| HDFS-13983 | TestOfflineImageViewer crashes in windows | Major | . | Vinayakumar B | Vinayakumar B | 
| YARN-9744 | RollingLevelDBTimelineStore.getEntityByTime fails with NPE | Major | timelineserver | Prabhu Joseph | Prabhu Joseph | 
| HDFS-15113 | Missing IBR when NameNode restart if open processCommand async feature | Blocker | datanode | Xiaoqiao He | Xiaoqiao He | 
| HADOOP-16985 | Handle release package related issues | Major | . | Vinayakumar B | Vinayakumar B | 
| HADOOP-17116 | Skip Retry INFO logging on first failover from a proxy | Major | ha | Hanisha Koneru | Hanisha Koneru | 
| HDFS-15651 | Client could not obtain block when DN CommandProcessingThread exit | Major | . | Yiqun Lin | Mingxiang Li | 
| HDFS-15963 | Unreleased volume references cause an infinite loop | Critical | datanode | Shuyan Zhang | Shuyan Zhang | 
| HDFS-14575 | LeaseRenewer#daemon threads leak in DFSClient | Major | . | Tao Yang | Renukaprasad C | 
| HADOOP-17796 | Upgrade jetty version to 9.4.43 | Major | . | Wei-Chiu Chuang | Renukaprasad C | 
| HDFS-15175 | Multiple CloseOp shared block instance causes the standby namenode to crash when rolling editlog | Critical | . | Yicong Cai | Wan Chang | 
| HDFS-16177 | Bug fix for Util#receiveFile | Minor | . | Tao Li | Tao Li | 
| YARN-10814 | YARN shouldn’t start with empty hadoop.http.authentication.signature.secret.file | Major | . | Benjamin Teke | Tamas Domok | 
| HADOOP-17874 | ExceptionsHandler to add terse/suppressed Exceptions in thread-safe manner | Major | . | Viraj Jasani | Viraj Jasani | 
| HADOOP-15129 | Datanode caches namenode DNS lookup failure and cannot startup | Minor | ipc | Karthik Palaniappan | Chris Nauroth | 
| YARN-10901 | Permission checking error on an existing directory in LogAggregationFileController#verifyAndCreateRemoteLogDir | Major | nodemanager | Tamas Domok | Tamas Domok | 
| HDFS-16207 | Remove NN logs stack trace for non-existent xattr query | Major | namenode | Ahmed Hussein | Ahmed Hussein | 
| HDFS-16187 | SnapshotDiff behaviour with Xattrs and Acls is not consistent across NN restarts with checkpointing | Major | snapshots | Srinivasu Majeti | Shashikant Banerjee | 
| HDFS-16198 | Short circuit read leaks Slot objects when InvalidToken exception is thrown | Major | . | Eungsop Yoo | Eungsop Yoo | 
| YARN-10870 | Missing user filtering check -> yarn.webapp.filter-entity-list-by-user for RM Scheduler page | Major | yarn | Siddharth Ahuja | Gergely Pollák | 
| HADOOP-17919 | Fix command line example in Hadoop Cluster Setup documentation | Minor | documentation | Rintaro Ikeda | Rintaro Ikeda | 
| HDFS-16235 | Deadlock in LeaseRenewer for static remove method | Major | hdfs | angerszhu | angerszhu | 
| HDFS-16181 | [SBN Read] Fix metric of RpcRequestCacheMissAmount can’t display when tailEditLog form JN | Critical | . | wangzhaohui | wangzhaohui | 
| HADOOP-17925 | BUILDING.txt should not encourage to activate docs profile on building binary artifacts | Minor | documentation | Rintaro Ikeda | Masatake Iwasaki | 
| HADOOP-16532 | Fix TestViewFsTrash to use the correct homeDir. | Minor | test, viewfs | Steve Loughran | Xing Lin | 
| HDFS-16268 | Balancer stuck when moving striped blocks due to NPE | Major | balancer & mover, erasure-coding | Leon Gao | Leon Gao | 
| HDFS-7612 | TestOfflineEditsViewer.testStored() uses incorrect default value for cacheDir | Major | test | Konstantin Shvachko | Michael Kuchenbecker | 
| HDFS-16311 | Metric metadataOperationRate calculation error in DataNodeVolumeMetrics | Major | . | Tao Li | Tao Li | 
| HDFS-16182 | numOfReplicas is given the wrong value in  BlockPlacementPolicyDefault$chooseTarget can cause DataStreamer to fail with Heterogeneous Storage | Major | namanode | Max  Xie | Max  Xie | 
