Apache Hadoop Changelog

Release 2.1.0-beta - 2013-08-22

INCOMPATIBLE CHANGES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9832	Add RPC header to client ping	Blocker	ipc	Daryn Sharp	Daryn Sharp
HADOOP-9820	RPCv9 wire protocol is insufficient to support multiplexing	Blocker	ipc, security	Daryn Sharp	Daryn Sharp
HADOOP-9698	RPCv9 client must honor server's SASL negotiate response	Blocker	ipc	Daryn Sharp	Daryn Sharp
HADOOP-9683	Wrap IpcConnectionContext in RPC headers	Blocker	ipc	Luke Lu	Daryn Sharp
HADOOP-9649	Promote YARN service life-cycle libraries into Hadoop Common	Blocker	.	Zhijie Shen	Zhijie Shen
HADOOP-9630	Remove IpcSerializationType	Major	ipc	Luke Lu	Junping Du
HADOOP-9425	Add error codes to rpc-response	Major	ipc	Sanjay Radia	Sanjay Radia
HADOOP-9421	Convert SASL to use ProtoBuf and provide negotiation capabilities	Blocker	.	Sanjay Radia	Daryn Sharp
HADOOP-9380	Add totalLength to rpc response	Major	ipc	Sanjay Radia	Sanjay Radia
HADOOP-9194	RPC Support for QoS	Major	ipc	Luke Lu	Junping Du
HADOOP-9163	The rpc msg in ProtobufRpcEngine.proto should be moved out to avoid an extra copy	Major	ipc	Sanjay Radia	Sanjay Radia
HADOOP-9151	Include RPC error info in RpcResponseHeader instead of sending it separately	Major	ipc	Sanjay Radia	Sanjay Radia
HADOOP-8886	Remove KFS support	Major	fs	Eli Collins	Eli Collins
HDFS-5083	Update the HDFS compatibility version range	Blocker	.	Kihwal Lee	Kihwal Lee
HDFS-4866	Protocol buffer support cannot compile under C	Blocker	namenode	Ralph Castain	Arpit Agarwal
HDFS-4659	Support setting execution bit for regular files	Major	namenode	Brandon Li	Brandon Li
HDFS-4434	Provide a mapping from INodeId to INode	Major	namenode	Brandon Li	Suresh Srinivas
HDFS-4305	Add a configurable limit on number of blocks per file, and min block size	Minor	namenode	Todd Lipcon	Andrew Wang
HDFS-2802	Support for RW/RO snapshots in HDFS	Major	namenode	Hari Mankude	Tsz Wo Nicholas Sze
MAPREDUCE-5304	mapreduce.Job killTask/failTask/getTaskCompletionEvents methods have incompatible signature changes	Blocker	.	Alejandro Abdelnur	Karthik Kambatla
MAPREDUCE-5300	Two function signature changes in filecache.DistributedCache	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5237	ClusterStatus incompatiblity issues with MR1	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5234	Signature changes for getTaskId of TaskReport in mapred	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5233	Functions are changed or removed from Job in jobcontrol	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5176	Preemptable annotations (to support preemption in MR)	Major	mrv2	Carlo Curino	Carlo Curino
MAPREDUCE-5156	Hadoop-examples-1.x.x.jar cannot run on Yarn	Blocker	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-4942	mapreduce.Job has a bunch of methods that throw InterruptedException so its incompatible with MR1	Major	mrv2	Robert Kanter	Robert Kanter
MAPREDUCE-4737	Hadoop does not close output file / does not call Mapper.cleanup if exception in map	Major	.	Daniel Dai	Arun C Murthy
MAPREDUCE-4067	Replace YarnRemoteException with IOException in MRv2 APIs	Critical	.	Jitendra Nath Pandey	Xuan Gong
YARN-1056	Fix configs yarn.resourcemanager.resourcemanager.connect.{max.wait.secs|retry_interval.secs}	Trivial	.	Karthik Kambatla	Karthik Kambatla
YARN-926	ContainerManagerProtcol APIs should take in requests for multiple containers	Blocker	.	Vinod Kumar Vavilapalli	Jian He
YARN-918	ApplicationMasterProtocol doesn't need ApplicationAttemptId in the payload after YARN-701	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-869	ResourceManagerAdministrationProtocol should neither be public(yet) nor in yarn.api	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-851	Share NMTokens using NMTokenCache (api-based) instead of memory based approach which is used currently.	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-841	Annotate and document AuxService APIs	Major	.	Siddharth Seth	Vinod Kumar Vavilapalli
YARN-840	Move ProtoUtils to yarn.api.records.pb.impl	Major	.	Jian He	Jian He
YARN-837	ClusterInfo.java doesn't seem to belong to org.apache.hadoop.yarn	Major	.	Zhijie Shen	Zhijie Shen
YARN-834	Review/fix annotations for yarn-client module and clearly differentiate *Async apis	Blocker	.	Arun C Murthy	Zhijie Shen
YARN-831	Remove resource min from GetNewApplicationResponse	Blocker	.	Jian He	Jian He
YARN-829	Rename RMTokenSelector to be RMDelegationTokenSelector	Major	.	Zhijie Shen	Zhijie Shen
YARN-828	Remove YarnVersionAnnotation	Major	.	Zhijie Shen	Zhijie Shen
YARN-826	Move Clock/SystemClock to util package	Major	.	Zhijie Shen	Zhijie Shen
YARN-824	Add static factory to yarn client lib interface and change it to abstract class	Major	.	Jian He	Jian He
YARN-823	Move RMAdmin from yarn.client to yarn.client.cli and rename as RMAdminCLI	Major	.	Jian He	Jian He
YARN-822	Rename ApplicationToken to AMRMToken	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-821	Rename FinishApplicationMasterRequest.setFinishApplicationStatus to setFinalApplicationStatus to be consistent with getter	Major	.	Jian He	Jian He
YARN-806	Move ContainerExitStatus from yarn.api to yarn.api.records	Major	.	Jian He	Jian He
YARN-792	Move NodeHealthStatus from yarn.api.record to yarn.server.api.record	Major	.	Jian He	Jian He
YARN-791	Ensure that RM RPC APIs that return nodes are consistent with /nodes REST API	Blocker	api, resourcemanager	Sandy Ryza	Sandy Ryza
YARN-787	Remove resource min from Yarn client API	Blocker	api	Alejandro Abdelnur	Alejandro Abdelnur
YARN-777	Remove unreferenced objects from proto	Major	.	Jian He	Jian He
YARN-756	Move PreemptionContainer/PremptionContract/PreemptionMessage/StrictPreemptionContract/PreemptionResourceRequest to api.records	Major	.	Jian He	Jian He
YARN-755	Rename AllocateResponse.reboot to AllocateResponse.resync	Major	.	Bikas Saha	Bikas Saha
YARN-753	Add individual factory method for api protocol records	Major	.	Jian He	Jian He
YARN-749	Rename ResourceRequest (get,set)HostName to (get,set)ResourceName	Major	.	Arun C Murthy	Arun C Murthy
YARN-748	Move BuilderUtils from yarn-common to yarn-server-common	Major	.	Jian He	Jian He
YARN-746	rename Service.register() and Service.unregister() to registerServiceListener() & unregisterServiceListener() respectively	Major	.	Steve Loughran	Steve Loughran
