“Apache Hadoop” Changelog

Release 2.10.0 - 2019-10-22

INCOMPATIBLE CHANGES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-12883	RBF: Document Router and State Store metrics	Major	documentation	Yiqun Lin	Yiqun Lin
HDFS-12895	RBF: Add ACL support for mount table	Major	.	Yiqun Lin	Yiqun Lin
HDFS-13099	RBF: Use the ZooKeeper as the default State Store	Minor	documentation	Yiqun Lin	Yiqun Lin
HADOOP-16055	Upgrade AWS SDK to 1.11.271 in branch-2	Blocker	fs/s3	Akira Ajisaka	Akira Ajisaka
HADOOP-16053	Backport HADOOP-14816 to branch-2	Major	build	Akira Ajisaka	Akira Ajisaka

IMPORTANT ISSUES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-13083	RBF: Fix doc error setting up client	Major	federation	tartarus	tartarus

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-13283	Percentage based Reserved Space Calculation for DataNode	Major	datanode, hdfs	Lukas Majercak	Lukas Majercak
HDFS-13553	RBF: Support global quota	Major	.	Íñigo Goiri	Yiqun Lin
HADOOP-15950	Failover for LdapGroupsMapping	Major	common, security	Lukas Majercak	Lukas Majercak
YARN-9761	Allow overriding application submissions based on server side configs	Major	.	Jonathan Hung	pralabhkumar
YARN-9760	Support configuring application priorities on a workflow level	Major	.	Jonathan Hung	Varun Saxena

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-14987	Improve KMSClientProvider log around delegation token checking	Major	.	Xiaoyu Yao	Xiaoyu Yao
HADOOP-14872	CryptoInputStream should implement unbuffer	Major	fs, security	John Zhuge	John Zhuge
HADOOP-14960	Add GC time percentage monitor/alerter	Major	.	Misha Dmitriev	Misha Dmitriev
HADOOP-15023	ValueQueue should also validate (lowWatermark * numValues) > 0 on construction	Minor	.	Xiao Chen	Xiao Chen
YARN-6851	Capacity Scheduler: document configs for controlling # containers allowed to be allocated per node heartbeat	Minor	.	Wei Yan	Wei Yan
YARN-7495	Improve robustness of the AggregatedLogDeletionService	Major	log-aggregation	Jonathan Turner Eagles	Jonathan Turner Eagles
HADOOP-15056	Fix TestUnbuffer#testUnbufferException failure	Minor	test	Jack Bearden	Jack Bearden
HADOOP-15012	Add readahead, dropbehind, and unbuffer to StreamCapabilities	Major	fs	John Zhuge	John Zhuge
HADOOP-15104	AliyunOSS: change the default value of max error retry	Major	fs/oss	wujinhu	wujinhu
YARN-7274	Ability to disable elasticity at leaf queue level	Major	capacityscheduler	Scott Brokaw	Zian Chen
YARN-7642	Add test case to verify context update after container promotion or demotion with or without auto update	Minor	nodemanager	Weiwei Yang	Weiwei Yang
HADOOP-15111	AliyunOSS: backport HADOOP-14993 to branch-2	Major	fs/oss	Genmao Yu	Genmao Yu
HDFS-12818	Support multiple storages in DataNodeCluster / SimulatedFSDataset	Minor	datanode, test	Erik Krogen	Erik Krogen
HDFS-9023	When NN is not able to identify DN for replication, reason behind it can be logged	Critical	hdfs-client, namenode	Surendra Singh Lilhore	Xiao Chen
YARN-7678	Ability to enable logging of container memory stats	Major	nodemanager	Jim Brennan	Jim Brennan
HDFS-12945	Switch to ClientProtocol instead of NamenodeProtocols in NamenodeWebHdfsMethods	Minor	.	Wei Yan	Wei Yan
YARN-7622	Allow fair-scheduler configuration on HDFS	Minor	fairscheduler, resourcemanager	Greg Phillips	Greg Phillips
YARN-7590	Improve container-executor validation check	Major	security, yarn	Eric Yang	Eric Yang
MAPREDUCE-7029	FileOutputCommitter is slow on filesystems lacking recursive delete	Minor	.	Karthik Palaniappan	Karthik Palaniappan
MAPREDUCE-6984	MR AM to clean up temporary files from previous attempt in case of no recovery	Major	applicationmaster	Gergo Repas	Gergo Repas
HADOOP-15189	backport HADOOP-15039 to branch-2 and branch-3	Blocker	.	Genmao Yu	Genmao Yu
HADOOP-15212	Add independent secret manager method for logging expired tokens	Major	security	Daryn Sharp	Daryn Sharp
YARN-7728	Expose container preemptions related information in Capacity Scheduler queue metrics	Major	.	Eric Payne	Eric Payne
MAPREDUCE-7048	Uber AM can crash due to unknown task in statusUpdate	Major	mr-am	Peter Bacsko	Peter Bacsko
HADOOP-13972	ADLS to support per-store configuration	Major	fs/adl	John Zhuge	Sharad Sonker
YARN-7813	Capacity Scheduler Intra-queue Preemption should be configurable for each queue	Major	capacity scheduler, scheduler preemption	Eric Payne	Eric Payne
HADOOP-15235	Authentication Tokens should use HMAC instead of MAC	Major	security	Robert Kanter	Robert Kanter
HDFS-11187	Optimize disk access for last partial chunk checksum of Finalized replica	Major	datanode	Wei-Chiu Chuang	Gabor Bota
HADOOP-15266	[branch-2] Upper/Lower case conversion support for group names in LdapGroupsMapping	Major	.	Nanda kumar	Nanda kumar
HADOOP-15279	increase maven heap size recommendations	Minor	build, documentation, test	Allen Wittenauer	Allen Wittenauer
HDFS-12884	BlockUnderConstructionFeature.truncateBlock should be of type BlockInfo	Major	namenode	Konstantin Shvachko	chencan
HADOOP-15334	Upgrade Maven surefire plugin	Major	build	Arpit Agarwal	Arpit Agarwal
HADOOP-15312	Undocumented KeyProvider configuration keys	Major	.	Wei-Chiu Chuang	LiXin Ge
YARN-7623	Fix the CapacityScheduler Queue configuration documentation	Major	.	Arun Suresh	Jonathan Hung
HDFS-13314	NameNode should optionally exit if it detects FsImage corruption	Major	namenode	Arpit Agarwal	Arpit Agarwal
HDFS-13418	NetworkTopology should be configurable when enable DFSNetworkTopology	Major	.	Tao Jie	Tao Jie
HADOOP-15394	Backport PowerShell NodeFencer HADOOP-14309 to branch-2	Minor	.	Íñigo Goiri	Íñigo Goiri
HDFS-13462	Add BIND_HOST configuration for JournalNode's HTTP and RPC Servers	Major	hdfs, journal-node	Lukas Majercak	Lukas Majercak
HDFS-13492	Limit httpfs binds to certain IP addresses in branch-2	Major	httpfs	Wei-Chiu Chuang	Wei-Chiu Chuang
HDFS-12981	renameSnapshot a Non-Existent snapshot to itself should throw error	Minor	hdfs	Sailesh Patel	Kitti Nanasi
HADOOP-15441	Log kms url and token service at debug level.	Minor	.	Wei-Chiu Chuang	Gabor Bota
HDFS-13544	Improve logging for JournalNode in federated cluster	Major	federation, hdfs	Hanisha Koneru	Hanisha Koneru
YARN-8249	Few REST api's in RMWebServices are missing static user check	Critical	webapp, yarn	Sunil G	Sunil G
HADOOP-15486	Make NetworkTopology#netLock fair	Major	net	Nanda kumar	Nanda kumar
HADOOP-15449	Increase default timeout of ZK session to avoid frequent NameNode failover	Critical	common	Karthik Palanisamy	Karthik Palanisamy
HDFS-13602	Add checkOperation(WRITE) checks in FSNamesystem	Major	ha, namenode	Erik Krogen	Chao Sun
HDFS-13644	Backport HDFS-10376 to branch-2	Major	.	Yiqun Lin	Zsolt Venczel
HDFS-13653	Make dfs.client.failover.random.order a per nameservice configuration	Major	federation	Ekanth Sethuramalingam	Ekanth Sethuramalingam
HDFS-13686	Add overall metrics for FSNamesystemLock	Major	hdfs, namenode	Lukas Majercak	Lukas Majercak
HDFS-13714	Fix TestNameNodePrunesMissingStorages test failures on Windows	Major	hdfs, namenode, test	Lukas Majercak	Lukas Majercak
HDFS-13719	Docs around dfs.image.transfer.timeout are misleading	Major	documentation	Kitti Nanasi	Kitti Nanasi
HDFS-11060	make DEFAULT_MAX_CORRUPT_FILEBLOCKS_RETURNED configurable	Minor	hdfs	Lantao Jin	Lantao Jin
YARN-8155	Improve ATSv2 client logging in RM and NM publisher	Major	.	Rohith Sharma K S	Abhishek Modi
HDFS-13814	Remove super user privilege requirement for NameNode.getServiceStatus	Minor	namenode	Chao Sun	Chao Sun
YARN-8559	Expose mutable-conf scheduler's configuration in RM /scheduler-conf endpoint	Major	resourcemanager	Anna Savarin	Weiwei Yang
HDFS-13813	Exit NameNode if dangling child inode is detected when saving FsImage	Major	hdfs, namenode	Siyao Meng	Siyao Meng
HDFS-13821	RBF: Add dfs.federation.router.mount-table.cache.enable so that users can disable cache	Major	hdfs	Fei Hui	Fei Hui
HADOOP-15689	Add “*.patch” into .gitignore file of branch-2	Major	.	Rui Gao	Rui Gao
HDFS-13831	Make block increment deletion number configurable	Major	.	Yiqun Lin	Ryan Wu
YARN-8051	TestRMEmbeddedElector#testCallbackSynchronization is flakey	Major	test	Robert Kanter	Robert Kanter
HADOOP-15547	WASB: improve listStatus performance	Major	fs/azure	Thomas Marqardt	Thomas Marqardt
HDFS-13857	RBF: Choose to enable the default nameservice to read/write files	Major	federation, hdfs	yanghuafeng	yanghuafeng
HDFS-13812	Fix the inconsistent default refresh interval on Caching documentation	Trivial	documentation	David Mollitor	Hrishikesh Gadre
HADOOP-15657	Registering MutableQuantiles via Metric annotation	Major	metrics	Sushil Ks	Sushil Ks
HDFS-13902	Add JMX, conf and stacks menus to the datanode page	Minor	datanode	fengchuang	fengchuang
HADOOP-15726	Create utility to limit frequency of log statements	Major	common, util	Erik Krogen	Erik Krogen
YARN-7974	Allow updating application tracking url after registration	Major	.	Jonathan Hung	Jonathan Hung
YARN-8750	Refactor TestQueueMetrics	Minor	resourcemanager	Szilard Nemeth	Szilard Nemeth
YARN-8896	Limit the maximum number of container assignments per heartbeat	Major	.	Weiwei Yang	Zhankun Tang
HADOOP-15804	upgrade to commons-compress 1.18	Major	.	PJ Fanning	Akira Ajisaka
YARN-8915	Update the doc about the default value of “maximum-container-assignments” for capacity scheduler	Minor	.	Zhankun Tang	Zhankun Tang
YARN-7225	Add queue and partition info to RM audit log	Major	resourcemanager	Jonathan Hung	Eric Payne
HADOOP-15919	AliyunOSS: Enable Yarn to use OSS	Major	fs/oss	wujinhu	wujinhu
HADOOP-15943	AliyunOSS: add missing owner & group attributes for oss FileStatus	Major	fs/oss	wujinhu	wujinhu
YARN-9036	Escape newlines in health report in YARN UI	Major	.	Jonathan Hung	Keqiu Hu
YARN-9085	Add Guaranteed and MaxCapacity to CSQueueMetrics	Major	.	Jonathan Hung	Jonathan Hung
HDFS-14171	Performance improvement in Tailing EditLog	Major	namenode	Kenneth Yang	Kenneth Yang
HADOOP-15481	Emit FairCallQueue stats as metrics	Major	metrics, rpc-server	Erik Krogen	Christopher Gregorian
HADOOP-15617	Node.js and npm package loading in the Dockerfile failing on branch-2	Major	build	Allen Wittenauer	Akhil PB
HADOOP-16089	AliyunOSS: update oss-sdk version to 3.4.1	Major	fs/oss	wujinhu	wujinhu
YARN-7171	RM UI should sort memory / cores numerically	Major	.	Eric Maynard	Ahmed Hussein
