Apache Hadoop Changelog

Release 3.2.2 - 2021-01-03

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-15691	Add PathCapabilities to FS and FC to complement StreamCapabilities	Major	.	Steve Loughran	Steve Loughran
YARN-9760	Support configuring application priorities on a workflow level	Major	.	Jonathan Hung	Varun Saxena
HDFS-14905	Backport HDFS persistent memory read cache support to branch-3.2	Major	caching, datanode	Feilong He	Feilong He
HDFS-12943	Consistent Reads from Standby Node	Major	hdfs	Konstantin Shvachko	Konstantin Shvachko
HADOOP-16790	Add Write Convenience Methods	Minor	.	David Mollitor	David Mollitor
HADOOP-17210	backport HADOOP-15691 PathCapabilities API to branch-3.2	Major	fs, fs/s3	Steve Loughran	Steve Loughran

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
YARN-8750	Refactor TestQueueMetrics	Minor	resourcemanager	Szilard Nemeth	Szilard Nemeth
HADOOP-15849	Upgrade netty version to 3.10.6	Major	.	Xiao Chen	Xiao Chen
HDFS-12946	Add a tool to check rack configuration against EC policies	Major	erasure-coding	Xiao Chen	Kitti Nanasi
HDFS-14113	EC : Add Configuration to restrict UserDefined Policies	Major	erasure-coding	Ayush Saxena	Ayush Saxena
HDFS-14006	Refactor name node to allow different token verification implementations	Major	.	CR Hota	CR Hota
HADOOP-15909	KeyProvider class should implement Closeable	Major	kms	Kuhu Shukla	Kuhu Shukla
HDFS-14061	Check if the cluster topology supports the EC policy before setting, enabling or adding it	Major	erasure-coding, hdfs	Kitti Nanasi	Kitti Nanasi
HDFS-14187	Make warning message more clear when there are not enough data nodes for EC write	Major	erasure-coding	Kitti Nanasi	Kitti Nanasi
HDFS-14125	Use parameterized log format in ECTopologyVerifier	Trivial	erasure-coding	Kitti Nanasi	Kitti Nanasi
HDFS-14188	Make hdfs ec -verifyClusterSetup command accept an erasure coding policy as a parameter	Major	erasure-coding	Kitti Nanasi	Kitti Nanasi
HADOOP-16126	ipc.Client.stop() may sleep too long to wait for all connections	Major	ipc	Tsz-wo Sze	Tsz-wo Sze
HADOOP-15014	KMS should log the IP address of the clients	Major	kms	Zsombor Gegesy	Zsombor Gegesy
HDFS-14460	DFSUtil#getNamenodeWebAddr should return HTTPS address based on policy configured	Major	.	CR Hota	CR Hota
HDFS-14624	When decommissioning a node, log remaining blocks to replicate periodically	Major	namenode	Stephen O'Donnell	Stephen O'Donnell
HDFS-13693	Remove unnecessary search in INodeDirectory.addChild during image loading	Major	namenode	zhouyingchao	Lisheng Sun
HDFS-14313	Get hdfs used space from FsDatasetImpl#volumeMap#ReplicaInfo in memory instead of df/du	Major	datanode, performance	Lisheng Sun	Lisheng Sun
HDFS-14678	Allow triggerBlockReport to a specific namenode	Major	datanode	Leon Gao	Leon Gao
HDFS-14523	Remove excess read lock for NetworkToplogy	Major	.	Wu Weiwei	Wu Weiwei
HDFS-14497	Write lock held by metasave impact following RPC processing	Major	namenode	Xiaoqiao He	Xiaoqiao He
HADOOP-16531	Log more detail for slow RPC	Major	.	Chen Zhang	Chen Zhang
YARN-9764	Print application submission context label in application summary	Major	.	Jonathan Hung	Manoj Kumar
YARN-9824	Fall back to configured queue ordering policy class name	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16069	Support configure ZK_DTSM_ZK_KERBEROS_PRINCIPAL in ZKDelegationTokenSecretManager using principal with Schema /_HOST	Minor	common	luhuachao	luhuachao
YARN-9762	Add submission context label to audit logs	Major	.	Jonathan Hung	Manoj Kumar
HDFS-14850	Optimize FileSystemAccessService#getFileSystemConfiguration	Major	httpfs, performance	Lisheng Sun	Lisheng Sun
HDFS-14192	Track missing DFS operations in Statistics and StorageStatistics	Major	.	Ayush Saxena	Ayush Saxena
YARN-9356	Add more tests to ratio method in TestResourceCalculator	Major	.	Szilard Nemeth	Zoltan Siegl
HADOOP-16643	Update netty4 to the latest 4.1.42	Major	.	Wei-Chiu Chuang	Lisheng Sun
HADOOP-16640	WASB: Override getCanonicalServiceName() to return full url of WASB filesystem	Major	fs/azure	Da Zhou	Da Zhou
HDFS-14915	Move Superuser Check Before Taking Lock For Encryption API	Major	.	Ayush Saxena	Ayush Saxena
HDFS-14921	Remove SuperUser Check in Setting Storage Policy in FileStatus During Listing	Major	.	Ayush Saxena	Ayush Saxena
HDFS-14923	Remove dead code from HealthMonitor	Minor	.	Hui Fei	Hui Fei
YARN-9914	Use separate configs for free disk space checking for full and not-full disks	Minor	yarn	Jim Brennan	Jim Brennan
MAPREDUCE-7208	Tuning TaskRuntimeEstimator	Minor	.	Ahmed Hussein	Ahmed Hussein
HDFS-14942	Change Log Level to debug in JournalNodeSyncer#syncWithJournalAtIndex	Minor	.	Lisheng Sun	Lisheng Sun
HDFS-14979	[Observer Node] Balancer should submit getBlocks to Observer Node when possible	Major	balancer & mover, hdfs	Erik Krogen	Erik Krogen
HADOOP-16705	MBeanInfoBuilder puts unnecessary memory pressure on the system with a debug log	Major	metrics	Lukas Majercak	Lukas Majercak
HADOOP-16712	Config ha.failover-controller.active-standby-elector.zk.op.retries is not in core-default.xml	Trivial	.	Wei-Chiu Chuang	Xieming Li
HDFS-14952	Skip safemode if blockTotal is 0 in new NN	Trivial	namenode	Rajesh Balamohan	Xiaoqiao He
YARN-8842	Expose metrics for custom resource types in QueueMetrics	Major	.	Szilard Nemeth	Szilard Nemeth
YARN-9966	Code duplication in UserGroupMappingPlacementRule	Major	.	Szilard Nemeth	Kevin Su
YARN-9937	Add missing queue configs in RMWebService#CapacitySchedulerQueueInfo	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
HADOOP-16718	Allow disabling Server Name Indication (SNI) for Jetty	Major	.	Siyao Meng	Aravindan Vijayan
HADOOP-16729	Extract version numbers to head of pom.xml	Minor	build	Tamas Penzes	Tamas Penzes
HADOOP-16735	Make it clearer in config default that EnvironmentVariableCredentialsProvider supports AWS_SESSION_TOKEN	Minor	documentation, fs/s3	Mingliang Liu	Mingliang Liu
YARN-10012	Guaranteed and max capacity queue metrics for custom resources	Major	.	Jonathan Hung	Manikandan R
HDFS-15050	Optimize log information when DFSInputStream meet CannotObtainBlockLengthException	Major	dfsclient	Xiaoqiao He	Xiaoqiao He
YARN-10033	TestProportionalCapacityPreemptionPolicy not initializing vcores for effective max resources	Major	capacity scheduler, test	Eric Payne	Eric Payne
YARN-10039	Allow disabling app submission from REST endpoints	Major	.	Jonathan Hung	Jonathan Hung
YARN-9894	CapacitySchedulerPerf test for measuring hundreds of apps in a large number of queues.	Major	capacity scheduler, test	Eric Payne	Eric Payne
HADOOP-16771	Update checkstyle to 8.26 and maven-checkstyle-plugin to 3.1.0	Major	build	Andras Bokor	Andras Bokor
YARN-10009	In Capacity Scheduler, DRC can treat minimum user limit percent as a max when custom resource is defined	Critical	capacity scheduler	Eric Payne	Eric Payne
HDFS-12999	When reach the end of the block group, it may not need to flush all the data packets(flushAllInternals) twice.	Major	erasure-coding, hdfs-client	lufei	lufei
HDFS-15074	DataNode.DataTransfer thread should catch all the expception and log it.	Major	datanode	Surendra Singh Lilhore	Hemanth Boyina
HDFS-14740	Recover data blocks from persistent memory read cache during datanode restarts	Major	caching, datanode	Feilong He	Feilong He
HADOOP-16775	DistCp reuses the same temp file within the task attempt for different files.	Major	tools/distcp	Amir Shenavandeh	Amir Shenavandeh
HDFS-15097	Purge log in KMS and HttpFS	Minor	httpfs, kms	Doris Gu	Doris Gu
