“Apache Hadoop” Changelog

Release 2.8.2 - 2017-10-19

INCOMPATIBLE CHANGES:

JIRA Summary Priority Component Reporter Contributor
HADOOP-14174 Set default ADLS access token provider type to ClientCredential Major fs/adl John Zhuge John Zhuge

IMPORTANT ISSUES:

JIRA Summary Priority Component Reporter Contributor

NEW FEATURES:

JIRA Summary Priority Component Reporter Contributor

IMPROVEMENTS:

JIRA Summary Priority Component Reporter Contributor
HDFS-7764 DirectoryScanner shouldn’t abort the scan if one directory had an error Major datanode Rakesh R Rakesh R
HDFS-7541 Upgrade Domains in HDFS Major . Ming Ma Ming Ma
HDFS-10683 Make class Token$PrivateToken private Minor . John Zhuge John Zhuge
HADOOP-13688 Stop bundling HTML source code in javadoc JARs Major build Andrew Wang Andrew Wang
HADOOP-13737 Cleanup DiskChecker interface Major util Arpit Agarwal Arpit Agarwal
HADOOP-13496 Include file lengths in Mismatch in length error for distcp Minor . Ted Yu Ted Yu
HDFS-10534 NameNode WebUI should display DataNode usage histogram Major namenode, ui Zhe Zhang Kai Sasaki
HADOOP-14050 Add process name to kms process Minor kms, scripts Rushabh S Shah Rushabh S Shah
HDFS-11390 Add process name to httpfs process Minor httpfs, scripts John Zhuge Weiwei Yang
HDFS-11333 Print a user friendly error message when plugins are not found Minor namenode Wei-Chiu Chuang Wei-Chiu Chuang
HDFS-11466 Change dfs.namenode.write-lock-reporting-threshold-ms default from 1000ms to 5000ms Major namenode Andrew Wang Andrew Wang
HDFS-11432 Federation : Support fully qualified path for Quota/Snapshot/cacheadmin/cryptoadmin commands Major federation Brahma Reddy Battula Brahma Reddy Battula
HADOOP-14169 Implement listStatusIterator, listLocatedStatus for ViewFs Minor viewfs Erik Krogen Erik Krogen
HADOOP-14233 Delay construction of PreCondition.check failure message in Configuration#set Major . Jonathan Eagles Jonathan Eagles
HADOOP-14240 Configuration#get return value optimization Major . Jonathan Eagles Jonathan Eagles
YARN-6339 Improve performance for createAndGetApplicationReport Major . yunjiong zhao yunjiong zhao
HDFS-9705 Refine the behaviour of getFileChecksum when length = 0 Minor . Kai Zheng SammiChen
HDFS-11628 Clarify the behavior of HDFS Mover in documentation Major documentation Xiaobing Zhou Xiaobing Zhou
HADOOP-14104 Client should always ask namenode for kms provider path. Major kms Rushabh S Shah Rushabh S Shah
HADOOP-14276 Add a nanosecond API to Time/Timer/FakeTimer Minor util Erik Krogen Erik Krogen
HDFS-11558 BPServiceActor thread name is too long Minor datanode Tsz Wo Nicholas Sze Xiaobing Zhou
HDFS-11648 Lazy construct the IIP pathname Major . Daryn Sharp Daryn Sharp
HDFS-11634 Optimize BlockIterator when iterating starts in the middle. Major . Konstantin Shvachko Konstantin Shvachko
HDFS-11384 Add option for balancer to disperse getBlocks calls to avoid NameNode’s rpc.CallQueueLength spike Major balancer & mover yunjiong zhao Konstantin Shvachko
YARN-6457 Allow custom SSL configuration to be supplied in WebApps Major webapp, yarn Sanjay M Pujare Sanjay M Pujare
HDFS-11641 Reduce cost of audit logging by using FileStatus instead of HdfsFileStatus Major hdfs Daryn Sharp Daryn Sharp
YARN-6493 Print requested node partition in assignContainer logs Major . Jonathan Hung Jonathan Hung
HDFS-11891 DU#refresh should print the path of the directory when an exception is caught Minor . Chen Liang Chen Liang
HADOOP-14440 Add metrics for connections dropped Major . Eric Badger Eric Badger
HDFS-11861 ipc.Client.Connection#sendRpcRequest should log request name Trivial ipc John Zhuge John Zhuge
HDFS-11345 Document the configuration key for FSNamesystem lock fairness Minor documentation, namenode Zhe Zhang Erik Krogen
YARN-6738 LevelDBCacheTimelineStore should reuse ObjectMapper instances Major timelineserver Zoltan Haindrich Zoltan Haindrich
HADOOP-14515 Specifically configure zookeeper-related log levels in KMS log4j Major kms Xiao Chen Xiao Chen
HDFS-11881 NameNode consumes a lot of memory for snapshot diff report generation Major hdfs, snapshots Manoj Govindassamy Manoj Govindassamy
HDFS-12042 Lazy initialize AbstractINodeDiffList#diffs for snapshots to reduce memory consumption Major . Misha Dmitriev Misha Dmitriev
HDFS-12078 Add time unit to the description of property dfs.namenode.stale.datanode.interval in hdfs-default.xml Minor documentation, hdfs Weiwei Yang Weiwei Yang
HADOOP-14629 Improve exception checking in FileContext related JUnit tests Major fs, test Andras Bokor Andras Bokor
HDFS-12137 DN dataset lock should be fair Critical datanode Daryn Sharp Daryn Sharp
HADOOP-14659 UGI getShortUserName does not need to search the Subject Major common Daryn Sharp Daryn Sharp
YARN-6768 Improve performance of yarn api record toString and fromString Major . Jonathan Eagles Jonathan Eagles
YARN-5892 Support user-specific minimum user limit percentage in Capacity Scheduler Major capacityscheduler Eric Payne Eric Payne
YARN-6917 Queue path is recomputed from scratch on every allocation Minor capacityscheduler Jason Lowe Eric Payne
HDFS-12301 NN File Browser UI: Navigate to a path when enter is pressed Trivial ui Ravi Prakash Ravi Prakash
HADOOP-14251 Credential provider should handle property key deprecation Critical security John Zhuge John Zhuge
MAPREDUCE-6937 Backport MAPREDUCE-6870 to branch-2 while preserving compatibility Major . Zhe Zhang Peter Bacsko
YARN-5547 NMLeveldbStateStore should be more tolerant of unknown keys Major nodemanager Jason Lowe Ajith S
YARN-6930 Admins should be able to explicitly enable specific LinuxContainerRuntime in the NodeManager Major nodemanager Vinod Kumar Vavilapalli Shane Kumpf

