Project: Apache Hadoop (App Definition and Development / Database)
File: CHANGELOG.3.0.4.md

<! --> | JIRA | Summary | Priority | Component | Reporter | Contributor | |:- |:- | : |:- |:- |:- | | | HDFS Block Placement - Ignore Locality for First Block Replica | Minor | block placement, hdfs-client | BELUGA BEHR | BELUGA BEHR | | JIRA | Summary | Priority | Component | Reporter | Contributor | |:- |:- | : |:- |:- |:- | | | Checkstyle version is not compatible with IDEA's checkstyle plugin | Major | . | Andras Bokor | Andras Bokor | | | Add checkOperation(WRITE) checks in FSNamesystem | Major | ha, namenode | Erik Krogen | Chao Sun | | | BlockPlacementPolicyDefault.chooseTargetInOrder Not Checking Return Value for NULL | Minor | namenode | BELUGA BEHR | Zsolt Venczel | | | Add more test coverage for contentSummary for snapshottable path | Major | namenode, test | Wei-Chiu Chuang | Wei-Chiu Chuang | | | Performance severe drop when running RawErasureCoderBenchmark with NativeRSRawErasureCoder | Major | . | Sammi Chen | Sammi Chen | | | Make dfs.client.failover.random.order a per nameservice configuration | Major | federation | Ekanth Sethuramalingam | Ekanth Sethuramalingam | | | Improve data locality documentation for Capacity Scheduler | Major | . | Weiwei Yang | Weiwei Yang | | | Add metrics for edit log tailing | Major | metrics | Chao Sun | Chao Sun | | | Add overall metrics for FSNamesystemLock | Major | hdfs, namenode | Lukas Majercak | Lukas Majercak | | | StorageInfoDefragmenter floods log when compacting StorageInfo TreeSet | Minor | . | Yiqun Lin | Bharat Viswanadham | | | Avoid allocation of CorruptedBlocks hashmap when no corrupted blocks are hit | Major | performance | Todd Lipcon | Todd Lipcon | | | Improve JIT performance for Configuration parsing | Minor | conf, performance | Todd Lipcon | Todd Lipcon | | | Fix TestNameNodePrunesMissingStorages test failures on Windows | Major | hdfs, namenode, test | Lukas Majercak | Lukas Majercak | | | BlockReaderRemote.read() logging improvement | Minor | hdfs-client | Gergo Repas | Gergo Repas | | | Docs around dfs.image.transfer.timeout are misleading | Major | . | Kitti Nanasi | Kitti Nanasi | | | DataChecksum calculate checksum is contented on hashtable synchronization | Major | common | Prasanth Jayachandran | Prasanth Jayachandran | | | Retry KMS calls when SSLHandshakeException occurs | Major | common, kms | Kitti Nanasi | Kitti Nanasi | | | Improve exception when tfile fails to load LzoCodec | Major | . | Gera Shegalov | Gera Shegalov | | | make DEFAULT\MAX\CORRUPT\FILEBLOCKS\RETURNED configurable | Minor | hdfs | Lantao Jin | Lantao Jin | | | Log full stack trace if DiskBalancer exits with an unhandled exception | Minor | diskbalancer | Stephen O'Donnell | Gabor Bota | | | Improve ATSv2 client logging in RM and NM publisher | Major | . | Rohith Sharma K S | Abhishek Modi | | | Disk Balancer should not fail if volume usage is greater than capacity | Minor | diskbalancer | Stephen O'Donnell | Stephen O'Donnell | | | Replace the deprecated zk-address property in the HA config example in ResourceManagerHA.md | Minor | yarn | Antal Blint Steinbach | Antal Blint Steinbach | | | Remove super user privilege requirement for

| Minor | namenode | Chao Sun | Chao Sun | | | Expose mutable-conf scheduler's configuration in RM /scheduler-conf endpoint | Major | resourcemanager | Anna Savarin | Weiwei Yang | | | Exit NameNode if dangling child inode is detected when saving FsImage | Major | hdfs, namenode | Siyao Meng | Siyao Meng | | | RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache | Major | hdfs | Fei Hui | Fei Hui | | | Make block increment deletion number configurable | Major | . | Yiqun Lin | Ryan Wu | | | TestRMEmbeddedElector#testCallbackSynchronization is flakey | Major | test | Robert Kanter | Robert Kanter | | JIRA | Summary | Priority | Component | Reporter | Contributor | |:- |:- | : |:- |:- |:- | | | StoragePolicyAdmin should support schema based path | Major | namenode | Surendra Singh Lilhore | Surendra Singh Lilhore | | | [Atsv2] Race condition in