YARN-735	Make ApplicationAttemptID, ContainerID, NodeID immutable	Major	.	Jian He	Jian He
YARN-724	Move ProtoBase from api.records to api.records.impl.pb	Major	.	Jian He	Jian He
YARN-720	container-log4j.properties should not refer to mapreduce properties	Major	.	Siddharth Seth	Zhijie Shen
YARN-716	Make ApplicationID immutable	Major	.	Siddharth Seth	Siddharth Seth
YARN-701	ApplicationTokens should be used irrespective of kerberos	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-694	Start using NMTokens to authenticate all communication with NM	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-684	ContainerManager.startContainer needs to only have ContainerTokenIdentifier instead of the whole Container	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-642	Fix up /nodes REST API to have 1 param and be consistent with the Java API	Major	api, resourcemanager	Sandy Ryza	Sandy Ryza
YARN-635	Rename YarnRemoteException to YarnException	Major	.	Xuan Gong	Siddharth Seth
YARN-633	Change RMAdminProtocol api to throw IOException and YarnRemoteException	Major	.	Xuan Gong	Xuan Gong
YARN-632	Change ContainerManager api to throw IOException and YarnRemoteException	Major	.	Xuan Gong	Xuan Gong
YARN-631	Change ClientRMProtocol api to throw IOException and YarnRemoteException	Major	.	Xuan Gong	Xuan Gong
YARN-630	Change AMRMProtocol api to throw IOException and YarnRemoteException	Major	.	Xuan Gong	Xuan Gong
YARN-629	Make YarnRemoteException not be rooted at IOException	Major	.	Xuan Gong	Xuan Gong
YARN-615	ContainerLaunchContext.containerTokens should simply be called tokens	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-610	ClientToken (ClientToAMToken) should not be set in the environment	Blocker	.	Siddharth Seth	Omkar Vinit Joshi
YARN-579	Make ApplicationToken part of Container's token list to help RM-restart	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-571	User should not be part of ContainerLaunchContext	Major	.	Hitesh Shah	Omkar Vinit Joshi
YARN-561	Nodemanager should set some key information into the environment of every container that it launches.	Major	.	Hitesh Shah	Xuan Gong
YARN-553	Have YarnClient generate a directly usable ApplicationSubmissionContext	Minor	client	Harsh J	Karthik Kambatla
YARN-536	Remove ContainerStatus, ContainerState from Container api interface as they will not be called by the container object	Major	.	Xuan Gong	Xuan Gong
YARN-530	Define Service model strictly, implement AbstractService for robust subclassing, migrate yarn-common services	Major	.	Steve Loughran	Steve Loughran
YARN-440	Flatten RegisterNodeManagerResponse	Major	.	Siddharth Seth	Xuan Gong
YARN-439	Flatten NodeHeartbeatResponse	Major	.	Siddharth Seth	Xuan Gong
YARN-396	Rationalize AllocateResponse in RM scheduler API	Major	.	Bikas Saha	Zhijie Shen
YARN-387	Fix inconsistent protocol naming	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli

IMPORTANT ISSUES:

JIRA	Summary	Priority	Component	Reporter	Contributor

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9763	Extends LightWeightGSet to support eviction of expired elements	Major	util	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HADOOP-9515	Add general interface for NFS and Mount	Major	.	Brandon Li	Brandon Li
HADOOP-9509	Implement ONCRPC and XDR	Major	.	Brandon Li	Brandon Li
HADOOP-9283	Add support for running the Hadoop client on AIX	Major	security	Aaron T. Myers	Aaron T. Myers
HADOOP-9209	Add shell command to dump file checksums	Major	fs, tools	Todd Lipcon	Todd Lipcon
HADOOP-8562	Enhancements to support Hadoop on Windows Server and Windows Azure environments	Major	.	Bikas Saha	Bikas Saha
HADOOP-8040	Add symlink support to FileSystem	Major	fs	Eli Collins	Andrew Wang
HDFS-4249	Add status NameNode startup to webUI	Major	namenode	Suresh Srinivas	Chris Nauroth
HDFS-4124	Refactor INodeDirectory#getExistingPathINodes() to enable returning more than INode array	Minor	.	Jing Zhao	Jing Zhao
HDFS-3601	Implementation of ReplicaPlacementPolicyNodeGroup to support 4-layer network topology	Major	namenode	Junping Du	Junping Du
HDFS-3495	Update Balancer to support new NetworkTopology with NodeGroup	Major	balancer & mover	Junping Du	Junping Du
HDFS-3278	Umbrella Jira for HDFS-HA Phase 2	Major	.	Sanjay Radia	Todd Lipcon
HDFS-2576	Namenode should have a favored nodes hint to enable clients to have control over block placement.	Major	hdfs-client, namenode	Pritam Damania	Devaraj Das
HDFS-1804	Add a new block-volume device choosing policy that looks at free space	Minor	datanode	Harsh J	Aaron T. Myers
MAPREDUCE-5298	Move MapReduce services to YARN-117 stricter lifecycle	Major	applicationmaster	Steve Loughran	Steve Loughran
MAPREDUCE-5129	Add tag info to JH files	Minor	.	Billie Rinaldi	Billie Rinaldi
YARN-326	Add multi-resource scheduling to the fair scheduler	Major	scheduler	Sandy Ryza	Sandy Ryza

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9845	Update protobuf to 2.5 from 2.4.x	Blocker	performance	stack	Alejandro Abdelnur
HADOOP-9792	Retry the methods that are tagged @AtMostOnce along with @Idempotent	Major	ipc	Suresh Srinivas	Suresh Srinivas
HADOOP-9770	Make RetryCache#state non volatile	Minor	util	Suresh Srinivas	Suresh Srinivas
HADOOP-9762	RetryCache utility for implementing RPC retries	Major	util	Suresh Srinivas	Suresh Srinivas
HADOOP-9760	Move GSet and LightWeightGSet to hadoop-common	Major	util	Suresh Srinivas	Suresh Srinivas
HADOOP-9756	Additional cleanup RPC code	Minor	ipc	Junping Du	Junping Du
HADOOP-9754	Clean up RPC code	Minor	ipc	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HADOOP-9751	Add clientId and retryCount to RpcResponseHeaderProto	Major	ipc	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HADOOP-9734	Common protobuf definitions for GetUserMappingsProtocol, RefreshAuthorizationPolicyProtocol and RefreshUserMappingsProtocol	Minor	ipc	Jason Lowe	Jason Lowe
HADOOP-9717	Add retry attempt count to the RPC requests	Major	ipc	Suresh Srinivas	Jing Zhao
HADOOP-9716	Move the Rpc request call ID generation to client side InvocationHandler	Major	ipc	Suresh Srinivas	Tsz Wo Nicholas Sze
HADOOP-9691	RPC clients can generate call ID using AtomicInteger instead of synchronizing on the Client instance.	Minor	ipc	Chris Nauroth	Chris Nauroth
