| YARN-7361 | Improve the docker container runtime documentation | Major | . | Shane Kumpf | Shane Kumpf |
| YARN-7489 | ConcurrentModificationException in RMAppImpl#getRMAppMetrics | Major | capacityscheduler | Tao Yang | Tao Yang |
| YARN-7525 | Incorrect query parameters in cluster nodes REST API document | Minor | documentation | Tao Yang | Tao Yang |
| HADOOP-15046 | Document Apache Hadoop does not support Java 9 in BUILDING.txt | Major | documentation | Akira Ajisaka | Hanisha Koneru |
| YARN-7531 | ResourceRequest.equal does not check ExecutionTypeRequest.enforceExecutionType() | Major | api | Haibo Chen | Haibo Chen |
| YARN-7513 | Remove scheduler lock in FSAppAttempt.getWeight() | Minor | fairscheduler | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
| YARN-7390 | All reservation related test cases failed when TestYarnClient runs against Fair Scheduler. | Major | fairscheduler, reservation system | Yufei Gu | Yufei Gu |
| YARN-7363 | ContainerLocalizer doesn't have a valid log4j config when using LinuxContainerExecutor | Major | nodemanager | Yufei Gu | Yufei Gu |
| HDFS-12832 | INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit | Critical | namenode | DENG FEI | Konstantin Shvachko |
| HADOOP-15042 | Azure PageBlobInputStream.skip() can return negative value when numberOfPagesRemaining is 0 | Minor | fs/azure | Rajesh Balamohan | Rajesh Balamohan |
| YARN-7558 | “yarn logs” command fails to get logs for running containers if UI authentication is enabled. | Critical | . | Namit Maheshwari | Xuan Gong |
| HDFS-12638 | Delete copy-on-truncate block along with the original block, when deleting a file being truncated | Blocker | hdfs | Jiandan Yang | Konstantin Shvachko |
| HDFS-12836 | startTxId could be greater than endTxId when tailing in-progress edit log | Major | hdfs | Chao Sun | Chao Sun |
| MAPREDUCE-5124 | AM lacks flow control for task events | Major | mr-am | Jason Lowe | Peter Bacsko |
| YARN-7589 | TestPBImplRecords fails with NullPointerException | Major | . | Jason Lowe | Daniel Templeton |
| YARN-7455 | quote_and_append_arg can overflow buffer | Major | nodemanager | Jason Lowe | Jim Brennan |
| HADOOP-15058 | create-release site build outputs dummy shaded jars due to skipShade | Blocker | . | Andrew Wang | Andrew Wang |
| HADOOP-14985 | Remove subversion related code from VersionInfoMojo.java | Minor | build | Akira Ajisaka | Ajay Kumar |
| HADOOP-15098 | TestClusterTopology#testChooseRandom fails intermittently | Major | test | Zsolt Venczel | Zsolt Venczel |
| HDFS-12891 | Do not invalidate blocks if toInvalidate is empty | Major | . | Zsolt Venczel | Zsolt Venczel |
| YARN-7647 | NM print inappropriate error log when node-labels is enabled | Minor | . | Yang Wang | Yang Wang |
| HDFS-12907 | Allow read-only access to reserved raw for non-superusers | Major | namenode | Daryn Sharp | Rushabh S Shah |
| HDFS-12881 | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Lowe | Ajay Kumar |
| YARN-7595 | Container launching code suppresses close exceptions after writes | Major | nodemanager | Jason Lowe | Jim Brennan |
| HADOOP-15085 | Output streams closed with IOUtils suppressing write errors | Major | . | Jason Lowe | Jim Brennan |
| YARN-7629 | TestContainerLaunch# fails after YARN-7381 | Major | . | Jason Lowe | Jason Lowe |
