|  HADOOP-15939  | 
 Filter overlapping objenesis class in hadoop-client-minicluster  | 
  Minor  | 
 build  | 
 Xiaoyu Yao  | 
 Xiaoyu Yao  | 
|  YARN-8936  | 
 Bump up Atsv2 hbase versions  | 
  Major  | 
 .  | 
 Rohith Sharma K S  | 
 Vrushali C  | 
|  HDFS-14189  | 
 Fix intermittent failure of TestNameNodeMetrics  | 
  Major  | 
 .  | 
 Ayush Saxena  | 
 Ayush Saxena  | 
|  YARN-9246  | 
 NPE when executing a command yarn node -status or -states without additional arguments  | 
  Minor  | 
 client  | 
 Masahiro Tanaka  | 
 Masahiro Tanaka  | 
|  YARN-7266  | 
 Timeline Server event handler threads locked  | 
  Major  | 
 ATSv2, timelineserver  | 
 Venkata Puneet Ravuri  | 
 Prabhu Joseph  | 
|  YARN-9990  | 
 Testcase fails with “Insufficient configured threads: required=16 < max=10”  | 
  Major  | 
 .  | 
 Prabhu Joseph  | 
 Prabhu Joseph  | 
|  YARN-10020  | 
 Fix build instruction of hadoop-yarn-ui  | 
  Minor  | 
 yarn-ui-v2  | 
 Masatake Iwasaki  | 
 Masatake Iwasaki  | 
|  YARN-10037  | 
 Upgrade build tools for YARN Web UI v2  | 
  Major  | 
 build, security, yarn-ui-v2  | 
 Akira Ajisaka  | 
 Masatake Iwasaki  | 
|  HDFS-15187  | 
 CORRUPT replica mismatch between namenodes after failover  | 
  Critical  | 
 .  | 
 Ayush Saxena  | 
 Ayush Saxena  | 
|  HDFS-15200  | 
 Delete Corrupt Replica Immediately Irrespective of Replicas On Stale Storage  | 
  Critical  | 
 .  | 
 Ayush Saxena  | 
 Ayush Saxena  | 
|  HDFS-15113  | 
 Missing IBR when NameNode restart if open processCommand async feature  | 
  Blocker  | 
 datanode  | 
 Xiaoqiao He  | 
 Xiaoqiao He  | 
|  HDFS-15210  | 
 EC : File write hanged when DN is shutdown by admin command.  | 
  Major  | 
 ec  | 
 Surendra Singh Lilhore  | 
 Surendra Singh Lilhore  | 
|  HADOOP-16768  | 
 SnappyCompressor test cases wrongly assume that the compressed data is always smaller than the input data  | 
  Major  | 
 io, test  | 
 zhao bo  | 
 Akira Ajisaka  | 
|  HDFS-11041  | 
 Unable to unregister FsDatasetState MBean if DataNode is shutdown twice  | 
  Trivial  | 
 datanode  | 
 Wei-Chiu Chuang  | 
 Wei-Chiu Chuang  | 
|  HADOOP-17068  | 
 client fails forever when namenode ipaddr changed  | 
  Major  | 
 hdfs-client  | 
 Sean Chow  | 
 Sean Chow  | 
|  HDFS-15378  | 
 TestReconstructStripedFile#testErasureCodingWorkerXmitsWeight is failing on trunk  | 
  Major  | 
 .  | 
 Hemanth Boyina  | 
 Hemanth Boyina  | 
|  YARN-10331  | 
 Upgrade node.js to 10.21.0  | 
  Critical  | 
 build, yarn-ui-v2  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  HADOOP-17119  | 
 Jetty upgrade to 9.4.x causes MR app fail with IOException  | 
  Major  | 
 .  | 
 Bilwa S T  | 
 Bilwa S T  | 
|  HADOOP-17138  | 
 Fix spotbugs warnings surfaced after upgrade to 4.0.6  | 
  Minor  | 
 .  | 
 Masatake Iwasaki  | 
 Masatake Iwasaki  | 
|  HDFS-15439  | 
 Setting dfs.mover.retry.max.attempts to negative value will retry forever.  | 
  Major  | 
 balancer & mover  | 
 AMC-team  | 
 AMC-team  | 
|  YARN-10430  | 
 Log improvements in NodeStatusUpdaterImpl  | 
  Minor  | 
 nodemanager  | 
 Bilwa S T  | 
 Bilwa S T  | 
|  HDFS-15438  | 
 Setting dfs.disk.balancer.max.disk.errors = 0 will fail the block copy  | 