HADOOP-9688	Add globally unique Client ID to RPC requests	Blocker	ipc	Suresh Srinivas	Suresh Srinivas
HADOOP-9676	make maximum RPC buffer size configurable	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HADOOP-9673	NetworkTopology: when a node can't be added, print out its location for diagnostic purposes	Trivial	net	Colin Patrick McCabe	Colin Patrick McCabe
HADOOP-9661	Allow metrics sources to be extended	Major	metrics	Sandy Ryza	Sandy Ryza
HADOOP-9625	HADOOP_OPTS not picked up by hadoop command	Minor	bin, conf	Paul Han	Paul Han
HADOOP-9605	Update junit dependency	Major	build	Timothy St. Clair
HADOOP-9604	Wrong Javadoc of FSDataOutputStream	Minor	fs	Jingguo Yao	Jingguo Yao
HADOOP-9560	metrics2#JvmMetrics should have max memory size of JVM	Minor	metrics	Tsuyoshi Ozawa	Tsuyoshi Ozawa
HADOOP-9523	Provide a generic IBM java vendor flag in PlatformName.java to support non-Sun JREs	Major	.	Tian Hong Wang	Tian Hong Wang
HADOOP-9511	Adding support for additional input streams (FSDataInputStream and RandomAccessFile) in SecureIOUtils.	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
HADOOP-9503	Remove sleep between IPC client connect timeouts	Minor	ipc	Varun Sharma	Varun Sharma
HADOOP-9483	winutils support for readlink command	Major	util	Chris Nauroth	Arpit Agarwal
HADOOP-9450	HADOOP_USER_CLASSPATH_FIRST is not honored; CLASSPATH is PREpended instead of APpended	Major	scripts	Mitch Wyle	Harsh J
HADOOP-9401	CodecPool: Add counters for number of (de)compressors leased out	Major	.	Karthik Kambatla	Karthik Kambatla
HADOOP-9379	capture the ulimit info after printing the log to the console	Trivial	.	Arpit Gupta	Arpit Gupta
HADOOP-9352	Expose UGI.setLoginUser for tests	Major	security	Daryn Sharp	Daryn Sharp
HADOOP-9343	Allow additional exceptions through the RPC layer	Major	.	Siddharth Seth	Siddharth Seth
HADOOP-9338	FsShell Copy Commands Should Optionally Preserve File Attributes	Major	fs	Nick White	Nick White
HADOOP-9336	Allow UGI of current connection to be queried	Critical	ipc	Daryn Sharp	Daryn Sharp
HADOOP-9334	Update netty version	Minor	build	Nicolas Liochon	Nicolas Liochon
HADOOP-9322	LdapGroupsMapping doesn't seem to set a timeout for its directory search	Minor	security	Harsh J	Harsh J
HADOOP-9318	when exiting on a signal, print the signal name first	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HADOOP-9279	Document the need to build hadoop-maven-plugins for eclipse and separate project builds	Major	build, documentation	Tsuyoshi Ozawa	Tsuyoshi Ozawa
HADOOP-9253	Capture ulimit info in the logs at service start time	Major	.	Arpit Gupta	Arpit Gupta
HADOOP-9227	FileSystemContractBaseTest doesn‘t test filesystem’s mkdir/isDirectory() logic rigorously enough	Trivial	fs	Steve Loughran	Steve Loughran
HADOOP-9164	Print paths of loaded native libraries in NativeLibraryChecker	Minor	native	Binglin Chang	Binglin Chang
HADOOP-9117	replace protoc ant plugin exec with a maven plugin	Major	build	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-8924	Add maven plugin alternative to shell script to save package-info.java	Major	build	Chris Nauroth	Chris Nauroth
HADOOP-8711	provide an option for IPC server users to avoid printing stack information for certain exceptions	Major	ipc	Brandon Li	Brandon Li
HADOOP-8608	Add Configuration API for parsing time durations	Minor	conf	Todd Lipcon	Chris Douglas
HADOOP-8462	Native-code implementation of bzip2 codec	Major	io	Govind Kamat	Govind Kamat
HADOOP-8415	getDouble() and setDouble() in org.apache.hadoop.conf.Configuration	Minor	conf	Jan van der Lugt	Jan van der Lugt
HDFS-5027	On startup, DN should scan volumes in parallel	Major	datanode	Aaron T. Myers	Aaron T. Myers
HDFS-5020	Make DatanodeProtocol#blockReceivedAndDeleted idempotent	Major	namenode	Jing Zhao	Jing Zhao
HDFS-5010	Reduce the frequency of getCurrentUser() calls from namenode	Major	namenode, performance	Kihwal Lee	Kihwal Lee
HDFS-5008	Make ClientProtocol#abandonBlock() idempotent	Major	namenode	Suresh Srinivas	Jing Zhao
HDFS-5007	Replace hard-coded property keys with DFSConfigKeys fields	Minor	.	Kousuke Saruta	Kousuke Saruta
HDFS-4996	ClientProtocol#metaSave can be made idempotent by overwriting the output file instead of appending to it	Minor	namenode	Chris Nauroth	Chris Nauroth
HDFS-4992	Make balancer's thread count configurable	Major	balancer & mover	Max Lapan	Max Lapan
HDFS-4978	Make disallowSnapshot idempotent	Major	.	Jing Zhao	Jing Zhao
HDFS-4942	Add retry cache support in Namenode	Major	ha, namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4932	Avoid a wide line on the name node webUI if we have more Journal nodes	Minor	ha, namenode	Fengdong Yu	Fengdong Yu
HDFS-4914	When possible, Use DFSClient.Conf instead of Configuration	Minor	hdfs-client	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4912	Cleanup FSNamesystem#startFileInternal	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4903	Print trash configuration and trash emptier state in namenode log	Minor	namenode	Suresh Srinivas	Arpit Agarwal
HDFS-4848	copyFromLocal and renaming a file to “.snapshot” should output that “.snapshot” is a reserved name	Minor	snapshots	Stephen Chu	Jing Zhao
HDFS-4804	WARN when users set the block balanced preference percent below 0.5 or above 1.0	Minor	.	Stephen Chu	Stephen Chu
HDFS-4787	Create a new HdfsConfiguration before each TestDFSClientRetries testcases	Major	.	Tian Hong Wang	Tian Hong Wang
HDFS-4772	Add number of children in HdfsFileStatus	Minor	namenode	Brandon Li	Brandon Li
HDFS-4721	Speed up lease/block recovery when DN fails and a block goes into recovery	Major	namenode	Varun Sharma	Varun Sharma
HDFS-4698	provide client-side metrics for remote reads, local reads, and short-circuit reads	Minor	hdfs-client	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4679	Namenode operation checks should be done in a consistent manner	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4645	Move from randomly generated block ID to sequentially generated block ID	Major	namenode	Suresh Srinivas	Arpit Agarwal
HDFS-4635	Move BlockManager#computeCapacity to LightWeightGSet	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4569	Small image transfer related cleanups.	Trivial	.	Andrew Wang	Andrew Wang