| HADOOP-17999 | No-op implementation of setWriteChecksum and setVerifyChecksum in ViewFileSystem | Major | . | Abhishek Das | Abhishek Das | 
| HDFS-16329 | Fix log format for BlockManager | Minor | . | Tao Li | Tao Li | 
| HDFS-16330 | Fix incorrect placeholder for Exception logs in DiskBalancer | Major | . | Viraj Jasani | Viraj Jasani | 
| HDFS-16328 | Correct disk balancer param desc | Minor | documentation, hdfs | guophilipse | guophilipse | 
| HDFS-16343 | Add some debug logs when the dfsUsed are not used during Datanode startup | Major | datanode | Mukul Kumar Singh | Mukul Kumar Singh | 
| YARN-10991 | Fix to ignore the grouping “[]” for resourcesStr in parseResourcesString method | Minor | distributed-shell | Ashutosh Gupta | Ashutosh Gupta | 
| HADOOP-17975 | Fallback to simple auth does not work for a secondary DistributedFileSystem instance | Major | ipc | István Fajth | István Fajth | 
| HDFS-16350 | Datanode start time should be set after RPC server starts successfully | Minor | . | Viraj Jasani | Viraj Jasani | 
| YARN-11007 | Correct words in YARN documents | Minor | documentation | guophilipse | guophilipse | 
| HDFS-16332 | Expired block token causes slow read due to missing handling in sasl handshake | Major | datanode, dfs, dfsclient | Shinya Yoshida | Shinya Yoshida | 
| YARN-9063 | ATS 1.5 fails to start if RollingLevelDb files are corrupt or missing | Major | timelineserver, timelineservice | Tarun Parimi | Ashutosh Gupta | 
| HDFS-16333 | fix balancer bug when transfer an EC block | Major | balancer & mover, erasure-coding | qinyuren | qinyuren | 
| HDFS-16373 | Fix MiniDFSCluster restart in case of multiple namenodes | Major | . | Ayush Saxena | Ayush Saxena | 
| HDFS-16377 | Should CheckNotNull before access FsDatasetSpi | Major | . | Tao Li | Tao Li | 
| YARN-6862 | Nodemanager resource usage metrics sometimes are negative | Major | nodemanager | YunFan Zhou | Benjamin Teke | 
| YARN-10178 | Global Scheduler async thread crash caused by ’Comparison method violates its general contract | Major | capacity scheduler | tuyu | Andras Gyori | 
| HDFS-16395 | Remove useless NNThroughputBenchmark#dummyActionNoSynch() | Major | benchmarks, namenode | JiangHua Zhu | JiangHua Zhu | 
| HADOOP-18063 | Remove unused import AbstractJavaKeyStoreProvider in Shell class | Minor | . | JiangHua Zhu | JiangHua Zhu | 
| HDFS-16409 | Fix typo: testHasExeceptionsReturnsCorrectValue -> testHasExceptionsReturnsCorrectValue | Trivial | . | Ashutosh Gupta | Ashutosh Gupta | 
| HDFS-16408 | Ensure LeaseRecheckIntervalMs is greater than zero | Major | namenode | Jingxuan Fu | Jingxuan Fu | 
| YARN-11055 | In cgroups-operations.c some fprintf format strings don’t end with “\n” | Minor | nodemanager | Gera Shegalov | Gera Shegalov | 
| HDFS-16303 | Losing over 100 datanodes in state decommissioning results in full blockage of all datanode decommissioning | Major | . | Kevin Wikant | Kevin Wikant | 
| HDFS-16443 | Fix edge case where DatanodeAdminDefaultMonitor doubly enqueues a DatanodeDescriptor on exception | Major | hdfs | Kevin Wikant | Kevin Wikant | 
| HDFS-16449 | Fix hadoop web site release notes and changelog not available | Minor | documentation | guophilipse | guophilipse | 
| HADOOP-18192 | Fix multiple_bindings warning about slf4j-reload4j | Major | . | Masatake Iwasaki | Masatake Iwasaki | 
| HDFS-16479 | EC: NameNode should not send a reconstruction work when the source datanodes are insufficient | Critical | ec, erasure-coding | Yuanbo Liu | Takanobu Asanuma | 
| HDFS-16509 | Fix decommission UnsupportedOperationException: Remove unsupported | Major | namenode | daimin | daimin | 
| HDFS-16456 | EC: Decommission a rack with only on dn will fail when the rack number is equal with replication | Critical | ec, namenode | caozhiqiang | caozhiqiang | 