HADOOP-16753	Refactor HAAdmin	Major	ha	Akira Ajisaka	Xieming Li
HDFS-14968	Add ability to know datanode staleness	Minor	datanode, logging, namenode	Ahmed Hussein	Ahmed Hussein
YARN-7913	Improve error handling when application recovery fails with exception	Major	resourcemanager	Gergo Repas	Wilfred Spiegelenburg
HDFS-15117	EC: Add getECTopologyResultForPolicies to DistributedFileSystem	Major	.	Ayush Saxena	Ayush Saxena
HDFS-15119	Allow expiration of cached locations in DFSInputStream	Minor	dfsclient	Ahmed Hussein	Ahmed Hussein
MAPREDUCE-7262	MRApp helpers block for long intervals (500ms)	Minor	mr-am	Ahmed Hussein	Ahmed Hussein
MAPREDUCE-7260	Cross origin request support for Job history server web UI	Critical	jobhistoryserver	Adam Antal	Adam Antal
YARN-10084	Allow inheritance of max app lifetime / default app lifetime	Major	capacity scheduler	Eric Payne	Eric Payne
HDFS-12491	Support wildcard in CLASSPATH for libhdfs	Major	libhdfs	John Zhuge	Muhammad Samir Khan
YARN-10116	Expose diagnostics in RMAppManager summary	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16739	Fix native build failure of hadoop-pipes on CentOS 8	Major	tools/pipes	Masatake Iwasaki	Masatake Iwasaki
HADOOP-16847	Test TestGroupsCaching fail if HashSet iterates in a different order	Minor	test	testfixer0	testfixer0
HDFS-14758	Decrease lease hard limit	Minor	.	Eric Payne	Hemanth Boyina
HDFS-15086	Block scheduled counter never get decremet if the block got deleted before replication.	Major	3.1.1	Surendra Singh Lilhore	Hemanth Boyina
HDFS-15174	Optimize ReplicaCachingGetSpaceUsed by reducing unnecessary io operations	Major	.	Lisheng Sun	Lisheng Sun
YARN-9018	Add functionality to AuxiliaryLocalPathHandler to return all locations to read for a given path	Major	.	Kuhu Shukla	Kuhu Shukla
HDFS-14861	Reset LowRedundancyBlocks Iterator periodically	Major	namenode	Stephen O'Donnell	Stephen O'Donnell
HADOOP-16899	Update HdfsDesign.md to reduce ambiguity	Minor	documentation	Akshay Nehe	Akshay Nehe
HADOOP-16772	Extract version numbers to head of pom.xml (addendum)	Major	build	Tamas Penzes	Tamas Penzes
HDFS-15197	[SBN read] Change ObserverRetryOnActiveException log to debug	Minor	hdfs	Chen Liang	Chen Liang
HADOOP-16935	Backport HADOOP-10848. Cleanup calling of sun.security.krb5.Config to branch-3.2	Minor	.	Siyao Meng	Siyao Meng
YARN-10200	Add number of containers to RMAppManager summary	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16952	Add .diff to gitignore	Minor	.	Ayush Saxena	Ayush Saxena
MAPREDUCE-7266	historyContext doesn't need to be a class attribute inside JobHistoryServer	Minor	jobhistoryserver	Siddharth Ahuja	Siddharth Ahuja
YARN-10003	YarnConfigurationStore#checkVersion throws exception that belongs to RMStateStore	Major	.	Szilard Nemeth	Benjamin Teke
YARN-10212	Create separate configuration for max global AM attempts	Major	.	Jonathan Hung	Bilwa S T
YARN-5277	When localizers fail due to resource timestamps being out, provide more diagnostics	Major	nodemanager	Steve Loughran	Siddharth Ahuja
YARN-9995	Code cleanup in TestSchedConfCLI	Minor	.	Szilard Nemeth	Bilwa S T
YARN-9354	Resources should be created with ResourceTypesTestHelper instead of TestUtils	Trivial	.	Szilard Nemeth	Andras Gyori
YARN-10002	Code cleanup and improvements in ConfigurationStoreBaseTest	Minor	.	Szilard Nemeth	Benjamin Teke
YARN-9954	Configurable max application tags and max tag length	Major	.	Jonathan Hung	Bilwa S T
YARN-10001	Add explanation of unimplemented methods in InMemoryConfigurationStore	Major	.	Szilard Nemeth	Siddharth Ahuja
HADOOP-17001	The suffix name of the unified compression class	Major	io	bianqi	bianqi
YARN-9997	Code cleanup in ZKConfigurationStore	Minor	.	Szilard Nemeth	Andras Gyori
YARN-9996	Code cleanup in QueueAdminConfigurationMutationACLPolicy	Major	.	Szilard Nemeth	Siddharth Ahuja
YARN-9998	Code cleanup in LeveldbConfigurationStore	Minor	.	Szilard Nemeth	Benjamin Teke
YARN-9999	TestFSSchedulerConfigurationStore: Extend from ConfigurationStoreBaseTest, general code cleanup	Minor	.	Szilard Nemeth	Benjamin Teke
HDFS-15295	AvailableSpaceBlockPlacementPolicy should use chooseRandomWithStorageTypeTwoTrial() for better performance.	Minor	.	Jinglun	Jinglun
YARN-10189	Code cleanup in LeveldbRMStateStore	Minor	.	Benjamin Teke	Benjamin Teke
HADOOP-16886	Add hadoop.http.idle_timeout.ms to core-default.xml	Major	.	Wei-Chiu Chuang	Lisheng Sun
YARN-10260	Allow transitioning queue from DRAINING to RUNNING state	Major	.	Jonathan Hung	Bilwa S T
HADOOP-17042	Hadoop distcp throws "ERROR: Tools helper ///usr/lib/hadoop/libexec/tools/hadoop-distcp.sh was not found"	Minor	tools/distcp	Aki Tanaka	Aki Tanaka
HADOOP-14698	Make copyFromLocal's -t option available for put as well	Major	.	Andras Bokor	Andras Bokor
YARN-6492	Generate queue metrics for each partition	Major	capacity scheduler	Jonathan Hung	Manikandan R
HADOOP-17047	TODO comments exist in trunk while the related issues are already fixed.	Trivial	.	Rungroj Maipradit	Rungroj Maipradit
HDFS-15406	Improve the speed of Datanode Block Scan	Major	.	Hemanth Boyina	Hemanth Boyina
HADOOP-17090	Increase precommit job timeout from 5 hours to 20 hours	Major	build	Akira Ajisaka	Akira Ajisaka
YARN-10297	TestContinuousScheduling#testFairSchedulerContinuousSchedulingInitTime fails intermittently	Major	.	Jonathan Hung	Jim Brennan
HADOOP-17127	Use RpcMetrics.TIMEUNIT to initialize rpc queueTime and processingTime	Minor	common	Jim Brennan	Jim Brennan
HDFS-15404	ShellCommandFencer should expose info about source	Major	.	Chen Liang	Chen Liang
HADOOP-17147	Dead link in hadoop-kms/index.md.vm	Minor	documentation, kms	Akira Ajisaka	Xieming Li
YARN-10343	Legacy RM UI should include labeled metrics for allocated, total, and reserved resources.	Major	.	Eric Payne	Eric Payne
YARN-1529	Add Localization overhead metrics to NM	Major	nodemanager	Gera Shegalov	Jim Brennan
YARN-10251	Show extended resources on legacy RM UI.	Major	.	Eric Payne	Eric Payne
HADOOP-17159	Make UGI support forceful relogin from keytab ignoring the last login time	Major	security	Sandeep Guggilam	Sandeep Guggilam
YARN-10353	Log vcores used and cumulative cpu in containers monitor	Minor	yarn	Jim Brennan	Jim Brennan
YARN-10369	Make NMTokenSecretManagerInRM sending NMToken for nodeId DEBUG	Minor	yarn	Jim Brennan	Jim Brennan
YARN-10390	LeafQueue: retain user limits cache across assignContainers() calls	Major	capacity scheduler, capacityscheduler	Muhammad Samir Khan	Muhammad Samir Khan
HDFS-15574	Remove unnecessary sort of block list in DirectoryScanner	Major	.	Stephen O'Donnell	Stephen O'Donnell
HDFS-15583	Backport DirectoryScanner improvements HDFS-14476, HDFS-14751 and HDFS-15048 to branch 3.2 and 3.1	Major	datanode	Stephen O'Donnell	Stephen O'Donnell
HDFS-15581	Access Controlled HTTPFS Proxy	Minor	httpfs	Richard	Richard
HDFS-15415	Reduce locking in Datanode DirectoryScanner	Major	datanode	Stephen O'Donnell	Stephen O'Donnell
HADOOP-17287	Support new Instance by non default constructor by ReflectionUtils	Major	.	Baolong Mao	Baolong Mao
YARN-10451	RM (v1) UI NodesPage can NPE when yarn.io/gpu resource type is defined.	Major	.	Eric Payne	Eric Payne
YARN-9667	Container-executor.c duplicates messages to stdout	Major	nodemanager, yarn	Adam Antal	Peter Bacsko
MAPREDUCE-7301	Expose Mini MR Cluster attribute for testing	Minor	test	Swaroopa Kadam	Swaroopa Kadam
HDFS-15567	[SBN Read] HDFS should expose msync() API to allow downstream applications call it explicitly.	Major	ha, hdfs-client	Konstantin Shvachko	Konstantin Shvachko