YARN-9282	Typo in javadoc of class LinuxContainerExecutor: hadoop.security.authetication should be ‘authentication’	Trivial	.	Szilard Nemeth	Charan Hebri
HADOOP-16126	ipc.Client.stop() may sleep too long to wait for all connections	Major	ipc	Tsz-wo Sze	Tsz-wo Sze
HDFS-14247	Repeat adding node description into network topology	Minor	datanode	HuangTao	HuangTao
YARN-9150	Making TimelineSchemaCreator support different backends for Timeline Schema Creation in ATSv2	Major	ATSv2	Sushil Ks	Sushil Ks
HDFS-14366	Improve HDFS append performance	Major	hdfs	Chao Sun	Chao Sun
HDFS-14205	Backport HDFS-6440 to branch-2	Major	.	Chen Liang	Chao Sun
HDFS-14391	Backport HDFS-9659 to branch-2	Minor	.	Chao Sun	Chao Sun
HDFS-14415	Backport HDFS-13799 to branch-2	Trivial	.	Chao Sun	Chao Sun
HDFS-14432	dfs.datanode.shared.file.descriptor.paths duplicated in hdfs-default.xml	Minor	hdfs	puleya7	puleya7
YARN-9529	Log correct cpu controller path on error while initializing CGroups.	Major	nodemanager	Jonathan Hung	Jonathan Hung
HDFS-14502	keepResults option in NNThroughputBenchmark should call saveNamespace()	Major	benchmarks, hdfs	Konstantin Shvachko	Konstantin Shvachko
HADOOP-16323	https everywhere in Maven settings	Minor	build	Akira Ajisaka	Akira Ajisaka
YARN-9563	Resource report REST API could return NaN or Inf	Minor	.	Ahmed Hussein	Ahmed Hussein
HDFS-14513	FSImage which is saving should be clean while NameNode shutdown	Major	namenode	Xiaoqiao He	Xiaoqiao He
HADOOP-16369	Fix zstandard shortname misspelled as zts	Major	.	Jonathan Turner Eagles	Jonathan Turner Eagles
HADOOP-16359	Bundle ZSTD native in branch-2	Major	native	Chao Sun	Chao Sun
HADOOP-15253	Should update maxQueueSize when refresh call queue	Minor	.	Tao Jie	Tao Jie
HADOOP-16266	Add more fine-grained processing time metrics to the RPC layer	Minor	ipc	Christopher Gregorian	Erik Krogen
HDFS-13694	Making md5 computing being in parallel with image loading	Major	.	zhouyingchao	Lisheng Sun
HDFS-14632	Reduce useless #getNumLiveDataNodes call in SafeModeMonitor	Major	namenode	Xiaoqiao He	Xiaoqiao He
HDFS-14547	DirectoryWithQuotaFeature.quota costs additional memory even the storage type quota is not set.	Major	.	Jinglun	Jinglun
HDFS-14697	Backport HDFS-14513 to branch-2	Minor	namenode	Xiaoqiao He	Xiaoqiao He
YARN-8045	Reduce log output from container status calls	Major	.	Shane Kumpf	Craig Condit
HDFS-14313	Get hdfs used space from FsDatasetImpl#volumeMap#ReplicaInfo in memory instead of df/du	Major	datanode, performance	Lisheng Sun	Lisheng Sun
HDFS-14696	Backport HDFS-11273 to branch-2 (Move TransferFsImage#doGetUrl function to a Util class)	Major	.	Siyao Meng	Siyao Meng
HDFS-14370	Edit log tailing fast-path should allow for backoff	Major	namenode, qjm	Erik Krogen	Erik Krogen
YARN-9442	container working directory has group read permissions	Minor	yarn	Jim Brennan	Jim Brennan
HADOOP-16459	Backport [HADOOP-16266] “Add more fine-grained processing time metrics to the RPC layer” to branch-2	Major	.	Erik Krogen	Erik Krogen
HDFS-14707	Add JAVA_LIBRARY_PATH to HTTPFS startup options in branch-2	Major	httpfs	Masatake Iwasaki	Masatake Iwasaki
HDFS-14723	Add helper method FSNamesystem#setBlockManagerForTesting() in branch-2	Blocker	namenode	Wei-Chiu Chuang	Wei-Chiu Chuang
HDFS-14276	[SBN read] Reduce tailing overhead	Major	ha, namenode	Wei-Chiu Chuang	Ayush Saxena
HDFS-14617	Improve fsimage load time by writing sub-sections to the fsimage index	Major	namenode	Stephen O'Donnell	Stephen O'Donnell
YARN-9756	Create metric that sums total memory/vcores preempted per round	Major	capacity scheduler	Eric Payne	Manikandan R
HDFS-14633	The StorageType quota and consume in QuotaFeature is not handled for rename	Major	.	Jinglun	Jinglun
HADOOP-16439	Upgrade bundled Tomcat in branch-2	Major	httpfs, kms	Masatake Iwasaki	Masatake Iwasaki
YARN-9810	Add queue capacity/maxcapacity percentage metrics	Major	.	Jonathan Hung	Shubham Gupta
YARN-9763	Print application tags in application summary	Major	.	Jonathan Hung	Manoj Kumar
YARN-9764	Print application submission context label in application summary	Major	.	Jonathan Hung	Manoj Kumar
HADOOP-16530	Update xercesImpl in branch-2	Major	.	Wei-Chiu Chuang	Wei-Chiu Chuang
YARN-9824	Fall back to configured queue ordering policy class name	Major	.	Jonathan Hung	Jonathan Hung
YARN-9825	Changes for initializing placement rules with ResourceScheduler in branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9762	Add submission context label to audit logs	Major	.	Jonathan Hung	Manoj Kumar
HDFS-14667	Backport [HDFS-14403] “Cost-based FairCallQueue” to branch-2	Major	.	Erik Krogen	Erik Krogen

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-6896	Document wrong spelling in usage of MapredTestDriver tools.	Major	documentation	LiXin Ge	LiXin Ge
HDFS-12052	Set SWEBHDFS delegation token kind when ssl is enabled in HttpFS	Major	httpfs, webhdfs	Zoran Dimitrijevic	Zoran Dimitrijevic
HDFS-12318	Fix IOException condition for openInfo in DFSInputStream	Major	.	legend	legend
HDFS-12614	FSPermissionChecker#getINodeAttrs() throws NPE when INodeAttributesProvider configured	Major	.	Manoj Govindassamy	Manoj Govindassamy
YARN-7396	NPE when accessing container logs due to null dirsHandler	Major	.	Jonathan Hung	Jonathan Hung
YARN-7370	Preemption properties should be refreshable	Major	capacity scheduler, scheduler preemption	Eric Payne	Gergely Novák
YARN-7428	Add containerId to Localizer failed logs	Minor	nodemanager	Prabhu Joseph	Prabhu Joseph
YARN-7410	Cleanup FixedValueResource to avoid dependency to ResourceUtils	Major	resourcemanager	Sunil G	Wangda Tan
HDFS-12783	[branch-2] “dfsrouter” should use hdfsScript	Major	.	Brahma Reddy Battula	Brahma Reddy Battula
HDFS-12788	Reset the upload button when file upload fails	Critical	ui, webhdfs	Brahma Reddy Battula	Brahma Reddy Battula
YARN-7469	Capacity Scheduler Intra-queue preemption: User can starve if newest app is exactly at user limit	Major	capacity scheduler, yarn	Eric Payne	Eric Payne
HADOOP-14982	Clients using FailoverOnNetworkExceptionRetry can go into a loop if they're used without authenticating with kerberos in HA env	Major	common	Peter Bacsko	Peter Bacsko
YARN-7489	ConcurrentModificationException in RMAppImpl#getRMAppMetrics	Major	capacityscheduler	Tao Yang	Tao Yang
YARN-7525	Incorrect query parameters in cluster nodes REST API document	Minor	documentation	Tao Yang	Tao Yang
HDFS-12813	RequestHedgingProxyProvider can hide Exception thrown from the Namenode for proxy size of 1	Major	ha	Mukul Kumar Singh	Mukul Kumar Singh
HADOOP-15045	ISA-L build options are documented in branch-2	Major	build, documentation	Akira Ajisaka	Akira Ajisaka
HADOOP-15067	GC time percentage reported in JvmMetrics should be a gauge, not counter	Major	.	Misha Dmitriev	Misha Dmitriev
YARN-7363	ContainerLocalizer doesn't have a valid log4j config when using LinuxContainerExecutor	Major	nodemanager	Yufei Gu	Yufei Gu
HDFS-12754	Lease renewal can hit a deadlock	Major	.	Kuhu Shukla	Kuhu Shukla
HDFS-12832	INode.getFullPathName may throw ArrayIndexOutOfBoundsException lead to NameNode exit	Critical	namenode	DENG FEI	Konstantin Shvachko
HDFS-11754	Make FsServerDefaults cache configurable.	Minor	.	Rushabh Shah	Mikhail Erofeev
HADOOP-15042	Azure PageBlobInputStream.skip() can return negative value when numberOfPagesRemaining is 0	Minor	fs/azure	Rajesh Balamohan	Rajesh Balamohan
HDFS-12638	Delete copy-on-truncate block along with the original block, when deleting a file being truncated	Blocker	hdfs	Jiandan Yang	Konstantin Shvachko
YARN-4813	TestRMWebServicesDelegationTokenAuthentication.testDoAs fails intermittently	Major	resourcemanager	Daniel Templeton	Gergo Repas
MAPREDUCE-5124	AM lacks flow control for task events	Major	mr-am	Jason Darrell Lowe	Peter Bacsko
YARN-7455	quote_and_append_arg can overflow buffer	Major	nodemanager	Jason Darrell Lowe	Jim Brennan
YARN-7594	TestNMWebServices#testGetNMResourceInfo fails on trunk	Major	nodemanager, webapp	Gergely Novák	Gergely Novák
YARN-5594	Handle old RMDelegationToken format when recovering RM	Major	resourcemanager	Tatyana But	Robert Kanter
HADOOP-14985	Remove subversion related code from VersionInfoMojo.java	Minor	build	Akira Ajisaka	Ajay Kumar
HDFS-11751	DFSZKFailoverController daemon exits with wrong status code	Major	auto-failover	Doris Gu	Bharat Viswanadham
HDFS-12889	Router UI is missing robots.txt file	Major	.	Bharat Viswanadham	Bharat Viswanadham
YARN-7607	Remove the trailing duplicated timestamp in container diagnostics message	Minor	nodemanager	Weiwei Yang	Weiwei Yang
HADOOP-15080	Aliyun OSS: update oss sdk from 2.8.1 to 2.8.3 to remove its dependency on Cat-x “json-lib”	Blocker	fs/oss	Christopher Douglas	Sammi Chen
YARN-7608	Incorrect sTarget column causing DataTable warning on RM application and scheduler web page	Major	resourcemanager, webapp	Weiwei Yang	Gergely Novák
HDFS-12833	Distcp : Update the usage of delete option for dependency with update and overwrite option	Minor	distcp, hdfs	Harshakiran Reddy	usharani
YARN-7647	NM print inappropriate error log when node-labels is enabled	Minor	.	Yang Wang	Yang Wang
HDFS-12907	Allow read-only access to reserved raw for non-superusers	Major	namenode	Daryn Sharp	Rushabh Shah
HDFS-12881	Output streams closed with IOUtils suppressing write errors	Major	.	Jason Darrell Lowe	Ajay Kumar
YARN-7595	Container launching code suppresses close exceptions after writes	Major	nodemanager	Jason Darrell Lowe	Jim Brennan
HADOOP-15085	Output streams closed with IOUtils suppressing write errors	Major	.	Jason Darrell Lowe	Jim Brennan
HADOOP-15123	KDiag tries to load krb5.conf from KRB5CCNAME instead of KRB5_CONFIG	Minor	security	Vipin Rathor	Vipin Rathor
YARN-7661	NodeManager metrics return wrong value after update node resource	Major	.	Yang Wang	Yang Wang
HDFS-12347	TestBalancerRPCDelay#testBalancerRPCDelay fails very frequently	Critical	test	Xiao Chen	Bharat Viswanadham
YARN-7662	[Atsv2] Define new set of configurations for reader and collectors to bind.	Major	.	Rohith Sharma K S	Rohith Sharma K S
YARN-7674	Update Timeline Reader web app address in UI2	Major	.	Rohith Sharma K S	Sunil G
YARN-7542	Fix issue that causes some Running Opportunistic Containers to be recovered as PAUSED	Major	.	Arun Suresh	Sampada Dehankar