HDFS-4565	use DFSUtil.getSpnegoKeytabKey() to get the spnego keytab key in secondary namenode and namenode http server	Minor	security	Arpit Gupta	Arpit Gupta
HDFS-4521	invalid network topologies should not be cached	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4465	Optimize datanode ReplicasMap and ReplicaInfo	Major	datanode	Suresh Srinivas	Aaron T. Myers
HDFS-4461	DirectoryScanner: volume path prefix takes up memory for every block that is scanned	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4304	Make FSEditLogOp.MAX_OP_SIZE configurable	Major	namenode	Todd Lipcon	Colin Patrick McCabe
HDFS-4246	The exclude node list should be more forgiving, for each output stream	Minor	hdfs-client	Harsh J	Harsh J
HDFS-4234	Use the generic code for choosing datanode in Balancer	Minor	balancer & mover	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4215	Improvements on INode and image loading	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4206	Change the fields in INode and its subclasses to private	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4152	Add a new class for the parameter in INode.collectSubtreeBlocksAndClear(..)	Minor	namenode	Tsz Wo Nicholas Sze	Jing Zhao
HDFS-4151	Passing INodesInPath instead of INode[] in FSDirectory	Minor	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4053	Increase the default block size	Major	.	Eli Collins	Eli Collins
HDFS-3940	Add Gset#clear method and clear the block map when namenode is shutdown	Minor	.	Eli Collins	Suresh Srinivas
HDFS-3880	Use Builder to get RPC server in HDFS	Minor	datanode, ha, namenode, security	Brandon Li	Brandon Li
HDFS-3817	avoid printing stack information for SafeModeException	Major	namenode	Brandon Li	Brandon Li
HDFS-3498	Make Replica Removal Policy pluggable and ReplicaPlacementPolicyDefault extensible for reusing code in subclass	Major	namenode	Junping Du	Junping Du
HDFS-3163	TestHDFSCLI.testAll fails if the user name is not all lowercase	Trivial	test	Brandon Li	Brandon Li
HDFS-2857	Cleanup BlockInfo class	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-2572	Unnecessary double-check in DN#getHostName	Trivial	datanode	Harsh J	Harsh J
HDFS-2042	Require c99 when building libhdfs	Minor	libhdfs	Eli Collins
HDFS-347	DFS read performance suboptimal when client co-located on nodes with data	Major	datanode, hdfs-client, performance	George Porter	Colin Patrick McCabe
MAPREDUCE-5398	MR changes for YARN-513	Major	.	Bikas Saha	Jian He
MAPREDUCE-5352	Optimize node local splits generated by CombineFileInputFormat	Major	.	Siddharth Seth	Siddharth Seth
MAPREDUCE-5283	Over 10 different tests have near identical implementations of AppContext	Major	applicationmaster, test	Sandy Ryza	Sandy Ryza
MAPREDUCE-5268	Improve history server startup performance	Major	jobhistoryserver	Jason Lowe	Karthik Kambatla
MAPREDUCE-5246	Adding application type to submission context	Major	.	Mayank Bansal	Mayank Bansal
MAPREDUCE-5171	Expose blacklisted nodes from the MR AM REST API	Major	applicationmaster	Sandy Ryza	Sandy Ryza
MAPREDUCE-5128	mapred-default.xml is missing a bunch of history server configs	Major	documentation, jobhistoryserver	Sandy Ryza	Sandy Ryza
MAPREDUCE-5079	Recovery should restore task state from job history info directly	Critical	mr-am	Jason Lowe	Jason Lowe
MAPREDUCE-5069	add concrete common implementations of CombineFileInputFormat	Minor	mrv1, mrv2	Sangjin Lee	Sangjin Lee
MAPREDUCE-5033	mapred shell script should respect usage flags (--help -help -h)	Minor	.	Andrew Wang	Andrew Wang
MAPREDUCE-4990	Construct debug strings conditionally in ShuffleHandler.Shuffle#sendMapOutput()	Trivial	.	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-4989	JSONify DataTables input data for Attempts page	Major	jobhistoryserver, mr-am	Ravi Prakash	Ravi Prakash
MAPREDUCE-4974	Optimising the LineRecordReader initialize() method	Major	mrv1, mrv2, performance	Arun A K	Gelesh
MAPREDUCE-4846	Some JobQueueInfo methods are public in MR1 but protected in MR2	Major	client	Sandy Ryza	Sandy Ryza
MAPREDUCE-3787	[Gridmix] Improve STRESS mode	Major	contrib/gridmix	Amar Kamat	Amar Kamat
MAPREDUCE-3533	have the service interface extend Closeable and use close() as its shutdown operation	Minor	mrv2	Steve Loughran
YARN-1045	Improve toString implementation for PBImpls	Major	.	Siddharth Seth	Jian He
YARN-883	Expose Fair Scheduler-specific queue metrics	Major	scheduler	Sandy Ryza	Sandy Ryza
YARN-865	RM webservices can't query based on application Types	Major	.	Xuan Gong	Xuan Gong
YARN-803	factor out scheduler config validation from the ResourceManager to each scheduler implementation	Major	resourcemanager, scheduler	Alejandro Abdelnur	Alejandro Abdelnur
YARN-789	Enable zero capabilities resource requests in fair scheduler	Major	scheduler	Alejandro Abdelnur	Alejandro Abdelnur
YARN-782	vcores-pcores ratio functions differently from vmem-pmem ratio in misleading way	Critical	nodemanager	Sandy Ryza	Sandy Ryza
YARN-752	In AMRMClient, automatically add corresponding rack requests for requested nodes	Major	api, applications	Sandy Ryza	Sandy Ryza
YARN-736	Add a multi-resource fair sharing metric	Major	scheduler	Sandy Ryza	Sandy Ryza
YARN-600	Hook up cgroups CPU settings to the number of virtual cores allocated	Major	resourcemanager, scheduler	Sandy Ryza	Sandy Ryza
YARN-598	Add virtual cores to queue metrics	Major	resourcemanager, scheduler	Sandy Ryza	Sandy Ryza
YARN-590	Add an optional mesage to RegisterNodeManagerResponse as to why NM is being asked to resync or shutdown	Major	.	Vinod Kumar Vavilapalli	Mayank Bansal
YARN-538	RM address DNS lookup can cause unnecessary slowness on every JHS page load	Major	.	Sandy Ryza	Sandy Ryza
YARN-525	make CS node-locality-delay refreshable	Major	capacityscheduler	Thomas Graves	Thomas Graves
YARN-518	Fair Scheduler's document link could be added to the hadoop 2.x main doc page	Major	documentation	Dapeng Sun	Sandy Ryza
YARN-447	applicationComparator improvement for CS	Minor	scheduler	Nemon Lou	Nemon Lou
YARN-406	TestRackResolver fails when local network resolves “host1” to a valid host	Minor	.	Hitesh Shah	Hitesh Shah
YARN-391	detabify LCEResourcesHandler classes	Trivial	nodemanager	Steve Loughran	Steve Loughran