BUG FIXES:

JIRA Summary Priority Component Reporter Contributor
YARN-524 TestYarnVersionInfo failing if generated properties doesn’t include an SVN URL Minor api Steve Loughran Steve Loughran
YARN-1471 The SLS simulator is not running the preemption policy for CapacityScheduler Minor . Carlo Curino Carlo Curino
HADOOP-11703 git should ignore .DS_Store files on Mac OS X Major . Abin Shahab Abin Shahab
YARN-4612 Fix rumen and scheduler load simulator handle killed tasks properly Major . Ming Ma Ming Ma
YARN-4594 container-executor fails to remove directory tree when chmod required Major nodemanager Colin P. McCabe Colin P. McCabe
YARN-4731 container-executor should not follow symlinks in recursive_unlink_children Blocker . Bibin A Chundatt Colin P. McCabe
YARN-4812 TestFairScheduler#testContinuousScheduling fails intermittently Major fairscheduler Karthik Kambatla Karthik Kambatla
YARN-4927 TestRMHA#testTransitionedToActiveRefreshFail fails with FairScheduler Major test Karthik Kambatla Bibin A Chundatt
YARN-4562 YARN WebApp ignores the configuration passed to it for keystore settings Major . Sergey Shelukhin Sergey Shelukhin
HDFS-9276 Failed to Update HDFS Delegation Token for long running application in HA mode Major fs, ha, security Liangliang Gu Liangliang Gu
YARN-5333 Some recovered apps are put into default queue when RM HA Major . Jun Gong Jun Gong
HADOOP-13437 KMS should reload whitelist and default key ACLs when hot-reloading Major kms Xiao Chen Xiao Chen
HDFS-8312 Trash does not descent into child directories to check for permissions Critical fs, security Eric Yang Weiwei Yang
YARN-5920 Fix deadlock in TestRMHA.testTransitionedToStandbyShouldNotHang Major test Rohith Sharma K S Varun Saxena
HADOOP-13867 FilterFileSystem should override rename(.., options) to take effect of Rename options called via FilterFileSystem implementations Major . Vinayakumar B Vinayakumar B
HADOOP-13508 FsPermission string constructor does not recognize sticky bit Major . Atul Sikaria Atul Sikaria
YARN-5988 RM unable to start in secure setup Blocker . Ajith S Ajith S
YARN-6054 TimelineServer fails to start when some LevelDb state files are missing. Critical . Ravi Prakash Ravi Prakash
HADOOP-13928 TestAdlFileContextMainOperationsLive.testGetFileContext1 runtime error Major fs/adl, test John Zhuge John Zhuge
HADOOP-13976 Path globbing does not match newlines Major . Eric Badger Eric Badger
HDFS-11316 TestDataNodeVolumeFailure#testUnderReplicationAfterVolFailure fails in trunk Minor . Yiqun Lin Yiqun Lin
HADOOP-14044 Synchronization issue in delegation token cancel functionality Major . Hrishikesh Gadre Hrishikesh Gadre
HDFS-11377 Balancer hung due to no available mover threads Major balancer & mover yunjiong zhao yunjiong zhao
YARN-6031 Application recovery has failed when node label feature is turned off during RM recovery Minor scheduler Ying Zhang Ying Zhang
YARN-6137 Yarn client implicitly invoke ATS client which accesses HDFS Major . Yesha Vora Li Lu
HADOOP-13433 Race in UGI.reloginFromKeytab Major security Duo Zhang Duo Zhang
HADOOP-13119 Add ability to secure log servlet using proxy users Major . Jeffrey E Rodriguez Yuanbo Liu
HADOOP-14058 Fix NativeS3FileSystemContractBaseTest#testDirWithDifferentMarkersWorks Minor fs/s3, test Akira Ajisaka Yiqun Lin
HDFS-11084 Add a regression test for sticky bit support of OIV ReverseXML processor Major tools Wei-Chiu Chuang Wei-Chiu Chuang
HDFS-11391 Numeric usernames do no work with WebHDFS FS (write access) Major webhdfs Pierre Villard Pierre Villard
HDFS-11177 ‘storagepolicies -getStoragePolicy’ command should accept URI based path. Major shell Surendra Singh Lilhore Surendra Singh Lilhore
HDFS-11404 Increase timeout on TestShortCircuitLocalRead.testDeprecatedGetBlockLocalPathInfoRpc Major . Eric Badger Eric Badger
HADOOP-14114 S3A can no longer handle unencoded + in URIs Minor fs/s3 Sean Mackrory Sean Mackrory
MAPREDUCE-6841 Fix dead link in MapReduce tutorial document Minor documentation Akira Ajisaka Victor Nee
MAPREDUCE-6753 Variable in byte printed directly in mapreduce client Major client Nemo Chen Kai Sasaki
YARN-6263 NMTokenSecretManagerInRM.createAndGetNMToken is not thread safe Major yarn Haibo Chen Haibo Chen
HADOOP-14026 start-build-env.sh: invalid docker image name Major build Gergő Pásztor Gergő Pásztor
HDFS-11441 Add escaping to error message in KMS web UI Minor security Aaron T. Myers Aaron T. Myers
MAPREDUCE-6855 Specify charset when create String in CredentialsTestJob Minor . Akira Ajisaka Kai Sasaki
YARN-6165 Intra-queue preemption occurs even when preemption is turned off for a specific queue. Major capacity scheduler, scheduler preemption Eric Payne Eric Payne