YARN-10450	Add cpu and memory utilization per node and cluster-wide metrics	Minor	yarn	Jim Brennan	Jim Brennan
YARN-10475	Scale RM-NM heartbeat interval based on node utilization	Minor	yarn	Jim Brennan	Jim Brennan
HDFS-15665	Balancer logging improvement	Major	balancer & mover	Konstantin Shvachko	Konstantin Shvachko
HADOOP-17342	Creating a token identifier should not do kerberos name resolution	Major	common	Jim Brennan	Jim Brennan
YARN-10479	RMProxy should retry on SocketTimeout Exceptions	Major	yarn	Jim Brennan	Jim Brennan
HDFS-15623	Respect configured values of rpc.engine	Major	hdfs	Hector Sandoval Chaverri	Hector Sandoval Chaverri
HDFS-14395	Remove WARN Logging From Interrupts in DataStreamer	Minor	hdfs-client	David Mollitor	David Mollitor
HADOOP-17367	Add InetAddress api to ProxyUsers.authorize	Major	performance, security	Ahmed Hussein	Ahmed Hussein
MAPREDUCE-7304	Enhance the map-reduce Job end notifier to be able to notify the given URL via a custom class	Major	mrv2	Daniel Fritsi	Zoltán Erdmann
MAPREDUCE-7309	Improve performance of reading resource request for mapper/reducers from config	Major	applicationmaster	Wangda Tan	Peter Bacsko
HADOOP-17389	KMS should log full UGI principal	Major	.	Ahmed Hussein	Ahmed Hussein
HDFS-15717	Improve fsck logging	Major	logging, namenode	Ahmed Hussein	Ahmed Hussein
HDFS-15751	Add documentation for msync() API to filesystem.md	Major	documentation	Konstantin Shvachko	Konstantin Shvachko

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-15418	Hadoop KMSAuthenticationFilter needs to use getPropsByPrefix instead of iterator to avoid ConcurrentModificationException	Major	common	Suma Shivaprasad	Suma Shivaprasad
HDFS-14004	TestLeaseRecovery2#testCloseWhileRecoverLease fails intermittently in trunk	Major	.	Ayush Saxena	Ayush Saxena
HDFS-13959	TestUpgradeDomainBlockPlacementPolicy is flaky	Major	.	Ayush Saxena	Ayush Saxena
YARN-8948	PlacementRule interface should be for all YarnSchedulers	Major	.	Bibin Chundatt	Bibin Chundatt
HADOOP-16013	DecayRpcScheduler decay thread should run as a daemon	Major	ipc	Erik Krogen	Erik Krogen
HDFS-14175	EC: Native XOR decoder should reset the output buffer before using it.	Major	ec, hdfs	Surendra Singh Lilhore	Ayush Saxena
HDFS-14202	"dfs.disk.balancer.max.disk.throughputInMBperSec" property is not working as per set value.	Major	diskbalancer	Ranith Sardar	Ranith Sardar
HADOOP-16127	In ipc.Client, put a new connection could happen after stop	Major	ipc	Tsz-wo Sze	Tsz-wo Sze
YARN-4901	QueueMetrics needs to be cleared before MockRM is initialized	Major	scheduler	Daniel Templeton	Peter Bacsko
HADOOP-16161	NetworkTopology#getWeightUsingNetworkLocation return unexpected result	Major	net	Xiaoqiao He	Xiaoqiao He
HDFS-14434	webhdfs that connect secure hdfs should not use user.name parameter	Minor	webhdfs	KWON BYUNGCHANG	KWON BYUNGCHANG
HDFS-14527	Stop all DataNodes may result in NN terminate	Major	namenode	Xiaoqiao He	Xiaoqiao He
HDFS-14494	Move Server logging of StatedId inside receiveRequestState()	Major	.	Konstantin Shvachko	Shweta
HDFS-14599	HDFS-12487 breaks test TestDiskBalancer.testDiskBalancerWithFedClusterWithOneNameServiceEmpty	Major	diskbalancer	Wei-Chiu Chuang	Xiaoqiao He
HDFS-14618	Incorrect synchronization of ArrayList field (ArrayList is thread-unsafe).	Critical	.	Paul Ward	Paul Ward
HDFS-14610	HashMap is not thread safe. Field storageMap is typically synchronized by storageMap. However, in one place, field storageMap is not protected with synchronized.	Critical	.	Paul Ward	Paul Ward
HDFS-14499	Misleading REM_QUOTA value with snapshot and trash feature enabled for a directory	Major	snapshots	Shashikant Banerjee	Shashikant Banerjee
HADOOP-16451	Update jackson-databind to 2.9.9.1	Major	.	Wei-Chiu Chuang	Siyao Meng
HDFS-14647	NPE during secure namenode startup	Major	hdfs	Fengnan Li	Fengnan Li
HADOOP-16461	Regression: FileSystem cache lock parses XML within the lock	Major	fs	Gopal Vijayaraghavan	Gopal Vijayaraghavan
HDFS-14660	[SBN Read] ObserverNameNode should throw StandbyException for requests not from ObserverProxyProvider	Major	.	Chao Sun	Chao Sun
HADOOP-16460	ABFS: fix for Sever Name Indication (SNI)	Major	fs/azure	Thomas Marqardt	Sneha Vijayarajan
HDFS-14569	Result of crypto -listZones is not formatted properly	Major	.	Hemanth Boyina	Hemanth Boyina
HADOOP-12282	Connection thread's name should be updated after address changing is detected	Major	ipc	zhouyingchao	Lisheng Sun
HDFS-14686	HttpFS: HttpFSFileSystem#getErasureCodingPolicy always returns null	Major	httpfs	Siyao Meng	Siyao Meng
HADOOP-15865	ConcurrentModificationException in Configuration.overlay() method	Major	.	Oleksandr Shevchenko	Oleksandr Shevchenko
HADOOP-16487	Update jackson-databind to 2.9.9.2	Critical	.	Siyao Meng	Siyao Meng
HDFS-14759	HDFS cat logs an info message	Major	.	Eric Badger	Eric Badger
HADOOP-16533	Update jackson-databind to 2.9.9.3	Major	.	Akira Ajisaka	Akira Ajisaka
HDFS-14699	Erasure Coding: Storage not considered in live replica when replication streams hard limit reached to threshold	Critical	ec	Zhao Yi Ming	Zhao Yi Ming
YARN-9833	Race condition when DirectoryCollection.checkDirs() runs during container launch	Major	.	Peter Bacsko	Peter Bacsko
YARN-9837	YARN Service fails to fetch status for Stopped apps with bigger spec files	Major	yarn-native-services	Tarun Parimi	Tarun Parimi
YARN-2255	YARN Audit logging not added to log4j.properties	Major	.	Varun Saxena	Aihua Xu
HDFS-14836	FileIoProvider should not increase FileIoErrors metric in datanode volume metric	Minor	.	Aiphago	Aiphago
HADOOP-16582	LocalFileSystem's mkdirs() does not work as expected under viewfs.	Major	.	Kihwal Lee	Kihwal Lee
HADOOP-16581	ValueQueue does not trigger an async refill when number of values falls below watermark	Major	common, kms	Yuval Degani	Yuval Degani
HDFS-14853	NPE in DFSNetworkTopology#chooseRandomWithStorageType() when the excludedNode is not present	Major	.	Ranith Sardar	Ranith Sardar
HDFS-13660	DistCp job fails when new data is appended in the file while the distCp copy job is running	Critical	distcp	Mukund Thakur	Mukund Thakur
HDFS-14808	EC: Improper size values for corrupt ec block in LOG	Major	ec	Harshakiran Reddy	Ayush Saxena
HDFS-14849	Erasure Coding: the internal block is replicated many times when datanode is decommissioning	Major	ec, erasure-coding	HuangTao	HuangTao
YARN-9858	Optimize RMContext getExclusiveEnforcedPartitions	Major	.	Jonathan Hung	Jonathan Hung
HDFS-14492	Snapshot memory leak	Major	snapshots	Wei-Chiu Chuang	Wei-Chiu Chuang
HDFS-14418	Remove redundant super user priveledge checks from namenode.	Major	.	Ayush Saxena	Ayush Saxena
HADOOP-16619	Upgrade jackson and jackson-databind to 2.9.10	Major	.	Siyao Meng	Siyao Meng
HDFS-14637	Namenode may not replicate blocks to meet the policy after enabling upgradeDomain	Major	namenode	Stephen O'Donnell	Stephen O'Donnell
HDFS-14879	Header was wrong in Snapshot web UI	Major	.	Hemanth Boyina	Hemanth Boyina
HDFS-14655	[SBN Read] Namenode crashes if one of The JN is down	Critical	.	Harshakiran Reddy	Ayush Saxena
HDFS-14859	Prevent unnecessary evaluation of costly operation getNumLiveDataNodes when dfs.namenode.safemode.min.datanodes is not zero	Major	hdfs	Srinivasu Majeti	Srinivasu Majeti
YARN-6715	Fix documentation about NodeHealthScriptRunner	Major	documentation, nodemanager	Peter Bacsko	Peter Bacsko