YARN-385	ResourceRequestPBImpl's toString() is missing location and # containers	Major	api	Sandy Ryza	Sandy Ryza
YARN-382	SchedulerUtils improve way normalizeRequest sets the resource capabilities	Major	scheduler	Thomas Graves	Zhijie Shen
YARN-381	Improve FS docs	Minor	documentation	Eli Collins	Sandy Ryza
YARN-347	YARN CLI should show CPU info besides memory info in node status	Major	client	Junping Du	Junping Du
YARN-297	Improve hashCode implementations for PB records	Major	.	Arun C Murthy	Xuan Gong
YARN-249	Capacity Scheduler web page should show list of active users per queue like it used to (in 1.x)	Major	capacityscheduler	Ravi Prakash	Ravi Prakash
YARN-237	Refreshing the RM page forgets how many rows I had in my Datatables	Major	resourcemanager	Ravi Prakash	Jian He
YARN-198	If we are navigating to Nodemanager UI from Resourcemanager,then there is not link to navigate back to Resource manager	Minor	nodemanager	Ramgopal N	Jian He
YARN-117	Enhance YARN service model	Major	.	Steve Loughran	Steve Loughran
YARN-84	Use Builder to get RPC server in YARN	Minor	.	Brandon Li	Brandon Li

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9872	Improve protoc version handling and detection	Blocker	build	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-9850	RPC kerberos errors don't trigger relogin	Blocker	ipc	Daryn Sharp	Daryn Sharp
HADOOP-9816	RPC Sasl QOP is broken	Blocker	ipc, security	Daryn Sharp	Daryn Sharp
HADOOP-9787	ShutdownHelper util to shutdown threads and threadpools	Major	util	Karthik Kambatla	Karthik Kambatla
HADOOP-9786	RetryInvocationHandler#isRpcInvocation should support ProtocolTranslator	Major	.	Jing Zhao	Jing Zhao
HADOOP-9773	TestLightWeightCache fails	Minor	test	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HADOOP-9759	Add support for NativeCodeLoader#getLibraryName on Windows	Critical	.	Chuan Liu	Chuan Liu
HADOOP-9738	TestDistCh fails	Major	tools	Kihwal Lee	Jing Zhao
HADOOP-9707	Fix register lists for crc32c inline assembly	Minor	util	Todd Lipcon	Todd Lipcon
HADOOP-9701	mvn site ambiguous links in hadoop-common	Minor	documentation	Steve Loughran	Karthik Kambatla
HADOOP-9681	FileUtil.unTarUsingJava() should close the InputStream upon finishing	Minor	.	Chuan Liu	Chuan Liu
HADOOP-9678	TestRPC#testStopsAllThreads intermittently fails on Windows	Major	.	Ivan Mitic	Ivan Mitic
HADOOP-9665	BlockDecompressorStream#decompress will throw EOFException instead of return -1 when EOF	Critical	.	Zhijie Shen	Zhijie Shen
HADOOP-9656	Gridmix unit tests fail on Windows and Linux	Minor	test, tools	Chuan Liu	Chuan Liu
HADOOP-9643	org.apache.hadoop.security.SecurityUtil calls toUpperCase(Locale.getDefault()) as well as toLowerCase(Locale.getDefault()) on hadoop.security.authentication value.	Minor	security	Mark Miller	Mark Miller
HADOOP-9638	parallel test changes caused invalid test path for several HDFS tests on Windows	Major	test	Chris Nauroth	Andrey Klochkov
HADOOP-9637	Adding Native Fstat for Windows as needed by YARN	Major	.	Chuan Liu	Chuan Liu
HADOOP-9632	TestShellCommandFencer will fail if there is a ‘host’ machine in the network	Minor	.	Chuan Liu	Chuan Liu
HADOOP-9607	Fixes in Javadoc build	Minor	documentation	Timothy St. Clair
HADOOP-9599	hadoop-config.cmd doesn't set JAVA_LIBRARY_PATH correctly	Major	.	Mostafa Elhemali	Mostafa Elhemali
HADOOP-9593	stack trace printed at ERROR for all yarn clients without hadoop.home set	Major	util	Steve Loughran	Steve Loughran
HADOOP-9581	hadoop --config non-existent directory should result in error	Major	scripts	Ashwin Shankar	Ashwin Shankar
HADOOP-9574	Add new methods in AbstractDelegationTokenSecretManager for restoring RMDelegationTokens on RMRestart	Major	.	Jian He	Jian He
HADOOP-9566	Performing direct read using libhdfs sometimes raises SIGPIPE (which in turn throws SIGABRT) causing client crashes	Major	native	Lenni Kuff	Colin Patrick McCabe
HADOOP-9563	Fix incompatibility introduced by HADOOP-9523	Major	util	Kihwal Lee	Tian Hong Wang
HADOOP-9556	disable HA tests on Windows that fail due to ZooKeeper client connection management bug	Major	ha, test	Chris Nauroth	Chris Nauroth
HADOOP-9553	TestAuthenticationToken fails on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HADOOP-9550	Remove aspectj dependency	Major	.	Karthik Kambatla	Karthik Kambatla
HADOOP-9549	WebHdfsFileSystem hangs on close()	Blocker	security	Kihwal Lee	Daryn Sharp
HADOOP-9532	HADOOP_CLIENT_OPTS is appended twice by Windows cmd scripts	Minor	bin	Chris Nauroth	Chris Nauroth
HADOOP-9527	Add symlink support to LocalFileSystem on Windows	Major	fs, test	Arpit Agarwal	Arpit Agarwal
HADOOP-9526	TestShellCommandFencer and TestShell fail on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HADOOP-9524	Fix ShellCommandFencer to work on Windows	Major	ha	Arpit Agarwal	Arpit Agarwal
HADOOP-9517	Document Hadoop Compatibility	Blocker	documentation	Arun C Murthy	Karthik Kambatla
HADOOP-9507	LocalFileSystem rename() is broken in some cases when destination exists	Minor	fs	Mostafa Elhemali	Chris Nauroth
HADOOP-9504	MetricsDynamicMBeanBase has concurrency issues in createMBeanInfo	Critical	metrics	Liang Xie	Liang Xie
HADOOP-9500	TestUserGroupInformation#testGetServerSideGroups fails on Windows due to failure to find winutils.exe	Major	test	Chris Nauroth	Chris Nauroth
HADOOP-9496	Bad merge of HADOOP-9450 on branch-2 breaks all bin/hadoop calls that need HADOOP_CLASSPATH	Critical	bin	Gopal V	Harsh J
HADOOP-9490	LocalFileSystem#reportChecksumFailure not closing the checksum file handle before rename	Major	fs	Ivan Mitic	Ivan Mitic
HADOOP-9488	FileUtil#createJarWithClassPath only substitutes environment variables from current process environment/does not support overriding when launching new process	Major	fs	Chris Nauroth	Chris Nauroth
HADOOP-9486	Promote Windows and Shell related utils from YARN to Hadoop Common	Major	.	Vinod Kumar Vavilapalli	Chris Nauroth
HADOOP-9485	No default value in the code for hadoop.rpc.socket.factory.class.default	Minor	net	Colin Patrick McCabe	Colin Patrick McCabe
HADOOP-9481	Broken conditional logic with HADOOP_SNAPPY_LIBRARY	Minor	.	Vadim Bondarev	Vadim Bondarev
HADOOP-9473	typo in FileUtil copy() method	Trivial	fs	Glen Mazza
HADOOP-9469	mapreduce/yarn source jars not included in dist tarball	Major	.	Thomas Graves	Robert Parker