YARN-6310 OutputStreams in AggregatedLogFormat.LogWriter can be left open upon exceptions Major yarn Haibo Chen Haibo Chen
YARN-6321 TestResources test timeouts are too aggressive Major test Jason Lowe Eric Badger
HDFS-11512 Increase timeout on TestShortCircuitLocalRead#testSkipWithVerifyChecksum Minor . Eric Badger Eric Badger
HDFS-11499 Decommissioning stuck because of failing recovery Major hdfs, namenode Lukas Majercak Lukas Majercak
HDFS-11395 RequestHedgingProxyProvider#RequestHedgingInvocationHandler hides the Exception thrown from NameNode Major ha Nanda kumar Nanda kumar
YARN-4051 ContainerKillEvent lost when container is still recovering and application finishes Critical nodemanager sandflee sandflee
YARN-6217 TestLocalCacheDirectoryManager test timeout is too aggressive Major test Jason Lowe Miklos Szegedi
HDFS-11132 Allow AccessControlException in contract tests when getFileStatus on subdirectory of existing files Major fs/adl, test Vishwajeet Dusane Vishwajeet Dusane
HADOOP-14204 S3A multipart commit failing, “UnsupportedOperationException at java.util.Collections$UnmodifiableList.sort” Critical fs/s3 Steve Loughran Steve Loughran
HADOOP-14205 No FileSystem for scheme: adl Major fs/adl John Zhuge John Zhuge
HDFS-11561 HttpFS doc errors Trivial documentation, httpfs, test Yuanbo Liu Yuanbo Liu
HADOOP-9631 ViewFs should use underlying FileSystem’s server side defaults Major fs, viewfs Lohit Vijayarenu Erik Krogen
HADOOP-14214 DomainSocketWatcher::add()/delete() should not self interrupt while looping await() Critical hdfs-client Mingliang Liu Mingliang Liu
HADOOP-14195 CredentialProviderFactory$getProviders is not thread-safe Major security Vihang Karajgaonkar Vihang Karajgaonkar
HADOOP-14211 FilterFs and ChRootedFs are too aggressive about enforcing “authorityNeeded” Major viewfs Erik Krogen Erik Krogen
MAPREDUCE-6866 Fix getNumMapTasks() documentation in JobConf Minor documentation Joe Mészáros Joe Mészáros
MAPREDUCE-6868 License check for jdiff output files should be ignored Major build Akira Ajisaka Akira Ajisaka
HDFS-10506 OIV’s ReverseXML processor cannot reconstruct some snapshot details Major tools Colin P. McCabe Akira Ajisaka
HDFS-11486 Client close() should not fail fast if the last block is being decommissioned Major . Wei-Chiu Chuang Wei-Chiu Chuang
YARN-6359 TestRM#testApplicationKillAtAcceptedState fails rarely due to race condition Major test Robert Kanter Robert Kanter
YARN-5368 Memory leak in timeline server Critical timelineserver Wataru Yukawa Jonathan Eagles
HADOOP-14247 FileContextMainOperationsBaseTest should clean up test root path Minor fs, test Mingliang Liu Mingliang Liu
YARN-6352 Header injections are possible in application proxy servlet Major resourcemanager, security Naganarasimha G R Naganarasimha G R
MAPREDUCE-6873 MR Job Submission Fails if MR framework application path not on defaultFS Minor mrv2 Erik Krogen Erik Krogen
HADOOP-14256 [S3A DOC] Correct the format for “Seoul” example Minor documentation, fs/s3 Brahma Reddy Battula Brahma Reddy Battula
MAPREDUCE-6850 Shuffle Handler keep-alive connections are closed from the server side Major . Jonathan Eagles Jonathan Eagles
HDFS-11592 Closing a file has a wasteful preconditions in NameNode Major namenode Eric Badger Eric Badger
YARN-6354 LeveldbRMStateStore can parse invalid keys when recovering reservations Major resourcemanager Jason Lowe Jason Lowe
HADOOP-14268 Fix markdown itemization in hadoop-aws documents Minor documentation, fs/s3 Akira Ajisaka Akira Ajisaka
YARN-6436 TestSchedulingPolicy#testParseSchedulingPolicy timeout is too low Major test Jason Lowe Eric Badger
YARN-6420 RM startup failure due to wrong order in nodelabel editlog Critical . Bibin A Chundatt Bibin A Chundatt
YARN-6403 Invalid local resource request can raise NPE and make NM exit Major nodemanager Tao Yang Tao Yang
HDFS-11538 Move ClientProtocol HA proxies into hadoop-hdfs-client Blocker hdfs-client Andrew Wang Huafeng Wang
YARN-6437 TestSignalContainer#testSignalRequestDeliveryToNM fails intermittently Major test Jason Lowe Jason Lowe
HDFS-11629 Revert HDFS-11431 hadoop-hdfs-client JAR does not include ConfiguredFailoverProxyProvider. Major . Andrew Wang Andrew Wang
HADOOP-13996 Fix some release build issues Blocker build Andrew Wang Andrew Wang
HDFS-11608 HDFS write crashed with block size greater than 2 GB Critical hdfs-client Xiaobing Zhou Xiaobing Zhou
YARN-6288 Exceptions during aggregated log writes are mishandled Critical log-aggregation Akira Ajisaka Akira Ajisaka
HADOOP-14066 VersionInfo should be marked as public API Critical common Thejas M Nair Akira Ajisaka