YARN-9552	FairScheduler: NODE_UPDATE can cause NoSuchElementException	Major	fairscheduler	Peter Bacsko	Peter Bacsko
HDFS-14754	Erasure Coding : The number of Under-Replicated Blocks never reduced	Critical	ec	Hemanth Boyina	Hemanth Boyina
HDFS-14245	Class cast error in GetGroups with ObserverReadProxyProvider	Major	.	Shen Yinjie	Erik Krogen
HDFS-14373	EC : Decoding is failing when block group last incomplete cell fall in to AlignedStripe	Critical	ec, hdfs-client	Surendra Singh Lilhore	Surendra Singh Lilhore
HDFS-14509	DN throws InvalidToken due to inequality of password when upgrade NN 2.x to 3.x	Blocker	.	Yuxuan Wang	Yuxuan Wang
HDFS-14886	In NameNode Web UI's Startup Progress page, Loading edits always shows 0 sec	Major	.	Hemanth Boyina	Hemanth Boyina
YARN-8453	Additional Unit tests to verify queue limit and max-limit with multiple resource types	Major	capacity scheduler	Sunil G	Adam Antal
HDFS-14890	Setting permissions on name directory fails on non posix compliant filesystems	Blocker	.	hirik	Siddharth Wagle
HADOOP-16580	Disable retry of FailoverOnNetworkExceptionRetry in case of AccessControlException	Major	common	Adam Antal	Adam Antal
HDFS-14909	DFSNetworkTopology#chooseRandomWithStorageType() should not decrease storage count for excluded node which is already part of excluded scope	Major	namenode	Surendra Singh Lilhore	Surendra Singh Lilhore
HADOOP-16662	Remove unnecessary InnerNode check in NetworkTopology#add()	Minor	.	Lisheng Sun	Lisheng Sun
HDFS-14847	Erasure Coding: Blocks are over-replicated while EC decommissioning	Critical	ec	Hui Fei	Hui Fei
HDFS-14913	Correct the value of available count in DFSNetworkTopology#chooseRandomWithStorageType()	Major	.	Ayush Saxena	Ayush Saxena
YARN-9915	Fix FindBug issue in QueueMetrics	Minor	.	Prabhu Joseph	Prabhu Joseph
HDFS-12749	DN may not send block report to NN after NN restart	Major	datanode	TanYuxin	Xiaoqiao He
HDFS-13901	INode access time is ignored because of race between open and rename	Major	.	Jinglun	Jinglun
HDFS-14910	Rename Snapshot with Pre Descendants Fail With IllegalArgumentException.	Blocker	.	Íñigo Goiri	Wei-Chiu Chuang
HDFS-14308	DFSStripedInputStream curStripeBuf is not freed by unbuffer()	Major	ec	Joe McDonnell	Zhao Yi Ming
HDFS-14931	hdfs crypto commands limit column width	Major	.	Eric Badger	Eric Badger
HADOOP-16669	TestRawLocalFileSystemContract.testPermission fails if no native library	Minor	common, test	Steve Loughran	Steve Loughran
HDFS-14920	Erasure Coding: Decommission may hang If one or more datanodes are out of service during decommission	Major	ec	Hui Fei	Hui Fei
HDFS-13736	BlockPlacementPolicyDefault can not choose favored nodes when 'dfs.namenode.block-placement-policy.default.prefer-local-node' set to false	Major	.	hu xiaodong	hu xiaodong
HDFS-14925	rename operation should check nest snapshot	Major	namenode	Junwang Zhao	Junwang Zhao
YARN-9949	Add missing queue configs for root queue in RMWebService#CapacitySchedulerInfo	Minor	capacity scheduler	Prabhu Joseph	Prabhu Joseph
HDFS-14945	Revise PacketResponder's log.	Minor	datanode	Xudong Cao	Xudong Cao
HDFS-14946	Erasure Coding: Block recovery failed during decommissioning	Major	.	Hui Fei	Hui Fei
HDFS-14384	When lastLocatedBlock token expire, it will take 1~3s second to refetch it.	Major	hdfs-client	Surendra Singh Lilhore	Surendra Singh Lilhore
HDFS-14806	Bootstrap standby may fail if used in-progress tailing	Major	namenode	Chen Liang	Chen Liang
HDFS-14941	Potential editlog race condition can cause corrupted file	Major	namenode	Chen Liang	Chen Liang
HDFS-14958	TestBalancerWithNodeGroup is not using NetworkTopologyWithNodeGroup	Minor	hdfs	Jim Brennan	Jim Brennan
HDFS-14720	DataNode shouldn't report block as bad block if the block length is Long.MAX_VALUE.	Major	datanode	Surendra Singh Lilhore	Hemanth Boyina
HADOOP-16676	Backport HADOOP-16152 to branch-3.2	Major	common	DW	Siyao Meng
HADOOP-16677	Recalculate the remaining timeout millis correctly while throwing an InterupptedException in SocketIOWithTimeout.	Minor	common	Xudong Cao	Xudong Cao
HDFS-14884	Add sanity check that zone key equals feinfo key while setting Xattrs	Major	encryption, hdfs	Mukul Kumar Singh	Mukul Kumar Singh
HADOOP-15097	AbstractContractDeleteTest::testDeleteNonEmptyDirRecursive with misleading path	Minor	fs, test	zhoutai.zt	Xieming Li
HADOOP-16710	testing_azure.md documentation is misleading	Major	fs/azure, test	Andras Bokor	Andras Bokor
YARN-9984	FSPreemptionThread can cause NullPointerException while app is unregistered with containers running on a node	Major	fairscheduler	Wilfred Spiegelenburg	Wilfred Spiegelenburg
YARN-9983	Typo in YARN Service overview documentation	Trivial	documentation	Denes Gerencser	Denes Gerencser
HADOOP-16719	Remove the disallowed element config within maven-checkstyle-plugin	Major	.	Wanqiang Ji	Wanqiang Ji
HADOOP-16700	RpcQueueTime may be negative when the response has to be sent later	Minor	.	xuzq	xuzq
HADOOP-15686	Supress bogus AbstractWadlGeneratorGrammarGenerator in KMS stderr	Major	kms	Wei-Chiu Chuang	Wei-Chiu Chuang
HDFS-14940	HDFS Balancer : Do not allow to set balancer maximum network bandwidth more than 1TB	Minor	balancer & mover	Souryakanta Dwivedy	Hemanth Boyina
YARN-9838	Fix resource inconsistency for queues when moving app with reserved container to another queue	Critical	capacity scheduler	jiulongzhu	jiulongzhu
YARN-9968	Public Localizer is exiting in NodeManager due to NullPointerException	Major	nodemanager	Tarun Parimi	Tarun Parimi
YARN-9011	Race condition during decommissioning	Major	nodemanager	Peter Bacsko	Peter Bacsko
HDFS-14973	Balancer getBlocks RPC dispersal does not function properly	Major	balancer & mover	Erik Krogen	Erik Krogen
HADOOP-16685	FileSystem#listStatusIterator does not check if given path exists	Major	fs	Sahil Takiar	Sahil Takiar
MAPREDUCE-7240	Exception ' Invalid event: TA_TOO_MANY_FETCH_FAILURE at SUCCESS_FINISHING_CONTAINER' cause job error	Critical	.	luhuachao	luhuachao
MAPREDUCE-7249	Invalid event TA_TOO_MANY_FETCH_FAILURE at SUCCESS_CONTAINER_CLEANUP causes job failure	Critical	applicationmaster, mrv2	Wilfred Spiegelenburg	Wilfred Spiegelenburg
YARN-9993	Remove incorrectly committed files from YARN-9011	Major	yarn	Wilfred Spiegelenburg	Wilfred Spiegelenburg
HDFS-15010	BlockPoolSlice#addReplicaThreadPool static pool should be initialized by static method	Major	datanode	Surendra Singh Lilhore	Surendra Singh Lilhore
HADOOP-16744	Fix building instruction to enable zstd	Minor	documentation	Masatake Iwasaki	Masatake Iwasaki
YARN-9985	Unsupported "transitionToObserver" option displaying for rmadmin command	Minor	RM, yarn	Souryakanta Dwivedy	Ayush Saxena
HADOOP-16754	Fix docker failed to build yetus/hadoop	Blocker	build	Kevin Su	Kevin Su
HDFS-15032	Balancer crashes when it fails to contact an unavailable NN via ObserverReadProxyProvider	Major	balancer & mover	Erik Krogen	Erik Krogen
HDFS-15036	Active NameNode should not silently fail the image transfer	Major	namenode	Konstantin Shvachko	Chen Liang
HDFS-14519	NameQuota is not update after concat operation, so namequota is wrong	Major	.	Ranith Sardar	Ranith Sardar
YARN-10055	bower install fails	Blocker	build, yarn-ui-v2	Akira Ajisaka	Akira Ajisaka
HDFS-15076	Fix tests that hold FSDirectory lock, without holding FSNamesystem lock.	Major	test	Konstantin Shvachko	Konstantin Shvachko
HDFS-15073	Replace curator-shaded guava import with the standard one	Minor	hdfs-client	Akira Ajisaka	Chandra Sanivarapu
HADOOP-16042	Update the link to HadoopJavaVersion	Minor	documentation	Akira Ajisaka	Chandra Sanivarapu