  Major  | 
 balancer & mover  | 
 AMC-team  | 
 AMC-team  | 
|  YARN-10438  | 
 Handle null containerId in ClientRMService#getContainerReport()  | 
  Major  | 
 resourcemanager  | 
 Raghvendra Singh  | 
 Shubham Gupta  | 
|  HDFS-15628  | 
 HttpFS server throws NPE if a file is a symlink  | 
  Major  | 
 fs, httpfs  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-15627  | 
 Audit log deletes before collecting blocks  | 
  Major  | 
 logging, namenode  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HADOOP-17309  | 
 Javadoc warnings and errors are ignored in the precommit jobs  | 
  Major  | 
 build, documentation  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  HADOOP-17310  | 
 Touch command with -c  option is broken  | 
  Major  | 
 .  | 
 Ayush Saxena  | 
 Ayush Saxena  | 
|  HDFS-15639  | 
 [JDK 11] Fix Javadoc errors in hadoop-hdfs-client  | 
  Major  | 
 .  | 
 Takanobu Asanuma  | 
 Takanobu Asanuma  | 
|  HDFS-15622  | 
 Deleted blocks linger in the replications queue  | 
  Major  | 
 hdfs  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-15641  | 
 DataNode could meet deadlock if invoke refreshNameNode  | 
  Critical  | 
 .  | 
 Hongbing Wang  | 
 Hongbing Wang  | 
|  MAPREDUCE-7302  | 
 Upgrading to JUnit 4.13 causes testcase TestFetcher.testCorruptedIFile() to fail  | 
  Major  | 
 test  | 
 Peter Bacsko  | 
 Peter Bacsko  | 
|  HDFS-15644  | 
 Failed volumes can cause DNs to stop block reporting  | 
  Major  | 
 block placement, datanode  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HADOOP-17236  | 
 Bump up snakeyaml to 1.26 to mitigate CVE-2017-18640  | 
  Major  | 
 .  | 
 Brahma Reddy Battula  | 
 Brahma Reddy Battula  | 
|  YARN-10467  | 
 ContainerIdPBImpl objects can be leaked in RMNodeImpl.completedContainers  | 
  Major  | 
 resourcemanager  | 
 Haibo Chen  | 
 Haibo Chen  | 
|  HADOOP-17329  | 
 mvn site commands fails due to MetricsSystemImpl changes  | 
  Major  | 
 .  | 
 Xiaoqiao He  | 
 Xiaoqiao He  | 
|  HDFS-15651  | 
 Client could not obtain block when DN CommandProcessingThread exit  | 
  Major  | 
 .  | 
 Yiqun Lin  | 
 Mingxiang Li  | 
|  HADOOP-17340  | 
 TestLdapGroupsMapping failing -string mismatch in exception validation  | 
  Major  | 
 test  | 
 Steve Loughran  | 
 Steve Loughran  | 
|  HADOOP-17352  | 
 Update PATCH_NAMING_RULE in the personality file  | 
  Minor  | 
 build  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  HDFS-15485  | 
 Fix outdated properties of JournalNode when performing rollback  | 
  Minor  | 
 .  | 
 Deegue  | 
 Deegue  | 
|  HADOOP-17358  | 
 Improve excessive reloading of Configurations  | 
  Major  | 
 conf  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-15538  | 
 Fix the documentation for dfs.namenode.replication.max-streams in hdfs-default.xml  | 
  Major  | 
 .  | 
 Xieming Li  | 
 Xieming Li  | 
|  HADOOP-17362  | 
 Doing hadoop ls on Har file triggers too many RPC calls  | 
  Major  | 
 fs  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  YARN-10485  | 
 TimelineConnector swallows InterruptedException  | 
  Major  | 