HADOOP-14293 Initialize FakeTimer with a less trivial value Major test Andrew Wang Andrew Wang
YARN-6461 TestRMAdminCLI has very low test timeouts Major test Jason Lowe Eric Badger
HDFS-11163 Mover should move the file blocks to default storage once policy is unset Major balancer & mover Surendra Singh Lilhore Surendra Singh Lilhore
YARN-6450 TestContainerManagerWithLCE requires override for each new test added to ContainerManagerTest Major test Jason Lowe Jason Lowe
YARN-3760 FSDataOutputStream leak in AggregatedLogFormat.LogWriter.close() Critical nodemanager Daryn Sharp Haibo Chen
YARN-5994 TestCapacityScheduler.testAMLimitUsage fails intermittently Major . Eric Badger Eric Badger
YARN-6480 Timeout is too aggressive for TestAMRestart.testPreemptedAMRestartOnRMRestart Major . Eric Badger Eric Badger
HADOOP-14311 Add python2.7-dev to Dockerfile Major . Allen Wittenauer Allen Wittenauer
YARN-6304 Skip rm.transitionToActive call to RM if RM is already active. Major resourcemanager Rohith Sharma K S Rohith Sharma K S
HDFS-11615 FSNamesystemLock metrics can be inaccurate due to millisecond precision Major hdfs Erik Krogen Erik Krogen
HADOOP-14318 Remove non-existent setfattr command option from FileSystemShell.md Minor documentation Doris Gu Doris Gu
HADOOP-14315 Python example in the rack awareness document doesn’t work due to bad indentation Minor documentation Kengo Seki Kengo Seki
HDFS-11689 New exception thrown by DFSClient#isHDFSEncryptionEnabled broke hacky hive code Major . Yongjun Zhang Yongjun Zhang
HDFS-11691 Add a proper scheme to the datanode links in NN web UI Major . Kihwal Lee Kihwal Lee
HADOOP-14341 Support multi-line value for ssl.server.exclude.cipher.list Major . John Zhuge John Zhuge
YARN-5617 AMs only intended to run one attempt can be run more than once Major resourcemanager Jason Lowe Jason Lowe
HADOOP-14346 CryptoOutputStream throws IOException on flush() if stream is closed Major . Pierre Lacave Pierre Lacave
HDFS-11709 StandbyCheckpointer should handle an non-existing legacyOivImageDir gracefully Critical ha, namenode Zhe Zhang Erik Krogen
YARN-5894 fixed license warning caused by de.ruedigermoeller:fst:jar:2.24 Blocker yarn Haibo Chen Haibo Chen
HADOOP-14320 TestIPC.testIpcWithReaderQueuing fails intermittently Major . Eric Badger Eric Badger
YARN-6536 TestAMRMClient.testAMRMClientWithSaslEncryption fails intermittently Major . Eric Badger Jason Lowe
HDFS-11609 Some blocks can be permanently lost if nodes are decommissioned while dead Blocker namenode Kihwal Lee Kihwal Lee
HDFS-8498 Blocks can be committed with wrong size Critical hdfs-client Daryn Sharp Jing Zhao
HDFS-11714 Newly added NN storage directory won’t get initialized and cause space exhaustion Critical . Kihwal Lee Kihwal Lee
HADOOP-14371 License error in TestLoadBalancingKMSClientProvider.java Major . hu xiaodong hu xiaodong
HADOOP-14369 NetworkTopology calls expensive toString() when logging Major . Íñigo Goiri Íñigo Goiri
HADOOP-14306 TestLocalFileSystem tests have very low timeouts Major . Eric Badger Eric Badger
HADOOP-14372 TestSymlinkLocalFS timeouts are too low Major . Eric Badger Eric Badger
HADOOP-14207 “dfsadmin -refreshCallQueue” fails with DecayRpcScheduler Blocker rpc-server Surendra Singh Lilhore Surendra Singh Lilhore
HDFS-11702 Remove indefinite caching of key provider uri in DFSClient Major hdfs-client Rushabh S Shah Rushabh S Shah
HADOOP-14374 License error in GridmixTestUtils.java Major . lixinglong lixinglong
HADOOP-14100 Upgrade Jsch jar to latest version to fix vulnerability in old versions Critical . Vinayakumar B Vinayakumar B
HADOOP-14377 Increase Common test timeouts from 1 second to 10 seconds Major . Eric Badger Eric Badger
HADOOP-14373 License error In org.apache.hadoop.metrics2.util.Servers Major . hu xiaodong hu xiaodong
YARN-6552 Increase YARN test timeouts from 1 second to 10 seconds Major . Eric Badger Eric Badger
MAPREDUCE-6882 Increase MapReduce test timeouts from 1 second to 10 seconds Major . Eric Badger Eric Badger
HADOOP-14405 Fix performance regression due to incorrect use of DataChecksum Major native, performance LiXin Ge LiXin Ge
HDFS-11745 Increase HDFS test timeouts from 1 second to 10 seconds Major . Eric Badger Eric Badger
HDFS-11755 Underconstruction blocks can be considered missing Major . Nathan Roberts Nathan Roberts
YARN-5543 ResourceManager SchedulingMonitor could potentially terminate the preemption checker thread Major capacityscheduler, resourcemanager Min Shen Min Shen
HDFS-11674 reserveSpaceForReplicas is not released if append request failed due to mirror down and replica recovered Critical datanode Vinayakumar B Vinayakumar B