HADOOP-15143	NPE due to Invalid KerberosTicket in UGI	Major	.	Jitendra Nath Pandey	Mukul Kumar Singh
YARN-7692	Skip validating priority acls while recovering applications	Blocker	resourcemanager	Charan Hebri	Sunil G
MAPREDUCE-7028	Concurrent task progress updates causing NPE in Application Master	Blocker	mr-am	Gergo Repas	Gergo Repas
YARN-7619	Max AM Resource value in Capacity Scheduler UI has to be refreshed for every user	Major	capacity scheduler, yarn	Eric Payne	Eric Payne
YARN-7699	queueUsagePercentage is coming as INF for getApp REST api call	Major	webapp	Sunil G	Sunil G
HDFS-12985	NameNode crashes during restart after an OpenForWrite file present in the Snapshot got deleted	Major	hdfs	Manoj Govindassamy	Manoj Govindassamy
YARN-4227	Ignore expired containers from removed nodes in FairScheduler	Critical	fairscheduler	Wilfred Spiegelenburg	Wilfred Spiegelenburg
YARN-7508	NPE in FiCaSchedulerApp when debug log enabled in async-scheduling mode	Major	capacityscheduler	Tao Yang	Tao Yang
YARN-7663	RMAppImpl:Invalid event: START at KILLED	Major	resourcemanager	lujie	lujie
YARN-6948	Invalid event: ATTEMPT_ADDED at FINAL_SAVING	Major	yarn	lujie	lujie
HADOOP-15060	TestShellBasedUnixGroupsMapping.testFiniteGroupResolutionTime flaky	Major	.	Miklos Szegedi	Miklos Szegedi
YARN-7735	Fix typo in YARN documentation	Minor	documentation	Takanobu Asanuma	Takanobu Asanuma
YARN-7727	Incorrect log levels in few logs with QueuePriorityContainerCandidateSelector	Minor	yarn	Prabhu Joseph	Prabhu Joseph
HDFS-11915	Sync rbw dir on the first hsync() to avoid file lost on power failure	Critical	.	Kanaka Kumar Avvaru	Vinayakumar B
YARN-7705	Create the container log directory with correct sticky bit in C code	Major	nodemanager	Yufei Gu	Yufei Gu
HDFS-9049	Make Datanode Netty reverse proxy port to be configurable	Major	datanode	Vinayakumar B	Vinayakumar B
YARN-7758	Add an additional check to the validity of container and application ids passed to container-executor	Major	nodemanager	Miklos Szegedi	Yufei Gu
HADOOP-15150	in FsShell, UGI params should be overidden through env vars(-D arg)	Major	.	Brahma Reddy Battula	Brahma Reddy Battula
HADOOP-15181	Typo in SecureMode.md	Trivial	documentation	Masahiro Tanaka	Masahiro Tanaka
YARN-7806	Distributed Shell should use timeline async api's	Major	distributed-shell	Sumana Sathish	Rohith Sharma K S
HADOOP-15121	Encounter NullPointerException when using DecayRpcScheduler	Major	.	Tao Jie	Tao Jie
MAPREDUCE-7015	Possible race condition in JHS if the job is not loaded	Major	jobhistoryserver	Peter Bacsko	Peter Bacsko
YARN-7737	prelaunch.err file not found exception on container failure	Major	.	Jonathan Hung	Keqiu Hu
HDFS-13063	Fix the incorrect spelling in HDFSHighAvailabilityWithQJM.md	Trivial	documentation	Jianfei Jiang	Jianfei Jiang
YARN-7102	NM heartbeat stuck when responseId overflows MAX_INT	Critical	.	Botong Huang	Botong Huang
MAPREDUCE-7041	MR should not try to clean up at first job attempt	Major	.	Takanobu Asanuma	Gergo Repas
MAPREDUCE-7020	Task timeout in uber mode can crash AM	Major	mr-am	Akira Ajisaka	Peter Bacsko
YARN-7765	[Atsv2] GSSException: No valid credentials provided - Failed to find any Kerberos tgt thrown by Timelinev2Client & HBaseClient in NM	Blocker	.	Sumana Sathish	Rohith Sharma K S
HDFS-12974	Exception message is not printed when creating an encryption zone fails with AuthorizationException	Minor	encryption	fang zhenyi	fang zhenyi
YARN-7698	A misleading variable's name in ApplicationAttemptEventDispatcher	Minor	resourcemanager	Jinjiang Ling	Jinjiang Ling
HDFS-12528	Add an option to not disable short-circuit reads on failures	Major	hdfs-client, performance	Andre Araujo	Xiao Chen
HDFS-13100	Handle IllegalArgumentException when GETSERVERDEFAULTS is not implemented in webhdfs.	Critical	hdfs, webhdfs	Yongjun Zhang	Yongjun Zhang
YARN-7849	TestMiniYarnClusterNodeUtilization#testUpdateNodeUtilization fails due to heartbeat sync error	Major	test	Jason Darrell Lowe	Botong Huang
YARN-7801	AmFilterInitializer should addFilter after fill all parameters	Critical	.	Sumana Sathish	Wangda Tan
YARN-7890	NPE during container relaunch	Major	.	Billie Rinaldi	Jason Darrell Lowe
HDFS-13115	In getNumUnderConstructionBlocks(), ignore the inodeIds for which the inodes have been deleted	Major	.	Yongjun Zhang	Yongjun Zhang
HDFS-12935	Get ambiguous result for DFSAdmin command in HA mode when only one namenode is up	Major	tools	Jianfei Jiang	Jianfei Jiang
HDFS-13120	Snapshot diff could be corrupted after concat	Major	namenode, snapshots	Xiaoyu Yao	Xiaoyu Yao
HDFS-10453	ReplicationMonitor thread could stuck for long time due to the race between replication and delete of same file in a large cluster.	Major	namenode	Xiaoqiao He	Xiaoqiao He
HDFS-8693	refreshNamenodes does not support adding a new standby to a running DN	Critical	datanode, ha	Jian Fang	Ajith S
MAPREDUCE-7052	TestFixedLengthInputFormat#testFormatCompressedIn is flaky	Major	client, test	Peter Bacsko	Peter Bacsko
HDFS-13112	Token expiration edits may cause log corruption or deadlock	Critical	namenode	Daryn Sharp	Daryn Sharp
MAPREDUCE-7053	Timed out tasks can fail to produce thread dump	Major	.	Jason Darrell Lowe	Jason Darrell Lowe
HADOOP-15206	BZip2 drops and duplicates records when input split size is small	Major	.	Aki Tanaka	Aki Tanaka
YARN-7937	Fix http method name in Cluster Application Timeout Update API example request	Minor	docs, documentation	Charan Hebri	Charan Hebri
YARN-7947	Capacity Scheduler intra-queue preemption can NPE for non-schedulable apps	Major	capacity scheduler, scheduler preemption	Eric Payne	Eric Payne
YARN-7945	Java Doc error in UnmanagedAMPoolManager for branch-2	Major	.	Rohith Sharma K S	Botong Huang
HADOOP-14903	Add json-smart explicitly to pom.xml	Major	common	Ray Chiang	Ray Chiang
HADOOP-15236	Fix typo in RequestHedgingProxyProvider and RequestHedgingRMFailoverProxyProvider	Trivial	documentation	Akira Ajisaka	Gabor Bota
MAPREDUCE-7027	HadoopArchiveLogs shouldn't delete the original logs if the HAR creation fails	Critical	harchive	Gergely Novák	Gergely Novák
HDFS-12781	After Datanode down, In Namenode UI Datanode tab is throwing warning message.	Major	datanode	Harshakiran Reddy	Brahma Reddy Battula
HDFS-12070	Failed block recovery leaves files open indefinitely and at risk for data loss	Major	.	Daryn Sharp	Kihwal Lee
HADOOP-15251	Backport HADOOP-13514 (surefire upgrade) to branch-2	Major	test	Christopher Douglas	Christopher Douglas
HDFS-13194	CachePool permissions incorrectly checked	Major	.	Yiqun Lin	Jianfei Jiang
HADOOP-15276	branch-2 site not building after ADL troubleshooting doc added	Major	documentation	Steve Loughran	Steve Loughran
YARN-7835	[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
HADOOP-15275	Incorrect javadoc for return type of RetryPolicy#shouldRetry	Minor	documentation	Nanda kumar	Nanda kumar
YARN-7511	NPE in ContainerLocalizer when localization failed for running container	Major	nodemanager	Tao Yang	Tao Yang
MAPREDUCE-7023	TestHadoopArchiveLogs.testCheckFilesAndSeedApps fails on rerun	Minor	test	Gergely Novák	Gergely Novák
HADOOP-15283	Upgrade from findbugs 3.0.1 to spotbugs 3.1.2 in branch-2 to fix docker image build	Major	.	Xiao Chen	Akira Ajisaka
HADOOP-15286	Remove unused imports from TestKMSWithZK.java	Minor	test	Akira Ajisaka	Ajay Kumar
HDFS-13040	Kerberized inotify client fails despite kinit properly	Major	namenode	Wei-Chiu Chuang	Xiao Chen
YARN-7736	Fix itemization in YARN federation document	Minor	documentation	Akira Ajisaka	Sen Zhao
HDFS-13164	File not closed if streamer fail with DSQuotaExceededException	Major	hdfs-client	Xiao Chen	Xiao Chen
HDFS-13109	Support fully qualified hdfs path in EZ commands	Major	hdfs	Hanisha Koneru	Hanisha Koneru
MAPREDUCE-6930	mapreduce.map.cpu.vcores and mapreduce.reduce.cpu.vcores are both present twice in mapred-default.xml	Major	mrv2	Daniel Templeton	Sen Zhao
HDFS-10618	TestPendingReconstruction#testPendingAndInvalidate is flaky due to race condition	Major	.	Eric Badger	Eric Badger
HDFS-10803	TestBalancerWithMultipleNameNodes#testBalancing2OutOf3Blockpools fails intermittently due to no free space available	Major	.	Yiqun Lin	Yiqun Lin
HDFS-12156	TestFSImage fails without -Pnative	Major	test	Akira Ajisaka	Akira Ajisaka
HDFS-13261	Fix incorrect null value check	Minor	hdfs	Jianfei Jiang	Jianfei Jiang
HDFS-12886	Ignore minReplication for block recovery	Major	hdfs, namenode	Lukas Majercak	Lukas Majercak
YARN-8039	Clean up log dir configuration in TestLinuxContainerExecutorWithMocks.testStartLocalizer	Minor	.	Miklos Szegedi	Miklos Szegedi
HDFS-13296	GenericTestUtils generates paths with drive letter in Windows and fail webhdfs related test cases	Major	.	Xiao Liang	Xiao Liang
HDFS-13268	TestWebHdfsFileContextMainOperations fails on Windows	Major	.	Íñigo Goiri	Xiao Liang
YARN-8054	Improve robustness of the LocalDirsHandlerService MonitoringTimerTask thread	Major	.	Jonathan Turner Eagles	Jonathan Turner Eagles
YARN-7873	Revert YARN-6078	Blocker	.	Billie Rinaldi	Billie Rinaldi
HDFS-13195	DataNode conf page cannot display the current value after reconfig	Minor	datanode	maobaolong	maobaolong
YARN-8063	DistributedShellTimelinePlugin wrongly check for entityId instead of entityType	Major	.	Rohith Sharma K S	Rohith Sharma K S
YARN-8068	Application Priority field causes NPE in app timeline publish when Hadoop 2.7 based clients to 2.8+	Blocker	yarn	Sunil G	Sunil G
HADOOP-12862	LDAP Group Mapping over SSL can not specify trust store	Major	.	Wei-Chiu Chuang	Wei-Chiu Chuang
HADOOP-15317	Improve NetworkTopology chooseRandom's loop	Major	.	Xiao Chen	Xiao Chen
HADOOP-15355	TestCommonConfigurationFields is broken by HADOOP-15312	Major	test	Konstantin Shvachko	LiXin Ge
HDFS-13176	WebHdfs file path gets truncated when having semicolon (;) inside	Major	webhdfs	Zsolt Venczel	Zsolt Venczel
HADOOP-15375	Branch-2 pre-commit failed to build docker image	Major	.	Xiao Chen	Xiao Chen
HADOOP-15357	Configuration.getPropsWithPrefix no longer does variable substitution	Major	.	Jim Brennan	Jim Brennan
MAPREDUCE-7062	Update mapreduce.job.tags description for making use for ATSv2 purpose.	Major	.	Charan Hebri	Charan Hebri
YARN-8073	TimelineClientImpl doesn't honor yarn.timeline-service.versions configuration	Major	.	Rohith Sharma K S	Rohith Sharma K S