 .  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HADOOP-17360  | 
 Log the remote address for authentication success  | 
  Minor  | 
 ipc  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HADOOP-17346  | 
 Fair call queue is defeated by abusive service principals  | 
  Major  | 
 common, ipc  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  YARN-10470  | 
 When building new web ui with root user, the bower install should support it.  | 
  Major  | 
 build, yarn-ui-v2  | 
 Qi Zhu  | 
 Qi Zhu  | 
|  YARN-10498  | 
 Fix Yarn CapacityScheduler Markdown document  | 
  Trivial  | 
 documentation  | 
 zhaoshengjie  | 
 zhaoshengjie  | 
|  HDFS-15695  | 
 NN should not let the balancer run in safemode  | 
  Major  | 
 namenode  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  YARN-10511  | 
 Update yarn.nodemanager.env-whitelist value in docs  | 
  Minor  | 
 documentation  | 
 Andrea Scarpino  | 
 Andrea Scarpino  | 
|  HDFS-15707  | 
 NNTop counts don’t add up as expected  | 
  Major  | 
 hdfs, metrics, namenode  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-15709  | 
 EC: Socket file descriptor leak in StripedBlockChecksumReconstructor  | 
  Major  | 
 datanode, ec, erasure-coding  | 
 Yushi Hayasaka  | 
 Yushi Hayasaka  | 
|  YARN-10491  | 
 Fix deprecation warnings in SLSWebApp.java  | 
  Minor  | 
 build  | 
 Akira Ajisaka  | 
 Ankit Kumar  | 
|  HADOOP-13571  | 
 ServerSocketUtil.getPort() should use loopback address, not 0.0.0.0  | 
  Major  | 
 .  | 
 Eric Badger  | 
 Eric Badger  | 
|  HDFS-15725  | 
 Lease Recovery never completes for a committed block which the DNs never finalize  | 
  Major  | 
 namenode  | 
 Stephen O’Donnell  | 
 Stephen O’Donnell  | 
|  HDFS-15170  | 
 EC: Block gets marked as CORRUPT in case of failover and pipeline recovery  | 
  Critical  | 
 erasure-coding  | 
 Ayush Saxena  | 
 Ayush Saxena  | 
|  HDFS-15719  | 
 [Hadoop 3] Both NameNodes can crash simultaneously due to the short JN socket timeout  | 
  Critical  | 
 .  | 
 Wei-Chiu Chuang  | 
 Wei-Chiu Chuang  | 
|  YARN-10560  | 
 Upgrade node.js to 10.23.1 and yarn to 1.22.5 in Web UI v2  | 
  Major  | 
 webapp, yarn-ui-v2  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  YARN-10528  | 
 maxAMShare should only be accepted for leaf queues, not parent queues  | 
  Major  | 
 .  | 
 Siddharth Ahuja  | 
 Siddharth Ahuja  | 
|  HADOOP-17438  | 
 Increase docker memory limit in Jenkins  | 
  Major  | 
 build, scripts, test, yetus  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  MAPREDUCE-7310  | 
 Clear the fileMap in JHEventHandlerForSigtermTest  | 
  Minor  | 
 test  | 
 Zhengxi Li  | 
 Zhengxi Li  | 
|  HADOOP-16947  | 
 Stale record should be remove when MutableRollingAverages generating aggregate data.  | 
  Major  | 
 .  | 
 Haibin Huang  | 
 Haibin Huang  | 
|  HDFS-15632  | 
 AbstractContractDeleteTest should set recursive parameter to true for recursive test cases.  | 
  Major  | 
 .  | 
 Konstantin Shvachko  | 
 Anton Kutuzov  | 
|  HDFS-10498  | 
 Intermittent test failure org.apache.hadoop.hdfs.server.namenode.snapshot.TestSnapshotFileLength.testSnapshotfileLength  | 
  Major  | 
 hdfs, snapshots  | 