HADOOP-14376 Memory leak when reading a compressed file using the native library Major common, io Eli Acherkan Eli Acherkan
HDFS-11818 TestBlockManager.testSufficientlyReplBlocksUsesNewRack fails intermittently Major . Eric Badger Nathan Roberts
YARN-6598 History server getApplicationReport NPE when fetching report for pre-2.8 job Blocker timelineserver Jason Lowe Jason Lowe
YARN-6603 NPE in RMAppsBlock Major resourcemanager Jason Lowe Jason Lowe
HDFS-11833 HDFS architecture documentation describes outdated placement policy Minor . dud Chen Liang
HADOOP-14412 HostsFileReader#getHostDetails is very expensive on large clusters Major util Jason Lowe Jason Lowe
YARN-6577 Remove unused ContainerLocalization classes Minor nodemanager ZhangBing Lin ZhangBing Lin
YARN-6618 TestNMLeveldbStateStoreService#testCompactionCycle can fail if compaction occurs more than once Minor test Jason Lowe Jason Lowe
HDFS-11849 JournalNode startup failure exception should be logged in log file Major journal-node Surendra Singh Lilhore Surendra Singh Lilhore
HDFS-11864 Document Metrics to track usage of memory for writes Major documentation Brahma Reddy Battula Yiqun Lin
YARN-6615 AmIpFilter drops query parameters on redirect Major . Wilfred Spiegelenburg Wilfred Spiegelenburg
HADOOP-14449 The ASF Header in ComparableVersion.java and SSLHostnameVerifier.java is not correct Minor common, documentation ZhangBing Lin ZhangBing Lin
HADOOP-14166 Reset the DecayRpcScheduler AvgResponseTime metric to zero when queue is not used Major common Surendra Singh Lilhore Surendra Singh Lilhore
HDFS-11661 GetContentSummary uses excessive amounts of memory Blocker namenode Nathan Roberts Wei-Chiu Chuang
YARN-6141 ppc64le on Linux doesn’t trigger __linux get_executable codepath Major nodemanager Sonia Garudi Ayappan
HDFS-11445 FSCK shows overall health status as corrupt even one replica is corrupt Critical . Brahma Reddy Battula Brahma Reddy Battula
YARN-6643 TestRMFailover fails rarely due to port conflict Major test Robert Kanter Robert Kanter
HDFS-11817 A faulty node can cause a lease leak and NPE on accessing data Critical . Kihwal Lee Kihwal Lee
YARN-6641 Non-public resource localization on a bad disk causes subsequent containers failure Major . Kuhu Shukla Kuhu Shukla
HDFS-11078 Fix NPE in LazyPersistFileScrubber Major . Íñigo Goiri Íñigo Goiri
HADOOP-14464 hadoop-aws doc header warning #5 line wrapped Trivial documentation, fs/s3 John Zhuge John Zhuge
HDFS-5042 Completed files lost after power failure Critical . Dave Latham Vinayakumar B
YARN-6649 RollingLevelDBTimelineServer throws RuntimeException if object decoding ever fails runtime exception Critical . Jonathan Eagles Jonathan Eagles
HDFS-11893 Fix TestDFSShell.testMoveWithTargetPortEmpty failure. Major test Konstantin Shvachko Brahma Reddy Battula
HDFS-11741 Long running balancer may fail due to expired DataEncryptionKey Major balancer & mover Wei-Chiu Chuang Wei-Chiu Chuang
HDFS-11856 Ability to re-add Upgrading Nodes (remote) to pipeline for future pipeline updates Major hdfs-client, rolling upgrades Vinayakumar B Vinayakumar B
HADOOP-14474 Use OpenJDK 7 instead of Oracle JDK 7 to avoid oracle-java7-installer failures Major build Akira Ajisaka Akira Ajisaka
HDFS-10816 TestComputeInvalidateWork#testDatanodeReRegistration fails due to race between test and replication monitor Major . Eric Badger Eric Badger
HDFS-11932 BPServiceActor thread name is not correctly set Major hdfs Chen Liang Chen Liang
HDFS-11708 Positional read will fail if replicas moved to different DNs after stream is opened Critical hdfs-client Vinayakumar B Vinayakumar B
HDFS-11711 DN should not delete the block On “Too many open files” Exception Critical datanode Brahma Reddy Battula Brahma Reddy Battula
MAPREDUCE-6676 NNBench should Throw IOException when rename and delete fails Major . Brahma Reddy Battula Brahma Reddy Battula
HADOOP-14208 Fix typo in the top page in branch-2.8 Trivial common, documentation Akira Ajisaka Wenxin He
HDFS-11945 Internal lease recovery may not be retried for a long time Major namenode Kihwal Lee Kihwal Lee
HADOOP-14511 WritableRpcEngine.Invocation#toString NPE on null parameters Minor ipc John Zhuge John Zhuge
HADOOP-14512 WASB atomic rename should not throw exception if the file is neither in src nor in dst when doing the rename Major fs/azure Duo Xu Duo Xu
YARN-6585 RM fails to start when upgrading from 2.7 to 2.8 for clusters with node labels. Blocker . Eric Payne Sunil G
HDFS-11967 TestJMXGet fails occasionally Major . Arpit Agarwal Arpit Agarwal