YARN-6629	NPE occurred when container allocation proposal is applied but its resource requests are removed before	Critical	.	Tao Yang	Tao Yang
HDFS-13427	Fix the section titles of transparent encryption document	Minor	documentation	Akira Ajisaka	Akira Ajisaka
YARN-7527	Over-allocate node resource in async-scheduling mode of CapacityScheduler	Major	capacityscheduler	Tao Yang	Tao Yang
HDFS-7101	Potential null dereference in DFSck#doWork()	Minor	.	Ted Yu	skrho
YARN-8120	JVM can crash with SIGSEGV when exiting due to custom leveldb logger	Major	nodemanager, resourcemanager	Jason Darrell Lowe	Jason Darrell Lowe
YARN-8147	TestClientRMService#testGetApplications sporadically fails	Major	test	Jason Darrell Lowe	Jason Darrell Lowe
HADOOP-14970	MiniHadoopClusterManager doesn't respect lack of format option	Minor	.	Erik Krogen	Erik Krogen
YARN-8156	Increase the default value of yarn.timeline-service.app-collector.linger-period.ms	Major	.	Rohith Sharma K S	Charan Hebri
YARN-8165	Incorrect queue name logging in AbstractContainerAllocator	Trivial	capacityscheduler	Weiwei Yang	Weiwei Yang
YARN-8164	Fix a potential NPE in AbstractSchedulerPlanFollower	Major	.	lujie	lujie
HDFS-12828	OIV ReverseXML Processor fails with escaped characters	Critical	hdfs	Erik Krogen	Erik Krogen
HADOOP-15180	branch-2 : daemon processes' sysout overwrites ‘ulimit -a’ in daemon's out file	Minor	scripts	Ranith Sardar	Ranith Sardar
HADOOP-15396	Some java source files are executable	Minor	.	Akira Ajisaka	Shashikant Banerjee
YARN-6827	[ATS1/1.5] NPE exception while publishing recovering applications into ATS during RM restart.	Major	resourcemanager	Rohith Sharma K S	Rohith Sharma K S
YARN-7786	NullPointerException while launching ApplicationMaster	Major	.	lujie	lujie
HDFS-13408	MiniDFSCluster to support being built on randomized base directory	Major	test	Xiao Liang	Xiao Liang
HADOOP-15390	Yarn RM logs flooded by DelegationTokenRenewer trying to renew KMS tokens	Critical	.	Xiao Chen	Xiao Chen
HDFS-13336	Test cases of TestWriteToReplica failed in windows	Major	.	Xiao Liang	Xiao Liang
YARN-7598	Document how to use classpath isolation for aux-services in YARN	Major	.	Xuan Gong	Xuan Gong
YARN-8183	Fix ConcurrentModificationException inside RMAppAttemptMetrics#convertAtomicLongMaptoLongMap	Critical	yarn	Sumana Sathish	Suma Shivaprasad
HADOOP-15385	Many tests are failing in hadoop-distcp project in branch-2	Critical	tools/distcp	Rushabh Shah	Jason Darrell Lowe
MAPREDUCE-7042	Killed MR job data does not move to mapreduce.jobhistory.done-dir when ATS v2 is enabled	Major	.	Yesha Vora	Xuan Gong
YARN-8205	Application State is not updated to ATS if AM launching is delayed.	Critical	.	Sumana Sathish	Rohith Sharma K S
MAPREDUCE-7072	mapred job -history prints duplicate counter in human output	Major	client	Wilfred Spiegelenburg	Wilfred Spiegelenburg
YARN-8221	RMWebServices also need to honor yarn.resourcemanager.display.per-user-apps	Major	webapp	Sunil G	Sunil G
HDFS-13509	Bug fix for breakHardlinks() of ReplicaInfo/LocalReplica, and fix TestFileAppend failures on Windows	Major	.	Xiao Liang	Xiao Liang
MAPREDUCE-7073	Optimize TokenCache#obtainTokensForNamenodesInternal	Major	.	Bibin Chundatt	Bibin Chundatt
YARN-8025	UsersManangers#getComputedResourceLimitForActiveUsers throws NPE due to preComputedActiveUserLimit is empty	Major	yarn	Jiandan Yang	Tao Yang
YARN-8232	RMContainer lost queue name when RM HA happens	Major	resourcemanager	Hu Ziqian	Hu Ziqian
HDFS-13537	TestHdfsHelper does not generate jceks path properly for relative path in Windows	Major	.	Xiao Liang	Xiao Liang
HADOOP-15446	WASB: PageBlobInputStream.skip breaks HBASE replication	Major	fs/azure	Thomas Marqardt	Thomas Marqardt
YARN-8244	TestContainerSchedulerQueuing.testStartMultipleContainers failed	Major	.	Miklos Szegedi	Jim Brennan
HDFS-13586	Fsync fails on directories on Windows	Critical	datanode, hdfs	Lukas Majercak	Lukas Majercak
HDFS-13590	Backport HDFS-12378 to branch-2	Major	datanode, hdfs, test	Lukas Majercak	Lukas Majercak
HADOOP-15478	WASB: hflush() and hsync() regression	Major	fs/azure	Thomas Marqardt	Thomas Marqardt
HADOOP-15450	Avoid fsync storm triggered by DiskChecker and handle disk full situation	Blocker	.	Kihwal Lee	Arpit Agarwal
HDFS-13601	Optimize ByteString conversions in PBHelper	Major	.	Andrew Wang	Andrew Wang
HDFS-13588	Fix TestFsDatasetImpl test failures on Windows	Major	.	Xiao Liang	Xiao Liang
YARN-8310	Handle old NMTokenIdentifier, AMRMTokenIdentifier, and ContainerTokenIdentifier formats	Major	.	Robert Kanter	Robert Kanter
YARN-8344	Missing nm.stop() in TestNodeManagerResync to fix testKillContainersOnResync	Major	.	Giovanni Matteo Fumarola	Giovanni Matteo Fumarola
YARN-8327	Fix TestAggregatedLogFormat#testReadAcontainerLogs1 on Windows	Major	log-aggregation	Giovanni Matteo Fumarola	Giovanni Matteo Fumarola
YARN-8346	Upgrading to 3.1 kills running containers with error “Opportunistic container queue is full”	Blocker	.	Rohith Sharma K S	Jason Darrell Lowe
HDFS-13611	Unsafe use of Text as a ConcurrentHashMap key in PBHelperClient	Major	.	Andrew Wang	Andrew Wang
HDFS-13618	Fix TestDataNodeFaultInjector test failures on Windows	Major	test	Xiao Liang	Xiao Liang
HADOOP-15473	Configure serialFilter in KeyProvider to avoid UnrecoverableKeyException caused by JDK-8189997	Critical	kms	Gabor Bota	Gabor Bota
HDFS-13626	Fix incorrect username when deny the setOwner operation	Minor	namenode	luhuachao	Zsolt Venczel
MAPREDUCE-7103	Fix TestHistoryViewerPrinter on windows due to a mismatch line separator	Minor	.	Giovanni Matteo Fumarola	Giovanni Matteo Fumarola
YARN-8359	Exclude containermanager.linux test classes on Windows	Major	.	Giovanni Matteo Fumarola	Jason Darrell Lowe
HDFS-13664	Refactor ConfiguredFailoverProxyProvider to make inheritance easier	Minor	hdfs-client	Chao Sun	Chao Sun
YARN-8405	RM zk-state-store.parent-path ACLs has been changed since HADOOP-14773	Major	.	Rohith Sharma K S	Íñigo Goiri
MAPREDUCE-7108	TestFileOutputCommitter fails on Windows	Minor	test	Zuoming Zhang	Zuoming Zhang
MAPREDUCE-7101	Add config parameter to allow JHS to alway scan user dir irrespective of modTime	Critical	.	Wangda Tan	Thomas Marqardt
YARN-8404	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
HDFS-13675	Speed up TestDFSAdminWithHA	Major	hdfs, namenode	Lukas Majercak	Lukas Majercak
HDFS-13673	TestNameNodeMetrics fails on Windows	Minor	test	Zuoming Zhang	Zuoming Zhang
HDFS-13676	TestEditLogRace fails on Windows	Minor	test	Zuoming Zhang	Zuoming Zhang
HADOOP-15523	Shell command timeout given is in seconds whereas it is taken as millisec while scheduling	Major	.	Bilwa S T	Bilwa S T
YARN-8444	NodeResourceMonitor crashes on bad swapFree value	Major	.	Jim Brennan	Jim Brennan
YARN-8457	Compilation is broken with -Pyarn-ui	Major	webapp	Sunil G	Sunil G
YARN-8401	[UI2] new ui is not accessible with out internet connection	Blocker	.	Bibin Chundatt	Bibin Chundatt
YARN-8451	Multiple NM heartbeat thread created when a slow NM resync with RM	Major	nodemanager	Botong Huang	Botong Huang
HADOOP-15548	Randomize local dirs	Minor	.	Jim Brennan	Jim Brennan
YARN-8473	Containers being launched as app tears down can leave containers in NEW state	Major	nodemanager	Jason Darrell Lowe	Jason Darrell Lowe
HDFS-13729	Fix broken links to RBF documentation	Minor	documentation	jwhitter	Gabor Bota
YARN-8515	container-executor can crash with SIGPIPE after nodemanager restart	Major	.	Jim Brennan	Jim Brennan
YARN-8421	when moving app, activeUsers is increased, even though app does not have outstanding request	Major	.	kyungwan nam
HADOOP-15614	TestGroupsCaching.testExceptionOnBackgroundRefreshHandled reliably fails	Major	.	Kihwal Lee	Weiwei Yang
YARN-4606	CapacityScheduler: applications could get starved because computation of #activeUsers considers pending apps	Critical	capacity scheduler, capacityscheduler	Karam Singh	Manikandan R
HADOOP-15637	LocalFs#listLocatedStatus does not filter out hidden .crc files	Minor	fs	Erik Krogen	Erik Krogen
HADOOP-15644	Hadoop Docker Image Pip Install Fails on branch-2	Critical	build	Haibo Chen	Haibo Chen
YARN-6966	NodeManager metrics may return wrong negative values when NM restart	Major	.	Yang Wang	Szilard Nemeth
YARN-8331	Race condition in NM container launched after done	Major	.	Yang Wang	Pradeep Ambati
HDFS-13758	DatanodeManager should throw exception if it has BlockRecoveryCommand but the block is not under construction	Major	namenode	Wei-Chiu Chuang	chencan
YARN-8612	Fix NM Collector Service Port issue in YarnConfiguration	Major	ATSv2	Prabha Manepalli	Prabha Manepalli
HADOOP-15674	Test failure TestSSLHttpServer.testExcludedCiphers with TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256 cipher suite	Major	common	Gabor Bota	Szilard Nemeth
YARN-8640	Restore previous state in container-executor after failure	Major	.	Jim Brennan	Jim Brennan
YARN-8679	[ATSv2] If HBase cluster is down for long time, high chances that NM ContainerManager dispatcher get blocked	Major	.	Rohith Sharma K S	Wangda Tan
HADOOP-14314	The OpenSolaris taxonomy link is dead in InterfaceClassification.md	Major	documentation	Daniel Templeton	Rui Gao
YARN-8649	NPE in localizer hearbeat processing if a container is killed while localizing	Major	.	lujie	lujie
HADOOP-10219	ipc.Client.setupIOstreams() needs to check for ClientCache.stopClient requested shutdowns	Major	ipc	Steve Loughran	Kihwal Lee
MAPREDUCE-7131	Job History Server has race condition where it moves files from intermediate to finished but thinks file is in intermediate	Major	.	Anthony Hsu	Anthony Hsu
HDFS-13836	RBF: Handle mount table znode with null value	Major	federation, hdfs	yanghuafeng	yanghuafeng
HDFS-12716	‘dfs.datanode.failed.volumes.tolerated’ to support minimum number of volumes to be available	Major	datanode	usharani	Ranith Sardar
YARN-8709	CS preemption monitor always fails since one under-served queue was deleted	Major	capacityscheduler, scheduler preemption	Tao Yang	Tao Yang
HDFS-13051	Fix dead lock during async editlog rolling if edit queue is full	Major	namenode	zhangwei	Daryn Sharp
HDFS-13914	Fix DN UI logs link broken when https is enabled after HDFS-13902	Minor	datanode	Jianfei Jiang	Jianfei Jiang
MAPREDUCE-7133	History Server task attempts REST API returns invalid data	Major	jobhistoryserver	Oleksandr Shevchenko	Oleksandr Shevchenko