NM while publishing events if second attempt is launched on the same node | Critical | . | Rohith Sharma K S | Rohith Sharma K S | | | YARN Federation used Mysql as state store throw exception, Unknown column 'homeSubCluster' in 'field list' | Blocker | federation | Yiran Wu | Yiran Wu | | | Cross-Site Scripting vulnerability in HttpServer2 | Major | . | Haibo Yan | Haibo Yan | | | Volume reference can't be released and may lead to deadlock when DataXceiver does a check volume | Critical | datanode | liaoyuxiangqin | Zsolt Venczel | | | cgroup file leak in NM | Major | nodemanager | Hu Ziqian | Hu Ziqian | | | "guarded" is misspelled as "gaurded" in FSPermissionChecker.java | Trivial | documentation | Jianchao Jia | Jianchao Jia | | | Fix TestHistoryViewerPrinter on windows due to a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola | | | FsUrlConnection does not handle paths with spaces | Major | fs | Joseph Fourny | Zsolt Venczel | | | [oiv] ls will fail in secure cluster | Major | . | Brahma Reddy Battula | Wei-Chiu Chuang | | | Exclude containermanager.linux test classes on Windows | Major | . | Giovanni Matteo Fumarola | Jason Lowe | | | Refactor ConfiguredFailoverProxyProvider to make inheritance easier | Minor | hdfs-client | Chao Sun | Chao Sun | | | can't renew HDFS tokens with only the hdfs client jar | Critical | . | Thomas Graves | Arpit Agarwal | | | Typo: Marking all "datandoes" as stale | Trivial | namenode | Wei-Chiu Chuang | Nanda kumar | | | RM zk-state-store.parent-path ACLs has been changed since HADOOP-14773 | Major | . | Rohith Sharma K S | igo Goiri | | | Timeline event publish need to be async to avoid Dispatcher thread leak in case ATS is down | Blocker | . | Rohith Sharma K S | Rohith Sharma K S | | | TestNameNodeMetrics fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang | | | TestEditLogRace fails on Windows | Minor | test | Zuoming Zhang | Zuoming Zhang | | | hdfs mover -p /path times out after 20 min | Major | balancer & mover | Istvan Fajth | Istvan Fajth | | | Shell command timeout given is in seconds whereas it is taken as millisec while scheduling | Major |

| Bilwa S T | Bilwa S T | | | Cannot create encryption zone after KMS auth token expires | Critical | encryption, kms, namenode | Xiao Chen | Xiao Chen | | | NodeResourceMonitor crashes on bad swapFree value | Major | . | Jim Brennan | Jim Brennan | | | Total #VCores in cluster metrics is wrong when CapacityScheduler reserved some containers | Major | webapp | Tao Yang | Tao Yang | | | Compilation is broken with -Pyarn-ui | Major | webapp | Sunil Govindan | Sunil Govindan | | | [UI2] new ui is not accessible with out internet connection | Blocker | . | Bibin A Chundatt | Bibin A Chundatt | | | Multiple NM heartbeat thread created when a slow NM resync with RM | Major | nodemanager | Botong Huang | Botong Huang | | | Randomize local dirs | Minor | . | Jim Brennan | Jim Brennan | | | Remove HTrace hooks from DFSClient to reduce CPU usage | Major | performance | Todd Lipcon | Todd Lipcon | | | Incorrect message when block is not found | Major | datanode | Wei-Chiu Chuang | Gabor Bota | | | Multiple FileContexts created with the same configuration object should be allowed to have different umask | Critical | . | Vinod Kumar Vavilapalli | Vinod Kumar Vavilapalli | | | NPE when request file descriptors when SC read | Minor | hdfs-client | Gang Xie | Zsolt Venczel | | | yarn.resourcemanager.fail-fast is used inconsistently | Major | resourcemanager | Daniel Templeton | Yuanbo Liu | | | Containers being launched as app tears down can leave containers in NEW state | Major | nodemanager | Jason Lowe | Jason Lowe | | | Occasional "Should be different group" error in TestRefreshUserMappings#testGroupMappingRefresh | Major | security, test | Siyao Meng | Siyao Meng | | | Intermittent failure in TestReencryptionWithKMS | Major | encryption, test | Surendra Singh Lilhore | Xiao Chen | | | Fix broken links to RBF documentation | Minor | documentation | jwhitter | Gabor Bota | | | container-executor can crash with SIGPIPE after nodemanager