 Hanisha Koneru  | 
 Jim Brennan  | 
|  HADOOP-17506  | 
 Fix typo in BUILDING.txt  | 
  Trivial  | 
 documentation  | 
 Gautham Banasandra  | 
 Gautham Banasandra  | 
|  HDFS-15795  | 
 EC: Wrong checksum when reconstruction was failed by exception  | 
  Major  | 
 datanode, ec, erasure-coding  | 
 Yushi Hayasaka  | 
 Yushi Hayasaka  | 
|  HDFS-15779  | 
 EC: fix NPE caused by StripedWriter.clearBuffers during reconstruct block  | 
  Major  | 
 .  | 
 Hongbing Wang  | 
 Hongbing Wang  | 
|  HDFS-15798  | 
 EC: Reconstruct task failed, and It would be XmitsInProgress of DN has negative number  | 
  Major  | 
 .  | 
 Haiyang Hu  | 
 Haiyang Hu  | 
|  YARN-10428  | 
 Zombie applications in the YARN queue using FAIR + sizebasedweight  | 
  Critical  | 
 capacityscheduler  | 
 Guang Yang  | 
 Andras Gyori  | 
|  YARN-10607  | 
 User environment is unable to prepend PATH when mapreduce.admin.user.env also sets PATH  | 
  Major  | 
 .  | 
 Eric Badger  | 
 Eric Badger  | 
|  HADOOP-17516  | 
 Upgrade ant to 1.10.9  | 
  Major  | 
 .  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  YARN-10500  | 
 TestDelegationTokenRenewer fails intermittently  | 
  Major  | 
 test  | 
 Akira Ajisaka  | 
 Masatake Iwasaki  | 
|  HADOOP-17534  | 
 Upgrade Jackson databind to 2.10.5.1  | 
  Major  | 
 build  | 
 Adam Roberts  | 
 Akira Ajisaka  | 
|  MAPREDUCE-7323  | 
 Remove job_history_summary.py  | 
  Major  | 
 .  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  YARN-10647  | 
 Fix TestRMNodeLabelsManager failed after YARN-10501.  | 
  Major  | 
 .  | 
 Qi Zhu  | 
 Qi Zhu  | 
|  HADOOP-17510  | 
 Hadoop prints sensitive Cookie information.  | 
  Major  | 
 .  | 
 Renukaprasad C  | 
 Renukaprasad C  | 
|  HDFS-15422  | 
 Reported IBR is partially replaced with stored info when queuing.  | 
  Critical  | 
 namenode  | 
 Kihwal Lee  | 
 Stephen O’Donnell  | 
|  YARN-10651  | 
 CapacityScheduler crashed with NPE in AbstractYarnScheduler.updateNodeResource()  | 
  Major  | 
 .  | 
 Haibo Chen  | 
 Haibo Chen  | 
|  MAPREDUCE-7320  | 
 ClusterMapReduceTestCase does not clean directories  | 
  Major  | 
 .  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-14013  | 
 Skip any credentials stored in HDFS when starting ZKFC  | 
  Major  | 
 hdfs  | 
 Krzysztof Adamski  | 
 Stephen O’Donnell  | 
|  HDFS-15849  | 
 ExpiredHeartbeats metric should be of Type.COUNTER  | 
  Major  | 
 metrics  | 
 Konstantin Shvachko  | 
 Qi Zhu  | 
|  YARN-10672  | 
 All testcases in TestReservations are flaky  | 
  Major  | 
 .  | 
 Szilard Nemeth  | 
 Szilard Nemeth  | 
|  HADOOP-17557  | 
 skip-dir option is not processed by Yetus  | 
  Major  | 
 build, precommit, yetus  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-15875  | 
 Check whether file is being truncated before truncate  | 
  Major  | 
 .  | 
 Hui Fei  | 
 Hui Fei  | 
|  HADOOP-17582  | 
 Replace GitHub App Token with GitHub OAuth token  | 
  Major  | 
 build  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  YARN-10687  | 
 Add option to disable/enable free disk space checking and percentage checking for full and not-full disks  | 
  Major  | 
 nodemanager  | 
