| [HDFS-10636](https://issues.apache.org/jira/browse/HDFS-10636) | Modify ReplicaInfo to remove the assumption that replica metadata and data are stored in java.io.File. | Major | datanode, fs | Virajith Jalaparti | Virajith Jalaparti | +| [HADOOP-13218](https://issues.apache.org/jira/browse/HADOOP-13218) | Migrate other Hadoop side tests to prepare for removing WritableRPCEngine | Major | test | Kai Zheng | Wei Zhou | +| [HDFS-10877](https://issues.apache.org/jira/browse/HDFS-10877) | Make RemoteEditLogManifest.committedTxnId optional in Protocol Buffers | Major | qjm | Sean Mackrory | Sean Mackrory | +| [HADOOP-13681](https://issues.apache.org/jira/browse/HADOOP-13681) | Reduce Kafka dependencies in hadoop-kafka module | Major | metrics | Grant Henke | Grant Henke | +| [HADOOP-13678](https://issues.apache.org/jira/browse/HADOOP-13678) | Update jackson from 1.9.13 to 2.x in hadoop-tools | Major | tools | Akira Ajisaka | Akira Ajisaka | +| [MAPREDUCE-6776](https://issues.apache.org/jira/browse/MAPREDUCE-6776) | yarn.app.mapreduce.client.job.max-retries should have a more useful default | Major | client | Daniel Templeton | Miklos Szegedi | +| [HADOOP-13699](https://issues.apache.org/jira/browse/HADOOP-13699) | Configuration does not substitute multiple references to the same var | Critical | conf | Andrew Wang | Andrew Wang | +| [HDFS-10637](https://issues.apache.org/jira/browse/HDFS-10637) | Modifications to remove the assumption that FsVolumes are backed by java.io.File. | Major | datanode, fs | Virajith Jalaparti | Virajith Jalaparti | +| [HDFS-10916](https://issues.apache.org/jira/browse/HDFS-10916) | Switch from "raw" to "system" xattr namespace for erasure coding policy | Major | erasure-coding | Andrew Wang | Andrew Wang | +| [YARN-4464](https://issues.apache.org/jira/browse/YARN-4464) | Lower the default max applications stored in the RM and store | Blocker | resourcemanager | KWON BYUNGCHANG | Daniel Templeton | +| [HADOOP-13721](https://issues.apache.org/jira/browse/HADOOP-13721) | Remove stale method ViewFileSystem#getTrashCanLocation | Minor | viewfs | Manoj Govindassamy | Manoj Govindassamy | +| [HDFS-10957](https://issues.apache.org/jira/browse/HDFS-10957) | Retire BKJM from trunk | Major | ha | Vinayakumar B | Vinayakumar B | +| [HADOOP-13560](https://issues.apache.org/jira/browse/HADOOP-13560) | S3ABlockOutputStream to support huge (many GB) file writes | Major | fs/s3 | Steve Loughran | Steve Loughran | +| [MAPREDUCE-6791](https://issues.apache.org/jira/browse/MAPREDUCE-6791) | remove unnecessary dependency from hadoop-mapreduce-client-jobclient to hadoop-mapreduce-client-shuffle | Minor | mrv2 | Haibo Chen | Haibo Chen | +| [HADOOP-7352](https://issues.apache.org/jira/browse/HADOOP-7352) | FileSystem#listStatus should throw IOE upon access error | Major | fs | Matt Foley | John Zhuge | +| [HADOOP-13693](https://issues.apache.org/jira/browse/HADOOP-13693) | Remove the message about HTTP OPTIONS in SPNEGO initialization message from kms audit log | Minor | kms | Xiao Chen | Xiao Chen | +| [YARN-5388](https://issues.apache.org/jira/browse/YARN-5388) | Deprecate and remove DockerContainerExecutor | Critical | nodemanager | Daniel Templeton | Daniel Templeton | +| [YARN-3732](https://issues.apache.org/jira/browse/YARN-3732) | Change NodeHeartbeatResponse.java and RegisterNodeManagerResponse.java as abstract classes | Minor | . | Devaraj K | Devaraj K | +| [HDFS-11048](https://issues.apache.org/jira/browse/HDFS-11048) | Audit Log should escape control characters | Major | . | Eric Badger | Eric Badger | +| [HADOOP-13792](https://issues.apache.org/jira/browse/HADOOP-13792) | Stackoverflow for schemeless defaultFS with trailing slash | Major | fs | Darius Murawski | John Zhuge | +| [HDFS-10970](https://issues.apache.org/jira/browse/HDFS-10970) | Update jackson from 1.9.13 to 2.x in hadoop-hdfs | Major | build | Akira Ajisaka | Akira Ajisaka | +| [HDFS-11116](https://issues.apache.org/jira/browse/HDFS-11116) | Fix javac warnings caused by deprecation of APIs in TestViewFsDefaultValue | Minor | . | Yiqun Lin | Yiqun Lin | +| [HADOOP-12718](https://issues.apache.org/jira/browse/HADOOP-12718) | Incorrect error message by fs -put local dir without permission | Major | . | John Zhuge | John Zhuge | +| [YARN-5825](https://issues.apache.org/jira/browse/YARN-5825) | ProportionalPreemptionalPolicy could use readLock over LeafQueue instead of synchronized block | Major | capacity scheduler | Sunil G | Sunil G | +| [HADOOP-12705](https://issues.apache.org/jira/browse/HADOOP-12705) | Upgrade Jackson 2.2.3 to 2.7.8 | Major | build | Steve Loughran | Sean Mackrory | +| [YARN-5713](https://issues.apache.org/jira/browse/YARN-5713) | Update jackson from 1.9.13 to 2.x in hadoop-yarn | Major | build, timelineserver | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-13050](https://issues.apache.org/jira/browse/HADOOP-13050) | Upgrade to AWS SDK 1.11.45 | Blocker | build, fs/s3 | Steve Loughran | Steve Loughran | +| [HADOOP-13706](https://issues.apache.org/jira/browse/HADOOP-13706) | Update jackson from 1.9.13 to 2.x in hadoop-common-project | Major | build | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-13812](https://issues.apache.org/jira/browse/HADOOP-13812) | Upgrade Tomcat to 6.0.48 | Blocker | kms | John Zhuge | John Zhuge | +| [HDFS-5517](https://issues.apache.org/jira/browse/HDFS-5517) | Lower the default maximum number of blocks per file | Major | namenode | Aaron T. Myers | Aaron T. Myers | +| [HADOOP-13842](https://issues.apache.org/jira/browse/HADOOP-13842) | Update jackson from 1.9.13 to 2.x in hadoop-maven-plugins | Minor | build | Akira Ajisaka | Akira Ajisaka | +| [MAPREDUCE-4683](https://issues.apache.org/jira/browse/MAPREDUCE-4683) | Create and distribute hadoop-mapreduce-client-core-tests.jar | Critical | build | Arun C Murthy | Akira Ajisaka | +| [HADOOP-13597](https://issues.apache.org/jira/browse/HADOOP-13597) | Switch KMS from Tomcat to Jetty | Major | kms | John Zhuge | John Zhuge | +| [YARN-6071](https://issues.apache.org/jira/browse/YARN-6071) | Fix incompatible API change on AM-RM protocol due to YARN-3866 (trunk only) | Blocker | . | Junping Du | Wangda Tan | +| [HADOOP-13964](https://issues.apache.org/jira/browse/HADOOP-13964) | Remove vestigal templates directories creation | Major | build | Allen Wittenauer | Allen Wittenauer | + + +### IMPORTANT ISSUES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | + + +### NEW FEATURES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HADOOP-12756](https://issues.apache.org/jira/browse/HADOOP-12756) | Incorporate Aliyun OSS file system implementation | Major | fs | shimingfei | shimingfei | +| [MAPREDUCE-6774](https://issues.apache.org/jira/browse/MAPREDUCE-6774) | Add support for HDFS erasure code policy to TestDFSIO | Major | . | SammiChen | SammiChen | +| [HDFS-10918](https://issues.apache.org/jira/browse/HDFS-10918) | Add a tool to get FileEncryptionInfo from CLI | Major | encryption | Xiao Chen | Xiao Chen | +| [HADOOP-13584](https://issues.apache.org/jira/browse/HADOOP-13584) | hadoop-aliyun: merge HADOOP-12756 branch back | Major | fs | shimingfei | Genmao Yu | +| [HDFS-9820](https://issues.apache.org/jira/browse/HDFS-9820) | Improve distcp to support efficient restore to an earlier snapshot | Major | distcp | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-13716](https://issues.apache.org/jira/browse/HADOOP-13716) | Add LambdaTestUtils class for tests; fix eventual consistency problem in contract test setup | Major | test | Steve Loughran | Steve Loughran | +| [YARN-4597](https://issues.apache.org/jira/browse/YARN-4597) | Introduce ContainerScheduler and a SCHEDULED state to NodeManager container lifecycle | Major | nodemanager | Chris Douglas | Arun Suresh | +| [HADOOP-13852](https://issues.apache.org/jira/browse/HADOOP-13852) | hadoop build to allow hadoop version property to be explicitly set | Minor | build | Steve Loughran | Steve Loughran | +| [HADOOP-13578](https://issues.apache.org/jira/browse/HADOOP-13578) | Add Codec for ZStandard Compression | Major | . | churro morales | churro morales | +| [HADOOP-13933](https://issues.apache.org/jira/browse/HADOOP-13933) | Add haadmin -getAllServiceState option to get the HA state of all the NameNodes/ResourceManagers | Major | tools | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [HADOOP-13673](https://issues.apache.org/jira/browse/HADOOP-13673) | Update scripts to be smarter when running with privilege | Major | scripts | Allen Wittenauer | Allen Wittenauer | + + +### IMPROVEMENTS: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [HDFS-10814](https://issues.apache.org/jira/browse/HDFS-10814) | Add assertion for getNumEncryptionZones when no EZ is created | Minor | test | Vinitha Reddy Gankidi | Vinitha Reddy Gankidi | +| [HDFS-10784](https://issues.apache.org/jira/browse/HDFS-10784) | Implement WebHdfsFileSystem#listStatusIterator | Major | webhdfs | Andrew Wang | Andrew Wang | +| [HDFS-10817](https://issues.apache.org/jira/browse/HDFS-10817) | Add Logging for Long-held NN Read Locks | Major | logging, namenode | Erik Krogen | Erik Krogen | +| [HADOOP-13465](https://issues.apache.org/jira/browse/HADOOP-13465) | Design Server.Call to be extensible for unified call queue | Major | ipc | Daryn Sharp | Daryn Sharp | +| [HDFS-10822](https://issues.apache.org/jira/browse/HDFS-10822) | Log DataNodes in the write pipeline | Trivial | hdfs-client | John Zhuge | John Zhuge | +| [HDFS-10833](https://issues.apache.org/jira/browse/HDFS-10833) | Fix JSON errors in WebHDFS.md examples | Trivial | documentation | Andrew Wang | Andrew Wang | +| [YARN-5616](https://issues.apache.org/jira/browse/YARN-5616) | Clean up WeightAdjuster | Major | fairscheduler | Yufei Gu | Yufei Gu | +| [HDFS-10778](https://issues.apache.org/jira/browse/HDFS-10778) | Add -format option to make the output of FileDistribution processor human-readable in OfflineImageViewer | Major | tools | Yiqun Lin | Yiqun Lin | +| [HDFS-10847](https://issues.apache.org/jira/browse/HDFS-10847) | Complete the document for FileDistribution processor in OfflineImageViewer | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [HADOOP-13519](https://issues.apache.org/jira/browse/HADOOP-13519) | Make Path serializable | Minor | io | Steve Loughran | Steve Loughran | +| [HDFS-10742](https://issues.apache.org/jira/browse/HDFS-10742) | Measure lock time in FsDatasetImpl | Major | datanode | Chen Liang | Chen Liang | +| [HDFS-10831](https://issues.apache.org/jira/browse/HDFS-10831) | Add log when URLConnectionFactory.openConnection failed | Minor | webhdfs | yunjiong zhao | yunjiong zhao | +| [HDFS-10855](https://issues.apache.org/jira/browse/HDFS-10855) | Fix typos in HDFS documents | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [HDFS-10837](https://issues.apache.org/jira/browse/HDFS-10837) | Standardize serializiation of WebHDFS DirectoryListing | Major | webhdfs | Andrew Wang | Andrew Wang | +| [HADOOP-13598](https://issues.apache.org/jira/browse/HADOOP-13598) | Add eol=lf for unix format files in .gitattributes | Major | . | Akira Ajisaka | Yiqun Lin | +| [HADOOP-13606](https://issues.apache.org/jira/browse/HADOOP-13606) | swift FS to add a service load metadata file | Major | fs/swift | Steve Loughran | Steve Loughran | +| [HADOOP-13411](https://issues.apache.org/jira/browse/HADOOP-13411) | Checkstyle suppression by annotation or comment | Minor | . | John Zhuge | John Zhuge | +| [HADOOP-13412](https://issues.apache.org/jira/browse/HADOOP-13412) | Move dev-support/checkstyle/suppressions.xml to hadoop-build-tools | Trivial | . | John Zhuge | John Zhuge | +| [HADOOP-13580](https://issues.apache.org/jira/browse/HADOOP-13580) | If user is unauthorized, log "unauthorized" instead of "Invalid signed text:" | Minor | security | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [HDFS-10823](https://issues.apache.org/jira/browse/HDFS-10823) | Implement HttpFSFileSystem#listStatusIterator | Major | httpfs | Andrew Wang | Andrew Wang | +| [HDFS-10489](https://issues.apache.org/jira/browse/HDFS-10489) | Deprecate dfs.encryption.key.provider.uri for HDFS encryption zones | Minor | . | Xiao Chen | Xiao Chen | +| [HDFS-10868](https://issues.apache.org/jira/browse/HDFS-10868) | Remove stray references to DFS\_HDFS\_BLOCKS\_METADATA\_ENABLED | Trivial | . | Andrew Wang | Andrew Wang | +| [YARN-5540](https://issues.apache.org/jira/browse/YARN-5540) | scheduler spends too much time looking at empty priorities | Major | capacity scheduler, fairscheduler, resourcemanager | Nathan Roberts | Jason Lowe | +| [HADOOP-13169](https://issues.apache.org/jira/browse/HADOOP-13169) | Randomize file list in SimpleCopyListing | Minor | tools/distcp | Rajesh Balamohan | Rajesh Balamohan | +| [HDFS-10875](https://issues.apache.org/jira/browse/HDFS-10875) | Optimize du -x to cache intermediate result | Major | snapshots | Xiao Chen | Xiao Chen | +| [YARN-4591](https://issues.apache.org/jira/browse/YARN-4591) | YARN Web UIs should provide a robots.txt | Trivial | . | Lars Francke | Sidharta Seethana | +| [MAPREDUCE-6632](https://issues.apache.org/jira/browse/MAPREDUCE-6632) | Master.getMasterAddress() should be updated to use YARN-4629 | Minor | applicationmaster | Daniel Templeton | Daniel Templeton | +| [YARN-5622](https://issues.apache.org/jira/browse/YARN-5622) | TestYarnCLI.testGetContainers fails due to mismatched date formats | Minor | . | Eric Badger | Eric Badger | +| [HDFS-10876](https://issues.apache.org/jira/browse/HDFS-10876) | Dispatcher#dispatch should log IOException stacktrace | Trivial | balancer & mover | Wei-Chiu Chuang | Manoj Govindassamy | +| [YARN-3692](https://issues.apache.org/jira/browse/YARN-3692) | Allow REST API to set a user generated message when killing an application | Major | . | Rajat Jain | Rohith Sharma K S | +| [HDFS-10869](https://issues.apache.org/jira/browse/HDFS-10869) | Remove the unused method InodeId#checkId() | Major | namenode | Jagadesh Kiran N | Jagadesh Kiran N | +| [YARN-3877](https://issues.apache.org/jira/browse/YARN-3877) | YarnClientImpl.submitApplication swallows exceptions | Minor | client | Steve Loughran | Varun Saxena | +| [HADOOP-13658](https://issues.apache.org/jira/browse/HADOOP-13658) | Replace config key literal strings with config key names I: hadoop common | Minor | conf | Chen Liang | Chen Liang | +| [YARN-5400](https://issues.apache.org/jira/browse/YARN-5400) | Light cleanup in ZKRMStateStore | Trivial | resourcemanager | Daniel Templeton | Daniel Templeton | +| [MAPREDUCE-6718](https://issues.apache.org/jira/browse/MAPREDUCE-6718) | add progress log to JHS during startup | Minor | jobhistoryserver | Haibo Chen | Haibo Chen | +| [HADOOP-13537](https://issues.apache.org/jira/browse/HADOOP-13537) | Support external calls in the RPC call queue | Major | ipc | Daryn Sharp | Daryn Sharp | +| [HDFS-10908](https://issues.apache.org/jira/browse/HDFS-10908) | Improve StripedBlockReader#createBlockReader error logging | Minor | erasure-coding | Wei-Chiu Chuang | Manoj Govindassamy | +| [HDFS-10910](https://issues.apache.org/jira/browse/HDFS-10910) | HDFS Erasure Coding doc should state its currently supported erasure coding policies | Major | documentation, erasure-coding | Wei-Chiu Chuang | Yiqun Lin | +| [HADOOP-13317](https://issues.apache.org/jira/browse/HADOOP-13317) | Add logs to KMS server-side to improve supportability | Minor | kms | Xiao Chen | Suraj Acharya | +| [HDFS-10940](https://issues.apache.org/jira/browse/HDFS-10940) | Reduce performance penalty of block caching when not used | Major | namenode | Daryn Sharp | Daryn Sharp | +| [MAPREDUCE-6638](https://issues.apache.org/jira/browse/MAPREDUCE-6638) | Do not attempt to recover progress from previous job attempts if spill encryption is enabled | Major | applicationmaster | Karthik Kambatla | Haibo Chen | +| [YARN-4855](https://issues.apache.org/jira/browse/YARN-4855) | Should check if node exists when replace nodelabels | Minor | . | Tao Jie | Tao Jie | +| [HDFS-10690](https://issues.apache.org/jira/browse/HDFS-10690) | Optimize insertion/removal of replica in ShortCircuitCache | Major | hdfs-client | Fenghua Hu | Fenghua Hu | +| [HADOOP-13685](https://issues.apache.org/jira/browse/HADOOP-13685) | Document -safely option of rm command. | Major | . | Xiaoyu Yao | Xiaoyu Yao | +| [HADOOP-13628](https://issues.apache.org/jira/browse/HADOOP-13628) | Support to retrieve specific property from configuration via REST API | Major | conf | Weiwei Yang | Weiwei Yang | +| [HDFS-10683](https://issues.apache.org/jira/browse/HDFS-10683) | Make class Token$PrivateToken private | Minor | . | John Zhuge | John Zhuge | +| [HDFS-10963](https://issues.apache.org/jira/browse/HDFS-10963) | Reduce log level when network topology cannot find enough datanodes. | Minor | . | Xiao Chen | Xiao Chen | +| [HADOOP-13323](https://issues.apache.org/jira/browse/HADOOP-13323) | Downgrade stack trace on FS load from Warn to debug | Minor | fs | Steve Loughran | Steve Loughran | +| [HADOOP-13688](https://issues.apache.org/jira/browse/HADOOP-13688) | Stop bundling HTML source code in javadoc JARs | Major | build | Andrew Wang | Andrew Wang | +| [HADOOP-13150](https://issues.apache.org/jira/browse/HADOOP-13150) | Avoid use of toString() in output of HDFS ACL shell commands. | Minor | . | Chris Nauroth | Chris Nauroth | +| [HADOOP-13689](https://issues.apache.org/jira/browse/HADOOP-13689) | Do not attach javadoc and sources jars during non-dist build | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-12579](https://issues.apache.org/jira/browse/HADOOP-12579) | Deprecate WriteableRPCEngine | Major | . | Haohui Mai | Wei Zhou | +| [HADOOP-13641](https://issues.apache.org/jira/browse/HADOOP-13641) | Update UGI#spawnAutoRenewalThreadForUserCreds to reduce indentation | Minor | . | Xiao Chen | Huafeng Wang | +| [YARN-5551](https://issues.apache.org/jira/browse/YARN-5551) | Ignore file backed pages from memory computation when smaps is enabled | Minor | . | Rajesh Balamohan | Rajesh Balamohan | +| [HDFS-10933](https://issues.apache.org/jira/browse/HDFS-10933) | Refactor TestFsck | Minor | . | Takanobu Asanuma | Takanobu Asanuma | +| [HADOOP-13684](https://issues.apache.org/jira/browse/HADOOP-13684) | Snappy may complain Hadoop is built without snappy if libhadoop is not found. | Minor | . | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [HADOOP-13705](https://issues.apache.org/jira/browse/HADOOP-13705) | Revert HADOOP-13534 Remove unused TrashPolicy#getInstance and initialize code | Major | . | Andrew Wang | Andrew Wang | +| [HADOOP-13698](https://issues.apache.org/jira/browse/HADOOP-13698) | Document caveat for KeyShell when underlying KeyProvider does not delete a key | Minor | documentation, kms | Xiao Chen | Xiao Chen | +| [HDFS-10789](https://issues.apache.org/jira/browse/HDFS-10789) | Route webhdfs through the RPC call queue | Major | ipc, webhdfs | Daryn Sharp | Daryn Sharp | +| [HDFS-10903](https://issues.apache.org/jira/browse/HDFS-10903) | Replace config key literal strings with config key names II: hadoop hdfs | Minor | . | Mingliang Liu | Chen Liang | +| [HADOOP-13710](https://issues.apache.org/jira/browse/HADOOP-13710) | Supress CachingGetSpaceUsed from logging interrupted exception stacktrace | Minor | fs | Wei-Chiu Chuang | Hanisha Koneru | +| [YARN-5599](https://issues.apache.org/jira/browse/YARN-5599) | Publish AM launch command to ATS | Major | . | Daniel Templeton | Rohith Sharma K S | +| [HDFS-11012](https://issues.apache.org/jira/browse/HDFS-11012) | Unnecessary INFO logging on DFSClients for InvalidToken | Minor | fs | Harsh J | Harsh J | +| [HDFS-11003](https://issues.apache.org/jira/browse/HDFS-11003) | Expose "XmitsInProgress" through DataNodeMXBean | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-13661](https://issues.apache.org/jira/browse/HADOOP-13661) | Upgrade HTrace version | Major | . | Sean Mackrory | Sean Mackrory | +| [HADOOP-13722](https://issues.apache.org/jira/browse/HADOOP-13722) | Code cleanup -- ViewFileSystem and InodeTree | Minor | viewfs | Manoj Govindassamy | Manoj Govindassamy | +| [HADOOP-13724](https://issues.apache.org/jira/browse/HADOOP-13724) | Fix a few typos in site markdown documents | Minor | documentation | Andrew Wang | Ding Fei | +| [YARN-5466](https://issues.apache.org/jira/browse/YARN-5466) | DefaultContainerExecutor needs JavaDocs | Minor | nodemanager | Daniel Templeton | Daniel Templeton | +| [HADOOP-13522](https://issues.apache.org/jira/browse/HADOOP-13522) | Add %A and %a formats for fs -stat command to print permissions | Major | fs | Alex Garbarini | Alex Garbarini | +| [HDFS-11009](https://issues.apache.org/jira/browse/HDFS-11009) | Add a tool to reconstruct block meta file from CLI | Major | datanode | Xiao Chen | Xiao Chen | +| [HDFS-9480](https://issues.apache.org/jira/browse/HDFS-9480) | Expose nonDfsUsed via StorageTypeStats | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-13737](https://issues.apache.org/jira/browse/HADOOP-13737) | Cleanup DiskChecker interface | Major | util | Arpit Agarwal | Arpit Agarwal | +| [HADOOP-13702](https://issues.apache.org/jira/browse/HADOOP-13702) | Add a new instrumented read-write lock | Major | common | Jingcheng Du | Jingcheng Du | +| [HADOOP-13732](https://issues.apache.org/jira/browse/HADOOP-13732) | Upgrade OWASP dependency-check plugin version | Minor | security | Mike Yoder | Mike Yoder | +| [HADOOP-12082](https://issues.apache.org/jira/browse/HADOOP-12082) | Support multiple authentication schemes via AuthenticationFilter | Major | security | Hrishikesh Gadre | Hrishikesh Gadre | +| [HADOOP-13669](https://issues.apache.org/jira/browse/HADOOP-13669) | KMS Server should log exceptions before throwing | Major | kms | Xiao Chen | Suraj Acharya | +| [MAPREDUCE-6792](https://issues.apache.org/jira/browse/MAPREDUCE-6792) | Allow user's full principal name as owner of MapReduce staging directory in JobSubmissionFiles#JobStagingDir() | Major | client | Santhosh G Nayak | Santhosh G Nayak | +| [HDFS-5684](https://issues.apache.org/jira/browse/HDFS-5684) | Annotate o.a.h.fs.viewfs.ViewFileSystem.MountPoint as VisibleForTesting | Minor | hdfs-client | Keith Turner | Manoj Govindassamy | +| [YARN-5575](https://issues.apache.org/jira/browse/YARN-5575) | Many classes use bare yarn. properties instead of the defined constants | Major | . | Daniel Templeton | Daniel Templeton | +| [HADOOP-13659](https://issues.apache.org/jira/browse/HADOOP-13659) | Upgrade jaxb-api version | Major | build | Sean Mackrory | Sean Mackrory | +| [HADOOP-13502](https://issues.apache.org/jira/browse/HADOOP-13502) | Split fs.contract.is-blobstore flag into more descriptive flags for use by contract tests. | Minor | test | Chris Nauroth | Chris Nauroth | +| [HADOOP-13017](https://issues.apache.org/jira/browse/HADOOP-13017) | Implementations of InputStream.read(buffer, offset, bytes) to exit 0 if bytes==0 | Major | io | Steve Loughran | Steve Loughran | +| [HDFS-11049](https://issues.apache.org/jira/browse/HDFS-11049) | The description of dfs.block.replicator.classname is not clear | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [HDFS-11069](https://issues.apache.org/jira/browse/HDFS-11069) | Tighten the authorization of datanode RPC | Major | datanode, security | Kihwal Lee | Kihwal Lee | +| [YARN-4456](https://issues.apache.org/jira/browse/YARN-4456) | Clean up Lint warnings in nodemanager | Minor | nodemanager | Daniel Templeton | Daniel Templeton | +| [HDFS-11055](https://issues.apache.org/jira/browse/HDFS-11055) | Update default-log4j.properties for httpfs to imporve test logging | Major | httpfs, test | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [YARN-4710](https://issues.apache.org/jira/browse/YARN-4710) | Reduce logging application reserved debug info in FSAppAttempt#assignContainer | Minor | fairscheduler | Yiqun Lin | Yiqun Lin | +| [YARN-4668](https://issues.apache.org/jira/browse/YARN-4668) | Reuse objectMapper instance in Yarn | Major | timelineclient | Yiqun Lin | Yiqun Lin | +| [HDFS-11064](https://issues.apache.org/jira/browse/HDFS-11064) | Mention the default NN rpc ports in hdfs-default.xml | Minor | documentation | Andrew Wang | Yiqun Lin | +| [HDFS-10926](https://issues.apache.org/jira/browse/HDFS-10926) | Update staled configuration properties related to erasure coding | Major | . | SammiChen | SammiChen | +| [YARN-4963](https://issues.apache.org/jira/browse/YARN-4963) | capacity scheduler: Make number of OFF\_SWITCH assignments per heartbeat configurable | Major | capacityscheduler | Nathan Roberts | Nathan Roberts | +| [HDFS-11047](https://issues.apache.org/jira/browse/HDFS-11047) | Remove deep copies of FinalizedReplica to alleviate heap consumption on DataNode | Major | datanode | Xiaobing Zhou | Xiaobing Zhou | +| [HADOOP-10075](https://issues.apache.org/jira/browse/HADOOP-10075) | Update jetty dependency to version 9 | Critical | . | Robert Rati | Robert Kanter | +| [MAPREDUCE-6799](https://issues.apache.org/jira/browse/MAPREDUCE-6799) | Document mapreduce.jobhistory.webapp.https.address in mapred-default.xml | Minor | documentation, jobhistoryserver | Akira Ajisaka | Yiqun Lin | +| [HDFS-11074](https://issues.apache.org/jira/browse/HDFS-11074) | Remove unused method FsDatasetSpi#getFinalizedBlocksOnPersistentStorage | Major | datanode | Arpit Agarwal | Hanisha Koneru | +| [YARN-4907](https://issues.apache.org/jira/browse/YARN-4907) | Make all MockRM#waitForState consistent. | Major | resourcemanager | Yufei Gu | Yufei Gu | +| [YARN-4396](https://issues.apache.org/jira/browse/YARN-4396) | Log the trace information on FSAppAttempt#assignContainer | Major | applications, fairscheduler | Yiqun Lin | Yiqun Lin | +| [MAPREDUCE-6795](https://issues.apache.org/jira/browse/MAPREDUCE-6795) | Update the document for JobConf#setNumReduceTasks | Major | documentation | Akira Ajisaka | Yiqun Lin | +| [HADOOP-13603](https://issues.apache.org/jira/browse/HADOOP-13603) | Ignore package line length checkstyle rule | Major | build | Shane Kumpf | Shane Kumpf | +| [HADOOP-13583](https://issues.apache.org/jira/browse/HADOOP-13583) | Incorporate checkcompatibility script which runs Java API Compliance Checker | Major | scripts | Andrew Wang | Andrew Wang | +| [HADOOP-13738](https://issues.apache.org/jira/browse/HADOOP-13738) | DiskChecker should perform some disk IO | Major | . | Arpit Agarwal | Arpit Agarwal | +| [HADOOP-13667](https://issues.apache.org/jira/browse/HADOOP-13667) | Fix typing mistake of inline document in hadoop-metrics2.properties | Major | documentation | Rui Gao | Rui Gao | +| [HDFS-10909](https://issues.apache.org/jira/browse/HDFS-10909) | De-duplicate code in ErasureCodingWorker#initializeStripedReadThreadPool and DFSClient#initThreadsNumForStripedReads | Minor | . | Wei-Chiu Chuang | Manoj Govindassamy | +| [HADOOP-13784](https://issues.apache.org/jira/browse/HADOOP-13784) | Output javadoc inside the target directory | Major | documentation | Andrew Wang | Andrew Wang | +| [HDFS-11080](https://issues.apache.org/jira/browse/HDFS-11080) | Update HttpFS to use ConfigRedactor | Major | . | Sean Mackrory | Sean Mackrory | +| [YARN-5697](https://issues.apache.org/jira/browse/YARN-5697) | Use CliParser to parse options in RMAdminCLI | Major | . | Tao Jie | Tao Jie | +| [HADOOP-12453](https://issues.apache.org/jira/browse/HADOOP-12453) | Support decoding KMS Delegation Token with its own Identifier | Major | kms, security | Xiaoyu Yao | Xiaoyu Yao | +| [HDFS-11088](https://issues.apache.org/jira/browse/HDFS-11088) | Quash unnecessary safemode WARN message during NameNode startup | Trivial | . | Andrew Wang | Yiqun Lin | +| [MAPREDUCE-6796](https://issues.apache.org/jira/browse/MAPREDUCE-6796) | Remove unused properties from JTConfig.java | Major | . | Akira Ajisaka | Haibo Chen | +| [YARN-4998](https://issues.apache.org/jira/browse/YARN-4998) | Minor cleanup to UGI use in AdminService | Trivial | resourcemanager | Daniel Templeton | Daniel Templeton | +| [HDFS-10756](https://issues.apache.org/jira/browse/HDFS-10756) | Expose getTrashRoot to HTTPFS and WebHDFS | Major | encryption, httpfs, webhdfs | Xiao Chen | Yuanbo Liu | +| [MAPREDUCE-6790](https://issues.apache.org/jira/browse/MAPREDUCE-6790) | Update jackson from 1.9.13 to 2.x in hadoop-mapreduce | Major | build | Akira Ajisaka | Akira Ajisaka | +| [YARN-5720](https://issues.apache.org/jira/browse/YARN-5720) | Update document for "rmadmin -replaceLabelOnNode" | Minor | . | Tao Jie | Tao Jie | +| [YARN-5356](https://issues.apache.org/jira/browse/YARN-5356) | NodeManager should communicate physical resource capability to ResourceManager | Major | nodemanager, resourcemanager | Nathan Roberts | Inigo Goiri | +| [HADOOP-13802](https://issues.apache.org/jira/browse/HADOOP-13802) | Make generic options help more consistent, and aligned | Minor | . | Grant Sohn | Grant Sohn | +| [HADOOP-13782](https://issues.apache.org/jira/browse/HADOOP-13782) | Make MutableRates metrics thread-local write, aggregate-on-read | Major | metrics | Erik Krogen | Erik Krogen | +| [HDFS-9482](https://issues.apache.org/jira/browse/HDFS-9482) | Replace DatanodeInfo constructors with a builder pattern | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-13800](https://issues.apache.org/jira/browse/HADOOP-13800) | Remove unused HADOOP\_AUDIT\_LOGGER from hadoop-env.sh | Minor | scripts | Akira Ajisaka | Yiqun Lin | +| [HADOOP-13590](https://issues.apache.org/jira/browse/HADOOP-13590) | Retry until TGT expires even if the UGI renewal thread encountered exception | Major | security | Xiao Chen | Xiao Chen | +| [HDFS-11120](https://issues.apache.org/jira/browse/HDFS-11120) | TestEncryptionZones should waitActive | Minor | test | Xiao Chen | John Zhuge | +| [HADOOP-13687](https://issues.apache.org/jira/browse/HADOOP-13687) | Provide a unified dependency artifact that transitively includes the cloud storage modules shipped with Hadoop. | Major | build | Chris Nauroth | Chris Nauroth | +| [HADOOP-13720](https://issues.apache.org/jira/browse/HADOOP-13720) | Add more info to the msgs printed in AbstractDelegationTokenSecretManager for better supportability | Trivial | common, security | Yongjun Zhang | Yongjun Zhang | +| [HADOOP-13037](https://issues.apache.org/jira/browse/HADOOP-13037) | Refactor Azure Data Lake Store as an independent FileSystem | Major | fs/adl | Shrikant Naidu | Vishwajeet Dusane | +| [YARN-5552](https://issues.apache.org/jira/browse/YARN-5552) | Add Builder methods for common yarn API records | Major | . | Arun Suresh | Tao Jie | +| [HDFS-10941](https://issues.apache.org/jira/browse/HDFS-10941) | Improve BlockManager#processMisReplicatesAsync log | Major | namenode | Xiaoyu Yao | Chen Liang | +| [YARN-4033](https://issues.apache.org/jira/browse/YARN-4033) | In FairScheduler, parent queues should also display queue status | Major | fairscheduler | Siqi Li | Siqi Li | +| [HADOOP-13810](https://issues.apache.org/jira/browse/HADOOP-13810) | Add a test to verify that Configuration handles &-encoded characters | Minor | test | Steve Loughran | Steve Loughran | +| [HADOOP-13427](https://issues.apache.org/jira/browse/HADOOP-13427) | Eliminate needless uses of FileSystem#{exists(), isFile(), isDirectory()} | Major | fs | Steve Loughran | Mingliang Liu | +| [YARN-5736](https://issues.apache.org/jira/browse/YARN-5736) | YARN container executor config does not handle white space | Trivial | nodemanager | Miklos Szegedi | Miklos Szegedi | +| [YARN-5375](https://issues.apache.org/jira/browse/YARN-5375) | invoke MockRM#drainEvents implicitly in MockRM methods to reduce test failures | Major | resourcemanager | sandflee | sandflee | +| [HDFS-11147](https://issues.apache.org/jira/browse/HDFS-11147) | Remove confusing log output in FsDatasetImpl#getInitialVolumeFailureInfos | Minor | datanode | Chen Liang | Chen Liang | +| [HADOOP-13742](https://issues.apache.org/jira/browse/HADOOP-13742) | Expose "NumOpenConnectionsPerUser" as a metric | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-13660](https://issues.apache.org/jira/browse/HADOOP-13660) | Upgrade commons-configuration version to 2.1 | Major | build | Sean Mackrory | Sean Mackrory | +| [HDFS-11117](https://issues.apache.org/jira/browse/HDFS-11117) | Refactor striped file tests to allow flexibly test erasure coding policy | Major | . | SammiChen | SammiChen | +| [HADOOP-13646](https://issues.apache.org/jira/browse/HADOOP-13646) | Remove outdated overview.html | Minor | . | Akira Ajisaka | Brahma Reddy Battula | +| [YARN-5722](https://issues.apache.org/jira/browse/YARN-5722) | FairScheduler hides group resolution exceptions when assigning queue | Major | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [HADOOP-13166](https://issues.apache.org/jira/browse/HADOOP-13166) | add getFileStatus("/") test to AbstractContractGetFileStatusTest | Minor | fs, test | Steve Loughran | Steve Loughran | +| [HADOOP-11552](https://issues.apache.org/jira/browse/HADOOP-11552) | Allow handoff on the server side for RPC requests | Major | ipc | Siddharth Seth | Siddharth Seth | +| [HADOOP-13605](https://issues.apache.org/jira/browse/HADOOP-13605) | Clean up FileSystem javadocs, logging; improve diagnostics on FS load | Major | fs | Steve Loughran | Steve Loughran | +| [HADOOP-13018](https://issues.apache.org/jira/browse/HADOOP-13018) | Make Kdiag check whether hadoop.token.files points to existent and valid files | Major | . | Ravi Prakash | Ravi Prakash | +| [HADOOP-11603](https://issues.apache.org/jira/browse/HADOOP-11603) | Metric Snapshot log can be changed #MetricsSystemImpl.java since all the services will be initialized | Minor | metrics | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-10776](https://issues.apache.org/jira/browse/HADOOP-10776) | Open up already widely-used APIs for delegation-token fetching & renewal to ecosystem projects | Blocker | . | Robert Joseph Evans | Vinod Kumar Vavilapalli | +| [HDFS-11175](https://issues.apache.org/jira/browse/HDFS-11175) | Document uppercase key names are not supported in TransparentEncryption.md | Minor | documentation | Yuanbo Liu | Yiqun Lin | +| [HADOOP-1381](https://issues.apache.org/jira/browse/HADOOP-1381) | The distance between sync blocks in SequenceFiles should be configurable | Major | io | Owen O'Malley | Harsh J | +| [HADOOP-13506](https://issues.apache.org/jira/browse/HADOOP-13506) | Redundant groupid warning in child projects | Minor | . | Kai Sasaki | Kai Sasaki | +| [YARN-5890](https://issues.apache.org/jira/browse/YARN-5890) | FairScheduler should log information about AM-resource-usage and max-AM-share for queues | Major | fairscheduler | Yufei Gu | Yufei Gu | +| [YARN-4997](https://issues.apache.org/jira/browse/YARN-4997) | Update fair scheduler to use pluggable auth provider | Major | fairscheduler | Daniel Templeton | Tao Jie | +| [HADOOP-13790](https://issues.apache.org/jira/browse/HADOOP-13790) | Make qbt script executable | Trivial | scripts | Andrew Wang | Andrew Wang | +| [HDFS-8674](https://issues.apache.org/jira/browse/HDFS-8674) | Improve performance of postponed block scans | Critical | namenode | Daryn Sharp | Daryn Sharp | +| [MAPREDUCE-6787](https://issues.apache.org/jira/browse/MAPREDUCE-6787) | Allow job\_conf.xml to be downloadable on the job overview page in JHS | Major | jobhistoryserver | Haibo Chen | Haibo Chen | +| [HDFS-10581](https://issues.apache.org/jira/browse/HDFS-10581) | Hide redundant table on NameNode WebUI when no nodes are decomissioning | Trivial | hdfs, ui | Weiwei Yang | Weiwei Yang | +| [HDFS-11211](https://issues.apache.org/jira/browse/HDFS-11211) | Add a time unit to the DataNode client trace format | Minor | datanode | Akira Ajisaka | Jagadesh Kiran N | +| [HADOOP-13827](https://issues.apache.org/jira/browse/HADOOP-13827) | Add reencryptEncryptedKey interface to KMS | Major | kms | Xiao Chen | Xiao Chen | +| [HDFS-10206](https://issues.apache.org/jira/browse/HDFS-10206) | Datanodes not sorted properly by distance when the reader isn't a datanode | Major | . | Ming Ma | Nanda kumar | +| [HDFS-11217](https://issues.apache.org/jira/browse/HDFS-11217) | Annotate NameNode and DataNode MXBean interfaces as Private/Stable | Major | . | Akira Ajisaka | Jagadesh Kiran N | +| [YARN-4457](https://issues.apache.org/jira/browse/YARN-4457) | Cleanup unchecked types for EventHandler | Major | . | Daniel Templeton | Daniel Templeton | +| [HADOOP-13900](https://issues.apache.org/jira/browse/HADOOP-13900) | Remove snapshot version of SDK dependency from Azure Data Lake Store File System | Major | fs/adl | Vishwajeet Dusane | Vishwajeet Dusane | +| [HDFS-10958](https://issues.apache.org/jira/browse/HDFS-10958) | Add instrumentation hooks around Datanode disk IO | Major | datanode | Xiaoyu Yao | Arpit Agarwal | +| [HDFS-11249](https://issues.apache.org/jira/browse/HDFS-11249) | Redundant toString() in DFSConfigKeys.java | Trivial | . | Akira Ajisaka | Jagadesh Kiran N | +| [YARN-5882](https://issues.apache.org/jira/browse/YARN-5882) | Test only changes from YARN-4126 | Major | . | Andrew Wang | Jian He | +| [HADOOP-13709](https://issues.apache.org/jira/browse/HADOOP-13709) | Ability to clean up subprocesses spawned by Shell when the process exits | Major | . | Eric Badger | Eric Badger | +| [HDFS-11262](https://issues.apache.org/jira/browse/HDFS-11262) | Remove unused variables in FSImage.java | Trivial | . | Akira Ajisaka | Jagadesh Kiran N | +| [HDFS-10930](https://issues.apache.org/jira/browse/HDFS-10930) | Refactor: Wrap Datanode IO related operations | Major | datanode | Xiaoyu Yao | Xiaoyu Yao | +| [HDFS-10959](https://issues.apache.org/jira/browse/HDFS-10959) | Adding per disk IO statistics and metrics in DataNode. | Major | datanode | Xiaoyu Yao | Xiaoyu Yao | +| [HDFS-10913](https://issues.apache.org/jira/browse/HDFS-10913) | Introduce fault injectors to simulate slow mirrors | Major | datanode, test | Xiaobing Zhou | Xiaobing Zhou | +| [HADOOP-13911](https://issues.apache.org/jira/browse/HADOOP-13911) | Remove TRUSTSTORE\_PASSWORD related scripts from KMS | Minor | kms | Xiao Chen | John Zhuge | +| [YARN-4994](https://issues.apache.org/jira/browse/YARN-4994) | Use MiniYARNCluster with try-with-resources in tests | Trivial | test | Andras Bokor | Andras Bokor | +| [HADOOP-13863](https://issues.apache.org/jira/browse/HADOOP-13863) | Azure: Add a new SAS key mode for WASB. | Major | fs/azure | Dushyanth | Dushyanth | +| [HDFS-10917](https://issues.apache.org/jira/browse/HDFS-10917) | Collect peer performance statistics on DataNode. | Major | datanode | Xiaobing Zhou | Xiaobing Zhou | +| [YARN-5969](https://issues.apache.org/jira/browse/YARN-5969) | FairShareComparator: Cache value of getResourceUsage for better performance | Major | fairscheduler | zhangshilong | zhangshilong | +| [HDFS-11275](https://issues.apache.org/jira/browse/HDFS-11275) | Check groupEntryIndex and throw a helpful exception on failures when removing ACL. | Major | namenode | Xiao Chen | Xiao Chen | +| [YARN-5709](https://issues.apache.org/jira/browse/YARN-5709) | Cleanup leader election configs and pluggability | Critical | resourcemanager | Karthik Kambatla | Karthik Kambatla | +| [HDFS-11279](https://issues.apache.org/jira/browse/HDFS-11279) | Cleanup unused DataNode#checkDiskErrorAsync() | Minor | . | Xiaoyu Yao | Hanisha Koneru | +| [HDFS-11156](https://issues.apache.org/jira/browse/HDFS-11156) | Add new op GETFILEBLOCKLOCATIONS to WebHDFS REST API | Major | webhdfs | Weiwei Yang | Weiwei Yang | +| [HDFS-9483](https://issues.apache.org/jira/browse/HDFS-9483) | Documentation does not cover use of "swebhdfs" as URL scheme for SSL-secured WebHDFS. | Major | documentation | Chris Nauroth | Surendra Singh Lilhore | +| [YARN-5991](https://issues.apache.org/jira/browse/YARN-5991) | Yarn Distributed Shell does not print throwable t to App Master When failed to start container | Minor | . | dashwang | Jim Frankola | +| [HDFS-11292](https://issues.apache.org/jira/browse/HDFS-11292) | log lastWrittenTxId etc info in logSyncAll | Major | hdfs | Yongjun Zhang | Yongjun Zhang | +| [HDFS-11273](https://issues.apache.org/jira/browse/HDFS-11273) | Move TransferFsImage#doGetUrl function to a Util class | Major | . | Hanisha Koneru | Hanisha Koneru | +| [YARN-6015](https://issues.apache.org/jira/browse/YARN-6015) | AsyncDispatcher thread name can be set to improved debugging | Major | . | Ajith S | Ajith S | +| [HADOOP-13953](https://issues.apache.org/jira/browse/HADOOP-13953) | Make FTPFileSystem's data connection mode and transfer mode configurable | Major | fs | Xiao Chen | Xiao Chen | +| [HDFS-11299](https://issues.apache.org/jira/browse/HDFS-11299) | Support multiple Datanode File IO hooks | Major | hdfs | Hanisha Koneru | Hanisha Koneru | +| [YARN-5849](https://issues.apache.org/jira/browse/YARN-5849) | Automatically create YARN control group for pre-mounted cgroups | Minor | . | Miklos Szegedi | Miklos Szegedi | +| [HDFS-11339](https://issues.apache.org/jira/browse/HDFS-11339) | Support File IO sampling for Datanode IO profiling hooks | Major | datanode | Hanisha Koneru | Hanisha Koneru | +| [HDFS-11274](https://issues.apache.org/jira/browse/HDFS-11274) | Datanode should only check the failed volume upon IO errors | Major | datanode | Xiaoyu Yao | Xiaoyu Yao | +| [MAPREDUCE-6819](https://issues.apache.org/jira/browse/MAPREDUCE-6819) | Replace UTF8 with Text in MRBench | Minor | test | Akira Ajisaka | Peter Bacsko | +| [HDFS-11306](https://issues.apache.org/jira/browse/HDFS-11306) | Print remaining edit logs from buffer if edit log can't be rolled. | Major | ha, namenode | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [HADOOP-13978](https://issues.apache.org/jira/browse/HADOOP-13978) | Update project release notes for 3.0.0-alpha2 | Major | documentation | Andrew Wang | Andrew Wang | +| [HADOOP-13955](https://issues.apache.org/jira/browse/HADOOP-13955) | Replace deprecated HttpServer2 and SSLFactory constants | Minor | . | John Zhuge | John Zhuge | +| [HADOOP-13496](https://issues.apache.org/jira/browse/HADOOP-13496) | Include file lengths in Mismatch in length error for distcp | Minor | . | Ted Yu | Ted Yu | +| [HADOOP-13999](https://issues.apache.org/jira/browse/HADOOP-13999) | Add -DskipShade maven profile to disable jar shading to reduce compile time | Minor | build | Arun Suresh | Arun Suresh | +| [YARN-6028](https://issues.apache.org/jira/browse/YARN-6028) | Add document for container metrics | Major | documentation, nodemanager | Weiwei Yang | Weiwei Yang | +| [MAPREDUCE-6728](https://issues.apache.org/jira/browse/MAPREDUCE-6728) | Give fetchers hint when ShuffleHandler rejects a shuffling connection | Major | mrv2 | Haibo Chen | Haibo Chen | + + +### BUG FIXES: + +| JIRA | Summary | Priority | Component | Reporter | Contributor | +|:---- |:---- | :--- |:---- |:---- |:---- | +| [MAPREDUCE-4784](https://issues.apache.org/jira/browse/MAPREDUCE-4784) | TestRecovery occasionally fails | Major | mrv2, test | Jason Lowe | Haibo Chen | +| [HDFS-10760](https://issues.apache.org/jira/browse/HDFS-10760) | DataXceiver#run() should not log InvalidToken exception as an error | Major | . | Pan Yuxuan | Pan Yuxuan | +| [HDFS-10729](https://issues.apache.org/jira/browse/HDFS-10729) | Improve log message for edit loading failures caused by FS limit checks. | Major | namenode | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [YARN-5221](https://issues.apache.org/jira/browse/YARN-5221) | Expose UpdateResourceRequest API to allow AM to request for change in container properties | Major | . | Arun Suresh | Arun Suresh | +| [HADOOP-13375](https://issues.apache.org/jira/browse/HADOOP-13375) | o.a.h.security.TestGroupsCaching.testBackgroundRefreshCounters seems flaky | Major | security, test | Mingliang Liu | Weiwei Yang | +| [HDFS-10820](https://issues.apache.org/jira/browse/HDFS-10820) | Reuse closeResponder to reset the response variable in DataStreamer#run | Minor | . | Yiqun Lin | Yiqun Lin | +| [YARN-5555](https://issues.apache.org/jira/browse/YARN-5555) | Scheduler UI: "% of Queue" is inaccurate if leaf queue is hierarchically nested. | Minor | . | Eric Payne | Eric Payne | +| [YARN-5549](https://issues.apache.org/jira/browse/YARN-5549) | AMLauncher#createAMContainerLaunchContext() should not log the command to be launched indiscriminately | Critical | resourcemanager | Daniel Templeton | Daniel Templeton | +| [HDFS-10835](https://issues.apache.org/jira/browse/HDFS-10835) | Fix typos in httpfs.sh | Trivial | httpfs | John Zhuge | John Zhuge | +| [HDFS-10841](https://issues.apache.org/jira/browse/HDFS-10841) | Remove duplicate or unused variable in appendFile() | Minor | . | Kihwal Lee | Kihwal Lee | +| [HADOOP-13558](https://issues.apache.org/jira/browse/HADOOP-13558) | UserGroupInformation created from a Subject incorrectly tries to renew the Kerberos ticket | Major | security | Alejandro Abdelnur | Xiao Chen | +| [HADOOP-13388](https://issues.apache.org/jira/browse/HADOOP-13388) | Clean up TestLocalFileSystemPermission | Trivial | fs | Andras Bokor | Andras Bokor | +| [HDFS-10844](https://issues.apache.org/jira/browse/HDFS-10844) | test\_libhdfs\_threaded\_hdfs\_static and test\_libhdfs\_zerocopy\_hdfs\_static are failing | Major | libhdfs | Akira Ajisaka | Akira Ajisaka | +| [HDFS-9038](https://issues.apache.org/jira/browse/HDFS-9038) | DFS reserved space is erroneously counted towards non-DFS used. | Major | datanode | Chris Nauroth | Brahma Reddy Battula | +| [MAPREDUCE-6628](https://issues.apache.org/jira/browse/MAPREDUCE-6628) | Potential memory leak in CryptoOutputStream | Major | security | Mariappan Asokan | Mariappan Asokan | +| [HDFS-10832](https://issues.apache.org/jira/browse/HDFS-10832) | Propagate ACL bit and isEncrypted bit in HttpFS FileStatus permissions | Critical | httpfs | Andrew Wang | Andrew Wang | +| [HDFS-9781](https://issues.apache.org/jira/browse/HDFS-9781) | FsDatasetImpl#getBlockReports can occasionally throw NullPointerException | Major | datanode | Wei-Chiu Chuang | Manoj Govindassamy | +| [HDFS-10830](https://issues.apache.org/jira/browse/HDFS-10830) | FsDatasetImpl#removeVolumes crashes with IllegalMonitorStateException when vol being removed is in use | Major | hdfs | Manoj Govindassamy | Arpit Agarwal | +| [HADOOP-13587](https://issues.apache.org/jira/browse/HADOOP-13587) | distcp.map.bandwidth.mb is overwritten even when -bandwidth flag isn't set | Minor | tools/distcp | Zoran Dimitrijevic | Zoran Dimitrijevic | +| [HDFS-10856](https://issues.apache.org/jira/browse/HDFS-10856) | Update the comment of BPServiceActor$Scheduler#scheduleNextBlockReport | Minor | documentation | Akira Ajisaka | Yiqun Lin | +| [YARN-5630](https://issues.apache.org/jira/browse/YARN-5630) | NM fails to start after downgrade from 2.8 to 2.7 | Blocker | nodemanager | Jason Lowe | Jason Lowe | +| [HADOOP-13616](https://issues.apache.org/jira/browse/HADOOP-13616) | Broken code snippet area in Hadoop Benchmarking | Minor | documentation | Kai Sasaki | Kai Sasaki | +| [HDFS-10862](https://issues.apache.org/jira/browse/HDFS-10862) | Typos in 4 log messages | Trivial | . | Mehran Hassani | Mehran Hassani | +| [YARN-5163](https://issues.apache.org/jira/browse/YARN-5163) | Migrate TestClientToAMTokens and TestClientRMTokens tests from the old RPC engine | Major | test | Arun Suresh | Wei Zhou | +| [YARN-4232](https://issues.apache.org/jira/browse/YARN-4232) | TopCLI console support for HA mode | Minor | . | Bibin A Chundatt | Bibin A Chundatt | +| [MAPREDUCE-6777](https://issues.apache.org/jira/browse/MAPREDUCE-6777) | Typos in 4 log messages | Trivial | . | Mehran Hassani | Mehran Hassani | +| [YARN-5642](https://issues.apache.org/jira/browse/YARN-5642) | Typos in 9 log messages | Trivial | . | Mehran Hassani | Mehran Hassani | +| [YARN-5657](https://issues.apache.org/jira/browse/YARN-5657) | Fix TestDefaultContainerExecutor | Major | test | Akira Ajisaka | Arun Suresh | +| [YARN-5577](https://issues.apache.org/jira/browse/YARN-5577) | [Atsv2] Document object passing in infofilters with an example | Major | timelinereader, timelineserver | Rohith Sharma K S | Rohith Sharma K S | +| [YARN-5655](https://issues.apache.org/jira/browse/YARN-5655) | TestContainerManagerSecurity#testNMTokens is asserting | Major | . | Jason Lowe | Robert Kanter | +| [HADOOP-13601](https://issues.apache.org/jira/browse/HADOOP-13601) | Fix typo in a log messages of AbstractDelegationTokenSecretManager | Trivial | . | Mehran Hassani | Mehran Hassani | +| [HDFS-10879](https://issues.apache.org/jira/browse/HDFS-10879) | TestEncryptionZonesWithKMS#testReadWrite fails intermittently | Major | . | Xiao Chen | Xiao Chen | +| [HADOOP-13602](https://issues.apache.org/jira/browse/HADOOP-13602) | Fix some warnings by findbugs in hadoop-maven-plugin | Major | . | Tsuyoshi Ozawa | Tsuyoshi Ozawa | +| [YARN-4973](https://issues.apache.org/jira/browse/YARN-4973) | YarnWebParams next.fresh.interval should be next.refresh.interval | Minor | webapp | Daniel Templeton | Daniel Templeton | +| [YARN-5539](https://issues.apache.org/jira/browse/YARN-5539) | TimelineClient failed to retry on "java.net.SocketTimeoutException: Read timed out" | Critical | yarn | Sumana Sathish | Junping Du | +| [HADOOP-13643](https://issues.apache.org/jira/browse/HADOOP-13643) | Math error in AbstractContractDistCpTest | Minor | . | Aaron Fabbri | Aaron Fabbri | +| [HDFS-10894](https://issues.apache.org/jira/browse/HDFS-10894) | Remove the redundant charactors for command -saveNamespace in HDFSCommands.md | Trivial | documentation | Yiqun Lin | Yiqun Lin | +| [HDFS-10886](https://issues.apache.org/jira/browse/HDFS-10886) | Replace "fs.default.name" with "fs.defaultFS" in viewfs document | Minor | documentation, federation | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-10843](https://issues.apache.org/jira/browse/HDFS-10843) | Update space quota when a UC block is completed rather than committed. | Major | hdfs, namenode | Erik Krogen | Erik Krogen | +| [HDFS-10866](https://issues.apache.org/jira/browse/HDFS-10866) | Fix Eclipse Java 8 compile errors related to generic parameters. | Major | . | Konstantin Shvachko | Konstantin Shvachko | +| [YARN-5664](https://issues.apache.org/jira/browse/YARN-5664) | Fix Yarn documentation to link to correct versions. | Minor | . | Xiao Chen | Xiao Chen | +| [YARN-5663](https://issues.apache.org/jira/browse/YARN-5663) | Small refactor in ZKRMStateStore | Minor | resourcemanager | Oleksii Dymytrov | Oleksii Dymytrov | +| [HADOOP-13638](https://issues.apache.org/jira/browse/HADOOP-13638) | KMS should set UGI's Configuration object properly | Major | kms | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [HDFS-9885](https://issues.apache.org/jira/browse/HDFS-9885) | Correct the distcp counters name while displaying counters | Minor | distcp | Archana T | Surendra Singh Lilhore | +| [YARN-5660](https://issues.apache.org/jira/browse/YARN-5660) | Wrong audit constants are used in Get/Put of priority in RMWebService | Trivial | resourcemanager | Rohith Sharma K S | Rohith Sharma K S | +| [HDFS-10889](https://issues.apache.org/jira/browse/HDFS-10889) | Remove outdated Fault Injection Framework documentaion | Major | documentation | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-10713](https://issues.apache.org/jira/browse/HDFS-10713) | Throttle FsNameSystem lock warnings | Major | logging, namenode | Arpit Agarwal | Hanisha Koneru | +| [HDFS-10426](https://issues.apache.org/jira/browse/HDFS-10426) | TestPendingInvalidateBlock failed in trunk | Major | test | Yiqun Lin | Yiqun Lin | +| [HDFS-10828](https://issues.apache.org/jira/browse/HDFS-10828) | Fix usage of FsDatasetImpl object lock in ReplicaMap | Blocker | . | Arpit Agarwal | Arpit Agarwal | +| [YARN-5631](https://issues.apache.org/jira/browse/YARN-5631) | Missing refreshClusterMaxPriority usage in rmadmin help message | Minor | . | Kai Sasaki | Kai Sasaki | +| [HDFS-10376](https://issues.apache.org/jira/browse/HDFS-10376) | Enhance setOwner testing | Major | . | Yongjun Zhang | John Zhuge | +| [HDFS-10915](https://issues.apache.org/jira/browse/HDFS-10915) | Fix time measurement bug in TestDatanodeRestart#testWaitForRegistrationOnRestart | Minor | test | Xiaobing Zhou | Xiaobing Zhou | +| [HDFS-9444](https://issues.apache.org/jira/browse/HDFS-9444) | Add utility to find set of available ephemeral ports to ServerSocketUtil | Major | . | Brahma Reddy Battula | Masatake Iwasaki | +| [YARN-5662](https://issues.apache.org/jira/browse/YARN-5662) | Provide an option to enable ContainerMonitor | Major | . | Jian He | Jian He | +| [HADOOP-11780](https://issues.apache.org/jira/browse/HADOOP-11780) | Prevent IPC reader thread death | Critical | ipc | Daryn Sharp | Daryn Sharp | +| [HDFS-10824](https://issues.apache.org/jira/browse/HDFS-10824) | MiniDFSCluster#storageCapacities has no effects on real capacity | Major | . | Xiaobing Zhou | Xiaobing Zhou | +| [HDFS-10914](https://issues.apache.org/jira/browse/HDFS-10914) | Move remnants of oah.hdfs.client to hadoop-hdfs-client | Critical | hdfs-client | Andrew Wang | Andrew Wang | +| [HADOOP-13164](https://issues.apache.org/jira/browse/HADOOP-13164) | Optimize S3AFileSystem::deleteUnnecessaryFakeDirectories | Minor | fs/s3 | Rajesh Balamohan | Rajesh Balamohan | +| [MAPREDUCE-6771](https://issues.apache.org/jira/browse/MAPREDUCE-6771) | RMContainerAllocator sends container diagnostics event after corresponding completion event | Major | mrv2 | Haibo Chen | Haibo Chen | +| [HADOOP-13640](https://issues.apache.org/jira/browse/HADOOP-13640) | Fix findbugs warning in VersionInfoMojo.java | Major | . | Tsuyoshi Ozawa | Yuanbo Liu | +| [HDFS-10850](https://issues.apache.org/jira/browse/HDFS-10850) | getEZForPath should NOT throw FNF | Blocker | hdfs | Daryn Sharp | Andrew Wang | +| [HADOOP-13671](https://issues.apache.org/jira/browse/HADOOP-13671) | Fix ClassFormatException in trunk build. | Major | build | Kihwal Lee | Kihwal Lee | +| [HDFS-10907](https://issues.apache.org/jira/browse/HDFS-10907) | Fix Erasure Coding documentation | Trivial | documentation, erasure-coding | Wei-Chiu Chuang | Manoj Govindassamy | +| [YARN-5693](https://issues.apache.org/jira/browse/YARN-5693) | Reduce loglevel to Debug in ContainerManagementProtocolProxy and AMRMClientImpl | Major | yarn | Yufei Gu | Yufei Gu | +| [YARN-5678](https://issues.apache.org/jira/browse/YARN-5678) | Log demand as demand in FSLeafQueue and FSParentQueue | Major | fairscheduler | Yufei Gu | Yufei Gu | +| [YARN-5672](https://issues.apache.org/jira/browse/YARN-5672) | FairScheduler: wrong queue name in log when adding application | Minor | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg | +| [YARN-4767](https://issues.apache.org/jira/browse/YARN-4767) | Network issues can cause persistent RM UI outage | Critical | webapp | Daniel Templeton | Daniel Templeton | +| [HDFS-10810](https://issues.apache.org/jira/browse/HDFS-10810) | Setreplication removing block from underconstrcution temporarily when batch IBR is enabled. | Major | namenode | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-10944](https://issues.apache.org/jira/browse/HDFS-10944) | Correct the javadoc of dfsadmin#disallowSnapshot | Minor | documentation | Jagadesh Kiran N | Jagadesh Kiran N | +| [HDFS-10947](https://issues.apache.org/jira/browse/HDFS-10947) | Correct the API name for truncate in webhdfs document | Major | documentation | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [HDFS-10878](https://issues.apache.org/jira/browse/HDFS-10878) | TestDFSClientRetries#testIdempotentAllocateBlockAndClose throws ConcurrentModificationException | Major | hdfs-client | Rushabh S Shah | Rushabh S Shah | +| [HADOOP-12667](https://issues.apache.org/jira/browse/HADOOP-12667) | s3a: Support createNonRecursive API | Major | fs/s3 | Sean Mackrory | Sean Mackrory | +| [HDFS-10609](https://issues.apache.org/jira/browse/HDFS-10609) | Uncaught InvalidEncryptionKeyException during pipeline recovery may abort downstream applications | Major | encryption | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [HDFS-10962](https://issues.apache.org/jira/browse/HDFS-10962) | TestRequestHedgingProxyProvider is flaky | Major | test | Andrew Wang | Andrew Wang | +| [MAPREDUCE-6789](https://issues.apache.org/jira/browse/MAPREDUCE-6789) | Fix TestAMWebApp failure | Major | test | Akira Ajisaka | Daniel Templeton | +| [MAPREDUCE-6740](https://issues.apache.org/jira/browse/MAPREDUCE-6740) | Enforce mapreduce.task.timeout to be at least mapreduce.task.progress-report.interval | Minor | mr-am | Haibo Chen | Haibo Chen | +| [HADOOP-13690](https://issues.apache.org/jira/browse/HADOOP-13690) | Fix typos in core-default.xml | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [YARN-5101](https://issues.apache.org/jira/browse/YARN-5101) | YARN\_APPLICATION\_UPDATED event is parsed in ApplicationHistoryManagerOnTimelineStore#convertToApplicationReport with reversed order | Major | . | Xuan Gong | Sunil G | +| [YARN-5659](https://issues.apache.org/jira/browse/YARN-5659) | getPathFromYarnURL should use standard methods | Major | . | Sergey Shelukhin | Sergey Shelukhin | +| [HADOOP-12611](https://issues.apache.org/jira/browse/HADOOP-12611) | TestZKSignerSecretProvider#testMultipleInit occasionally fail | Major | . | Wei-Chiu Chuang | Eric Badger | +| [HDFS-10969](https://issues.apache.org/jira/browse/HDFS-10969) | Fix typos in hdfs-default.xml | Minor | documentation | Yiqun Lin | Yiqun Lin | +| [HDFS-10797](https://issues.apache.org/jira/browse/HDFS-10797) | Disk usage summary of snapshots causes renamed blocks to get counted twice | Major | snapshots | Sean Mackrory | Sean Mackrory | +| [YARN-5057](https://issues.apache.org/jira/browse/YARN-5057) | resourcemanager.security.TestDelegationTokenRenewer fails in trunk | Major | . | Yongjun Zhang | Jason Lowe | +| [HADOOP-13697](https://issues.apache.org/jira/browse/HADOOP-13697) | LogLevel#main throws exception if no arguments provided | Major | . | Mingliang Liu | Mingliang Liu | +| [HDFS-10991](https://issues.apache.org/jira/browse/HDFS-10991) | Export hdfsTruncateFile symbol in libhdfs | Blocker | libhdfs | Surendra Singh Lilhore | Surendra Singh Lilhore | +| [HADOOP-13700](https://issues.apache.org/jira/browse/HADOOP-13700) | Remove unthrown IOException from TrashPolicy#initialize and #getInstance signatures | Critical | fs | Haibo Chen | Andrew Wang | +| [HDFS-11002](https://issues.apache.org/jira/browse/HDFS-11002) | Fix broken attr/getfattr/setfattr links in ExtendedAttributes.md | Major | documentation | Mingliang Liu | Mingliang Liu | +| [HDFS-11000](https://issues.apache.org/jira/browse/HDFS-11000) | webhdfs PUT does not work if requests are routed to call queue. | Major | . | Kihwal Lee | Kihwal Lee | +| [HDFS-10987](https://issues.apache.org/jira/browse/HDFS-10987) | Make Decommission less expensive when lot of blocks present. | Critical | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-13024](https://issues.apache.org/jira/browse/HADOOP-13024) | Distcp with -delete feature on raw data not implemented | Major | . | Mavin Martin | Mavin Martin | +| [HDFS-10986](https://issues.apache.org/jira/browse/HDFS-10986) | DFSAdmin should log detailed error message if any | Major | tools | Mingliang Liu | Mingliang Liu | +| [HADOOP-13723](https://issues.apache.org/jira/browse/HADOOP-13723) | AliyunOSSInputStream#read() should update read bytes stat correctly | Major | tools | Mingliang Liu | Mingliang Liu | +| [HDFS-10990](https://issues.apache.org/jira/browse/HDFS-10990) | TestPendingInvalidateBlock should wait for IBRs | Minor | . | Yiqun Lin | Yiqun Lin | +| [HDFS-10735](https://issues.apache.org/jira/browse/HDFS-10735) | Distcp using webhdfs on secure HA clusters fails with StandbyException | Major | webhdfs | Benoy Antony | Benoy Antony | +| [HDFS-10883](https://issues.apache.org/jira/browse/HDFS-10883) | `getTrashRoot`'s behavior is not consistent in DFS after enabling EZ. | Major | . | Yuanbo Liu | Yuanbo Liu | +| [HADOOP-13707](https://issues.apache.org/jira/browse/HADOOP-13707) | If kerberos is enabled while HTTP SPNEGO is not configured, some links cannot be accessed | Major | . | Yuanbo Liu | Yuanbo Liu | +| [HDFS-10301](https://issues.apache.org/jira/browse/HDFS-10301) | BlockReport retransmissions may lead to storages falsely being declared zombie if storage report processing happens out of order | Critical | namenode | Konstantin Shvachko | Vinitha Reddy Gankidi | +| [HDFS-10920](https://issues.apache.org/jira/browse/HDFS-10920) | TestStorageMover#testNoSpaceDisk is failing intermittently | Major | test | Rakesh R | Rakesh R | +| [YARN-5718](https://issues.apache.org/jira/browse/YARN-5718) | TimelineClient (and other places in YARN) shouldn't over-write HDFS client retry settings which could cause unexpected behavior | Major | resourcemanager, timelineclient | Junping Du | Junping Du | +| [YARN-5743](https://issues.apache.org/jira/browse/YARN-5743) | [Atsv2] Publish queue name and RMAppMetrics to ATS | Major | . | Rohith Sharma K S | Rohith Sharma K S | +| [HDFS-10960](https://issues.apache.org/jira/browse/HDFS-10960) | TestDataNodeHotSwapVolumes#testRemoveVolumeBeingWritten fails at disk error verification after volume remove | Minor | hdfs | Manoj Govindassamy | Manoj Govindassamy | +| [HDFS-10752](https://issues.apache.org/jira/browse/HDFS-10752) | Several log refactoring/improvement suggestion in HDFS | Major | . | Nemo Chen | Hanisha Koneru | +| [HDFS-11025](https://issues.apache.org/jira/browse/HDFS-11025) | TestDiskspaceQuotaUpdate fails in trunk due to Bind exception | Minor | . | Yiqun Lin | Yiqun Lin | +| [HDFS-10627](https://issues.apache.org/jira/browse/HDFS-10627) | Volume Scanner marks a block as "suspect" even if the exception is network-related | Major | hdfs | Rushabh S Shah | Rushabh S Shah | +| [HDFS-10699](https://issues.apache.org/jira/browse/HDFS-10699) | Log object instance get incorrectly in TestDFSAdmin | Minor | . | Yiqun Lin | Yiqun Lin | +| [HDFS-11018](https://issues.apache.org/jira/browse/HDFS-11018) | Incorrect check and message in FsDatasetImpl#invalidate | Major | datanode | Wei-Chiu Chuang | Yiqun Lin | +| [HADOOP-13236](https://issues.apache.org/jira/browse/HADOOP-13236) | truncate will fail when we use viewfilesystem | Major | . | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-10730](https://issues.apache.org/jira/browse/HDFS-10730) | Fix some failed tests due to BindException | Major | . | Yiqun Lin | Yiqun Lin | +| [YARN-5747](https://issues.apache.org/jira/browse/YARN-5747) | Application timeline metric aggregation in timeline v2 will lose last round aggregation when an application finishes | Major | timelineserver | Li Lu | Li Lu | +| [YARN-5679](https://issues.apache.org/jira/browse/YARN-5679) | TestAHSWebServices is failing | Major | timelineserver | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-13749](https://issues.apache.org/jira/browse/HADOOP-13749) | KMSClientProvider combined with KeyProviderCache can result in wrong UGI being used | Critical | . | Sergey Shelukhin | Xiaoyu Yao | +| [HDFS-11042](https://issues.apache.org/jira/browse/HDFS-11042) | Add missing cleanupSSLConfig() call for tests that use setupSSLConfig() | Major | test | Kuhu Shukla | Kuhu Shukla | +| [HADOOP-13626](https://issues.apache.org/jira/browse/HADOOP-13626) | Remove distcp dependency on FileStatus serialization | Major | tools/distcp | Chris Douglas | Chris Douglas | +| [HDFS-11046](https://issues.apache.org/jira/browse/HDFS-11046) | Duplicate '-' in the daemon log name | Major | logging | Akira Ajisaka | Akira Ajisaka | +| [YARN-5711](https://issues.apache.org/jira/browse/YARN-5711) | Propogate exceptions back to client when using hedging RM failover provider | Critical | applications, resourcemanager | Subru Krishnan | Subru Krishnan | +| [YARN-5754](https://issues.apache.org/jira/browse/YARN-5754) | Null check missing for earliest in FifoPolicy | Major | fairscheduler | Yufei Gu | Yufei Gu | +| [YARN-5777](https://issues.apache.org/jira/browse/YARN-5777) | TestLogsCLI#testFetchApplictionLogsAsAnotherUser fails | Major | test | Akira Ajisaka | Akira Ajisaka | +| [HDFS-11015](https://issues.apache.org/jira/browse/HDFS-11015) | Enforce timeout in balancer | Major | balancer & mover | Kihwal Lee | Kihwal Lee | +| [HDFS-11040](https://issues.apache.org/jira/browse/HDFS-11040) | Add documentation for HDFS-9820 distcp improvement | Major | distcp | Yongjun Zhang | Yongjun Zhang | +| [YARN-5677](https://issues.apache.org/jira/browse/YARN-5677) | RM should transition to standby when connection is lost for an extended period | Critical | resourcemanager | Daniel Templeton | Daniel Templeton | +| [HDFS-11054](https://issues.apache.org/jira/browse/HDFS-11054) | Suppress verbose log