restart | Major | . | Jim Brennan | Jim Brennan | | | when moving app, activeUsers is increased, even though app does not have outstanding request | Major | . | kyungwan nam | | | | Occasional "All datanodes are bad" error in TestLargeBlock#testLargeBlockSize | Major | . | Wei-Chiu Chuang | Siyao Meng | | | Hadoop Docker Image Pip Install Fails | Critical | . | Jack Bearden | Jack Bearden | | | TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails | Major | . | Kihwal Lee | Weiwei Yang | | | AllocationRespose proto setNMToken initBuilder not done | Major | . | Bibin A Chundatt | Bilwa S T | | | TestContainerResizing.testIncreaseContainerUnreservedWhenApplicationCompleted fails due to multiple container fail events | Major | capacityscheduler | Haibo Chen | Weiwei Yang | | | Fix the broken anchor in SLS site-doc | Minor | documentation | Weiwei Yang | Weiwei Yang | | | CapacityScheduler: applications could get starved because computation of #activeUsers considers pending apps | Critical | capacity scheduler, capacityscheduler | Karam Singh | Manikandan R | | | Fix javadoc for FSDirMkdirOp#createParentDirectories | Minor | documentation | Lokesh Jain | Lokesh Jain | | | Update federation documentation of Nodemanager configurations | Minor | . | Bibin A Chundatt | Bibin A Chundatt | | | NM recovery level db not cleaned up properly on container finish | Critical | . | Bibin A Chundatt | Bibin A Chundatt | | | LocalFs#listLocatedStatus does not filter out hidden

files | Minor | fs | Erik Krogen | Erik Krogen | | | Potential thread leak in ActivitiesManager | Major | . | Rohith Sharma K S | Rohith Sharma K S | | | NodeManager metrics may return wrong negative values when NM restart | Major | . | Yang Wang | Szilard Nemeth | | | EC: Display erasure coding policy for sub-directories is not working | Major | erasure-coding | Souryakanta Dwivedy | Ayush Saxena | | | Race condition in NM container launched after done | Major | . | Yang Wang | Pradeep Ambati | | | KMS Accept Queue Size default changed from 500 to 128 in Hadoop 3.x | Major | kms | Wei-Chiu Chuang | Wei-Chiu Chuang | | | fsck -list-corruptfileblocks has infinite loop if user is not privileged. | Major | tools | Wei-Chiu Chuang | Yuen-Kuei Hsueh | | | DatanodeManager should throw exception if it has BlockRecoveryCommand but the block is not under construction | Major | namenode | Wei-Chiu Chuang | chencan | | | Fix few annotation typos in YarnConfiguration | Trivial | . | Sen Zhao | Sen Zhao | | | Still occasional "Should be different group" failure in TestRefreshUserMappings#testGroupMappingRefresh | Major | . | Siyao Meng | Siyao Meng | | | Race between close/recoverLease leads to missing block | Major | . | zhouyingchao | Jinglun | | | Fix NM Collector Service Port issue in YarnConfiguration | Major | ATSv2 | Prabha Manepalli | Prabha Manepalli | | | Statistic for list\located\status is incremented incorrectly by listStatusIterator | Minor | hdfs-client | Todd Lipcon | Antal Mihalyi | | | Test failure TestSSLHttpServer.testExcludedCiphers with TLS\ECDHE\RSA\WITH\AES\128\CBC\_SHA256 cipher suite | Major | common | Gabor Bota | Szilard Nemeth | | | Restore previous state in container-executor after failure | Major | . | Jim Brennan | Jim Brennan | | | [ATSv2] If HBase cluster is down for long time, high chances that NM ContainerManager dispatcher get blocked | Major | . | Rohith Sharma K S | Wangda Tan | | | The OpenSolaris taxonomy link is dead in InterfaceClassification.md | Major | documentation | Daniel Templeton | Rui Gao | | | NPE in localizer hearbeat processing if a container is killed while localizing | Major | . | lujie | lujie | | | Typo correction for yarn configuration in OpportunisticContainers(federation) docs | Major | documentation, federation | Y. SREENIVASULU REDDY | Y. SREENIVASULU REDDY | | | ReencryptionUpdater fails with ConcurrentModificationException during processCheckpoints | Major | encryption | Xiao Chen | Zsolt Venczel | | | Typo in the definition of "stable" in the interface classification | Minor | . | Daniel Templeton | Daniel