 Qi Zhu  | 
 Qi Zhu  | 
|  HADOOP-17586  | 
 Upgrade org.codehaus.woodstox:stax2-api to 4.2.1  | 
  Major  | 
 .  | 
 Ayush Saxena  | 
 Ayush Saxena  | 
|  HADOOP-17585  | 
 Correct timestamp format in the docs for the touch command  | 
  Major  | 
 .  | 
 Stephen O’Donnell  | 
 Stephen O’Donnell  | 
|  YARN-10588  | 
 Percentage of queue and cluster is zero in WebUI  | 
  Major  | 
 .  | 
 Bilwa S T  | 
 Bilwa S T  | 
|  MAPREDUCE-7322  | 
 revisiting TestMRIntermediateDataEncryption  | 
  Major  | 
 job submission, security, test  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HADOOP-17592  | 
 Fix the wrong CIDR range example in Proxy User documentation  | 
  Minor  | 
 documentation  | 
 Kwangsun Noh  | 
 Kwangsun Noh  | 
|  YARN-10706  | 
 Upgrade com.github.eirslett:frontend-maven-plugin to 1.11.2  | 
  Major  | 
 buid  | 
 Mingliang Liu  | 
 Mingliang Liu  | 
|  MAPREDUCE-7325  | 
 Intermediate data encryption is broken in LocalJobRunner  | 
  Major  | 
 job submission, security  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  YARN-10697  | 
 Resources are displayed in bytes in UI for schedulers other than capacity  | 
  Major  | 
 .  | 
 Bilwa S T  | 
 Bilwa S T  | 
|  HADOOP-17602  | 
 Upgrade JUnit to 4.13.1  | 
  Major  | 
 build, security, test  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-15900  | 
 RBF: empty blockpool id on dfsrouter caused by UNAVAILABLE NameNode  | 
  Major  | 
 rbf  | 
 Harunobu Daikoku  | 
 Harunobu Daikoku  | 
|  YARN-10501  | 
 Can’t remove all node labels after add node label without nodemanager port  | 
  Critical  | 
 yarn  | 
 caozhiqiang  | 
 caozhiqiang  | 
|  YARN-10716  | 
 Fix typo in ContainerRuntime  | 
  Trivial  | 
 documentation  | 
 Wanqiang Ji  | 
 xishuhai  | 
|  HDFS-15950  | 
 Remove unused hdfs.proto import  | 
  Major  | 
 hdfs-client  | 
 Gautham Banasandra  | 
 Gautham Banasandra  | 
|  HDFS-15949  | 
 Fix integer overflow  | 
  Major  | 
 libhdfs++  | 
 Gautham Banasandra  | 
 Gautham Banasandra  | 
|  HDFS-15948  | 
 Fix test4tests for libhdfspp  | 
  Critical  | 
 build, libhdfs++  | 
 Gautham Banasandra  | 
 Gautham Banasandra  | 
|  HADOOP-17608  | 
 Fix TestKMS failure  | 
  Major  | 
 kms  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  YARN-10460  | 
 Upgrading to JUnit 4.13 causes tests in TestNodeStatusUpdater to fail  | 
  Major  | 
 nodemanager, test  | 
 Peter Bacsko  | 
 Peter Bacsko  | 
|  HADOOP-17641  | 
 ITestWasbUriAndConfiguration.testCanonicalServiceName() failing now mockaccount exists  | 
  Minor  | 
 fs/azure, test  | 
 Steve Loughran  | 
 Steve Loughran  | 
|  HADOOP-17655  | 
 Upgrade Jetty to 9.4.40  | 
  Blocker  | 
 .  | 
 Akira Ajisaka  | 
 Akira Ajisaka  | 
|  YARN-10749  | 
 Can’t remove all node labels after add node label without nodemanager port, broken by YARN-10647  | 
  Major  | 
 .  | 
 D M Murali Krishna Reddy  | 
 D M Murali Krishna Reddy  | 
|  HDFS-15621  | 
 Datanode DirectoryScanner uses excessive memory  | 
  Major  | 
 datanode  | 
 Stephen O’Donnell  | 
 Stephen O’Donnell  | 
|  YARN-10756  | 
 Remove additional junit 4.11 dependency from javadoc  | 
  Major  | 