YARN-6719 Fix findbugs warnings in SLSCapacityScheduler.java Major . Akira Ajisaka Akira Ajisaka
HADOOP-14540 Replace MRv1 specific terms in HostsFileReader Minor documentation Akira Ajisaka hu xiaodong
HDFS-11995 HDFS Architecture documentation incorrectly describes writing to a local temporary file. Minor documentation Chris Nauroth Nanda kumar
HDFS-11736 OIV tests should not write outside ‘target’ directory. Major . Konstantin Shvachko Yiqun Lin
YARN-6713 Fix dead link in the Javadoc of FairSchedulerEventLog.java Minor documentation Akira Ajisaka Weiwei Yang
HADOOP-14533 Size of args cannot be less than zero in TraceAdmin#run as its linkedlist Trivial common, tracing Weisen Han Weisen Han
HDFS-11960 Successfully closed files can stay under-replicated. Critical . Kihwal Lee Kihwal Lee
HADOOP-14146 KerberosAuthenticationHandler should authenticate with SPN in AP-REQ Major security Daryn Sharp Daryn Sharp
YARN-6467 CSQueueMetrics needs to update the current metrics for default partition only Major capacity scheduler Naganarasimha G R Manikandan R
HADOOP-14024 KMS JMX endpoint throws ClassNotFoundException Critical kms Andrew Wang John Zhuge
YARN-6749 TestAppSchedulingInfo.testPriorityAccounting fails consistently Major . Eric Badger Naganarasimha G R
MAPREDUCE-6905 Fix meaningless operations in TestDFSIO in some situation. Major tools/rumen LiXin Ge LiXin Ge
MAPREDUCE-6909 LocalJobRunner fails when run on a node from multiple users Blocker client Jason Lowe Jason Lowe
HADOOP-13414 Hide Jetty Server version header in HTTP responses Major security Vinayakumar B Surendra Singh Lilhore
HDFS-12089 Fix ambiguous NN retry log message Major webhdfs Eric Badger Eric Badger
MAPREDUCE-6911 TestMapreduceConfigFields.testCompareXmlAgainstConfigurationClass fails consistently Major . Eric Badger Eric Badger
YARN-6708 Nodemanager container crash after ext3 folder limit Critical . Bibin A Chundatt Bibin A Chundatt
HADOOP-14563 LoadBalancingKMSClientProvider#warmUpEncryptedKeys swallows IOException Major . Rushabh S Shah Rushabh S Shah
MAPREDUCE-6246 DBOutputFormat.java appending extra semicolon to query which is incompatible with DB2 Major mrv1, mrv2 ramtin Gergely Novák
YARN-6428 Queue AM limit is not honored in CS always Major . Bibin A Chundatt Bibin A Chundatt
YARN-6770 [Docs] A small mistake in the example of TimelineClient Trivial docs Jinjiang Ling Jinjiang Ling
HADOOP-10829 Iteration on CredentialProviderFactory.serviceLoader is thread-unsafe Major security Benoy Antony Benoy Antony
YARN-6809 Fix typo in ResourceManagerHA.md Trivial documentation Akira Ajisaka Yeliang Cang
MAPREDUCE-5621 mr-jobhistory-daemon.sh doesn’t have to execute mkdir and chown all the time Minor jobhistoryserver Shinichi Yamashita Shinichi Yamashita
YARN-6797 TimelineWriter does not fully consume the POST response Major timelineclient Jason Lowe Jason Lowe
HDFS-11502 Datanode UI should display hostname based on JMX bean instead of window.location.hostname Major hdfs Jeffrey E Rodriguez Jeffrey E Rodriguez
HADOOP-14646 FileContextMainOperationsBaseTest#testListStatusFilterWithSomeMatches never runs Minor test Andras Bokor Andras Bokor
MAPREDUCE-6697 Concurrent task limits should only be applied when necessary Major mrv2 Jason Lowe Nathan Roberts
YARN-6654 RollingLevelDBTimelineStore backwards incompatible after fst upgrade Blocker . Jonathan Eagles Jonathan Eagles
YARN-6805 NPE in LinuxContainerExecutor due to null PrivilegedOperationException exit code Major nodemanager Jason Lowe Jason Lowe
YARN-3260 AM attempt fail to register before RM processes launch event Critical resourcemanager Jason Lowe Bibin A Chundatt
HDFS-12140 Remove BPOfferService lock contention to get block pool id Critical datanode Daryn Sharp Daryn Sharp
HDFS-12112 TestBlockManager#testBlockManagerMachinesArray sometimes fails with NPE Minor . Wei-Chiu Chuang Wei-Chiu Chuang
MAPREDUCE-6910 MapReduceTrackingUriPlugin can not return the right URI of history server with HTTPS Major jobhistoryserver Lantao Jin Lantao Jin
HDFS-12158 Secondary Namenode’s web interface lack configs for X-FRAME-OPTIONS protection Major namenode Mukul Kumar Singh Mukul Kumar Singh
YARN-6837 Null LocalResource visibility or resource type can crash the nodemanager Major . Jinjiang Ling Jinjiang Ling
HDFS-11472 Fix inconsistent replica size after a data pipeline failure Critical datanode Wei-Chiu Chuang Erik Krogen
HDFS-12177 NameNode exits due to setting BlockPlacementPolicy loglevel to Debug Major block placement Jiandan Yang Jiandan Yang
HDFS-11742 Improve balancer usability after HDFS-8818 Blocker . Kihwal Lee Kihwal Lee
HDFS-11896 Non-dfsUsed will be doubled on dead node re-registration Blocker . Brahma Reddy Battula Brahma Reddy Battula