| YARN-7664 | Several javadoc errors | Blocker | . | Sean Mackrory | Sean Mackrory |
| HADOOP-15123 | KDiag tries to load krb5.conf from KRB5CCNAME instead of KRB5_CONFIG | Minor | security | Vipin Rathor | Vipin Rathor |
| YARN-7661 | NodeManager metrics return wrong value after update node resource | Major | . | Yang Wang | Yang Wang |
| HDFS-12347 | TestBalancerRPCDelay#testBalancerRPCDelay fails very frequently | Critical | test | Xiao Chen | Bharat Viswanadham |
| HDFS-12930 | Remove the extra space in HdfsImageViewer.md | Trivial | documentation | Yiqun Lin | Rahul Pathak |
| YARN-7662 | [Atsv2] Define new set of configurations for reader and collectors to bind. | Major | . | Rohith Sharma K S | Rohith Sharma K S |
| HDFS-12845 | JournalNode Test failures | Major | journal-node | Bharat Viswanadham | Bharat Viswanadham |
| YARN-7466 | ResourceRequest has a different default for allocationRequestId than Container | Major | . | Chandni Singh | Chandni Singh |
| YARN-7674 | Update Timeline Reader web app address in UI2 | Major | . | Rohith Sharma K S | Sunil G |
| HDFS-12938 | TestErasureCodigCLI testAll failing consistently. | Major | erasure-coding, hdfs | Rushabh S Shah | Ajay Kumar |
| YARN-7542 | Fix issue that causes some Running Opportunistic Containers to be recovered as PAUSED | Major | . | Arun Suresh | Sampada Dehankar |
| HDFS-12915 | Fix findbugs warning in INodeFile$HeaderFormat.getBlockLayoutRedundancy | Major | namenode | Wei-Chiu Chuang | Chris Douglas |
| HADOOP-15122 | Lock down version of doxia-module-markdown plugin | Blocker | . | Elek, Marton | Elek, Marton |
| HADOOP-15143 | NPE due to Invalid KerberosTicket in UGI | Major | . | Jitendra Nath Pandey | Mukul Kumar Singh |
| YARN-7692 | Skip validating priority acls while recovering applications | Blocker | resourcemanager | Charan Hebri | Sunil G |
| MAPREDUCE-7028 | Concurrent task progress updates causing NPE in Application Master | Blocker | mr-am | Gergo Repas | Gergo Repas |
| YARN-7602 | NM should reference the singleton JvmMetrics instance | Major | nodemanager | Haibo Chen | Haibo Chen |
| HDFS-12913 | TestDNFencingWithReplication.testFencingStress fix mini cluster not yet active issue | Major | . | Zsolt Venczel | Zsolt Venczel |
| HDFS-12860 | StripedBlockUtil#getRangesInternalBlocks throws exception for the block group size larger than 2GB | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu |
| YARN-7619 | Max AM Resource value in Capacity Scheduler UI has to be refreshed for every user | Major | capacity scheduler, yarn | Eric Payne | Eric Payne |
| YARN-7699 | queueUsagePercentage is coming as INF for getApp REST api call | Major | webapp | Sunil G | Sunil G |
| HDFS-12985 | NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted | Major | hdfs | Manoj Govindassamy | Manoj Govindassamy |
| YARN-7508 | NPE in FiCaSchedulerApp when debug log enabled in async-scheduling mode | Major | capacityscheduler | Tao Yang | Tao Yang |
| YARN-7663 | RMAppImpl:Invalid event: START at KILLED | Minor | resourcemanager | lujie | lujie |
| YARN-6948 | Invalid event: ATTEMPT_ADDED at FINAL_SAVING | Minor | yarn | lujie | lujie |
| HDFS-12994 | TestReconstructStripedFile.testNNSendsErasureCodingTasks fails due to socket timeout | Major | erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu |
| YARN-7665 | Allow FS scheduler state dump to be turned on/off separately from FS debug log | Major | . | Wilfred Spiegelenburg | Wilfred Spiegelenburg |
| HADOOP-15060 | TestShellBasedUnixGroupsMapping.testFiniteGroupResolutionTime flaky | Major | . | Miklos Szegedi | Miklos Szegedi |
| YARN-7735 | Fix typo in YARN documentation | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma |
| YARN-7727 | Incorrect log levels in few logs with QueuePriorityContainerCandidateSelector | Minor | yarn | Prabhu Joseph | Prabhu Joseph |
| HDFS-11915 | Sync rbw dir on the first hsync() to avoid file lost on power failure | Critical | . | Kanaka Kumar Avvaru | Vinayakumar B |
| YARN-7705 | Create the container log directory with correct sticky bit in C code | Major | nodemanager | Yufei Gu | Yufei Gu |
| YARN-7479 | TestContainerManagerSecurity.testContainerManager[Simple] flaky in trunk | Major | test | Botong Huang | Akira Ajisaka |
| HDFS-13004 | TestLeaseRecoveryStriped#testLeaseRecovery is failing when safeLength is 0MB or larger than the test file | Major | hdfs | Zsolt Venczel | Zsolt Venczel |
| HDFS-9049 | Make Datanode Netty reverse proxy port to be configurable | Major | datanode | Vinayakumar B | Vinayakumar B |
| YARN-7758 | Add an additional check to the validity of container and application ids passed to container-executor | Major | nodemanager | Miklos Szegedi | Yufei Gu |
| HADOOP-15150 | in FsShell, UGI params should be overidden through env vars(-D arg) | Major | . | Brahma Reddy Battula | Brahma Reddy Battula |
| HADOOP-15166 | CLI MiniCluster fails with ClassNotFoundException o.a.h.yarn.server.timelineservice.collector.TimelineCollectorManager | Major | . | Gera Shegalov | Gera Shegalov |
| HDFS-13039 | StripedBlockReader#createBlockReader leaks socket on IOException | Critical | datanode, erasure-coding | Lei (Eddy) Xu | Lei (Eddy) Xu |
| HADOOP-15181 | Typo in SecureMode.md | Trivial | documentation | Masahiro Tanaka | Masahiro Tanaka |
| YARN-7796 | Container-executor fails with segfault on certain OS configurations | Major | nodemanager | Gergo Repas | Gergo Repas |
| YARN-7806 | Distributed Shell should use timeline async api's | Major | distributed-shell | Sumana Sathish | Rohith Sharma K S |
| MAPREDUCE-7015 | Possible race condition in JHS if the job is not loaded | Major | jobhistoryserver | Peter Bacsko | Peter Bacsko |
| YARN-7737 | prelaunch.err file not found exception on container failure | Major | . | Jonathan Hung | Keqiu Hu |
| HDFS-13063 | Fix the incorrect spelling in HDFSHighAvailabilityWithQJM.md | Trivial | documentation | Jianfei Jiang | Jianfei Jiang |
| YARN-7102 | NM heartbeat stuck when responseId overflows MAX_INT | Critical | . | Botong Huang | Botong Huang |
| MAPREDUCE-7041 | MR should not try to clean up at first job attempt | Major | . | Takanobu Asanuma | Gergo Repas |
| HDFS-13054 | Handling PathIsNotEmptyDirectoryException in DFSClient delete call | Major | hdfs-client | Nanda kumar | Nanda kumar |
| MAPREDUCE-7020 | Task timeout in uber mode can crash AM | Major | mr-am | Akira Ajisaka | Peter Bacsko |
| YARN-7765 | [Atsv2] GSSException: No valid credentials provided - Failed to find any Kerberos tgt thrown by Timelinev2Client & HBaseClient in NM | Blocker | . | Sumana Sathish | Rohith Sharma K S |
| HDFS-13065 | TestErasureCodingMultipleRacks#testSkewedRack3 is failing | Major | hdfs | Gabor Bota | Gabor Bota |