YARN-8720	CapacityScheduler does not enforce max resource allocation check at queue level	Major	capacity scheduler, capacityscheduler, resourcemanager	Tarun Parimi	Tarun Parimi
HDFS-13844	Fix the fmt_bytes function in the dfs-dust.js	Minor	hdfs, ui	yanghuafeng	yanghuafeng
HADOOP-15755	StringUtils#createStartupShutdownMessage throws NPE when args is null	Major	.	Lokesh Jain	Dinesh Chitlangia
MAPREDUCE-3801	org.apache.hadoop.mapreduce.v2.app.TestRuntimeEstimators.testExponentialEstimator fails intermittently	Major	mrv2	Robert Joseph Evans	Jason Darrell Lowe
MAPREDUCE-7137	MRAppBenchmark.benchmark1() fails with NullPointerException	Minor	test	Oleksandr Shevchenko	Oleksandr Shevchenko
MAPREDUCE-7138	ThrottledContainerAllocator in MRAppBenchmark should implement RMHeartbeatHandler	Minor	test	Oleksandr Shevchenko	Oleksandr Shevchenko
HDFS-13908	TestDataNodeMultipleRegistrations is flaky	Major	.	Íñigo Goiri	Ayush Saxena
HADOOP-15772	Remove the ‘Path ... should be specified as a URI’ warnings on startup	Major	conf	Arpit Agarwal	Ayush Saxena
YARN-8804	resourceLimits may be wrongly calculated when leaf-queue is blocked in cluster with 3+ level queues	Critical	capacityscheduler	Tao Yang	Tao Yang
YARN-8774	Memory leak when CapacityScheduler allocates from reserved container with non-default label	Critical	capacityscheduler	Tao Yang	Tao Yang
YARN-8840	Add missing cleanupSSLConfig() call for TestTimelineClient test	Minor	test, timelineclient	Aki Tanaka	Aki Tanaka
HADOOP-15817	Reuse Object Mapper in KMSJSONReader	Major	kms	Jonathan Turner Eagles	Jonathan Turner Eagles
HADOOP-15820	ZStandardDecompressor native code sets an integer field as a long	Blocker	.	Jason Darrell Lowe	Jason Darrell Lowe
HDFS-13964	RBF: TestRouterWebHDFSContractAppend fails with No Active Namenode under nameservice	Major	.	Ayush Saxena	Ayush Saxena
HDFS-13768	Adding replicas to volume map makes DataNode start slowly	Major	.	Yiqun Lin	Surendra Singh Lilhore
HADOOP-15818	Fix deprecated maven-surefire-plugin configuration in hadoop-kms module	Minor	kms	Akira Ajisaka	Vidura Bhathiya Mudalige
HDFS-13802	RBF: Remove FSCK from Router Web UI	Major	.	Fei Hui	Fei Hui
HADOOP-15859	ZStandardDecompressor.c mistakes a class for an instance	Blocker	.	Ben Lau	Jason Darrell Lowe
HADOOP-15850	CopyCommitter#concatFileChunks should check that the blocks per chunk is not 0	Critical	tools/distcp	Ted Yu	Ted Yu
YARN-7502	Nodemanager restart docs should describe nodemanager supervised property	Major	documentation	Jason Darrell Lowe	Suma Shivaprasad
HADOOP-15866	Renamed HADOOP_SECURITY_GROUP_SHELL_COMMAND_TIMEOUT keys break compatibility	Blocker	.	Wei-Chiu Chuang	Wei-Chiu Chuang
YARN-8826	Fix lingering timeline collector after serviceStop in TimelineCollectorManager	Trivial	ATSv2	Prabha Manepalli	Prabha Manepalli
HADOOP-15822	zstd compressor can fail with a small output buffer	Major	.	Jason Darrell Lowe	Jason Darrell Lowe
HDFS-13959	TestUpgradeDomainBlockPlacementPolicy is flaky	Major	.	Ayush Saxena	Ayush Saxena
HADOOP-15899	Update AWS Java SDK versions in NOTICE.txt	Major	.	Akira Ajisaka	Akira Ajisaka
HADOOP-15900	Update JSch versions in LICENSE.txt	Major	.	Akira Ajisaka	Akira Ajisaka
HDFS-14043	Tolerate corrupted seen_txid file	Major	hdfs, namenode	Lukas Majercak	Lukas Majercak
YARN-8858	CapacityScheduler should respect maximum node resource when per-queue maximum-allocation is being used.	Major	.	Sumana Sathish	Wangda Tan
HDFS-14048	DFSOutputStream close() throws exception on subsequent call after DataNode restart	Major	hdfs-client	Erik Krogen	Erik Krogen
MAPREDUCE-7156	NullPointerException when reaching max shuffle connections	Major	mrv2	Peter Bacsko	Peter Bacsko
YARN-8233	NPE in CapacityScheduler#tryCommit when handling allocate/reserve proposal whose allocatedOrReservedContainer is null	Critical	capacityscheduler	Tao Yang	Tao Yang
HADOOP-15923	create-release script should set max-cache-ttl as well as default-cache-ttl for gpg-agent	Blocker	build	Akira Ajisaka	Akira Ajisaka
HADOOP-15930	Exclude MD5 checksum files from release artifact	Critical	build	Akira Ajisaka	Akira Ajisaka
HADOOP-15925	The config and log of gpg-agent are removed in create-release script	Major	build	Akira Ajisaka	Dinesh Chitlangia
HDFS-14056	Fix error messages in HDFS-12716	Minor	hdfs	Adam Antal	Ayush Saxena
YARN-7794	SLSRunner is not loading timeline service jars causing failure	Blocker	scheduler-load-simulator	Sunil G	Yufei Gu
HADOOP-16008	Fix typo in CommandsManual.md	Minor	.	Akira Ajisaka	Shweta
HADOOP-15973	Configuration: Included properties are not cached if resource is a stream	Critical	.	Eric Payne	Eric Payne
YARN-9175	Null resources check in ResourceInfo for branch-3.0	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-15992	JSON License is included in the transitive dependency of aliyun-sdk-oss 3.0.0	Blocker	.	Akira Ajisaka	Akira Ajisaka
HADOOP-16030	AliyunOSS: bring fixes back from HADOOP-15671	Blocker	fs/oss	wujinhu	wujinhu
YARN-9162	Fix TestRMAdminCLI#testHelp	Major	resourcemanager, test	Ayush Saxena	Ayush Saxena
YARN-8833	Avoid potential integer overflow when computing fair shares	Major	fairscheduler	liyakun	liyakun
HADOOP-16016	TestSSLFactory#testServerWeakCiphers sporadically fails in precommit builds	Major	security, test	Jason Darrell Lowe	Akira Ajisaka
HADOOP-16013	DecayRpcScheduler decay thread should run as a daemon	Major	ipc	Erik Krogen	Erik Krogen
YARN-8747	[UI2] YARN UI2 page loading failed due to js error under some time zone configuration	Critical	webapp	collinma	collinma
YARN-9210	RM nodes web page can not display node info	Blocker	yarn	Jiandan Yang	Jiandan Yang
YARN-7088	Add application launch time to Resource Manager REST API	Major	.	Abdullah Yousufi	Kanwaljeet Sachdev
YARN-9222	Print launchTime in ApplicationSummary	Major	.	Jonathan Hung	Jonathan Hung
YARN-6616	YARN AHS shows submitTime for jobs same as startTime	Minor	.	Prabhu Joseph	Prabhu Joseph
MAPREDUCE-7177	Disable speculative execution in TestDFSIO	Major	.	Kihwal Lee	Zhaohui Xin
YARN-9206	RMServerUtils does not count SHUTDOWN as an accepted state	Major	.	Kuhu Shukla	Kuhu Shukla
YARN-9283	Javadoc of LinuxContainerExecutor#addSchedPriorityCommand has a wrong property name as reference	Minor	documentation	Szilard Nemeth	Adam Antal
HADOOP-15813	Enable more reliable SSL connection reuse	Major	common	Daryn Sharp	Daryn Sharp
HDFS-14314	fullBlockReportLeaseId should be reset after registering to NN	Critical	datanode	star	star
YARN-5714	ContainerExecutor does not order environment map	Trivial	nodemanager	Remi Catherinot	Remi Catherinot
HADOOP-16192	CallQueue backoff bug fixes: doesn‘t perform backoff when add() is used, and doesn’t update backoff when refreshed	Major	ipc	Erik Krogen	Erik Krogen
HDFS-14399	Backport HDFS-10536 to branch-2	Critical	.	Chao Sun	Chao Sun
HDFS-14407	Fix misuse of SLF4j logging API in DatasetVolumeChecker#checkAllVolumes	Minor	.	Wanqiang Ji	Wanqiang Ji
HDFS-14414	Clean up findbugs warning in branch-2	Major	.	Wei-Chiu Chuang	Dinesh Chitlangia
HADOOP-14544	DistCp documentation for command line options is misaligned.	Minor	documentation	Chris Nauroth	Masatake Iwasaki
HDFS-10477	Stop decommission a rack of DataNodes caused NameNode fail over to standby	Major	namenode	yunjiong zhao	yunjiong zhao
HDFS-13677	Dynamic refresh Disk configuration results in overwriting VolumeMap	Blocker	.	xuzq	xuzq
YARN-9285	RM UI progress column is of wrong type	Minor	yarn	Ahmed Hussein	Ahmed Hussein
HDFS-14500	NameNode StartupProgress continues to report edit log segments after the LOADING_EDITS phase is finished	Major	namenode	Erik Krogen	Erik Krogen
HADOOP-16331	Fix ASF License check in pom.xml	Major	.	Wanqiang Ji	Akira Ajisaka
HDFS-14514	Actual read size of open file in encryption zone still larger than listing size even after enabling HDFS-11402 in Hadoop 2	Major	encryption, hdfs, snapshots	Siyao Meng	Siyao Meng
HDFS-14512	ONE_SSD policy will be violated while write data with DistributedFileSystem.create(....favoredNodes)	Major	.	Shen Yinjie	Ayush Saxena
HDFS-14521	Suppress setReplication logging.	Major	.	Kihwal Lee	Kihwal Lee
YARN-8625	Aggregate Resource Allocation for each job is not present in ATS	Major	ATSv2	Prabhu Joseph	Prabhu Joseph
HADOOP-16345	Potential NPE when instantiating FairCallQueue metrics	Major	ipc	Erik Krogen	Erik Krogen
HDFS-14494	Move Server logging of StatedId inside receiveRequestState()	Major	.	Konstantin Shvachko	Shweta
HDFS-14535	The default 8KB buffer in requestFileDescriptors#BufferedOutputStream is causing lots of heap allocation in HBase when using short-circut read	Major	hdfs-client	Zheng Hu	Zheng Hu
HDFS-13730	BlockReaderRemote.sendReadResult throws NPE	Major	hdfs-client	Wei-Chiu Chuang	Yuanbo Liu
HDFS-13770	dfsadmin -report does not always decrease “missing blocks (with replication factor 1)” metrics when file is deleted	Major	hdfs	Kitti Nanasi	Kitti Nanasi
HDFS-14101	Random failure of testListCorruptFilesCorruptedBlock	Major	test	Kihwal Lee	Zsolt Venczel
HDFS-14465	When the Block expected replications is larger than the number of DataNodes, entering maintenance will never exit.	Major	.	Yicong Cai	Yicong Cai
HDFS-14541	When evictableMmapped or evictable size is zero, do not throw NoSuchElementException	Major	hdfs-client, performance	Zheng Hu	Lisheng Sun
HDFS-14629	Property value Hard Coded in DNConf.java	Trivial	.	hemanthboyina	hemanthboyina
HDFS-12703	Exceptions are fatal to decommissioning monitor	Critical	namenode	Daryn Sharp	Xiaoqiao He
HDFS-12748	NameNode memory leak when accessing webhdfs GETHOMEDIRECTORY	Major	hdfs	Jiandan Yang	Weiwei Yang
HADOOP-16386	FindBugs warning in branch-2: GlobalStorageStatistics defines non-transient non-serializable instance field map	Major	fs	Wei-Chiu Chuang	Masatake Iwasaki
MAPREDUCE-6521	MiniMRYarnCluster should not create /tmp/hadoop-yarn/staging on local filesystem in unit test	Major	test	Masatake Iwasaki	Masatake Iwasaki
MAPREDUCE-7076	TestNNBench#testNNBenchCreateReadAndDelete failing in our internal build	Minor	test	Rushabh Shah	kevin su
YARN-9668	UGI conf doesn't read user overridden configurations on RM and NM startup	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-9844	NPE when trying to create an error message response of SASL RPC	Major	ipc	Steve Loughran	Steve Loughran