HDFS-14934	[SBN Read] Standby NN throws many InterruptedExceptions when dfs.ha.tail-edits.period is 0	Major	.	Takanobu Asanuma	Ayush Saxena
YARN-10053	Placement rules do not use correct group service init	Major	yarn	Wilfred Spiegelenburg	Wilfred Spiegelenburg
HDFS-15068	DataNode could meet deadlock if invoke refreshVolumes when register	Major	datanode	Xiaoqiao He	Aiphago
MAPREDUCE-7255	Fix typo in MapReduce documentaion example	Trivial	documentation	Sergey Pogorelov	Sergey Pogorelov
HDFS-15072	HDFS MiniCluster fails to start when run in directory path with a %	Minor	.	Geoffrey Jacoby	Masatake Iwasaki
HDFS-15077	Fix intermittent failure of TestDFSClientRetries#testLeaseRenewSocketTimeout	Minor	test	Masatake Iwasaki	Masatake Iwasaki
HDFS-15080	Fix the issue in reading persistent memory cached data with an offset	Major	caching, datanode	Feilong He	Feilong He
YARN-7387	org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.TestIncreaseAllocationExpirer fails intermittently	Major	.	Miklos Szegedi	Jim Brennan
YARN-8672	TestContainerManager#testLocalingResourceWhileContainerRunning occasionally times out	Major	nodemanager	Jason Darrell Lowe	Chandni Singh
HDFS-14957	INodeReference Space Consumed was not same in QuotaUsage and ContentSummary	Major	namenode	Hemanth Boyina	Hemanth Boyina
MAPREDUCE-7252	Handling 0 progress in SimpleExponential task runtime estimator	Minor	.	Ahmed Hussein	Ahmed Hussein
HADOOP-16749	Configuration parsing of CDATA values are blank	Major	conf	Jonathan Turner Eagles	Daryn Sharp
HDFS-15095	Fix accidental comment in flaky test TestDecommissioningStatus	Major	hdfs	Ahmed Hussein	Ahmed Hussein
HDFS-15099	[SBN Read] checkOperation(WRITE) should throw ObserverRetryOnActiveException on ObserverNode	Major	namenode	Konstantin Shvachko	Chen Liang
HDFS-14578	AvailableSpaceBlockPlacementPolicy always prefers local node	Major	block placement	Wei-Chiu Chuang	Ayush Saxena
HADOOP-16683	Disable retry of FailoverOnNetworkExceptionRetry in case of wrapped AccessControlException	Major	common	Adam Antal	Adam Antal
MAPREDUCE-7256	Fix javadoc error in SimpleExponentialSmoothing	Minor	documentation	Masatake Iwasaki	Masatake Iwasaki
YARN-8373	RM Received RMFatalEvent of type CRITICAL_THREAD_CRASH	Major	fairscheduler, resourcemanager	Girish Bhat	Wilfred Spiegelenburg
MAPREDUCE-7247	Modify HistoryServerRest.html content,change The job attempt id‘s datatype from string to int	Major	documentation	zhaoshengjie	zhaoshengjie
YARN-9970	Refactor TestUserGroupMappingPlacementRule#verifyQueueMapping	Major	.	Manikandan R	Manikandan R
YARN-8148	Update decimal values for queue capacities shown on queue status CLI	Major	client	Prabhu Joseph	Prabhu Joseph
HADOOP-16808	Use forkCount and reuseForks parameters instead of forkMode in the config of maven surefire plugin	Minor	build	Akira Ajisaka	Xieming Li
HADOOP-16793	Remove WARN log when ipc connection interrupted in Client#handleSaslConnectionFailure()	Minor	.	Lisheng Sun	Lisheng Sun
YARN-9462	TestResourceTrackerService.testNodeRemovalGracefully fails sporadically	Minor	resourcemanager, test	Prabhu Joseph	Prabhu Joseph
YARN-9790	Failed to set default-application-lifetime if maximum-application-lifetime is less than or equal to zero	Major	.	kyungwan nam	kyungwan nam
HDFS-14993	checkDiskError doesn't work during datanode startup	Major	datanode	Yang Yun	Yang Yun
HDFS-13179	TestLazyPersistReplicaRecovery#testDnRestartWithSavedReplicas fails intermittently	Critical	fs	Gabor Bota	Ahmed Hussein
MAPREDUCE-7259	testSpeculateSuccessfulWithUpdateEvents fails Intermittently	Minor	.	Ahmed Hussein	Ahmed Hussein
HDFS-15146	TestBalancerRPCDelay.testBalancerRPCDelay fails intermittently	Minor	.	Ahmed Hussein	Ahmed Hussein
MAPREDUCE-7079	JobHistory#ServiceStop implementation is incorrect	Major	.	Jason Darrell Lowe	Ahmed Hussein
HDFS-15118	[SBN Read] Slow clients when Observer reads are enabled but there are no Observers on the cluster.	Major	hdfs-client	Konstantin Shvachko	Chen Liang
HDFS-7175	Client-side SocketTimeoutException during Fsck	Major	namenode	Carl Steinbach	Stephen O'Donnell
HDFS-15148	dfs.namenode.send.qop.enabled should not apply to primary NN port	Major	.	Chen Liang	Chen Liang
HADOOP-16410	Hadoop 3.2 azure jars incompatible with alpine 3.9	Minor	fs/azure	Jose Luis Pedrosa
HDFS-15115	Namenode crash caused by NPE in BlockPlacementPolicyDefault when dynamically change logger to debug	Major	.	wangzhixiang	wangzhixiang
HDFS-15158	The number of failed volumes mismatch with volumeFailures of Datanode metrics	Minor	datanode	Yang Yun	Yang Yun
HADOOP-16849	start-build-env.sh behaves incorrectly when username is numeric only	Minor	build	Jihyun Cho	Jihyun Cho
HDFS-15161	When evictableMmapped or evictable size is zero, do not throw NoSuchElementException in ShortCircuitCache#close()	Major	.	Lisheng Sun	Lisheng Sun
HDFS-15164	Fix TestDelegationTokensWithHA	Major	.	Ayush Saxena	Ayush Saxena
HADOOP-16868	ipc.Server readAndProcess threw NullPointerException	Major	rpc-server	Tsz-wo Sze	Tsz-wo Sze
HADOOP-16869	Upgrade findbugs-maven-plugin to 3.0.5 to fix mvn findbugs:findbugs failure	Major	build	Akira Ajisaka	Akira Ajisaka
HDFS-15052	WebHDFS getTrashRoot leads to OOM due to FileSystem object creation	Major	webhdfs	Wei-Chiu Chuang	Masatake Iwasaki
HDFS-15185	StartupProgress reports edits segments until the entire startup completes	Major	namenode	Konstantin Shvachko	Konstantin Shvachko
HDFS-15166	Remove redundant field fStream in ByteStringLog	Major	.	Konstantin Shvachko	Xieming Li
YARN-10143	YARN-10101 broke Yarn logs CLI	Blocker	yarn	Adam Antal	Adam Antal
HADOOP-16841	The description of hadoop.http.authentication.signature.secret.file contains outdated information	Minor	documentation	Akira Ajisaka	Xieming Li
YARN-10156	Fix typo 'complaint' which means quite different in Federation.md	Minor	documentation, federation	Sungpeo Kook	Sungpeo Kook
HDFS-15147	LazyPersistTestCase wait logic is error-prone	Minor	.	Ahmed Hussein	Ahmed Hussein
HDFS-14668	Support Fuse with Users from multiple Security Realms	Critical	fuse-dfs	Sailesh Patel	István Fajth
HDFS-15111	stopStandbyServices() should log which service state it is transitioning from.	Major	hdfs, logging	Konstantin Shvachko	Xieming Li
HDFS-15199	NPE in BlockSender	Major	.	Ayush Saxena	Ayush Saxena
HADOOP-16891	Upgrade jackson-databind to 2.9.10.3	Blocker	.	Siyao Meng	Siyao Meng
HDFS-15204	TestRetryCacheWithHA testRemoveCacheDescriptor fails intermittently	Major	hdfs	Ahmed Hussein	Ahmed Hussein
HADOOP-16840	AliyunOSS: getFileStatus throws FileNotFoundException in versioning bucket	Major	fs/oss	wujinhu	wujinhu
YARN-9419	Log a warning if GPU isolation is enabled but LinuxContainerExecutor is disabled	Major	.	Szilard Nemeth	Andras Gyori
YARN-9427	TestContainerSchedulerQueuing.testKillOnlyRequiredOpportunisticContainers fails sporadically	Major	scheduler, test	Prabhu Joseph	Ahmed Hussein
HDFS-15135	EC : ArrayIndexOutOfBoundsException in BlockRecoveryWorker#RecoveryTaskStriped.	Major	erasure-coding	Surendra Singh Lilhore	Ravuri Sushma sree
HDFS-14442	Disagreement between HAUtil.getAddressOfActive and RpcInvocationHandler.getConnectionId	Major	.	Erik Krogen	Ravuri Sushma sree
HDFS-15216	Wrong Use Case of -showprogress in fsck	Major	.	Ravuri Sushma sree	Ravuri Sushma sree
HDFS-15211	EC: File write hangs during close in case of Exception during updatePipeline	Critical	.	Ayush Saxena	Ayush Saxena