message in BlockPlacementPolicyDefault | Major | . | Arpit Agarwal | Chen Liang | +| [HDFS-10935](https://issues.apache.org/jira/browse/HDFS-10935) | TestFileChecksum fails in some cases | Major | . | Wei-Chiu Chuang | SammiChen | +| [YARN-5753](https://issues.apache.org/jira/browse/YARN-5753) | fix NPE in AMRMClientImpl.getMatchingRequests() | Major | yarn | Haibo Chen | Haibo Chen | +| [HDFS-11050](https://issues.apache.org/jira/browse/HDFS-11050) | Change log level to 'warn' when ssl initialization fails and defaults to DEFAULT\_TIMEOUT\_CONN\_CONFIGURATOR | Major | . | Kuhu Shukla | Kuhu Shukla | +| [HDFS-11053](https://issues.apache.org/jira/browse/HDFS-11053) | Unnecessary superuser check in versionRequest() | Major | namenode, security | Kihwal Lee | Kihwal Lee | +| [YARN-5433](https://issues.apache.org/jira/browse/YARN-5433) | Audit dependencies for Category-X | Blocker | timelineserver | Sean Busbey | Sangjin Lee | +| [HDFS-10921](https://issues.apache.org/jira/browse/HDFS-10921) | TestDiskspaceQuotaUpdate doesn't wait for NN to get out of safe mode | Major | . | Eric Badger | Eric Badger | +| [HADOOP-8299](https://issues.apache.org/jira/browse/HADOOP-8299) | ViewFileSystem link slash mount point crashes with IndexOutOfBoundsException | Major | viewfs | Eli Collins | Manoj Govindassamy | +| [HDFS-9929](https://issues.apache.org/jira/browse/HDFS-9929) | Duplicate keys in NAMENODE\_SPECIFIC\_KEYS | Minor | namenode | Akira Ajisaka | Akira Ajisaka | +| [YARN-5752](https://issues.apache.org/jira/browse/YARN-5752) | TestLocalResourcesTrackerImpl#testLocalResourceCache times out | Major | . | Eric Badger | Eric Badger | +| [YARN-5710](https://issues.apache.org/jira/browse/YARN-5710) | Fix inconsistent naming in class ResourceRequest | Trivial | yarn | Yufei Gu | Yufei Gu | +| [YARN-5686](https://issues.apache.org/jira/browse/YARN-5686) | DefaultContainerExecutor random working dir algorigthm skews results | Minor | . | Miklos Szegedi | Vrushali C | +| [HDFS-10769](https://issues.apache.org/jira/browse/HDFS-10769) | BlockIdManager.clear doesn't reset the counter for blockGroupIdGenerator | Minor | hdfs | Ewan Higgs | Yiqun Lin | +| [MAPREDUCE-6798](https://issues.apache.org/jira/browse/MAPREDUCE-6798) | Fix intermittent failure of TestJobHistoryParsing.testJobHistoryMethods() | Major | jobhistoryserver | Haibo Chen | Haibo Chen | +| [HDFS-8492](https://issues.apache.org/jira/browse/HDFS-8492) | DN should notify NN when client requests a missing block | Major | . | Daryn Sharp | Walter Su | +| [YARN-5757](https://issues.apache.org/jira/browse/YARN-5757) | RM REST API documentation is not up to date | Trivial | resourcemanager, yarn | Miklos Szegedi | Miklos Szegedi | +| [MAPREDUCE-6541](https://issues.apache.org/jira/browse/MAPREDUCE-6541) | Exclude scheduled reducer memory when calculating available mapper slots from headroom to avoid deadlock | Major | . | Wangda Tan | Varun Saxena | +| [YARN-3848](https://issues.apache.org/jira/browse/YARN-3848) | TestNodeLabelContainerAllocation is not timing out | Major | test | Jason Lowe | Varun Saxena | +| [YARN-5420](https://issues.apache.org/jira/browse/YARN-5420) | Delete org.apache.hadoop.yarn.server.resourcemanager.resource.Priority as its not necessary | Minor | resourcemanager | Sunil G | Sunil G | +| [HADOOP-13201](https://issues.apache.org/jira/browse/HADOOP-13201) | Print the directory paths when ViewFs denies the rename operation on internal dirs | Major | viewfs | Tianyin Xu | Rakesh R | +| [YARN-5172](https://issues.apache.org/jira/browse/YARN-5172) | Update yarn daemonlog documentation due to HADOOP-12847 | Trivial | documentation | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [YARN-4831](https://issues.apache.org/jira/browse/YARN-4831) | Recovered containers will be killed after NM stateful restart | Major | nodemanager | Siqi Li | Siqi Li | +| [YARN-4388](https://issues.apache.org/jira/browse/YARN-4388) | Cleanup "mapreduce.job.hdfs-servers" from yarn-default.xml | Minor | yarn | Junping Du | Junping Du | +| [YARN-5776](https://issues.apache.org/jira/browse/YARN-5776) | Checkstyle: MonitoringThread.Run method length is too long | Trivial | nodemanager | Miklos Szegedi | Miklos Szegedi | +| [YARN-3432](https://issues.apache.org/jira/browse/YARN-3432) | Cluster metrics have wrong Total Memory when there is reserved memory on CS | Major | capacityscheduler, resourcemanager | Thomas Graves | Brahma Reddy Battula | +| [HDFS-9500](https://issues.apache.org/jira/browse/HDFS-9500) | datanodesSoftwareVersions map may counting wrong when rolling upgrade | Major | . | Phil Yang | Erik Krogen | +| [MAPREDUCE-2631](https://issues.apache.org/jira/browse/MAPREDUCE-2631) | Potential resource leaks in BinaryProtocol$TeeOutputStream.java | Major | . | Ravi Teja Ch N V | Sunil G | +| [YARN-2306](https://issues.apache.org/jira/browse/YARN-2306) | Add test for leakage of reservation metrics in fair scheduler | Minor | fairscheduler | Hong Zhiguo | Hong Zhiguo | +| [YARN-4743](https://issues.apache.org/jira/browse/YARN-4743) | FairSharePolicy breaks TimSort assumption | Major | fairscheduler | Zephyr Guo | Zephyr Guo | +| [HADOOP-13763](https://issues.apache.org/jira/browse/HADOOP-13763) | KMS REST API Documentation Decrypt URL typo | Minor | documentation, kms | Jeffrey E Rodriguez | Jeffrey E Rodriguez | +| [YARN-5794](https://issues.apache.org/jira/browse/YARN-5794) | Fix the asflicense warnings | Major | . | Yiqun Lin | Yiqun Lin | +| [HADOOP-13770](https://issues.apache.org/jira/browse/HADOOP-13770) | Shell.checkIsBashSupported swallowed an interrupted exception | Blocker | util | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [YARN-5027](https://issues.apache.org/jira/browse/YARN-5027) | NM should clean up app log dirs after NM restart | Major | nodemanager | sandflee | sandflee | +| [YARN-5767](https://issues.apache.org/jira/browse/YARN-5767) | Fix the order that resources are cleaned up from the local Public/Private caches | Major | . | Chris Trezzo | Chris Trezzo | +| [HDFS-11061](https://issues.apache.org/jira/browse/HDFS-11061) | Update dfs -count -t command line help and documentation | Minor | documentation, fs | Wei-Chiu Chuang | Yiqun Lin | +| [YARN-5773](https://issues.apache.org/jira/browse/YARN-5773) | RM recovery too slow due to LeafQueue#activateApplication() | Critical | capacity scheduler, rolling upgrade | Bibin A Chundatt | Bibin A Chundatt | +| [YARN-5793](https://issues.apache.org/jira/browse/YARN-5793) | Trim configuration values in DockerLinuxContainerRuntime | Minor | nodemanager | Tianyin Xu | Tianyin Xu | +| [YARN-5800](https://issues.apache.org/jira/browse/YARN-5800) | Delete LinuxContainerExecutor comment from yarn-default.xml | Trivial | yarn | Daniel Templeton | Jan Hentschel | +| [YARN-5809](https://issues.apache.org/jira/browse/YARN-5809) | AsyncDispatcher possibly invokes multiple shutdown thread when handling exception | Major | . | Jian He | Jian He | +| [HADOOP-8500](https://issues.apache.org/jira/browse/HADOOP-8500) | Fix javadoc jars to not contain entire target directory | Minor | build | EJ Ciramella | Andrew Wang | +| [HDFS-10455](https://issues.apache.org/jira/browse/HDFS-10455) | Logging the username when deny the setOwner operation | Minor | namenode | Tianyin Xu | Rakesh R | +| [YARN-5805](https://issues.apache.org/jira/browse/YARN-5805) | Add isDebugEnabled check for debug logs in nodemanager | Minor | . | Bibin A Chundatt | Bibin A Chundatt | +| [YARN-5788](https://issues.apache.org/jira/browse/YARN-5788) | Apps not activiated and AM limit resource in UI and REST not updated after -replaceLabelsOnNode | Major | . | Bibin A Chundatt | Bibin A Chundatt | +| [YARN-5001](https://issues.apache.org/jira/browse/YARN-5001) | Aggregated Logs root directory is created with wrong group if nonexistent | Major | log-aggregation, nodemanager, security | Haibo Chen | Haibo Chen | +| [MAPREDUCE-6765](https://issues.apache.org/jira/browse/MAPREDUCE-6765) | MR should not schedule container requests in cases where reducer or mapper containers demand resource larger than the maximum supported | Minor | mr-am | Haibo Chen | Haibo Chen | +| [YARN-5815](https://issues.apache.org/jira/browse/YARN-5815) | Random failure of TestApplicationPriority.testOrderOfActivatingThePriorityApplicationOnRMRestart | Major | . | Bibin A Chundatt | Bibin A Chundatt | +| [HDFS-11095](https://issues.apache.org/jira/browse/HDFS-11095) | BlockManagerSafeMode should respect extension period default config value (30s) | Minor | namenode | Mingliang Liu | Mingliang Liu | +| [YARN-4862](https://issues.apache.org/jira/browse/YARN-4862) | Handle duplicate completed containers in RMNodeImpl | Major | resourcemanager | Rohith Sharma K S | Rohith Sharma K S | +| [HDFS-11097](https://issues.apache.org/jira/browse/HDFS-11097) | Fix the jenkins warning related to the deprecated method StorageReceivedDeletedBlocks | Major | . | Yiqun Lin | Yiqun Lin | +| [HADOOP-13787](https://issues.apache.org/jira/browse/HADOOP-13787) | Azure testGlobStatusThrowsExceptionForUnreadableDir fails | Minor | fs/azure | John Zhuge | John Zhuge | +| [HDFS-11098](https://issues.apache.org/jira/browse/HDFS-11098) | Datanode in tests cannot start in Windows after HDFS-10638 | Blocker | datanode | Vinayakumar B | Vinayakumar B | +| [YARN-5837](https://issues.apache.org/jira/browse/YARN-5837) | NPE when getting node status of a decommissioned node after an RM restart | Major | . | Robert Kanter | Robert Kanter | +| [HADOOP-13798](https://issues.apache.org/jira/browse/HADOOP-13798) | TestHadoopArchives times out | Major | test | Akira Ajisaka | Akira Ajisaka | +| [HADOOP-13797](https://issues.apache.org/jira/browse/HADOOP-13797) | Remove hardcoded absolute path for ls | Major | util | Christine Koppelt | Christine Koppelt | +| [HADOOP-13795](https://issues.apache.org/jira/browse/HADOOP-13795) | Skip testGlobStatusThrowsExceptionForUnreadableDir in TestFSMainOperationsSwift | Major | fs/swift, test | John Zhuge | John Zhuge | +| [HADOOP-13803](https://issues.apache.org/jira/browse/HADOOP-13803) | Revert HADOOP-13081 add the ability to create multiple UGIs/subjects from one kerberos login | Major | security | Andrew Wang | Chris Nauroth | +| [YARN-5847](https://issues.apache.org/jira/browse/YARN-5847) | Revert health check exit code check | Major | nodemanager | Allen Wittenauer | Allen Wittenauer | +| [HADOOP-13804](https://issues.apache.org/jira/browse/HADOOP-13804) | MutableStat mean loses accuracy if add(long, long) is used | Minor | metrics | Erik Krogen | Erik Krogen | +| [YARN-5377](https://issues.apache.org/jira/browse/YARN-5377) | Fix TestQueuingContainerManager.testKillMultipleOpportunisticContainers | Major | . | Rohith Sharma K S | Konstantinos Karanasos | +| [MAPREDUCE-6782](https://issues.apache.org/jira/browse/MAPREDUCE-6782) | JHS task page search based on each individual column not working | Major | jobhistoryserver | Bibin A Chundatt | Ajith S | +| [HADOOP-13789](https://issues.apache.org/jira/browse/HADOOP-13789) | Hadoop Common includes generated test protos in both jar and test-jar | Major | build, common | Sean Busbey | Sean Busbey | +| [YARN-5823](https://issues.apache.org/jira/browse/YARN-5823) | Update NMTokens in case of requests with only opportunistic containers | Blocker | . | Konstantinos Karanasos | Konstantinos Karanasos | +| [HADOOP-13346](https://issues.apache.org/jira/browse/HADOOP-13346) | DelegationTokenAuthenticationHandler writes via closed writer | Minor | security | Gregory Chanan | Hrishikesh Gadre | +| [YARN-5856](https://issues.apache.org/jira/browse/YARN-5856) | Unnecessary duplicate start container request sent to NM State store | Major | . | Varun Saxena | Varun Saxena | +| [YARN-5862](https://issues.apache.org/jira/browse/YARN-5862) | TestDiskFailures.testLocalDirsFailures failed | Major | . | Yufei Gu | Yufei Gu | +| [YARN-5453](https://issues.apache.org/jira/browse/YARN-5453) | FairScheduler#update may skip update demand resource of child queue/app if current demand reached maxResource | Major | fairscheduler | sandflee | sandflee | +| [YARN-5843](https://issues.apache.org/jira/browse/YARN-5843) | Incorrect documentation for timeline service entityType/events REST end points | Minor | . | Bibin A Chundatt | Bibin A Chundatt | +| [HDFS-9337](https://issues.apache.org/jira/browse/HDFS-9337) | Validate required params for WebHDFS requests | Major | . | Jagadesh Kiran N | Jagadesh Kiran N | +| [YARN-5834](https://issues.apache.org/jira/browse/YARN-5834) | TestNodeStatusUpdater.testNMRMConnectionConf compares nodemanager wait time to the incorrect value | Trivial | . | Miklos Szegedi | Chang Li | +| [HDFS-11128](https://issues.apache.org/jira/browse/HDFS-11128) | CreateEditsLog throws NullPointerException | Major | hdfs | Hanisha Koneru | Hanisha Koneru | +| [YARN-5868](https://issues.apache.org/jira/browse/YARN-5868) | Update npm to latest version in Dockerfile to avoid random failures of npm while run maven build | Major | yarn-ui-v2 | Sunil G | Sunil G | +| [YARN-5545](https://issues.apache.org/jira/browse/YARN-5545) | Fix issues related to Max App in capacity scheduler | Major | capacity scheduler | Bibin A Chundatt | Bibin A Chundatt | +| [HDFS-11129](https://issues.apache.org/jira/browse/HDFS-11129) | TestAppendSnapshotTruncate fails with bind exception | Major | test | Brahma Reddy Battula | Brahma Reddy Battula | +| [HADOOP-13813](https://issues.apache.org/jira/browse/HADOOP-13813) | TestDelegationTokenFetcher#testDelegationTokenWithoutRenewer is failing | Major | security, test | Mingliang Liu | Mingliang Liu | +| [HDFS-11135](https://issues.apache.org/jira/browse/HDFS-11135) | The tests in TestBalancer run fails due to NPE | Major | test | Yiqun Lin | Yiqun Lin | +| [HDFS-11056](https://issues.apache.org/jira/browse/HDFS-11056) | Concurrent append and read operations lead to checksum error | Major | datanode, httpfs | Wei-Chiu Chuang | Wei-Chiu Chuang | +| [MAPREDUCE-6797](https://issues.apache.org/jira/browse/MAPREDUCE-6797) | Job history server scans can become blocked on a single, slow entry | Critical | jobhistoryserver | Prabhu Joseph | Prabhu Joseph | +| [YARN-5874](https://issues.apache.org/jira/browse/YARN-5874) | RM -format-state-store and -remove-application-from-state-store commands fail with NPE | Critical | resourcemanager | Varun Saxena | Varun Saxena | +| [YARN-5873](https://issues.apache.org/jira/browse/YARN-5873) | RM crashes with NPE if generic application history is enabled | Critical | resourcemanager | Varun Saxena | Varun Saxena | +| [YARN-4355](https://issues.apache.org/jira/browse/YARN-4355) | NPE while processing localizer heartbeat | Major | nodemanager | Jason Lowe | Varun Saxena | +| [YARN-4218](https://issues.apache.org/jira/browse/YARN-4218) | Metric for resource\*time that was preempted | Major | resourcemanager | Chang Li | Chang Li | +| [YARN-5875](https://issues.apache.org/jira/browse/YARN-5875) | TestTokenClientRMService#testTokenRenewalWrongUser fails | Major | . | Varun Saxena | Gergely Novák | +| [HADOOP-13815](https://issues.apache.org/jira/browse/HADOOP-13815) | TestKMS#testDelegationTokensOpsSimple and TestKMS#testDelegationTokensOpsKerberized Fails in Trunk | Major | test | Brahma Reddy Battula | Xiao Chen | +| [YARN-5765](https://issues.apache.org/jira/browse/YARN-5765) | Revert CHMOD on the new dirs created-LinuxContainerExecutor creates appcache and its subdirectories with wrong group owner. | Blocker | . | Haibo Chen | Naganarasimha G R | +| [MAPREDUCE-6811](https://issues.apache.org/jira/browse/MAPREDUCE-6811) | TestPipeApplication#testSubmitter fails after HADOOP-13802 | Major | test | Brahma Reddy Battula | Brahma Reddy Battula | +| [YARN-5891](https://issues.apache.org/jira/browse/YARN-5891) | yarn rmadmin -help contains a misspelled ResourceManager | Trivial | resourcemanager | Grant Sohn | Grant Sohn | +| [YARN-5836](https://issues.apache.org/jira/browse/YARN-5836) | Malicious AM can kill containers of other apps running in any node its containers are running | Minor | nodemanager | Botong Huang | Botong Huang | +| [YARN-5870](https://issues.apache.org/jira/browse/YARN-5870) | Expose getApplications API in YarnClient with GetApplicationsRequest parameter | Major | client | Gour Saha | Jian He | +| [HDFS-11134](https://issues.apache.org/jira/browse/HDFS-11134) | Fix bind exception threw in TestRenameWhileOpen | Major | . | Yiqun Lin | Yiqun Lin | +| [YARN-3538](https://issues.apache.org/jira/browse/YARN-3538) | TimelineServer doesn't catch/translate all exceptions raised | Minor | timelineserver | Steve Loughran | Steve Loughran | +| [YARN-5904](https://issues.apache.org/jira/browse/YARN-5904) | Reduce the number of default server threads for AMRMProxyService | Minor | nodemanager | Subru Krishnan | Subru Krishnan | +| [YARN-5271](https://issues.apache.org/jira/browse/YARN-5271) | ATS client doesn't work with Jersey 2 on the classpath | Major | client, timelineserver | Steve Loughran | Weiwei Yang | +| [MAPREDUCE-6801](https://issues.apache.org/jira/browse/MAPREDUCE-6801) | Fix flaky TestKill.testKillJob() | Major | mrv2 | Haibo Chen | Haibo Chen | +| [HADOOP-13814](https://issues.apache.org/jira/browse/HADOOP-13814) | Sample configuration of KMS HTTP Authentication signature is misleading | Minor | conf, documentation, kms | Masahiro Tanaka | Masahiro Tanaka | +| [HDFS-11144](https://issues.apache.org/jira/browse/HDFS-11144) | TestFileCreationDelete#testFileCreationDeleteParent fails wind bind exception | Major | test | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-11101](https://issues.apache.org/jira/browse/HDFS-11101) | TestDFSShell#testMoveWithTargetPortEmpty fails intermittently | Major | test | Brahma Reddy Battula | Brahma Reddy Battula | +| [YARN-5859](https://issues.apache.org/jira/browse/YARN-5859) | TestResourceLocalizationService#testParallelDownloadAttemptsForPublicResource sometimes fails | Major | test | Jason Lowe | Eric Badger | +| [MAPREDUCE-6793](https://issues.apache.org/jira/browse/MAPREDUCE-6793) | io.sort.factor code default and mapred-default.xml values inconsistent | Trivial | task | Gera Shegalov | Prabhu Joseph | +| [HDFS-10966](https://issues.apache.org/jira/browse/HDFS-10966) | Enhance Dispatcher logic on deciding when to give up a source DataNode | Major | balancer & mover | Zhe Zhang | Mark Wagner | +| [HADOOP-13663](https://issues.apache.org/jira/browse/HADOOP-13663) | Index out of range in SysInfoWindows | Major | scripts | Inigo Goiri | Inigo Goiri | +| [YARN-5911](https://issues.apache.org/jira/browse/YARN-5911) | DrainDispatcher does not drain all events on stop even if setDrainEventsOnStop is true | Major | . | Varun Saxena | Varun Saxena | +| [YARN-5918](https://issues.apache.org/jira/browse/YARN-5918) | Handle Opportunistic scheduling allocate request failure when NM is lost | Major | . | Bibin A Chundatt | Bibin A Chundatt | +| [HADOOP-13766](https://issues.apache.org/jira/browse/HADOOP-13766) | Fix a typo in the comments of RPC.getProtocolVersion | Trivial | common | Ethan Li | Ethan Li | +| [YARN-5920](https://issues.apache.org/jira/browse/YARN-5920) | Fix deadlock in TestRMHA.testTransitionedToStandbyShouldNotHang | Major | test | Rohith Sharma K S | Varun Saxena | +| [HADOOP-13833](https://issues.apache.org/jira/browse/HADOOP-13833) | TestSymlinkHdfsFileSystem#testCreateLinkUsingPartQualPath2 fails after HADOOP13605 | Critical | test | Brahma Reddy Battula | Brahma Reddy Battula | +| [HDFS-11174](https://issues.apache.org/jira/browse/HDFS-11174) | Wrong HttpFS test command in doc | Minor | documentation, httpfs | John Zhuge | John Zhuge | +| [HADOOP-13820](https://issues.apache.org/jira/browse/HADOOP-13820) | Replace ugi.getUsername() with ugi.getShortUserName() in viewFS | Minor | viewfs | Archana T | Brahma Reddy Battula | +| [YARN-5572](https://issues.apache.org/jira/browse/YARN-5572) | HBaseTimelineWriterImpl appears to reference a bad property name | Major | . | Daniel Templeton | Varun Saxena | +| [HADOOP-13816](https://issues.apache.org/jira/browse/HADOOP-13816) | Ambiguous plugin version warning from maven build. | Minor | . | Kai Sasaki | Kai Sasaki | +| [HADOOP-13838](https://issues.apache.org/jira/browse/HADOOP-13838) | KMSTokenRenewer should close providers | Critical | kms | Xiao Chen | Xiao Chen | +| [YARN-5725](https://issues.apache.org/jira/browse/YARN-5725) | Test uncaught exception in TestContainersMonitorResourceChange.testContainersResourceChange when setting IP and host | Minor | nodemanager | Miklos Szegedi | Miklos Szegedi | +| [YARN-5851](https://issues.apache.org/jira/browse/YARN-5851) | TestContainerManagerSecurity testContainerManager[1] failed | Major | nodemanager | Haibo Chen | Haibo Chen | +| [MAPREDUCE-6565](https://issues.apache.org/jira/browse/MAPREDUCE-6565) | Configuration to use host name in delegation token service is not read from job.xml during MapReduce job execution. | Major | . | Chris Nauroth | Li Lu | +| [YARN-5942](https://issues.apache.org/jira/browse/YARN-5942) | "Overridden" is misspelled as "overriden" in FairScheduler.md | Trivial | site | Daniel Templeton | Heather Sutherland | +| [HADOOP-13830](https://issues.apache.org/jira/browse/HADOOP-13830) | Intermittent failure of ITestS3NContractRootDir#testRecursiveRootListing: "Can not create a Path from an empty string" | Minor | fs/s3, test | Steve Loughran | Steve Loughran | +| [HDFS-11132](https://issues.apache.org/jira/browse/HDFS-11132) | Allow AccessControlException in contract tests w
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