HADOOP-16245	Enabling SSL within LdapGroupsMapping can break system SSL configs	Major	common, security	Erik Krogen	Erik Krogen
HDFS-14660	[SBN Read] ObserverNameNode should throw StandbyException for requests not from ObserverProxyProvider	Major	.	Chao Sun	Chao Sun
HDFS-14429	Block remain in COMMITTED but not COMPLETE caused by Decommission	Major	.	Yicong Cai	Yicong Cai
HDFS-14672	Backport HDFS-12703 to branch-2	Major	namenode	Xiaoqiao He	Xiaoqiao He
HADOOP-16435	RpcMetrics should not be retained forever	Critical	rpc-server	Zoltan Haindrich	Zoltan Haindrich
HDFS-14464	Remove unnecessary log message from DFSInputStream	Trivial	.	Kihwal Lee	Chao Sun
HDFS-14569	Result of crypto -listZones is not formatted properly	Major	.	hemanthboyina	hemanthboyina
YARN-9596	QueueMetrics has incorrect metrics when labelled partitions are involved	Major	capacity scheduler	Muhammad Samir Khan	Muhammad Samir Khan
HADOOP-15237	In KMS docs there should be one space between KMS_LOG and NOTE	Minor	kms	Snigdhanjali Mishra	Snigdhanjali Mishra
HDFS-14462	WebHDFS throws “Error writing request body to server” instead of DSQuotaExceededException	Major	webhdfs	Erik Krogen	Simbarashe Dzinamarira
HDFS-14631	The DirectoryScanner doesn't fix the wrongly placed replica.	Major	.	Jinglun	Jinglun
HDFS-14724	Fix JDK7 compatibility in branch-2	Blocker	.	Wei-Chiu Chuang	Chen Liang
HDFS-14423	Percent (%) and plus (+) characters no longer work in WebHDFS	Major	webhdfs	Jing Wang	Masatake Iwasaki
HDFS-13101	Yet another fsimage corruption related to snapshot	Major	snapshots	Yongjun Zhang	Shashikant Banerjee
HDFS-14311	Multi-threading conflict at layoutVersion when loading block pool storage	Major	rolling upgrades	Yicong Cai	Yicong Cai
HADOOP-16494	Add SHA-256 or SHA-512 checksum to release artifacts to comply with the release distribution policy	Blocker	build	Akira Ajisaka	Akira Ajisaka
HDFS-13977	NameNode can kill itself if it tries to send too many txns to a QJM simultaneously	Major	namenode, qjm	Erik Krogen	Erik Krogen
YARN-9438	launchTime not written to state store for running applications	Major	.	Jonathan Hung	Jonathan Hung
YARN-7585	NodeManager should go unhealthy when state store throws DBException	Major	nodemanager	Wilfred Spiegelenburg	Wilfred Spiegelenburg
HDFS-14726	Fix JN incompatibility issue in branch-2 due to backport of HDFS-10519	Blocker	journal-node	Chen Liang	Chen Liang
YARN-9806	TestNMSimulator#testNMSimulator fails in branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9820	RM logs InvalidStateTransitionException when app is submitted	Critical	.	Rohith Sharma K S	Prabhu Joseph
HDFS-14303	check block directory logic not correct when there is only meta file, print no meaning warn log	Minor	datanode, hdfs	qiang Liu	qiang Liu
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
YARN-9858	Optimize RMContext getExclusiveEnforcedPartitions	Major	.	Jonathan Hung	Jonathan Hung
HDFS-14655	[SBN Read] Namenode crashes if one of The JN is down	Critical	.	Harshakiran Reddy	Ayush Saxena
HDFS-14245	Class cast error in GetGroups with ObserverReadProxyProvider	Major	.	Shen Yinjie	Erik Krogen
HDFS-14509	DN throws InvalidToken due to inequality of password when upgrade NN 2.x to 3.x	Blocker	.	Yuxuan Wang	Yuxuan Wang
HADOOP-16655	Change cipher suite when fetching tomcat tarball for branch-2	Major	.	Jonathan Hung	Jonathan Hung

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-13337	Backport HDFS-4275 to branch-2.9	Minor	.	Íñigo Goiri	Xiao Liang
HDFS-13503	Fix TestFsck test failures on Windows	Major	hdfs	Xiao Liang	Xiao Liang
HDFS-13542	TestBlockManager#testNeededReplicationWhileAppending fails due to improper cluster shutdown in TestBlockManager#testBlockManagerMachinesArray on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13551	TestMiniDFSCluster#testClusterSetStorageCapacity does not shut down cluster	Minor	.	Anbang Hu	Anbang Hu
HDFS-11700	TestHDFSServerPorts#testBackupNodePorts doesn't pass on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13548	TestResolveHdfsSymlink#testFcResolveAfs fails on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13567	TestNameNodeMetrics#testGenerateEDEKTime,TestNameNodeMetrics#testResourceCheck should use a different cluster basedir	Minor	.	Anbang Hu	Anbang Hu
HDFS-13557	TestDFSAdmin#testListOpenFiles fails on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13550	TestDebugAdmin#testComputeMetaCommand fails on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13559	TestBlockScanner does not close TestContext properly	Minor	.	Anbang Hu	Anbang Hu
HDFS-13570	TestQuotaByStorageType,TestQuota,TestDFSOutputStream fail on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13558	TestDatanodeHttpXFrame does not shut down cluster	Minor	.	Anbang Hu	Anbang Hu
HDFS-13554	TestDatanodeRegistration#testForcedRegistration does not shut down cluster	Minor	.	Anbang Hu	Anbang Hu
HDFS-13556	TestNestedEncryptionZones does not shut down cluster	Minor	.	Anbang Hu	Anbang Hu
HDFS-13560	Insufficient system resources exist to complete the requested service for some tests on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13592	TestNameNodePrunesMissingStorages#testNameNodePrunesUnreportedStorages does not shut down cluster properly	Minor	.	Anbang Hu	Anbang Hu
HDFS-13593	TestBlockReaderLocalLegacy#testBlockReaderLocalLegacyWithAppend fails on Windows	Minor	test	Anbang Hu	Anbang Hu
HDFS-13587	TestQuorumJournalManager fails on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13620	Randomize the test directory path for TestHDFSFileSystemContract	Minor	.	Anbang Hu	Anbang Hu
HDFS-13591	TestDFSShell#testSetrepLow fails on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13632	Randomize baseDir for MiniJournalCluster in MiniQJMHACluster for TestDFSAdminWithHA	Minor	.	Anbang Hu	Anbang Hu
MAPREDUCE-7102	Fix TestJavaSerialization for Windows due a mismatch line separator	Minor	.	Giovanni Matteo Fumarola	Giovanni Matteo Fumarola
HDFS-13652	Randomize baseDir for MiniDFSCluster in TestBlockScanner	Minor	.	Anbang Hu	Anbang Hu
YARN-8370	Some Node Manager tests fail on Windows due to improper path/file separator	Minor	.	Anbang Hu	Anbang Hu
YARN-8422	TestAMSimulator failing with NPE	Minor	.	Giovanni Matteo Fumarola	Giovanni Matteo Fumarola
HADOOP-15532	TestBasicDiskValidator fails with NoSuchFileException	Minor	.	Íñigo Goiri	Giovanni Matteo Fumarola
HDFS-13563	TestDFSAdminWithHA times out on Windows	Minor	.	Anbang Hu	Lukas Majercak
HDFS-13681	Fix TestStartup.testNNFailToStartOnReadOnlyNNDir test failure on Windows	Major	test	Xiao Liang	Xiao Liang
YARN-8944	TestContainerAllocation.testUserLimitAllocationMultipleContainers failure after YARN-8896	Minor	capacity scheduler	Wilfred Spiegelenburg	Wilfred Spiegelenburg
HDFS-11950	Disable libhdfs zerocopy test on Mac	Minor	libhdfs	John Zhuge	Akira Ajisaka

SUB-TASKS:

JIRA	Summary	Priority	Component	Reporter	Contributor
YARN-4081	Add support for multiple resource types in the Resource class	Major	resourcemanager	Varun Vasudev	Varun Vasudev
YARN-4172	Extend DominantResourceCalculator to account for all resources	Major	resourcemanager	Varun Vasudev	Varun Vasudev
YARN-4715	Add support to read resource types from a config file	Major	nodemanager, resourcemanager	Varun Vasudev	Varun Vasudev
YARN-4829	Add support for binary units	Major	nodemanager, resourcemanager	Varun Vasudev	Varun Vasudev
YARN-4830	Add support for resource types in the nodemanager	Major	nodemanager	Varun Vasudev	Varun Vasudev
YARN-5242	Update DominantResourceCalculator to consider all resource types in calculations	Major	resourcemanager	Varun Vasudev	Varun Vasudev
YARN-5586	Update the Resources class to consider all resource types	Major	nodemanager, resourcemanager	Varun Vasudev	Varun Vasudev
YARN-6761	Fix build for YARN-3926 branch	Major	nodemanager, resourcemanager	Varun Vasudev	Varun Vasudev
YARN-6786	ResourcePBImpl imports cleanup	Trivial	resourcemanager	Daniel Templeton	Yeliang Cang
YARN-6788	Improve performance of resource profile branch	Blocker	nodemanager, resourcemanager	Sunil G	Sunil G
YARN-6994	Remove last uses of Long from resource types code	Minor	resourcemanager	Daniel Templeton	Daniel Templeton
YARN-6892	Improve API implementation in Resources and DominantResourceCalculator class	Major	nodemanager, resourcemanager	Sunil G	Sunil G
YARN-6610	DominantResourceCalculator#getResourceAsValue dominant param is updated to handle multiple resources	Critical	resourcemanager	Daniel Templeton	Daniel Templeton
YARN-7030	Performance optimizations in Resource and ResourceUtils class	Critical	nodemanager, resourcemanager	Wangda Tan	Wangda Tan
YARN-7042	Clean up unit tests after YARN-6610	Major	test	Daniel Templeton	Daniel Templeton
YARN-6789	Add Client API to get all supported resource types from RM	Major	nodemanager, resourcemanager	Sunil G	Sunil G
YARN-6781	ResourceUtils#initializeResourcesMap takes an unnecessary Map parameter	Minor	resourcemanager	Daniel Templeton	Yu-Tang Lin
YARN-7067	Optimize ResourceType information display in UI	Critical	nodemanager, resourcemanager	Wangda Tan	Wangda Tan
YARN-7039	Fix javac and javadoc errors in YARN-3926 branch	Major	nodemanager, resourcemanager	Sunil G	Sunil G
YARN-7093	Improve log message in ResourceUtils	Trivial	nodemanager, resourcemanager	Sunil G	Sunil G
YARN-6933	ResourceUtils.DISALLOWED_NAMES check is duplicated	Major	resourcemanager	Daniel Templeton	Manikandan R
YARN-7137	Move newly added APIs to unstable in YARN-3926 branch	Blocker	nodemanager, resourcemanager	Wangda Tan	Wangda Tan
HADOOP-14799	Update nimbus-jose-jwt to 4.41.1	Major	.	Ray Chiang	Ray Chiang
YARN-7345	GPU Isolation: Incorrect minor device numbers written to devices.deny file	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-14997	Add hadoop-aliyun as dependency of hadoop-cloud-storage	Minor	fs/oss	Genmao Yu	Genmao Yu
YARN-7143	FileNotFound handling in ResourceUtils is inconsistent	Major	resourcemanager	Daniel Templeton	Daniel Templeton
YARN-6909	Use LightWeightedResource when number of resource types more than two	Critical	resourcemanager	Daniel Templeton	Sunil G
HDFS-12801	RBF: Set MountTableResolver as default file resolver	Minor	.	Íñigo Goiri	Íñigo Goiri