 build, test, timelineservice  | 
 ANANDA G B  | 
 Akira Ajisaka  | 
|  YARN-10555  | 
  Missing access check before getAppAttempts  | 
  Critical  | 
 webapp  | 
 lujie  | 
 lujie  | 
|  HADOOP-17703  | 
 checkcompatibility.py errors out when specifying annotations  | 
  Major  | 
 .  | 
 Wei-Chiu Chuang  | 
 Wei-Chiu Chuang  | 
|  HADOOP-14922  | 
 Build of Mapreduce Native Task module fails with unknown opcode “bswap”  | 
  Major  | 
 .  | 
 Anup Halarnkar  | 
 Anup Halarnkar  | 
|  HADOOP-17718  | 
 Explicitly set locale in the Dockerfile  | 
  Blocker  | 
 build  | 
 Wei-Chiu Chuang  | 
 Wei-Chiu Chuang  | 
|  HADOOP-17700  | 
 ExitUtil#halt info log should log HaltException  | 
  Major  | 
 .  | 
 Viraj Jasani  | 
 Viraj Jasani  | 
|  YARN-10770  | 
 container-executor permission is wrong in SecureContainer.md  | 
  Major  | 
 documentation  | 
 Akira Ajisaka  | 
 Siddharth Ahuja  | 
|  HDFS-15915  | 
 Race condition with async edits logging due to updating txId outside of the namesystem log  | 
  Major  | 
 hdfs, namenode  | 
 Konstantin Shvachko  | 
 Konstantin Shvachko  | 
|  HDFS-16040  | 
 RpcQueueTime metric counts requeued calls as unique events.  | 
  Major  | 
 hdfs  | 
 Simbarashe Dzinamarira  | 
 Simbarashe Dzinamarira  | 
|  YARN-10809  | 
 testWithHbaseConfAtHdfsFileSystem consistently failing  | 
  Major  | 
 .  | 
 Viraj Jasani  | 
 Viraj Jasani  | 
|  HDFS-16055  | 
 Quota is not preserved in snapshot INode  | 
  Major  | 
 hdfs  | 
 Siyao Meng  | 
 Siyao Meng  | 
|  HDFS-16068  | 
 WebHdfsFileSystem has a possible connection leak in connection with HttpFS  | 
  Major  | 
 .  | 
 Takanobu Asanuma  | 
 Takanobu Asanuma  | 
|  YARN-10767  | 
 Yarn Logs Command retrying on Standby RM for 30 times  | 
  Major  | 
 .  | 
 D M Murali Krishna Reddy  | 
 D M Murali Krishna Reddy  | 
|  HDFS-15618  | 
 Improve datanode shutdown latency  | 
  Major  | 
 datanode  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HADOOP-17760  | 
 Delete hadoop.ssl.enabled and dfs.https.enable from docs and core-default.xml  | 
  Major  | 
 documentation  | 
 Takanobu Asanuma  | 
 Takanobu Asanuma  | 
|  HDFS-13671  | 
 Namenode deletes large dir slowly caused by FoldedTreeSet#removeAndGet  | 
  Major  | 
 .  | 
 Yiqun Lin  | 
 Haibin Huang  | 
|  HDFS-16061  | 
 DFTestUtil.waitReplication can produce false positives  | 
  Major  | 
 hdfs  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-14575  | 
 LeaseRenewer#daemon threads leak in DFSClient  | 
  Major  | 
 .  | 
 Tao Yang  | 
 Renukaprasad C  | 
|  YARN-10826  | 
 [UI2] Upgrade Node.js to at least v12.22.1  | 
  Major  | 
 yarn-ui-v2  | 
 Akira Ajisaka  | 
 Masatake Iwasaki  | 
|  YARN-10828  | 
 Backport YARN-9789 to branch-3.2  | 
  Major  | 
 .  | 
 Tarun Parimi  | 
 Tarun Parimi  | 
|  HADOOP-17769  | 
 Upgrade JUnit to 4.13.2  | 
  Major  | 
 .  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  YARN-10824  | 
 Title not set for JHS and NM webpages  | 
  Major  | 
 .  | 
 Rajshree Mishra  | 
 Bilwa S T  | 
|  HDFS-16092  | 
 Avoid creating LayoutFlags redundant objects  | 
  Major  | 
 .  | 
 Viraj Jasani  | 
 Viraj Jasani  | 
|  HDFS-16108  | 