HADOOP-9459	ActiveStandbyElector can join election even before Service HEALTHY, and results in null data at ActiveBreadCrumb	Critical	ha	Vinayakumar B	Vinayakumar B
HADOOP-9455	HADOOP_CLIENT_OPTS appended twice causes JVM failures	Minor	bin	Sangjin Lee	Chris Nauroth
HADOOP-9451	Node with one topology layer should be handled as fault topology when NodeGroup layer is enabled	Major	net	Junping Du	Junping Du
HADOOP-9443	Port winutils static code analysis change to trunk	Major	.	Chuan Liu	Chuan Liu
HADOOP-9439	JniBasedUnixGroupsMapping: fix some crash bugs	Minor	native	Colin Patrick McCabe	Colin Patrick McCabe
HADOOP-9437	TestNativeIO#testRenameTo fails on Windows due to assumption that POSIX errno is embedded in NativeIOException	Major	test	Chris Nauroth	Chris Nauroth
HADOOP-9430	TestSSLFactory fails on IBM JVM	Major	security	Amir Sanjar
HADOOP-9429	TestConfiguration fails with IBM JAVA	Major	test	Amir Sanjar
HADOOP-9413	Introduce common utils for File#setReadable/Writable/Executable and File#canRead/Write/Execute that work cross-platform	Major	.	Ivan Mitic	Ivan Mitic
HADOOP-9408	misleading description for net.topology.table.file.name property in core-default.xml	Minor	conf	rajeshbabu	rajeshbabu
HADOOP-9407	commons-daemon 1.0.3 dependency has bad group id causing build issues	Major	build	Sangjin Lee	Sangjin Lee
HADOOP-9397	Incremental dist tar build fails	Major	build	Jason Lowe	Chris Nauroth
HADOOP-9388	TestFsShellCopy fails on Windows	Major	.	Ivan Mitic	Ivan Mitic
HADOOP-9387	TestDFVariations fails on Windows after the merge	Minor	fs	Ivan Mitic	Ivan Mitic
HADOOP-9376	TestProxyUserFromEnv fails on a Windows domain joined machine	Major	.	Ivan Mitic	Ivan Mitic
HADOOP-9373	Merge CHANGES.branch-trunk-win.txt to CHANGES.txt	Minor	.	Suresh Srinivas	Suresh Srinivas
HADOOP-9372	Fix bad timeout annotations on tests	Major	.	Arpit Agarwal	Arpit Agarwal
HADOOP-9369	DNS#reverseDns() can return hostname with . appended at the end	Major	net	Karthik Kambatla	Karthik Kambatla
HADOOP-9365	TestHAZKUtil fails on Windows	Major	.	Ivan Mitic	Ivan Mitic
HADOOP-9364	PathData#expandAsGlob does not return correct results for absolute paths on Windows	Major	.	Ivan Mitic	Ivan Mitic
HADOOP-9358	“Auth failed” log should include exception string	Major	ipc, security	Todd Lipcon	Todd Lipcon
HADOOP-9353	Activate native-win profile by default on Windows	Major	build	Arpit Agarwal	Arpit Agarwal
HADOOP-9349	Confusing output when running hadoop version from one hadoop installation when HADOOP_HOME points to another	Major	tools	Sandy Ryza	Sandy Ryza
HADOOP-9342	Remove jline from distribution	Major	build	Thomas Weise	Thomas Weise
HADOOP-9339	IPC.Server incorrectly sets UGI auth type	Major	ipc	Daryn Sharp	Daryn Sharp
HADOOP-9337	org.apache.hadoop.fs.DF.getMount() does not work on Mac OS	Major	.	Ivan A. Veselovsky	Ivan A. Veselovsky
HADOOP-9323	Typos in API documentation	Minor	documentation, fs, io, record	Hao Zhong	Suresh Srinivas
HADOOP-9307	BufferedFSInputStream.read returns wrong results after certain seeks	Major	fs	Todd Lipcon	Todd Lipcon
HADOOP-9305	Add support for running the Hadoop client on 64-bit AIX	Major	security	Aaron T. Myers	Aaron T. Myers
HADOOP-9304	remove addition of avro genreated-sources dirs to build	Major	build	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-9303	command manual dfsadmin missing entry for restoreFailedStorage option	Major	.	Thomas Graves	Andy Isaacson
HADOOP-9302	HDFS docs not linked from top level	Major	documentation	Thomas Graves	Andy Isaacson
HADOOP-9297	remove old record IO generation and tests	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-9294	GetGroupsTestBase fails on Windows	Major	test	Chris Nauroth	Chris Nauroth
HADOOP-9290	Some tests cannot load native library	Major	build, native	Arpit Agarwal	Chris Nauroth
HADOOP-9267	hadoop -help, -h, --help should show usage instructions	Minor	.	Andrew Wang	Andrew Wang
HADOOP-9264	port change to use Java untar API on Windows from branch-1-win to trunk	Major	fs	Chris Nauroth	Chris Nauroth
HADOOP-9246	Execution phase for hadoop-maven-plugin should be process-resources	Major	build	Karthik Kambatla	Karthik Kambatla
HADOOP-9245	mvn clean without running mvn install before fails	Major	build	Karthik Kambatla	Karthik Kambatla
HADOOP-9230	TestUniformSizeInputFormat fails intermittently	Major	test	Karthik Kambatla	Karthik Kambatla
HADOOP-9228	FileSystemContractTestBase never verifies that files are files	Minor	fs	Steve Loughran	Steve Loughran
HADOOP-9220	Unnecessary transition to standby in ActiveStandbyElector	Critical	ha	Tom White	Tom White
HADOOP-9211	HADOOP_CLIENT_OPTS default setting fixes max heap size at 128m, disregards HADOOP_HEAPSIZE	Major	conf	Sarah Weissman	Plamen Jeliazkov
HADOOP-9154	SortedMapWritable#putAll() doesn't add key/value classes to the map	Major	io	Karthik Kambatla	Karthik Kambatla
HADOOP-9150	Unnecessary DNS resolution attempts for logical URIs	Critical	fs/s3, ha, performance, viewfs	Todd Lipcon	Todd Lipcon
HADOOP-9131	TestLocalFileSystem#testListStatusWithColons cannot run on Windows	Major	test	Chris Nauroth	Chris Nauroth
HADOOP-9125	LdapGroupsMapping threw CommunicationException after some idle time	Major	security	Kai Zheng	Kai Zheng
HADOOP-9043	disallow in winutils creating symlinks with forwards slashes	Major	util	Chris Nauroth	Chris Nauroth
HADOOP-8982	TestSocketIOWithTimeout fails on Windows	Major	net	Chris Nauroth	Chris Nauroth
HADOOP-8973	DiskChecker cannot reliably detect an inaccessible disk on Windows with NTFS ACLs	Major	util	Chris Nauroth	Chris Nauroth
HADOOP-8958	ViewFs:Non absolute mount name failures when running multiple tests on Windows	Major	viewfs	Chris Nauroth	Chris Nauroth
HADOOP-8957	AbstractFileSystem#IsValidName should be overridden for embedded file systems like ViewFs	Major	fs	Chris Nauroth	Chris Nauroth
HADOOP-8917	add LOCALE.US to toLowerCase in SecurityUtil.replacePattern	Major	.	Arpit Gupta	Arpit Gupta
HADOOP-8569	CMakeLists.txt: define _GNU_SOURCE and _LARGEFILE_SOURCE	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HADOOP-8440	HarFileSystem.decodeHarURI fails for URIs whose host contains numbers	Minor	fs	Ivan Mitic	Ivan Mitic
HADOOP-7487	DF should throw a more reasonable exception when mount cannot be determined	Major	fs	Todd Lipcon	Andrew Wang