| HDFS-16437 | ReverseXML processor doesn’t accept XML files without the SnapshotDiffSection. | Critical | hdfs | yanbin.zhang | yanbin.zhang | 
| HDFS-16507 | [SBN read] Avoid purging edit log which is in progress | Critical | . | Tao Li | Tao Li | 
| YARN-10720 | YARN WebAppProxyServlet should support connection timeout to prevent proxy server from hanging | Critical | . | Qi Zhu | Qi Zhu | 
| HDFS-16428 | Source path with storagePolicy cause wrong typeConsumed while rename | Major | hdfs, namenode | lei w | lei w | 
| YARN-11014 | YARN incorrectly validates maximum capacity resources on the validation API | Major | . | Benjamin Teke | Benjamin Teke | 
| YARN-11075 | Explicitly declare serialVersionUID in LogMutation class | Major | . | Benjamin Teke | Benjamin Teke | 
| HDFS-11041 | Unable to unregister FsDatasetState MBean if DataNode is shutdown twice | Trivial | datanode | Wei-Chiu Chuang | Wei-Chiu Chuang | 
| HDFS-16538 | EC decoding failed due to not enough valid inputs | Major | erasure-coding | qinyuren | qinyuren | 
| HDFS-16544 | EC decoding failed due to invalid buffer | Major | erasure-coding | qinyuren | qinyuren | 
| HDFS-16546 | Fix UT TestOfflineImageViewer#testReverseXmlWithoutSnapshotDiffSection to branch branch-3.2 | Major | test | daimin | daimin | 
| HDFS-16552 | Fix NPE for TestBlockManager | Major | . | Tao Li | Tao Li | 
| MAPREDUCE-7246 | In MapredAppMasterRest#Mapreduce_Application_Master_Info_API, the datatype of appId should be “string”. | Major | documentation | jenny | Ashutosh Gupta | 
| YARN-10187 | Removing hadoop-yarn-project/hadoop-yarn/README as it is no longer maintained. | Minor | documentation | N Sanketh Reddy | Ashutosh Gupta | 
| HDFS-16185 | Fix comment in LowRedundancyBlocks.java | Minor | documentation | Akira Ajisaka | Ashutosh Gupta | 
| HADOOP-17479 | Fix the examples of hadoop config prefix | Minor | documentation | Akira Ajisaka | Ashutosh Gupta | 
| HDFS-16579 | Fix build failure for TestBlockManager on branch-3.2 | Major | . | Tao Li | Tao Li | 
| YARN-11092 | Upgrade jquery ui to 1.13.1 | Major | . | D M Murali Krishna Reddy | Ashutosh Gupta | 
| YARN-11133 | YarnClient gets the wrong EffectiveMinCapacity value | Major | api | Zilong Zhu | Zilong Zhu | 
| YARN-10850 | TimelineService v2 lists containers for all attempts when filtering for one | Major | timelinereader | Benjamin Teke | Benjamin Teke | 
| YARN-11126 | ZKConfigurationStore Java deserialisation vulnerability | Major | yarn | Tamas Domok | Tamas Domok | 
| YARN-11162 | Set the zk acl for nodes created by ZKConfigurationStore. | Major | resourcemanager | Owen O’Malley | Owen O’Malley | 
| HDFS-16586 | Purge FsDatasetAsyncDiskService threadgroup; it causes BPServiceActor$CommandProcessingThread IllegalThreadStateException ‘fatal exception and exit’ | Major | datanode | Michael Stack | Michael Stack | 
| HADOOP-18251 | Fix failure of extracting JIRA id from commit message in git_jira_fix_version_check.py | Minor | build | Masatake Iwasaki | Masatake Iwasaki | 
| HDFS-16583 | DatanodeAdminDefaultMonitor can get stuck in an infinite loop | Major | . | Stephen O’Donnell | Stephen O’Donnell | 
| HDFS-16623 | IllegalArgumentException in LifelineSender | Major | . | ZanderXu | ZanderXu | 
| HDFS-16064 | Determine when to invalidate corrupt replicas based on number of usable replicas | Major | datanode, namenode | Kevin Wikant | Kevin Wikant | 
| HADOOP-18100 | Change scope of inner classes in InodeTree to make them accessible outside package | Major | . | Abhishek Das | Abhishek Das | 
| HADOOP-18334 | Fix create-release to address removal of GPG_AGENT_INFO in branch-3.2 | Major | build | Masatake Iwasaki | Masatake Iwasaki |