HDFS-15208	Suppress bogus AbstractWadlGeneratorGrammarGenerator in KMS stderr in hdfs	Trivial	.	Wei-Chiu Chuang	Wei-Chiu Chuang
HDFS-15223	FSCK fails if one namenode is not available	Major	.	Ayush Saxena	Ayush Saxena
HDFS-15232	Fix libhdfspp test failures with GCC 7	Major	native, test	Akira Ajisaka	Akira Ajisaka
HDFS-15219	DFS Client will stuck when ResponseProcessor.run throw Error	Major	hdfs-client	zhengchenyu	zhengchenyu
HDFS-15191	EOF when reading legacy buffer in BlockTokenIdentifier	Major	hdfs	Steven Rand	Steven Rand
YARN-10202	Fix documentation about NodeAttributes.	Minor	documentation	Sen Zhao	Sen Zhao
HADOOP-16949	pylint fails in the build environment	Critical	build	Akira Ajisaka	Akira Ajisaka
HADOOP-14836	Upgrade maven-clean-plugin to 3.1.0	Major	build	Allen Wittenauer	Akira Ajisaka
YARN-10207	CLOSE_WAIT socket connection leaks during rendering of (corrupted) aggregated logs on the JobHistoryServer Web UI	Major	yarn	Siddharth Ahuja	Siddharth Ahuja
HDFS-12862	CacheDirective becomes invalid when NN restart or failover	Major	caching, hdfs	Wang XL	Wang XL
MAPREDUCE-7272	TaskAttemptListenerImpl excessive log messages	Major	.	Ahmed Hussein	Ahmed Hussein
HDFS-15283	Cache pool MAXTTL is not persisted and restored on cluster restart	Major	namenode	Stephen O'Donnell	Stephen O'Donnell
HADOOP-16944	Use Yetus 0.12.0 in GitHub PR	Major	build	Akira Ajisaka	Akira Ajisaka
HDFS-15276	Concat on INodeRefernce fails with illegal state exception	Critical	.	Hemanth Boyina	Hemanth Boyina
YARN-10223	Duplicate jersey-test-framework-core dependency in yarn-server-common	Minor	build	Akira Ajisaka	Akira Ajisaka
HDFS-15281	ZKFC ignores dfs.namenode.rpc-bind-host and uses dfs.namenode.rpc-address to bind to host address	Major	ha, namenode	Dhiraj Hegde	Dhiraj Hegde
HDFS-15297	TestNNHandlesBlockReportPerStorage::blockReport_02 fails intermittently in trunk	Major	datanode, test	Mingliang Liu	Ayush Saxena
HADOOP-17014	Upgrade jackson-databind to 2.9.10.4	Blocker	.	Siyao Meng	Siyao Meng
YARN-9848	revert YARN-4946	Blocker	log-aggregation, resourcemanager	Steven Rand	Steven Rand
HDFS-15286	Concat on a same files deleting the file	Critical	.	Hemanth Boyina	Hemanth Boyina
YARN-10256	Refactor TestContainerSchedulerQueuing.testContainerUpdateExecTypeGuaranteedToOpportunistic	Major	.	Ahmed Hussein	Ahmed Hussein
HDFS-15270	Account for *env == NULL in hdfsThreadDestructor	Major	.	Babneet Singh	Babneet Singh
YARN-8959	TestContainerResizing fails randomly	Minor	.	Bibin Chundatt	Ahmed Hussein
HDFS-15323	StandbyNode fails transition to active due to insufficient transaction tailing	Major	namenode, qjm	Konstantin Shvachko	Konstantin Shvachko
HADOOP-17025	Fix invalid metastore configuration in S3GuardTool tests	Minor	fs/s3, test	Masatake Iwasaki	Masatake Iwasaki
HDFS-15339	TestHDFSCLI fails for user names with the dot/dash character	Major	test	Yan Xiaole	Yan Xiaole
HDFS-15250	Setting `dfs.client.use.datanode.hostname` to true can crash the system because of unhandled UnresolvedAddressException	Major	.	Ctest	Ctest
HDFS-14367	EC: Parameter maxPoolSize in striped reconstruct thread pool isn't affecting number of threads	Major	ec	Guo Lei	Guo Lei
HADOOP-15565	ViewFileSystem.close doesn't close child filesystems and causes FileSystem objects leak.	Major	.	Jinglun	Jinglun
YARN-9444	YARN API ResourceUtils's getRequestedResourcesFromConfig doesn't recognize yarn.io/gpu as a valid resource	Minor	api	Gergely Pollak	Gergely Pollak
HADOOP-17044	Revert "HADOOP-8143. Change distcp to have -pb on by default"	Major	tools/distcp	Steve Loughran	Steve Loughran
HDFS-15293	Relax the condition for accepting a fsimage when receiving a checkpoint	Critical	namenode	Chen Liang	Chen Liang
HADOOP-17024	ListStatus on ViewFS root (ls "/") should list the linkFallBack root (configured target root).	Major	fs, viewfs	Uma Maheswara Rao G	Abhishek Das
HADOOP-17040	Fix intermittent failure of ITestBlockingThreadPoolExecutorService	Minor	fs/s3, test	Masatake Iwasaki	Masatake Iwasaki
HDFS-15363	BlockPlacementPolicyWithNodeGroup should validate if it is initialized by NetworkTopologyWithNodeGroup	Major	.	Hemanth Boyina	Hemanth Boyina
MAPREDUCE-7278	Speculative execution behavior is observed even when mapreduce.map.speculative and mapreduce.reduce.speculative are false	Major	task	Tarun Parimi	Tarun Parimi
HADOOP-7002	Wrong description of copyFromLocal and copyToLocal in documentation	Minor	.	Jingguo Yao	Andras Bokor
HADOOP-17052	NetUtils.connect() throws unchecked exception (UnresolvedAddressException) causing clients to abort	Major	net	Dhiraj Hegde	Dhiraj Hegde
HADOOP-17062	Fix shelldocs path in Jenkinsfile	Major	build	Akira Ajisaka	Akira Ajisaka
HADOOP-17056	shelldoc fails in hadoop-common	Major	build	Akira Ajisaka	Akira Ajisaka
YARN-10286	PendingContainers bugs in the scheduler outputs	Critical	.	Adam Antal	Andras Gyori
HDFS-15396	Fix TestViewFileSystemOverloadSchemeHdfsFileSystemContract#testListStatusRootDir	Major	.	Ayush Saxena	Ayush Saxena
HDFS-15386	ReplicaNotFoundException keeps happening in DN after removing multiple DN's data directories	Major	.	Toshihiro Suzuki	Toshihiro Suzuki
YARN-10300	appMasterHost not set in RM ApplicationSummary when AM fails before first heartbeat	Major	.	Eric Badger	Eric Badger
HADOOP-17059	ArrayIndexOfboundsException in ViewFileSystem#listStatus	Major	viewfs	Hemanth Boyina	Hemanth Boyina
YARN-10296	Make ContainerPBImpl#getId/setId synchronized	Minor	.	Benjamin Teke	Benjamin Teke
YARN-10295	CapacityScheduler NPE can cause apps to get stuck without resources	Major	capacityscheduler	Benjamin Teke	Benjamin Teke
HADOOP-17060	listStatus and getFileStatus behave inconsistent in the case of ViewFs implementation for isDirectory	Major	viewfs	Srinivasu Majeti	Uma Maheswara Rao G
YARN-10312	Add support for yarn logs -logFile to retain backward compatibility	Major	client	Jim Brennan	Jim Brennan
HDFS-15403	NPE in FileIoProvider#transferToSocketFully	Major	.	Hemanth Boyina	Hemanth Boyina
HADOOP-17029	ViewFS does not return correct user/group and ACL	Major	fs, viewfs	Abhishek Das	Abhishek Das
HDFS-15421	IBR leak causes standby NN to be stuck in safe mode	Blocker	namenode	Kihwal Lee	Akira Ajisaka
YARN-9903	Support reservations continue looking for Node Labels	Major	.	Tarun Parimi	Jim Brennan
HADOOP-17032	Handle an internal dir in viewfs having multiple children mount points pointing to different filesystems	Major	fs, viewfs	Abhishek Das	Abhishek Das
HDFS-15446	CreateSnapshotOp fails during edit log loading for /.reserved/raw/path with error java.io.FileNotFoundException: Directory does not exist: /.reserved/raw/path	Major	hdfs	Srinivasu Majeti	Stephen O'Donnell
HADOOP-17081	MetricsSystem doesn't start the sink adapters on restart	Minor	metrics	Madhusoodan	Madhusoodan
HDFS-15451	Restarting name node stuck in safe mode when using provided storage	Major	namenode	shanyu zhao	shanyu zhao
HADOOP-17120	Fix failure of docker image creation due to pip2 install error	Major	.	Masatake Iwasaki	Masatake Iwasaki
YARN-10347	Fix double locking in CapacityScheduler#reinitialize in branch-3.1	Critical	capacity scheduler	Masatake Iwasaki	Masatake Iwasaki
YARN-10348	Allow RM to always cancel tokens after app completes	Major	yarn	Jim Brennan	Jim Brennan
MAPREDUCE-7284	TestCombineFileInputFormat#testMissingBlocks fails	Major	test	Akira Ajisaka	Akira Ajisaka
HDFS-14498	LeaseManager can loop forever on the file for which create has failed	Major	namenode	Sergey Shelukhin	Stephen O'Donnell