YARN-7430	Enable user re-mapping for Docker containers by default	Blocker	security, yarn	Eric Yang	Eric Yang
HADOOP-15024	AliyunOSS: support user agent configuration and include that & Hadoop version information to oss server	Major	fs, fs/oss	Sammi Chen	Sammi Chen
HDFS-12858	RBF: Add router admin commands usage in HDFS commands reference doc	Minor	documentation	Yiqun Lin	Yiqun Lin
HDFS-12835	RBF: Fix Javadoc parameter errors	Minor	.	Wei Yan	Wei Yan
YARN-7573	Gpu Information page could be empty for nodes without GPU	Major	webapp, yarn-ui-v2	Sunil G	Sunil G
HDFS-12396	Webhdfs file system should get delegation token from kms provider.	Major	encryption, kms, webhdfs	Rushabh Shah	Rushabh Shah
YARN-6704	Add support for work preserving NM restart when FederationInterceptor is enabled in AMRMProxyService	Major	.	Botong Huang	Botong Huang
HDFS-12875	RBF: Complete logic for -readonly option of dfsrouteradmin add command	Major	.	Yiqun Lin	Íñigo Goiri
YARN-7383	Node resource is not parsed correctly for resource names containing dot	Major	nodemanager, resourcemanager	Jonathan Hung	Gergely Novák
YARN-7630	Fix AMRMToken rollover handling in AMRMProxy	Minor	.	Botong Huang	Botong Huang
HDFS-12937	RBF: Add more unit tests for router admin commands	Major	test	Yiqun Lin	Yiqun Lin
YARN-7032	[ATSv2] NPE while starting hbase co-processor when HBase authorization is enabled.	Critical	.	Rohith Sharma K S	Rohith Sharma K S
HDFS-12988	RBF: Mount table entries not properly updated in the local cache	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-12802	RBF: Control MountTableResolver cache size	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-12934	RBF: Federation supports global quota	Major	.	Yiqun Lin	Yiqun Lin
HDFS-12972	RBF: Display mount table quota info in Web UI and admin command	Major	.	Yiqun Lin	Yiqun Lin
YARN-6736	Consider writing to both ats v1 & v2 from RM for smoother upgrades	Major	timelineserver	Vrushali C	Aaron Gresch
HADOOP-15027	AliyunOSS: Support multi-thread pre-read to improve sequential read from Hadoop to Aliyun OSS performance	Major	fs/oss	wujinhu	wujinhu
HDFS-12973	RBF: Document global quota supporting in federation	Major	.	Yiqun Lin	Yiqun Lin
HDFS-13028	RBF: Fix spurious TestRouterRpc#testProxyGetStats	Minor	.	Íñigo Goiri	Íñigo Goiri
HDFS-12772	RBF: Federation Router State State Store internal API	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13042	RBF: Heartbeat Router State	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13049	RBF: Inconsistent Router OPTS config in branch-2 and branch-3	Minor	.	Wei Yan	Wei Yan
YARN-7817	Add Resource reference to RM's NodeInfo object so REST API can get non memory/vcore resource usages.	Major	.	Sumana Sathish	Sunil G
HDFS-12574	Add CryptoInputStream to WebHdfsFileSystem read call.	Major	encryption, kms, webhdfs	Rushabh Shah	Rushabh Shah
HDFS-13044	RBF: Add a safe mode for the Router	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13043	RBF: Expose the state of the Routers in the federation	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13068	RBF: Add router admin option to manage safe mode	Major	.	Íñigo Goiri	Yiqun Lin
YARN-7860	Fix UT failure TestRMWebServiceAppsNodelabel#testAppsRunning	Major	.	Weiwei Yang	Sunil G
HDFS-13119	RBF: Manage unavailable clusters	Major	.	Íñigo Goiri	Yiqun Lin
YARN-7223	Document GPU isolation feature	Blocker	.	Wangda Tan	Wangda Tan
HDFS-13187	RBF: Fix Routers information shown in the web UI	Minor	.	Wei Yan	Wei Yan
HDFS-13184	RBF: Improve the unit test TestRouterRPCClientRetries	Minor	test	Yiqun Lin	Yiqun Lin
HDFS-13199	RBF: Fix the hdfs router page missing label icon issue	Major	federation, hdfs	maobaolong	maobaolong
HADOOP-15090	Add ADL troubleshooting doc	Major	documentation, fs/adl	Steve Loughran	Steve Loughran
YARN-7919	Refactor timelineservice-hbase module into submodules	Major	timelineservice	Haibo Chen	Haibo Chen
YARN-8003	Backport the code structure changes in YARN-7346 to branch-2	Major	.	Haibo Chen	Haibo Chen
HDFS-13214	RBF: Complete document of Router configuration	Major	.	Tao Jie	Yiqun Lin
HADOOP-15267	S3A multipart upload fails when SSE-C encryption is enabled	Critical	fs/s3	Anis Elleuch	Anis Elleuch
HDFS-13230	RBF: ConnectionManager‘s cleanup task will compare each pool’s own active conns with its total conns	Minor	.	Wei Yan	Chao Sun
HDFS-13233	RBF: MountTableResolver doesn't return the correct mount point of the given path	Major	hdfs	wangzhiyuan	wangzhiyuan
HDFS-13212	RBF: Fix router location cache issue	Major	federation, hdfs	Wu Weiwei	Wu Weiwei
HDFS-13232	RBF: ConnectionPool should return first usable connection	Minor	.	Wei Yan	Ekanth Sethuramalingam
HDFS-13240	RBF: Update some inaccurate document descriptions	Minor	.	Yiqun Lin	Yiqun Lin
HDFS-11399	Many tests fails in Windows due to injecting disk failures	Major	.	Yiqun Lin	Yiqun Lin
HDFS-13241	RBF: TestRouterSafemode failed if the port 8888 is in use	Major	hdfs, test	maobaolong	maobaolong
HDFS-13253	RBF: Quota management incorrect parent-child relationship judgement	Major	.	Yiqun Lin	Yiqun Lin
HDFS-13226	RBF: Throw the exception if mount table entry validated failed	Major	hdfs	maobaolong	maobaolong
HADOOP-15308	TestConfiguration fails on Windows because of paths	Major	test	Íñigo Goiri	Xiao Liang
HDFS-12773	RBF: Improve State Store FS implementation	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13198	RBF: RouterHeartbeatService throws out CachedStateStore related exceptions when starting router	Minor	.	Wei Yan	Wei Yan
HDFS-13224	RBF: Resolvers to support mount points across multiple subclusters	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13299	RBF : Fix compilation error in branch-2 (TestMultipleDestinationResolver)	Blocker	.	Brahma Reddy Battula	Brahma Reddy Battula
HADOOP-15262	AliyunOSS: move files under a directory in parallel when rename a directory	Major	fs/oss	wujinhu	wujinhu
HDFS-13215	RBF: Move Router to its own module	Major	.	Íñigo Goiri	Wei Yan
HDFS-13307	RBF: Improve the use of setQuota command	Major	.	liuhongtong	liuhongtong
HDFS-13250	RBF: Router to manage requests across multiple subclusters	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13318	RBF: Fix FindBugs in hadoop-hdfs-rbf	Minor	.	Íñigo Goiri	Ekanth Sethuramalingam
HDFS-12792	RBF: Test Router-based federation using HDFSContract	Major	.	Íñigo Goiri	Íñigo Goiri
YARN-7581	HBase filters are not constructed correctly in ATSv2	Major	ATSv2	Haibo Chen	Haibo Chen
YARN-7986	ATSv2 REST API queries do not return results for uppercase application tags	Critical	.	Charan Hebri	Charan Hebri
HDFS-12512	RBF: Add WebHDFS	Major	fs	Íñigo Goiri	Wei Yan
HDFS-13291	RBF: Implement available space based OrderResolver	Major	.	Yiqun Lin	Yiqun Lin
HDFS-13204	RBF: Optimize name service safe mode icon	Minor	.	liuhongtong	liuhongtong
HDFS-13352	RBF: Add xsl stylesheet for hdfs-rbf-default.xml	Major	documentation	Takanobu Asanuma	Takanobu Asanuma
YARN-8010	Add config in FederationRMFailoverProxy to not bypass facade cache when failing over	Minor	.	Botong Huang	Botong Huang
HDFS-13347	RBF: Cache datanode reports	Minor	.	Íñigo Goiri	Íñigo Goiri
HDFS-13289	RBF: TestConnectionManager#testCleanup() test case need correction	Minor	.	Dibyendu Karmakar	Dibyendu Karmakar
HDFS-13364	RBF: Support NamenodeProtocol in the Router	Major	.	Íñigo Goiri	Íñigo Goiri
HADOOP-14651	Update okhttp version to 2.7.5	Major	fs/adl	Ray Chiang	Ray Chiang
YARN-6936	[Atsv2] Retrospect storing entities into sub application table from client perspective	Major	.	Rohith Sharma K S	Rohith Sharma K S
HDFS-13353	RBF: TestRouterWebHDFSContractCreate failed	Major	test	Takanobu Asanuma	Takanobu Asanuma
YARN-8107	Give an informative message when incorrect format is used in ATSv2 filter attributes	Major	ATSv2	Charan Hebri	Rohith Sharma K S
YARN-8110	AMRMProxy recover should catch for all throwable to avoid premature exit	Major	.	Botong Huang	Botong Huang
HDFS-13402	RBF: Fix java doc for StateStoreFileSystemImpl	Minor	hdfs	Yiran Wu	Yiran Wu
HDFS-13380	RBF: mv/rm fail after the directory exceeded the quota limit	Major	.	Wu Weiwei	Yiqun Lin
HDFS-13410	RBF: Support federation with no subclusters	Minor	.	Íñigo Goiri	Íñigo Goiri
HDFS-13384	RBF: Improve timeout RPC call mechanism	Minor	.	Íñigo Goiri	Íñigo Goiri
HDFS-13045	RBF: Improve error message returned from subcluster	Minor	.	Wei Yan	Íñigo Goiri
HDFS-13428	RBF: Remove LinkedList From StateStoreFileImpl.java	Trivial	federation	David Mollitor	David Mollitor
HADOOP-14999	AliyunOSS: provide one asynchronous multi-part based uploading mechanism	Major	fs/oss	Genmao Yu	Genmao Yu
YARN-7810	TestDockerContainerRuntime test failures due to UID lookup of a non-existent user	Major	.	Shane Kumpf	Shane Kumpf
HDFS-13435	RBF: Improve the error loggings for printing the stack trace	Major	.	Yiqun Lin	Yiqun Lin
YARN-7189	Container-executor doesn't remove Docker containers that error out early	Major	yarn	Eric Badger	Eric Badger
HDFS-13466	RBF: Add more router-related information to the UI	Minor	.	Wei Yan	Wei Yan
HDFS-13453	RBF: getMountPointDates should fetch latest subdir time/date when parent dir is not present but /parent/child dirs are present in mount table	Major	.	Dibyendu Karmakar	Dibyendu Karmakar
HDFS-13478	RBF: Disabled Nameservice store API	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13490	RBF: Fix setSafeMode in the Router	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13484	RBF: Disable Nameservices from the federation	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13326	RBF: Improve the interfaces to modify and view mount tables	Minor	.	Wei Yan	Gang Li
HDFS-13499	RBF: Show disabled name services in the UI	Minor	.	Íñigo Goiri	Íñigo Goiri
YARN-8215	ATS v2 returns invalid YARN_CONTAINER_ALLOCATED_HOST_HTTP_ADDRESS from NM	Critical	ATSv2	Yesha Vora	Rohith Sharma K S
HDFS-13508	RBF: Normalize paths (automatically) when adding, updating, removing or listing mount table entries	Minor	.	Ekanth Sethuramalingam	Ekanth Sethuramalingam
HDFS-13434	RBF: Fix dead links in RBF document	Major	documentation	Akira Ajisaka	Chetna Chaudhari
HDFS-13488	RBF: Reject requests when a Router is overloaded	Major	.	Íñigo Goiri	Íñigo Goiri
HDFS-13525	RBF: Add unit test TestStateStoreDisabledNameservice	Major	.	Yiqun Lin	Yiqun Lin
YARN-8253	HTTPS Ats v2 api call fails with “bad HTTP parsed”	Critical	ATSv2	Yesha Vora	Charan Hebri