YARN-5728 TestMiniYarnClusterNodeUtilization.testUpdateNodeUtilization timeout Major test Akira Ajisaka Akira Ajisaka
YARN-6628 Unexpected jackson-core-2.2.3 dependency introduced Blocker timelineserver Jason Lowe Jonathan Eagles
YARN-5731 Preemption calculation is not accurate when reserved containers are present in queue. Major capacity scheduler Sunil G Wangda Tan
HADOOP-14683 FileStatus.compareTo binary compatible issue Blocker . Sergey Shelukhin Akira Ajisaka
YARN-6872 Ensure apps could run given NodeLabels are disabled post RM switchover/restart Major resourcemanager Sunil G Sunil G
YARN-6846 Nodemanager can fail to fully delete application local directories when applications are killed Critical nodemanager Jason Lowe Jason Lowe
MAPREDUCE-6927 MR job should only set tracking url if history was successfully written Major . Eric Badger Eric Badger
YARN-6890 If UI is not secured, we allow user to kill other users’ job even yarn cluster is secured. Critical . Sumana Sathish Junping Du
HDFS-10326 Disable setting tcp socket send/receive buffers for write pipelines Major datanode, hdfs Daryn Sharp Daryn Sharp
HDFS-12157 Do fsyncDirectory(..) outside of FSDataset lock Critical datanode Vinayakumar B Vinayakumar B
HDFS-12278 LeaseManager operations are inefficient in 2.8. Blocker namenode Rushabh S Shah Rushabh S Shah
YARN-6987 Log app attempt during InvalidStateTransition Major . Jonathan Eagles Jonathan Eagles
YARN-7020 TestAMRMProxy#testAMRMProxyTokenRenewal is flakey Major . Robert Kanter Robert Kanter
YARN-2416 InvalidStateTransitonException in ResourceManager if AMLauncher does not receive response for startContainers() call in time Critical resourcemanager Jian Fang Jonathan Eagles
YARN-7048 Fix tests faking kerberos to explicitly set ugi auth type Major yarn Daryn Sharp Daryn Sharp
HADOOP-14687 AuthenticatedURL will reuse bad/expired session cookies Critical common Daryn Sharp Daryn Sharp
YARN-6640 AM heartbeat stuck when responseId overflows MAX_INT Blocker . Botong Huang Botong Huang
HDFS-12319 DirectoryScanner will throw IllegalStateException when Multiple BP’s are present Blocker . Brahma Reddy Battula Brahma Reddy Battula
HDFS-12299 Race Between update pipeline and DN Re-Registration Critical . Brahma Reddy Battula Brahma Reddy Battula
YARN-7052 RM SchedulingMonitor gives no indication why the spawned thread crashed. Critical yarn Eric Payne Eric Payne
YARN-7087 NM failed to perform log aggregation due to absent container Blocker log-aggregation Jason Lowe Jason Lowe
YARN-7051 Avoid concurrent modification exception in FifoIntraQueuePreemptionPlugin Critical capacity scheduler, scheduler preemption, yarn Eric Payne Eric Payne
HDFS-12364 [branch-2.8.2] Fix the Compile Error after HDFS-12299 Blocker hdfs Jiandan Yang Jiandan Yang
YARN-7112 TestAMRMProxy is failing with invalid request Major . Jason Lowe Jason Lowe
YARN-7076 yarn application -list -appTypes <appType> is not working Blocker . Jian He Jian He
MAPREDUCE-6641 TestTaskAttempt fails in trunk Major test Tsuyoshi Ozawa Haibo Chen
YARN-7083 Log aggregation deletes/renames while file is open Critical nodemanager Daryn Sharp Jason Lowe
HADOOP-14814 Fix incompatible API change on FsServerDefaults to HADOOP-14104 Blocker . Junping Du Junping Du
YARN-7023 Incorrect ReservationId.compareTo() implementation Minor reservation system Oleg Danilov Oleg Danilov
HADOOP-14842 Hadoop 2.8.2 release build process get stuck due to java issue Blocker build Junping Du Junping Du
YARN-5195 RM intermittently crashed with NPE while handling APP_ATTEMPT_REMOVED event when async-scheduling enabled in CapacityScheduler Major resourcemanager Karam Singh sandflee
YARN-7034 DefaultLinuxContainerRuntime and DockerLinuxContainerRuntime sends client environment variables to container-executor Blocker nodemanager Miklos Szegedi Miklos Szegedi
YARN-7249 Fix CapacityScheduler NPE issue when a container preempted while the node is being removed Blocker . Wangda Tan Wangda Tan
YARN-7325 Remove unused container variable in DockerLinuxContainerRuntime Minor nodemanager Shane Kumpf Shane Kumpf
YARN-7246 Fix the default docker binary path Blocker nodemanager Shane Kumpf Shane Kumpf
YARN-7333 container-executor fails to remove entries from a directory that is not writable or executable Critical . Jason Lowe Jason Lowe
YARN-7230 Document DockerContainerRuntime for branch-2.8 with proper scope and claim as an experimental feature Blocker documentation Junping Du Shane Kumpf
HADOOP-14958 CLONE - Fix source-level compatibility after HADOOP-11252 Blocker . Junping Du Junping Du