HADOOP-7391	Document Interface Classification from HADOOP-5073	Major	.	Sanjay Radia	Sanjay Radia
HDFS-5024	Make DatanodeProtocol#commitBlockSynchronization idempotent	Major	namenode	Arpit Agarwal	Arpit Agarwal
HDFS-5018	Misspelled DFSConfigKeys#DFS_NAMENODE_STALE_DATANODE_INTERVAL_DEFAULT in javadoc of DatanodeInfo#isStale()	Minor	.	Ted Yu	Ted Yu
HDFS-5016	Deadlock in pipeline recovery causes Datanode to be marked dead	Blocker	.	Devaraj Das	Suresh Srinivas
HDFS-5005	Move SnapshotException and SnapshotAccessControlException to o.a.h.hdfs.protocol	Major	.	Jing Zhao	Jing Zhao
HDFS-5003	TestNNThroughputBenchmark failed caused by existing directories	Minor	test	Xi Fang	Xi Fang
HDFS-4999	fix TestShortCircuitLocalRead on branch-2	Major	.	Kihwal Lee	Colin Patrick McCabe
HDFS-4998	TestUnderReplicatedBlocks fails intermittently	Major	test	Kihwal Lee	Kihwal Lee
HDFS-4982	JournalNode should relogin from keytab before fetching logs from other JNs	Major	journal-node, security	Todd Lipcon	Todd Lipcon
HDFS-4980	Incorrect logging.properties file for hadoop-httpfs	Major	build	Mark Grover	Mark Grover
HDFS-4969	WebhdfsFileSystem expects non-standard WEBHDFS Json element	Blocker	test, webhdfs	Robert Kanter	Robert Kanter
HDFS-4954	compile failure in branch-2: getFlushedOffset should catch or rethrow IOException	Major	nfs	Brandon Li	Brandon Li
HDFS-4951	FsShell commands using secure httpfs throw exceptions due to missing TokenRenewer	Major	security	Robert Kanter	Robert Kanter
HDFS-4948	mvn site for hadoop-hdfs-nfs fails	Major	.	Robert Joseph Evans	Brandon Li
HDFS-4944	WebHDFS cannot create a file path containing characters that must be URI-encoded, such as space.	Major	webhdfs	Chris Nauroth	Chris Nauroth
HDFS-4943	WebHdfsFileSystem does not work when original file path has encoded chars	Minor	webhdfs	Jerry He	Jerry He
HDFS-4927	CreateEditsLog creates inodes with an invalid inode ID, which then cannot be loaded by a namenode.	Minor	test	Chris Nauroth	Chris Nauroth
HDFS-4917	Start-dfs.sh cannot pass the parameters correctly	Major	datanode, namenode	Fengdong Yu	Fengdong Yu
HDFS-4910	TestPermission failed in branch-2	Major	.	Chuan Liu	Chuan Liu
HDFS-4906	HDFS Output streams should not accept writes after being closed	Major	hdfs-client	Aaron T. Myers	Aaron T. Myers
HDFS-4902	DFSClient.getSnapshotDiffReport should use string path rather than o.a.h.fs.Path	Major	snapshots	Binglin Chang	Binglin Chang
HDFS-4888	Refactor and fix FSNamesystem.getTurnOffTip to sanity	Major	.	Ravi Prakash	Ravi Prakash
HDFS-4887	TestNNThroughputBenchmark exits abruptly	Blocker	benchmarks, test	Kihwal Lee	Kihwal Lee
HDFS-4883	complete() should verify fileId	Major	namenode	Konstantin Shvachko	Tao Luo
HDFS-4880	Diagnostic logging while loading name/edits files	Major	namenode	Arpit Agarwal	Suresh Srinivas
HDFS-4878	On Remove Block, Block is not Removed from neededReplications queue	Major	namenode	Tao Luo	Tao Luo
HDFS-4877	Snapshot: fix the scenario where a directory is renamed under its prior descendant	Blocker	snapshots	Jing Zhao	Jing Zhao
HDFS-4873	callGetBlockLocations returns incorrect number of blocks for snapshotted files	Major	snapshots	Hari Mankude	Jing Zhao
HDFS-4867	metaSave NPEs when there are invalid blocks in repl queue.	Major	namenode	Kihwal Lee	Plamen Jeliazkov
HDFS-4865	Remove sub resource warning from httpfs log at startup time	Major	.	Wei Yan	Wei Yan
HDFS-4863	The root directory should be added to the snapshottable directory list while loading fsimage	Major	snapshots	Jing Zhao	Jing Zhao
HDFS-4862	SafeModeInfo.isManual() returns true when resources are low even if it wasn't entered into manually	Major	.	Ravi Prakash	Ravi Prakash
HDFS-4857	Snapshot.Root and AbstractINodeDiff#snapshotINode should not be put into INodeMap when loading FSImage	Major	snapshots	Jing Zhao	Jing Zhao
HDFS-4850	fix OfflineImageViewer to work on fsimages with empty files or snapshots	Major	tools	Stephen Chu	Jing Zhao
HDFS-4846	Clean up snapshot CLI commands output stacktrace for invalid arguments	Minor	snapshots	Stephen Chu	Jing Zhao
HDFS-4845	FSEditLogLoader gets NPE while accessing INodeMap in TestEditLogRace	Critical	namenode	Kihwal Lee	Arpit Agarwal
HDFS-4841	FsShell commands using secure webhfds fail ClientFinalizer shutdown hook	Major	security, webhdfs	Stephen Chu	Robert Kanter
HDFS-4840	ReplicationMonitor gets NPE during shutdown	Major	namenode	Kihwal Lee	Kihwal Lee
HDFS-4832	Namenode doesn't change the number of missing blocks in safemode when DNs rejoin or leave	Critical	.	Ravi Prakash	Ravi Prakash
HDFS-4830	Typo in config settings for AvailableSpaceVolumeChoosingPolicy in hdfs-default.xml	Minor	.	Aaron T. Myers	Aaron T. Myers
HDFS-4827	Slight update to the implementation of API for handling favored nodes in DFSClient	Major	.	Devaraj Das	Devaraj Das
HDFS-4826	TestNestedSnapshots times out due to repeated slow edit log flushes when running on virtualized disk	Minor	test	Chris Nauroth	Chris Nauroth
HDFS-4825	webhdfs / httpfs tests broken because of min block size change	Major	webhdfs	Andrew Wang	Andrew Wang
HDFS-4824	FileInputStreamCache.close leaves dangling reference to FileInputStreamCache.cacheCleaner	Major	hdfs-client	Henry Robinson	Colin Patrick McCabe
HDFS-4818	several HDFS tests that attempt to make directories unusable do not work correctly on Windows	Minor	namenode, test	Chris Nauroth	Chris Nauroth
HDFS-4815	TestRBWBlockInvalidation#testBlockInvalidationWhenRBWReplicaMissedInDN: Double call countReplicas() to fetch corruptReplicas and liveReplicas is not needed	Major	datanode, test	Tian Hong Wang	Tian Hong Wang
HDFS-4813	BlocksMap may throw NullPointerException during shutdown	Minor	namenode	Tsz Wo Nicholas Sze	Jing Zhao
HDFS-4810	several HDFS HA tests have timeouts that are too short	Major	test	Chris Nauroth	Chris Nauroth
HDFS-4807	DFSOutputStream.createSocketForPipeline() should not include timeout extension on connect	Major	.	Kihwal Lee	Cristina L. Abad
HDFS-4805	Webhdfs client is fragile to token renewal errors	Critical	webhdfs	Daryn Sharp	Daryn Sharp
HDFS-4799	Corrupt replica can be prematurely removed from corruptReplicas map	Blocker	namenode	Todd Lipcon	Todd Lipcon