HADOOP-15454	TestRollingFileSystemSinkWithLocal fails on Windows	Major	test	Xiao Liang	Xiao Liang
HDFS-13346	RBF: Fix synchronization of router quota and nameservice quota	Major	.	liuhongtong	Yiqun Lin
YARN-8247	Incorrect HTTP status code returned by ATSv2 for non-whitelisted users	Critical	ATSv2	Charan Hebri	Rohith Sharma K S
YARN-8130	Race condition when container events are published for KILLED applications	Major	ATSv2	Charan Hebri	Rohith Sharma K S
YARN-7900	[AMRMProxy] AMRMClientRelayer for stateful FederationInterceptor	Major	.	Botong Huang	Botong Huang
HADOOP-15498	TestHadoopArchiveLogs (#testGenerateScript, #testPrepareWorkingDir) fails on Windows	Minor	.	Anbang Hu	Anbang Hu
HADOOP-15497	TestTrash should use proper test path to avoid failing on Windows	Minor	.	Anbang Hu	Anbang Hu
HDFS-13637	RBF: Router fails when threadIndex (in ConnectionPool) wraps around Integer.MIN_VALUE	Critical	federation	CR Hota	CR Hota
YARN-4781	Support intra-queue preemption for fairness ordering policy.	Major	scheduler	Wangda Tan	Eric Payne
HADOOP-15506	Upgrade Azure Storage Sdk version to 7.0.0 and update corresponding code blocks	Minor	fs/azure	Esfandiar Manii	Esfandiar Manii
HADOOP-15529	ContainerLaunch#testInvalidEnvVariableSubstitutionType is not supported in Windows	Minor	.	Giovanni Matteo Fumarola	Giovanni Matteo Fumarola
HADOOP-15533	Make WASB listStatus messages consistent	Trivial	fs/azure	Esfandiar Manii	Esfandiar Manii
HADOOP-15458	TestLocalFileSystem#testFSOutputStreamBuilder fails on Windows	Minor	test	Xiao Liang	Xiao Liang
YARN-8481	AMRMProxyPolicies should accept heartbeat response from new/unknown subclusters	Minor	amrmproxy, federation	Botong Huang	Botong Huang
HDFS-13528	RBF: If a directory exceeds quota limit then quota usage is not refreshed for other mount entries	Major	.	Dibyendu Karmakar	Dibyendu Karmakar
HDFS-13710	RBF: setQuota and getQuotaUsage should check the dfs.federation.router.quota.enable	Major	federation, hdfs	yanghuafeng	yanghuafeng
HDFS-13726	RBF: Fix RBF configuration links	Minor	documentation	Takanobu Asanuma	Takanobu Asanuma
HDFS-13475	RBF: Admin cannot enforce Router enter SafeMode	Major	.	Wei Yan	Chao Sun
HDFS-13733	RBF: Add Web UI configurations and descriptions to RBF document	Minor	documentation	Takanobu Asanuma	Takanobu Asanuma
HDFS-13743	RBF: Router throws NullPointerException due to the invalid initialization of MountTableResolver	Major	.	Takanobu Asanuma	Takanobu Asanuma
HDFS-13583	RBF: Router admin clrQuota is not synchronized with nameservice	Major	.	Dibyendu Karmakar	Dibyendu Karmakar
HDFS-13750	RBF: Router ID in RouterRpcClient is always null	Major	.	Takanobu Asanuma	Takanobu Asanuma
YARN-8129	Improve error message for invalid value in fields attribute	Minor	ATSv2	Charan Hebri	Abhishek Modi
YARN-8581	[AMRMProxy] Add sub-cluster timeout in LocalityMulticastAMRMProxyPolicy	Major	amrmproxy, federation	Botong Huang	Botong Huang
YARN-8673	[AMRMProxy] More robust responseId resync after an YarnRM master slave switch	Major	amrmproxy	Botong Huang	Botong Huang
HDFS-13848	Refactor NameNode failover proxy providers	Major	ha, hdfs-client	Konstantin Shvachko	Konstantin Shvachko
HDFS-13634	RBF: Configurable value in xml for async connection request queue size.	Major	federation	CR Hota	CR Hota
HADOOP-15731	TestDistributedShell fails on Windows	Major	.	Botong Huang	Botong Huang
HADOOP-15759	AliyunOSS: update oss-sdk version to 3.0.0	Major	fs/oss	wujinhu	wujinhu
HADOOP-15748	S3 listing inconsistency can raise NPE in globber	Major	fs	Steve Loughran	Steve Loughran
YARN-8696	[AMRMProxy] FederationInterceptor upgrade: home sub-cluster heartbeat async	Major	nodemanager	Botong Huang	Botong Huang
HADOOP-15671	AliyunOSS: Support Assume Roles in AliyunOSS	Major	fs/oss	wujinhu	wujinhu
HDFS-13790	RBF: Move ClientProtocol APIs to its own module	Major	.	Íñigo Goiri	Chao Sun
YARN-7652	Handle AM register requests asynchronously in FederationInterceptor	Major	amrmproxy, federation	Subramaniam Krishnan	Botong Huang
YARN-6989	Ensure timeline service v2 codebase gets UGI from HttpServletRequest in a consistent way	Major	timelineserver	Vrushali C	Abhishek Modi
YARN-3879	[Storage implementation] Create HDFS backing storage implementation for ATS reads	Major	timelineserver	Tsuyoshi Ozawa	Abhishek Modi
HADOOP-15837	DynamoDB table Update can fail S3A FS init	Major	fs/s3	Steve Loughran	Steve Loughran
HADOOP-15607	AliyunOSS: fix duplicated partNumber issue in AliyunOSSBlockOutputStream	Critical	.	wujinhu	wujinhu
HADOOP-15868	AliyunOSS: update document for properties of multiple part download, multiple part upload and directory copy	Major	fs/oss	wujinhu	wujinhu
YARN-8893	[AMRMProxy] Fix thread leak in AMRMClientRelayer and UAM client	Major	amrmproxy, federation	Botong Huang	Botong Huang
YARN-8905	[Router] Add JvmMetricsInfo and pause monitor	Minor	.	Bibin Chundatt	Bilwa S T
HADOOP-15917	AliyunOSS: fix incorrect ReadOps and WriteOps in statistics	Major	fs/oss	wujinhu	wujinhu
HADOOP-16009	Replace the url of the repository in Apache Hadoop source code	Major	documentation	Akira Ajisaka	Akira Ajisaka
HADOOP-15323	AliyunOSS: Improve copy file performance for AliyunOSSFileSystemStore	Major	fs/oss	wujinhu	wujinhu
YARN-9182	Backport YARN-6445 resource profile performance improvements to branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9181	Backport YARN-6232 for generic resource type usage to branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9177	Use resource map for app metrics in TestCombinedSystemMetricsPublisher for branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9188	Port YARN-7136 to branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9187	Backport YARN-6852 for GPU-specific native changes to branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9180	Port YARN-7033 NM recovery of assigned resources to branch-3.0/branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9280	Backport YARN-6620 to YARN-8200/branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9174	Backport YARN-7224 for refactoring of GpuDevice class	Major	.	Jonathan Hung	Jonathan Hung
YARN-9289	Backport YARN-7330 for GPU in UI to branch-2	Major	.	Jonathan Hung	Jonathan Hung
HDFS-14262	[SBN read] Unclear Log.WARN message in GlobalStateIdContext	Major	hdfs	Shweta	Shweta
YARN-8549	Adding a NoOp timeline writer and reader plugin classes for ATSv2	Minor	ATSv2, timelineclient, timelineserver	Prabha Manepalli	Prabha Manepalli
HADOOP-16109	Parquet reading S3AFileSystem causes EOF	Blocker	fs/s3	Dave Christianson	Steve Loughran
YARN-9397	Fix empty NMResourceInfo object test failures in branch-2	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16191	AliyunOSS: improvements for copyFile/copyDirectory and logging	Major	fs/oss	wujinhu	wujinhu
YARN-9271	Backport YARN-6927 for resource type support in MapReduce	Major	.	Jonathan Hung	Jonathan Hung
YARN-9291	Backport YARN-7637 to branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9409	Port resource type changes from YARN-7237 to branch-3.0/branch-2	Major	.	Jonathan Hung	Jonathan Hung
YARN-9272	Backport YARN-7738 for refreshing max allocation for multiple resource types	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16205	Backporting ABFS driver from trunk to branch 2.0	Major	fs/azure	Esfandiar Manii	Yuan Gao
HADOOP-16269	ABFS: add listFileStatus with StartFrom	Major	fs/azure	Da Zhou	Da Zhou
HADOOP-16306	AliyunOSS: Remove temporary files when upload small files to OSS	Major	fs/oss	wujinhu	wujinhu
HDFS-14034	Support getQuotaUsage API in WebHDFS	Major	fs, webhdfs	Erik Krogen	Chao Sun
YARN-9775	RMWebServices /scheduler-conf GET returns all hadoop configurations for ZKConfigurationStore	Major	restapi	Prabhu Joseph	Prabhu Joseph
HDFS-14771	Backport HDFS-14617 to branch-2 (Improve fsimage load time by writing sub-sections to the fsimage index)	Major	namenode	Xiaoqiao He	Xiaoqiao He
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
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
HADOOP-16630	Backport HADOOP-16548 - “ABFS: Config to enable/disable flush operation” to branch-2	Minor	fs/azure	Sneha Vijayarajan	Sneha Vijayarajan
HADOOP-16631	Backport HADOOP-16578 - “ABFS: fileSystemExists() should not call container level apis” to Branch-2	Major	fs/azure	Sneha Vijayarajan	Sneha Vijayarajan
HDFS-14162	Balancer should work with ObserverNode	Major	.	Konstantin Shvachko	Erik Krogen

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-15149	CryptoOutputStream should implement StreamCapabilities	Major	fs	Mike Drob	Xiao Chen
HADOOP-15177	Update the release year to 2018	Blocker	build	Akira Ajisaka	Bharat Viswanadham
YARN-8412	Move ResourceRequest.clone logic everywhere into a proper API	Minor	.	Botong Huang	Botong Huang
HDFS-13870	WebHDFS: Document ALLOWSNAPSHOT and DISALLOWSNAPSHOT API doc	Minor	documentation, webhdfs	Siyao Meng	Siyao Meng
HDFS-12729	Document special paths in HDFS	Major	documentation	Christopher Douglas	Masatake Iwasaki
HADOOP-15711	Move branch-2 precommit/nightly test builds to java 8	Critical	.	Jonathan Hung	Jonathan Hung
HDFS-14510	Backport HDFS-13087 to branch-2 (Snapshotted encryption zone information should be immutable)	Major	encryption, snapshots	Wei-Chiu Chuang	Siyao Meng
HDFS-14585	Backport HDFS-8901 Use ByteBuffer in DFSInputStream#read to branch2.9	Major	.	Lisheng Sun	Lisheng Sun
HDFS-14483	Backport HDFS-14111,HDFS-3246 ByteBuffer pread interface to branch-2.9	Major	.	Zheng Hu	Lisheng Sun
YARN-9559	Create AbstractContainersLauncher for pluggable ContainersLauncher logic	Major	.	Jonathan Hung	Jonathan Hung
HDFS-14725	Backport HDFS-12914 to branch-2 (Block report leases cause missing blocks until next report)	Major	namenode	Wei-Chiu Chuang	Xiaoqiao He
YARN-8200	Backport resource types/GPU features to branch-3.0/branch-2	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16555	Update commons-compress to 1.19	Major	.	Wei-Chiu Chuang	YiSheng Lien
YARN-9730	Support forcing configured partitions to be exclusive based on app node label	Major	.	Jonathan Hung	Jonathan Hung
HADOOP-16544	update io.netty in branch-2	Major	.	Wei-Chiu Chuang	Masatake Iwasaki
HADOOP-16588	Update commons-beanutils version to 1.9.4 in branch-2	Critical	.	Wei-Chiu Chuang	Wei-Chiu Chuang