 Incorrect log placeholders used in JournalNodeSyncer  | 
  Minor  | 
 .  | 
 Viraj Jasani  | 
 Viraj Jasani  | 
|  MAPREDUCE-7353  | 
 Mapreduce job fails when NM is stopped  | 
  Major  | 
 .  | 
 Bilwa S T  | 
 Bilwa S T  | 
|  HDFS-16121  | 
 Iterative snapshot diff report can generate duplicate records for creates, deletes and Renames  | 
  Major  | 
 snapshots  | 
 Srinivasu Majeti  | 
 Shashikant Banerjee  | 
|  HDFS-15796  | 
 ConcurrentModificationException error happens on NameNode occasionally  | 
  Critical  | 
 hdfs  | 
 Daniel Ma  | 
 Daniel Ma  | 
|  HADOOP-17793  | 
 Better token validation  | 
  Major  | 
 .  | 
 Artem Smotrakov  | 
 Artem Smotrakov  | 
|  HDFS-16042  | 
 DatanodeAdminMonitor scan should be delay based  | 
  Major  | 
 datanode  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  HDFS-16127  | 
 Improper pipeline close recovery causes a permanent write failure or data loss.  | 
  Major  | 
 .  | 
 Kihwal Lee  | 
 Kihwal Lee  | 
|  HADOOP-17028  | 
 ViewFS should initialize target filesystems lazily  | 
  Major  | 
 client-mounts, fs, viewfs  | 
 Uma Maheswara Rao G  | 
 Abhishek Das  | 
|  HDFS-12920  | 
 HDFS default value change (with adding time unit) breaks old version MR tarball work with Hadoop 3.x  | 
  Critical  | 
 configuration, hdfs  | 
 Junping Du  | 
 Akira Ajisaka  | 
|  YARN-10813  | 
 Set default capacity of root for node labels  | 
  Major  | 
 .  | 
 Andras Gyori  | 
 Andras Gyori  | 
|  YARN-9551  | 
 TestTimelineClientV2Impl.testSyncCall fails intermittently  | 
  Minor  | 
 ATSv2, test  | 
 Prabhu Joseph  | 
 Andras Gyori  | 
|  HDFS-15175  | 
 Multiple CloseOp shared block instance causes the standby namenode to crash when rolling editlog  | 
  Critical  | 
 .  | 
 Yicong Cai  | 
 Wan Chang  | 
|  YARN-10789  | 
 RM HA startup can fail due to race conditions in ZKConfigurationStore  | 
  Major  | 
 .  | 
 Tarun Parimi  | 
 Tarun Parimi  | 
|  YARN-6221  | 
 Entities missing from ATS when summary log file info got returned to the ATS before the domain log  | 
  Critical  | 
 yarn  | 
 Sushmitha Sreenivasan  | 
 Xiaomin Zhang  | 
|  MAPREDUCE-7258  | 
 HistoryServerRest.html#Task_Counters_API, modify the jobTaskCounters’s itemName from “taskcounterGroup” to “taskCounterGroup”.  | 
  Minor  | 
 documentation  | 
 jenny  | 
 jenny  | 
|  YARN-8990  | 
 Fix fair scheduler race condition in app submit and queue cleanup  | 
  Blocker  | 
 fairscheduler  | 
 Wilfred Spiegelenburg  | 
 Wilfred Spiegelenburg  | 
|  YARN-8992  | 
 Fair scheduler can delete a dynamic queue while an application attempt is being added to the queue  | 
  Major  | 
 fairscheduler  | 
 Haibo Chen  | 
 Wilfred Spiegelenburg  | 
|  HADOOP-17370  | 
 Upgrade commons-compress to 1.21  | 
  Major  | 
 common  | 
 Dongjoon Hyun  | 
 Akira Ajisaka  | 
|  HADOOP-17844  | 
 Upgrade JSON smart to 2.4.7  | 
  Major  | 
 .  | 
 Renukaprasad C  | 
 Renukaprasad C  | 
|  HADOOP-17850  | 
 Upgrade ZooKeeper to 3.4.14 in branch-3.2  | 
  Major  | 
 .  | 
 Akira Ajisaka  | 
 Masatake Iwasaki  | 
|  HDFS-16177  | 
 Bug fix for Util#receiveFile  | 
  Minor  | 
 .  | 
 tomscut  | 
 tomscut  | 