Templeton | | | FsDatasetImpl should log DiskOutOfSpaceException | Major | hdfs | Fei Hui | Fei Hui | | | KMS log4j is not initialized properly at startup | Major | kms | Kitti Nanasi | Kitti Nanasi | | | Typo in compatibility doc: SHOUD -\> SHOULD | Trivial | . | Daniel Templeton | Laszlo Kollar | | | Handle possible NPEs due to deleted blocks in race condition | Major | namenode | Vinayakumar B | Vinayakumar B | | JIRA | Summary | Priority | Component | Reporter | Contributor | |:- |:- | : |:- |:- |:- | | | Randomize baseDir for MiniJournalCluster in MiniQJMHACluster for TestDFSAdminWithHA | Minor | . | Anbang Hu | Anbang Hu | | | TestReencryptionHandler fails on Windows | Minor |

| Anbang Hu | Anbang Hu | | | Fix TestJavaSerialization for Windows due a mismatch line separator | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola | | | Fix TestNativeCollectorOnlyHandler.testOnCall on Windows because of the path format | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola | | | Randomize baseDir for MiniDFSCluster in TestBlockScanner | Minor | . | Anbang Hu | Anbang Hu | | | Randomize baseDir for MiniDFSCluster in TestReconstructStripedFile and TestReconstructStripedFileWithRandomECPolicy | Minor | . | Anbang Hu | Anbang Hu | | | Randomize baseDir for MiniDFSCluster in TestDFSStripedInputStream and TestDFSStripedInputStreamWithRandomECPolicy | Minor | . | Anbang Hu | Anbang Hu | | | Some Node Manager tests fail on Windows due to improper path/file separator | Minor | . | Anbang Hu | Anbang Hu | | | TestAMSimulator failing with NPE | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola | | | TestBasicDiskValidator fails with NoSuchFileException | Minor | . | igo Goiri | Giovanni Matteo Fumarola | | | TestDFSAdminWithHA times out on Windows | Minor | . | Anbang Hu | Lukas Majercak | | | Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows | Major | test | Xiao Liang | Xiao Liang | | JIRA | Summary | Priority | Component | Reporter | Contributor | |:- |:- | : |:- |:- |:- | | | Fine-grained locking while consuming journal stream. | Major | namenode | Konstantin Shvachko | Konstantin Shvachko | | | RBF: Router fails when threadIndex (in ConnectionPool) wraps around Integer.MIN\_VALUE | Critical | federation | CR Hota | CR Hota | | | Namenode#createFile should be /.reserved/raw/ aware. | Critical | encryption | Rushabh S Shah | Rushabh S Shah | | | RMNodeResourceUpdateEvent update from scheduler can lead to race condition | Major | graceful, resourcemanager, scheduler | Brook Zhou | Wilfred Spiegelenburg | | | Upgrade Azure Storage Sdk version to 7.0.0 and update corresponding code blocks | Minor | fs/azure | Esfandiar Manii | Esfandiar Manii | | | ContainerLaunch#testInvalidEnvVariableSubstitutionType is not supported in Windows | Minor | . | Giovanni Matteo Fumarola | Giovanni Matteo Fumarola | | | Make WASB listStatus messages consistent | Trivial | fs/azure | Esfandiar Manii | Esfandiar Manii | | | TestLocalFileSystem#testFSOutputStreamBuilder fails on Windows | Minor | test | Xiao Liang | Xiao Liang | | | RBF: Fix RBF configuration links | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma | | | RBF: Admin cannot enforce Router enter SafeMode | Major | . | Wei Yan | Chao Sun | | | RBF: Add Web UI configurations and descriptions to RBF document | Minor | documentation | Takanobu Asanuma | Takanobu Asanuma | | | RBF: Router throws NullPointerException due to the invalid initialization of MountTableResolver | Major | . | Takanobu Asanuma | Takanobu Asanuma | | | RBF: Router ID in RouterRpcClient is always null | Major | . | Takanobu Asanuma | Takanobu Asanuma | | | Improve error message for invalid value in fields attribute | Minor | ATSv2 | Charan Hebri | Abhishek Modi | | | Refactor NameNode failover proxy providers | Major | ha, hdfs-client | Konstantin Shvachko | Konstantin Shvachko | | JIRA | Summary | Priority | Component | Reporter | Contributor | |:- |:- | : |:- |:- |:- | | | Update EC documentation about rack fault tolerance | Major | documentation, erasure-coding | Xiao Chen | Kitti Nanasi |