HADOOP-17130	Configuration.getValByRegex() shouldn't update the results while fetching.	Major	common	Mukund Thakur	Mukund Thakur
HADOOP-17119	Jetty upgrade to 9.4.x causes MR app fail with IOException	Major	.	Bilwa S T	Bilwa S T
YARN-4771	Some containers can be skipped during log aggregation after NM restart	Major	nodemanager	Jason Darrell Lowe	Jim Brennan
MAPREDUCE-7051	Fix typo in MultipleOutputFormat	Trivial	.	ywheel	ywheel
HDFS-15313	Ensure inodes in active filesystem are not deleted during snapshot delete	Major	snapshots	Shashikant Banerjee	Shashikant Banerjee
HDFS-14950	missing libhdfspp libs in dist-package	Major	build, libhdfs++	Yuan Zhou	Yuan Zhou
HADOOP-17184	Add --mvn-custom-repos parameter to yetus calls	Major	build	Mingliang Liu	Mingliang Liu
HDFS-15499	Clean up httpfs/pom.xml to remove aws-java-sdk-s3 exclusion	Major	httpfs	Mingliang Liu	Mingliang Liu
HADOOP-17164	UGI loginUserFromKeytab doesn't set the last login time	Major	security	Sandeep Guggilam	Sandeep Guggilam
YARN-4575	ApplicationResourceUsageReport should return ALL reserved resource	Major	.	Bibin Chundatt	Bibin Chundatt
HADOOP-17196	Fix C/C++ standard warnings	Major	build	Gautham Banasandra	Gautham Banasandra
HADOOP-17204	Fix typo in Hadoop KMS document	Trivial	documentation, kms	Akira Ajisaka	Xieming Li
HADOOP-17209	Erasure Coding: Native library memory leak	Major	native	Sean Chow	Sean Chow
HADOOP-16925	MetricsConfig incorrectly loads the configuration whose value is String list in the properties file	Major	metrics	Jiayi Liu	Jiayi Liu
HDFS-14852	Removing from LowRedundancyBlocks does not remove the block from all queues	Major	namenode	Hui Fei	Hui Fei
HDFS-15290	NPE in HttpServer during NameNode startup	Major	namenode	Konstantin Shvachko	Simbarashe Dzinamarira
YARN-10430	Log improvements in NodeStatusUpdaterImpl	Minor	nodemanager	Bilwa S T	Bilwa S T
MAPREDUCE-7294	Only application master should upload resource to Yarn Shared Cache	Major	mrv2	zhenzhao wang	zhenzhao wang
MAPREDUCE-7289	Fix wrong comment in LongLong.java	Trivial	documentation, examples	Akira Ajisaka	Wanqiang Ji
YARN-9809	NMs should supply a health status when registering with RM	Major	.	Eric Badger	Eric Badger
YARN-10393	MR job live lock caused by completed state container leak in heartbeat between node manager and RM	Major	nodemanager, yarn	zhenzhao wang	Jim Brennan
YARN-10455	TestNMProxy.testNMProxyRPCRetry is not consistent	Major	.	Ahmed Hussein	Ahmed Hussein
HADOOP-17223	update org.apache.httpcomponents:httpclient to 4.5.13 and httpcore to 4.4.13	Blocker	.	Pranav Bheda	Pranav Bheda
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
HDFS-15639	[JDK 11] Fix Javadoc errors in hadoop-hdfs-client	Major	.	Takanobu Asanuma	Takanobu Asanuma
HDFS-15618	Improve datanode shutdown latency	Major	datanode	Ahmed Hussein	Ahmed Hussein
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
HDFS-15644	Failed volumes can cause DNs to stop block reporting	Major	block placement, datanode	Ahmed Hussein	Ahmed Hussein
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
YARN-10472	Backport YARN-10314 to branch-3.2	Blocker	yarn	Siyao Meng	Siyao Meng
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
HADOOP-17096	ZStandardCompressor throws java.lang.InternalError: Error (generic)	Major	io	Stephen Jung (Stripe)	Stephen Jung (Stripe)
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
YARN-10396	Max applications calculation per queue disregards queue level settings in absolute mode	Major	capacity scheduler	Benjamin Teke	Benjamin Teke
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	zhuqi	zhuqi
HADOOP-16080	hadoop-aws does not work with hadoop-client-api	Major	fs/s3	Keith Turner	Chao Sun
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
HDFS-15240	Erasure Coding: dirty buffer causes reconstruction block error	Blocker	datanode, erasure-coding	HuangTao	HuangTao

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
YARN-10072	TestCSAllocateCustomResource failures	Major	yarn	Jim Brennan	Jim Brennan
YARN-10161	TestRouterWebServicesREST is corrupting STDOUT	Minor	yarn	Jim Brennan	Jim Brennan
HADOOP-14206	TestSFTPFileSystem#testFileExists failure: Invalid encoding for signature	Major	fs, test	John Zhuge	Jim Brennan
MAPREDUCE-7288	Fix TestLongLong#testRightShift	Minor	.	Wanqiang Ji	Wanqiang Ji
HDFS-15514	Remove useless dfs.webhdfs.enabled	Minor	test	Hui Fei	Hui Fei
HADOOP-17205	Move personality file from Yetus to Hadoop repository	Major	test, yetus	Chao Sun	Chao Sun

SUB-TASKS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-15775	[JDK9] Add missing javax.activation-api dependency	Critical	test	Akira Ajisaka	Akira Ajisaka
HDFS-14096	[SPS] : Add Support for Storage Policy Satisfier in ViewFs	Major	federation	Ayush Saxena	Ayush Saxena
HADOOP-15787	[JDK11] TestIPC.testRTEDuringConnectionSetup fails	Major	.	Akira Ajisaka	Zsolt Venczel
HDFS-14262	[SBN read] Unclear Log.WARN message in GlobalStateIdContext	Major	hdfs	Shweta	Shweta
YARN-7243	Moving logging APIs over to slf4j in hadoop-yarn-server-resourcemanager	Major	.	Yeliang Cang	Prabhu Joseph
HDFS-13404	RBF: TestRouterWebHDFSContractAppend.testRenameFileBeingAppended fails	Major	test	Takanobu Asanuma	Takanobu Asanuma
HADOOP-16117	Update AWS SDK to 1.11.563	Major	build, fs/s3	Steve Loughran	Steve Loughran
HDFS-14590	[SBN Read] Add the document link to the top page	Major	documentation	Takanobu Asanuma	Takanobu Asanuma
YARN-9791	Queue Mutation API does not allow to remove a config	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
HDFS-14822	[SBN read] Revisit GlobalStateIdContext locking when getting server state id	Major	hdfs	Chen Liang	Chen Liang
HDFS-14785	[SBN read] Change client logging to be less aggressive	Major	hdfs	Chen Liang	Chen Liang
YARN-9864	Format CS Configuration present in Configuration Store	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
YARN-9801	SchedConfCli does not work with https mode	Major	.	Prabhu Joseph	Prabhu Joseph
HDFS-14858	[SBN read] Allow configurably enable/disable AlignmentContext on NameNode	Major	hdfs	Chen Liang	Chen Liang
HDFS-12979	StandbyNode should upload FsImage to ObserverNode after checkpointing.	Major	hdfs	Konstantin Shvachko	Chen Liang
YARN-9873	Mutation API Config Change need to update Version Number	Major	.	Prabhu Joseph	Prabhu Joseph
HDFS-14162	Balancer should work with ObserverNode	Major	.	Konstantin Shvachko	Erik Krogen
YARN-9773	Add QueueMetrics for Custom Resources	Major	.	Manikandan R	Manikandan R
HADOOP-16598	Backport "HADOOP-16558 [COMMON+HDFS] use protobuf-maven-plugin to generate protobuf classes" to all active branches	Major	common	Duo Zhang	Duo Zhang
YARN-9950	Unset Ordering Policy of Leaf/Parent queue converted from Parent/Leaf queue respectively	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
YARN-9900	Revert to previous state when Invalid Config is applied and Refresh Support in SchedulerConfig Format	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
HADOOP-16610	Upgrade to yetus 0.11.1 and use emoji vote on github pre commit	Major	build	Duo Zhang	Duo Zhang
YARN-9909	Offline format of YarnConfigurationStore	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
YARN-9836	General usability improvements in showSimulationTrace.html	Minor	scheduler-load-simulator	Adam Antal	Adam Antal
HADOOP-16612	Track Azure Blob File System client-perceived latency	Major	fs/azure, hdfs-client	Jeetesh Mangwani	Jeetesh Mangwani
HADOOP-16758	Refine testing.md to tell user better how to use auth-keys.xml	Minor	fs/s3	Mingliang Liu	Mingliang Liu