| HDFS-12974 | Exception message is not printed when creating an encryption zone fails with AuthorizationException | Minor | encryption | fang zhenyi | fang zhenyi |
| YARN-7698 | A misleading variable's name in ApplicationAttemptEventDispatcher | Minor | resourcemanager | Jinjiang Ling | Jinjiang Ling |
| YARN-7790 | Improve Capacity Scheduler Async Scheduling to better handle node failures | Critical | . | Sumana Sathish | Wangda Tan |
| HDFS-12528 | Add an option to not disable short-circuit reads on failures | Major | hdfs-client, performance | Andre Araujo | Xiao Chen |
| HDFS-12897 | getErasureCodingPolicy should handle .snapshot dir better | Major | erasure-coding, hdfs, snapshots | Harshakiran Reddy | LiXin Ge |
| MAPREDUCE-7033 | Map outputs implicitly rely on permissive umask for shuffle | Critical | mrv2 | Jason Lowe | Jason Lowe |
| HDFS-12942 | Synchronization issue in FSDataSetImpl#moveBlock | Major | . | Ajay Kumar | Ajay Kumar |
| HDFS-13048 | LowRedundancyReplicatedBlocks metric can be negative | Major | metrics | Akira Ajisaka | Akira Ajisaka |
| HDFS-13100 | Handle IllegalArgumentException when GETSERVERDEFAULTS is not implemented in webhdfs. | Critical | hdfs, webhdfs | Yongjun Zhang | Yongjun Zhang |
| YARN-7849 | TestMiniYarnClusterNodeUtilization#testUpdateNodeUtilization fails due to heartbeat sync error | Major | test | Jason Lowe | Botong Huang |
| YARN-7801 | AmFilterInitializer should addFilter after fill all parameters | Critical | . | Sumana Sathish | Wangda Tan |
| YARN-7890 | NPE during container relaunch | Major | . | Billie Rinaldi | Jason Lowe |
| YARN-7873 | Revert YARN-6078 | Blocker | . | Billie Rinaldi | Billie Rinaldi |
| HDFS-13115 | In getNumUnderConstructionBlocks(), ignore the inodeIds for which the inodes have been deleted | Major | . | Yongjun Zhang | Yongjun Zhang |
| HDFS-12935 | Get ambiguous result for DFSAdmin command in HA mode when only one namenode is up | Major | tools | Jianfei Jiang | Jianfei Jiang |
| HDFS-13120 | Snapshot diff could be corrupted after concat | Major | namenode, snapshots | Xiaoyu Yao | Xiaoyu Yao |
| HDFS-10453 | ReplicationMonitor thread could stuck for long time due to the race between replication and delete of same file in a large cluster. | Major | namenode | He Xiaoqiao | He Xiaoqiao |
| HDFS-8693 | refreshNamenodes does not support adding a new standby to a running DN | Critical | datanode, ha | Jian Fang | Ajith S |
| MAPREDUCE-7052 | TestFixedLengthInputFormat#testFormatCompressedIn is flaky | Major | client, test | Peter Bacsko | Peter Bacsko |
| HDFS-13112 | Token expiration edits may cause log corruption or deadlock | Critical | namenode | Daryn Sharp | Daryn Sharp |
| YARN-7937 | Fix http method name in Cluster Application Timeout Update API example request | Minor | docs, documentation | Charan Hebri | Charan Hebri |
| HADOOP-10571 | Use Log.*(Object, Throwable) overload to log exceptions | Major | . | Arpit Agarwal | Andras Bokor |
| HDFS-13164 | File not closed if streamer fail with DSQuotaExceededException | Major | hdfs-client | Xiao Chen | Xiao Chen |
| HDFS-13244 | Add stack, conf, metrics links to utilities dropdown in NN webUI | Major | . | Bharat Viswanadham | Bharat Viswanadham |
| YARN-8022 | ResourceManager UI cluster/app/<app-id> page fails to render | Blocker | webapp | Tarun Parimi | Tarun Parimi |