TESTS:

JIRA Summary Priority Component Reporter Contributor
HDFS-9300 TestDirectoryScanner.testThrottle() is still a little flakey Major balancer & mover, test Daniel Templeton Daniel Templeton
HADOOP-13178 TestShellBasedIdMapping.testStaticMapUpdate doesn’t work on OS X Major test Allen Wittenauer Kai Sasaki
YARN-5343 TestContinuousScheduling#testSortedNodes fails intermittently Minor . sandflee Yufei Gu
MAPREDUCE-6831 Flaky test TestJobImpl.testKilledDuringKillAbort Major mrv2 Peter Bacsko Peter Bacsko
HDFS-11290 TestFSNameSystemMBean should wait until JMX cache is cleared Major test Akira Ajisaka Erik Krogen
YARN-5349 TestWorkPreservingRMRestart#testUAMRecoveryOnRMWorkPreservingRestart fail intermittently Minor . sandflee Jason Lowe

SUB-TASKS:

JIRA Summary Priority Component Reporter Contributor
HDFS-9754 Avoid unnecessary getBlockCollection calls in BlockManager Major namenode Jing Zhao Jing Zhao
HADOOP-14032 Reduce fair call queue priority inversion Major ipc Daryn Sharp Daryn Sharp
HADOOP-14034 Allow ipc layer exceptions to selectively close connections Major ipc Daryn Sharp Daryn Sharp
HADOOP-14033 Reduce fair call queue lock contention Major ipc Daryn Sharp Daryn Sharp
HADOOP-14135 Remove URI parameter in AWSCredentialProvider constructors Major fs/s3 Mingliang Liu Mingliang Liu
HADOOP-14196 Azure Data Lake doc is missing required config entry Major fs/adl Atul Sikaria Atul Sikaria
HADOOP-14197 Fix ADLS doc for credential provider Major documentation, fs/adl John Zhuge John Zhuge
HADOOP-14230 TestAdlFileSystemContractLive fails to clean up Minor fs/adl, test John Zhuge John Zhuge
HADOOP-14038 Rename ADLS credential properties Minor fs/adl John Zhuge John Zhuge
HADOOP-14321 Explicitly exclude S3A root dir ITests from parallel runs Minor fs/s3, test Steve Loughran Steve Loughran
HADOOP-14241 Add ADLS sensitive config keys to default list Minor fs, fs/adl, security John Zhuge John Zhuge
HADOOP-14349 Rename ADLS CONTRACT_ENABLE_KEY Minor fs/adl Mingliang Liu Mingliang Liu
HDFS-9005 Provide configuration support for upgrade domain Major . Ming Ma Ming Ma
HDFS-9016 Display upgrade domain information in fsck Major . Ming Ma Ming Ma
HDFS-9922 Upgrade Domain placement policy status marks a good block in violation when there are decommissioned nodes Minor . Chris Trezzo Chris Trezzo
HADOOP-14035 Reduce fair call queue backoff’s impact on clients Major ipc Daryn Sharp Daryn Sharp
YARN-6682 Improve performance of AssignmentInformation datastructures Major . Daryn Sharp Daryn Sharp
YARN-6680 Avoid locking overhead for NO_LABEL lookups Major resourcemanager Daryn Sharp Daryn Sharp
YARN-6681 Eliminate double-copy of child queues in canAssignToThisQueue Major resourcemanager Daryn Sharp Daryn Sharp
YARN-2113 Add cross-user preemption within CapacityScheduler’s leaf-queue Major capacity scheduler Vinod Kumar Vavilapalli Sunil G
YARN-6775 CapacityScheduler: Improvements to assignContainers, avoid unnecessary canAssignToUser/Queue calls Major capacityscheduler Nathan Roberts Nathan Roberts
YARN-6988 container-executor fails for docker when command length > 4096 B Major yarn Eric Badger Eric Badger
HDFS-12473 Change hosts JSON file format Major . Ming Ma Ming Ma

OTHER:

JIRA Summary Priority Component Reporter Contributor
HADOOP-14344 Revert HADOOP-13606 swift FS to add a service load metadata file Major . John Zhuge John Zhuge
HDFS-11717 Add unit test for HDFS-11709 StandbyCheckpointer should handle non-existing legacyOivImageDir gracefully Minor ha, namenode Erik Krogen Erik Krogen