HADOOP-16609	Add Jenkinsfile for all active branches	Major	build	Duo Zhang	Akira Ajisaka
HADOOP-16785	Improve wasb and abfs resilience on double close() calls	Major	fs/azure	Steve Loughran	Steve Loughran
YARN-10026	Pull out common code pieces from ATS v1.5 and v2	Major	ATSv2, yarn	Adam Antal	Adam Antal
YARN-10028	Integrate the new abstract log servlet to the JobHistory server	Major	yarn	Adam Antal	Adam Antal
YARN-10083	Provide utility to ask whether an application is in final status	Minor	.	Adam Antal	Adam Antal
YARN-10109	Allow stop and convert from leaf to parent queue in a single Mutation API call	Major	capacity scheduler	Prabhu Joseph	Prabhu Joseph
YARN-10101	Support listing of aggregated logs for containers belonging to an application attempt	Major	log-aggregation, yarn	Adam Antal	Adam Antal
YARN-10022	Create RM Rest API to validate a CapacityScheduler Configuration	Major	.	Kinga Marton	Kinga Marton
HDFS-15173	RBF: Delete repeated configuration 'dfs.federation.router.metrics.enable'	Minor	documentation, rbf	panlijie	panlijie
YARN-10139	ValidateAndGetSchedulerConfiguration API fails when cluster max allocation > default 8GB	Major	.	Prabhu Joseph	Prabhu Joseph
HDFS-14731	[FGL] Remove redundant locking on NameNode.	Major	namenode	Konstantin Shvachko	Konstantin Shvachko
YARN-10194	YARN RMWebServices /scheduler-conf/validate leaks ZK Connections	Blocker	capacityscheduler	Akhil PB	Prabhu Joseph
HDFS-14353	Erasure Coding: metrics xmitsInProgress become to negative.	Major	datanode, erasure-coding	Baolong Mao	Baolong Mao
HDFS-15305	Extend ViewFS and provide ViewFSOverloadScheme implementation with scheme configurable.	Major	fs, hadoop-client, hdfs-client, viewfs	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15306	Make mount-table to read from central place ( Let's say from HDFS)	Major	configuration, hadoop-client	Uma Maheswara Rao G	Uma Maheswara Rao G
HADOOP-16756	distcp -update to S3A; abfs, etc always overwrites due to block size mismatch	Major	fs/s3, tools/distcp	Daisuke Kobayashi	Steve Loughran
HDFS-15322	Make NflyFS to work when ViewFsOverloadScheme's scheme and target uris schemes are same.	Major	fs, nflyFs, viewfs, viewfsOverloadScheme	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15321	Make DFSAdmin tool to work with ViewFSOverloadScheme	Major	dfsadmin, fs, viewfs	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15330	Document the ViewFSOverloadScheme details in ViewFS guide	Major	viewfs, viewfsOverloadScheme	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15389	DFSAdmin should close filesystem and dfsadmin -setBalancerBandwidth should work with ViewFSOverloadScheme	Major	dfsadmin, viewfsOverloadScheme	Ayush Saxena	Ayush Saxena
HDFS-15394	Add all available fs.viewfs.overload.scheme.target.<scheme>.impl classes in core-default.xml bydefault.	Major	configuration, viewfs, viewfsOverloadScheme	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15387	FSUsage$DF should consider ViewFSOverloadScheme in processPath	Minor	viewfs	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15418	ViewFileSystemOverloadScheme should represent mount links as non symlinks	Major	.	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15427	Merged ListStatus with Fallback target filesystem and InternalDirViewFS.	Major	viewfs	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15429	mkdirs should work when parent dir is internalDir and fallback configured.	Major	.	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15436	Default mount table name used by ViewFileSystem should be configurable	Major	viewfs, viewfsOverloadScheme	Virajith Jalaparti	Virajith Jalaparti
HDFS-15450	Fix NN trash emptier to work if ViewFSOveroadScheme enabled	Major	namenode, viewfsOverloadScheme	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-15462	Add fs.viewfs.overload.scheme.target.ofs.impl to core-default.xml	Major	configuration, viewfs, viewfsOverloadScheme	Siyao Meng	Siyao Meng
HDFS-15464	ViewFsOverloadScheme should work when -fs option pointing to remote cluster without mount links	Major	viewfsOverloadScheme	Uma Maheswara Rao G	Uma Maheswara Rao G
HADOOP-17101	Replace Guava Function with Java8+ Function	Major	.	Ahmed Hussein	Ahmed Hussein
HADOOP-17099	Replace Guava Predicate with Java8+ Predicate	Minor	.	Ahmed Hussein	Ahmed Hussein
HDFS-15478	When Empty mount points, we are assigning fallback link to self. But it should not use full URI for target fs.	Major	.	Uma Maheswara Rao G	Uma Maheswara Rao G
HADOOP-17100	Replace Guava Supplier with Java8+ Supplier in Hadoop	Major	.	Ahmed Hussein	Ahmed Hussein
HDFS-15515	mkdirs on fallback should throw IOE out instead of suppressing and returning false	Major	.	Uma Maheswara Rao G	Uma Maheswara Rao G
HADOOP-17199	Backport HADOOP-13230 list/getFileStatus changes for preserved directory markers	Major	fs/s3	Steve Loughran	Steve Loughran
HDFS-8631	WebHDFS : Support setQuota	Major	.	nijel	Chao Sun
YARN-10332	RESOURCE_UPDATE event was repeatedly registered in DECOMMISSIONING state	Minor	resourcemanager	yehuanhuan	yehuanhuan
HDFS-15459	TestBlockTokenWithDFSStriped fails intermittently	Major	hdfs	Ahmed Hussein	Ahmed Hussein
HDFS-15461	TestDFSClientRetries#testGetFileChecksum fails intermittently	Major	dfsclient, test	Ahmed Hussein	Ahmed Hussein
HDFS-9776	TestHAAppend#testMultipleAppendsDuringCatchupTailing is flaky	Major	.	Vinayakumar B	Ahmed Hussein
HADOOP-17330	Backport HADOOP-16005-"NativeAzureFileSystem does not support setXAttr" to branch-3.2	Major	fs/azure	Sally Zuo	Sally Zuo
HDFS-15643	EC: Fix checksum computation in case of native encoders	Blocker	.	Ahmed Hussein	Ayush Saxena
HADOOP-17343	Upgrade aws-java-sdk to 1.11.901	Minor	build, fs/s3	Dongjoon Hyun	Steve Loughran
HADOOP-17325	WASB: Test failures	Major	fs/azure, test	Sneha Vijayarajan	Steve Loughran
HDFS-15708	TestURLConnectionFactory fails by NoClassDefFoundError in branch-3.3 and branch-3.2	Blocker	test	Akira Ajisaka	Chao Sun

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-14394	Add -std=c99 / -std=gnu99 to libhdfs compile flags	Major	hdfs-client, libhdfs, native	Sahil Takiar	Sahil Takiar
HADOOP-16365	Upgrade jackson-databind to 2.9.9	Major	build	Shweta	Shweta
HADOOP-16491	Upgrade jetty version to 9.3.27	Major	.	Hrishikesh Gadre	Hrishikesh Gadre
HADOOP-16542	Update commons-beanutils version to 1.9.4	Major	.	Wei-Chiu Chuang	Kevin Su
YARN-9730	Support forcing configured partitions to be exclusive based on app node label	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16675	Upgrade jackson-databind to 2.9.10.1	Blocker	security	Wei-Chiu Chuang	Lisheng Sun
HDFS-14959	[SBNN read] access time should be turned off	Major	documentation	Wei-Chiu Chuang	Chao Sun
HADOOP-16784	Update the year to 2020	Major	.	Ayush Saxena	Ayush Saxena
HADOOP-16803	Upgrade jackson-databind to 2.9.10.2	Blocker	security	Akira Ajisaka	Masatake Iwasaki
HADOOP-16871	Upgrade Netty version to 4.1.45.Final to handle CVE-2019-20444,CVE-2019-16869	Major	.	Aray Chenchu Sukesh	Aray Chenchu Sukesh
HADOOP-16647	Support OpenSSL 1.1.1 LTS	Critical	security	Wei-Chiu Chuang	Rakesh Radhakrishnan
HADOOP-16982	Update Netty to 4.1.48.Final	Blocker	.	Wei-Chiu Chuang	Lisheng Sun
HADOOP-16990	Update Mockserver	Major	.	Wei-Chiu Chuang	Attila Doroszlai
YARN-10540	Node page is broken in YARN UI1 and UI2 including RMWebService api for nodes	Critical	webapp	Sunil G	Jim Brennan
HADOOP-17445	Update the year to 2021	Major	.	Xiaoqiao He	Xiaoqiao He