|  YARN-10814  | 
 YARN shouldn’t start with empty hadoop.http.authentication.signature.secret.file  | 
  Major  | 
 .  | 
 Benjamin Teke  | 
 Tamas Domok  | 
|  HADOOP-17858  | 
 Avoid possible class loading deadlock with VerifierNone initialization  | 
  Major  | 
 .  | 
 Viraj Jasani  | 
 Viraj Jasani  | 
|  HADOOP-17886  | 
 Upgrade ant to 1.10.11  | 
  Major  | 
 .  | 
 Ahmed Hussein  | 
 Ahmed Hussein  | 
|  YARN-10901  | 
 Permission checking error on an existing directory in LogAggregationFileController#verifyAndCreateRemoteLogDir  | 
  Major  | 
 nodemanager  | 
 Tamas Domok  | 
 Tamas Domok  | 
|  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  | 
|  HADOOP-17917  | 
 Backport HADOOP-15993 to branch-3.2 which address CVE-2014-4611  | 
  Major  | 
 .  | 
 Brahma Reddy Battula  | 
 Brahma Reddy Battula  | 
|  HDFS-16233  | 
 Do not use exception handler to implement copy-on-write for EnumCounters  | 
  Major  | 
 namenode  | 
 Wei-Chiu Chuang  | 
 Wei-Chiu Chuang  | 
|  HDFS-16235  | 
 Deadlock in LeaseRenewer for static remove method  | 
  Major  | 
 hdfs  | 
 angerszhu  | 
 angerszhu  | 
|  HADOOP-17940  | 
 Upgrade Kafka to 2.8.1  | 
  Major  | 
 .  | 
 Takanobu Asanuma  | 
 Takanobu Asanuma  | 
|  HDFS-16272  | 
 Int overflow in computing safe length during EC block recovery  | 
  Critical  | 
 3.1.1  | 
 daimin  | 
 daimin  | 
|  HADOOP-17971  | 
 Exclude IBM Java security classes from being shaded/relocated  | 
  Major  | 
 build  | 
 Nicholas Marion  | 
 Nicholas Marion  | 
|  HADOOP-17972  | 
 Backport HADOOP-17683 for branch-3.2  | 
  Major  | 
 security  | 
 Ananya Singh  | 
 Ananya Singh  | 
|  HADOOP-17993  | 
 Disable JIRA plugin for YETUS on Hadoop  | 
  Critical  | 
 build  | 
 Gautham Banasandra  | 
 Gautham Banasandra  | 
|  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  | 
|  HDFS-16350  | 
 Datanode start time should be set after RPC server starts successfully  | 
  Minor  | 
 .  | 
 Viraj Jasani  | 
 Viraj Jasani  | 
|  HADOOP-13500  | 
 Synchronizing iteration of Configuration properties object  | 
  Major  | 
 conf  | 
 Jason Darrell Lowe  | 
 Dhananjay Badaya  | 
|  HDFS-16317  | 
 Backport HDFS-14729 for branch-3.2  | 
  Major  | 
 security  | 
 Ananya Singh  | 
 Ananya Singh  | 
|  HDFS-14099  | 
 Unknown frame descriptor when decompressing multiple frames in ZStandardDecompressor  | 
  Major  | 
 .  | 
 xuzq  | 
 xuzq  | 
|  HDFS-16410  | 
 Insecure Xml parsing in OfflineEditsXmlLoader  | 
  Minor  | 
 .  | 
 Ashutosh Gupta  | 
 Ashutosh Gupta  | 
|  HDFS-16420  | 
 Avoid deleting unique data blocks when deleting redundancy striped blocks  | 
  Critical  | 
 ec, erasure-coding  | 
 qinyuren  | 
 Jackson Wang  | 
|  HDFS-16428  | 
 Source path with storagePolicy cause wrong typeConsumed while rename  | 
  Major  | 
 hdfs, namenode  | 
 lei w  | 
 lei w  | 
|  HDFS-16437  | 
 ReverseXML processor doesn’t accept XML files without the SnapshotDiffSection.  | 
  Critical  | 
 hdfs  | 
 yanbin.zhang  | 
 yanbin.zhang  | 
|  HDFS-16422  | 
 Fix thread safety of EC decoding during concurrent preads  | 
  Critical  | 
 dfsclient, ec, erasure-coding  | 
 daimin  | 
 daimin  |