HDFS-4797	BlockScanInfo does not override equals(..) and hashCode() consistently	Minor	datanode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4783	TestDelegationTokensWithHA#testHAUtilClonesDelegationTokens fails on Windows	Major	test	Chris Nauroth	Chris Nauroth
HDFS-4780	Use the correct relogin method for services	Minor	namenode	Kihwal Lee	Robert Parker
HDFS-4778	Invoke getPipeline in the chooseTarget implementation that has favoredNodes	Major	namenode	Devaraj Das	Devaraj Das
HDFS-4768	File handle leak in datanode when a block pool is removed	Major	datanode	Chris Nauroth	Chris Nauroth
HDFS-4765	Permission check of symlink deletion incorrectly throws UnresolvedLinkException	Major	namenode	Andrew Wang	Andrew Wang
HDFS-4751	TestLeaseRenewer#testThreadName flakes	Minor	test	Andrew Wang	Andrew Wang
HDFS-4748	MiniJournalCluster#restartJournalNode leaks resources, which causes sporadic test failures	Major	qjm, test	Chris Nauroth	Chris Nauroth
HDFS-4745	TestDataTransferKeepalive#testSlowReader has race condition that causes sporadic failure	Major	test	Chris Nauroth	Chris Nauroth
HDFS-4743	TestNNStorageRetentionManager fails on Windows	Major	test	Chris Nauroth	Chris Nauroth
HDFS-4741	TestStorageRestore#testStorageRestoreFailure fails on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HDFS-4740	Fixes for a few test failures on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HDFS-4739	NN can miscalculate the number of extra edit log segments to retain	Major	namenode	Aaron T. Myers	Aaron T. Myers
HDFS-4737	JVM path embedded in fuse binaries	Major	.	Sean Mackrory	Sean Mackrory
HDFS-4734	HDFS Tests that use ShellCommandFencer are broken on Windows	Major	.	Arpit Agarwal	Arpit Agarwal
HDFS-4733	Make HttpFS username pattern configurable	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-4732	TestDFSUpgradeFromImage fails on Windows due to failure to unpack old image tarball that contains hard links	Minor	test	Chris Nauroth	Chris Nauroth
HDFS-4725	fix HDFS file handle leaks	Major	namenode, test, tools	Chris Nauroth	Chris Nauroth
HDFS-4722	TestGetConf#testFederation times out on Windows	Major	test	Ivan Mitic	Ivan Mitic
HDFS-4714	Log short messages in Namenode RPC server for exceptions meant for clients	Major	namenode	Kihwal Lee	Kihwal Lee
HDFS-4705	Address HDFS test failures on Windows because of invalid dfs.namenode.name.dir	Minor	.	Ivan Mitic	Ivan Mitic
HDFS-4699	TestPipelinesFailover#testPipelineRecoveryStress fails sporadically	Major	test	Chris Nauroth	Chris Nauroth
HDFS-4695	TestEditLog leaks open file handles between tests	Major	test	Ivan Mitic	Ivan Mitic
HDFS-4693	Some test cases in TestCheckpoint do not clean up after themselves	Minor	test	Arpit Agarwal	Arpit Agarwal
HDFS-4687	TestDelegationTokenForProxyUser#testWebHdfsDoAs is flaky with JDK7	Minor	test	Andrew Wang	Andrew Wang
HDFS-4677	Editlog should support synchronous writes	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4676	TestHDFSFileSystemContract should set MiniDFSCluster variable to null to free up memory	Minor	test	Suresh Srinivas	Suresh Srinivas
HDFS-4674	TestBPOfferService fails on Windows due to failure parsing datanode data directory as URI	Major	test	Chris Nauroth	Chris Nauroth
HDFS-4669	TestBlockPoolManager fails using IBM java	Major	test	Tian Hong Wang	Tian Hong Wang
HDFS-4658	Standby NN will log that it has received a block report “after becoming active”	Trivial	ha, namenode	Aaron T. Myers	Aaron T. Myers
HDFS-4655	DNA_FINALIZE is logged as being an unknown command by the DN when received from the standby NN	Minor	datanode	Aaron T. Myers	Aaron T. Myers
HDFS-4643	Fix flakiness in TestQuorumJournalManager	Trivial	qjm, test	Todd Lipcon	Todd Lipcon
HDFS-4639	startFileInternal() should not increment generation stamp	Major	namenode	Konstantin Shvachko	Plamen Jeliazkov
HDFS-4625	Make TestNNWithQJM#testNewNamenodeTakesOverWriter work on Windows	Minor	test	Arpit Agarwal	Ivan Mitic
HDFS-4621	additional logging to help diagnose slow QJM logSync	Minor	ha, qjm	Todd Lipcon	Todd Lipcon
HDFS-4620	Documentation for dfs.namenode.rpc-address specifies wrong format	Major	documentation	Sandy Ryza	Sandy Ryza
HDFS-4618	default for checkpoint txn interval is too low	Major	namenode	Todd Lipcon	Todd Lipcon
HDFS-4615	Fix TestDFSShell failures on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HDFS-4614	FSNamesystem#getContentSummary should use getPermissionChecker helper method	Trivial	namenode	Aaron T. Myers	Aaron T. Myers
HDFS-4610	Move to using common utils FileUtil#setReadable/Writable/Executable and FileUtil#canRead/Write/Execute	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4609	TestAuditLogs should release log handles between tests	Minor	test	Ivan Mitic	Ivan Mitic
HDFS-4607	TestGetConf#testGetSpecificKey fails on Windows	Minor	test	Ivan Mitic	Ivan Mitic
HDFS-4604	TestJournalNode fails on Windows	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4603	TestMiniDFSCluster fails on Windows	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4598	WebHDFS concat: the default value of sources in the code does not match the doc	Minor	webhdfs	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4596	Shutting down namenode during checkpointing can lead to md5sum error	Major	namenode	Andrew Wang	Andrew Wang
HDFS-4595	When short circuit read is fails, DFSClient does not fallback to regular reads	Major	hdfs-client	Suresh Srinivas	Suresh Srinivas
HDFS-4593	TestSaveNamespace fails on Windows	Major	.	Arpit Agarwal	Arpit Agarwal
HDFS-4592	Default values for access time precision are out of sync between hdfs-default.xml and the code	Minor	namenode	Aaron T. Myers	Aaron T. Myers
HDFS-4591	HA clients can fail to fail over while Standby NN is performing long checkpoint	Major	ha, namenode	Aaron T. Myers	Aaron T. Myers
HDFS-4586	TestDataDirs.testGetDataDirsFromURIs fails with all directories in dfs.datanode.data.dir are invalid	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4584	Fix TestNNWithQJM failures on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HDFS-4583	TestNodeCount fails	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4582	TestHostsFiles fails on Windows	Major	.	Ivan Mitic	Ivan Mitic
HDFS-4573	Fix TestINodeFile on Windows	Major	test	Arpit Agarwal	Arpit Agarwal
HDFS-4572	Fix TestJournal failures on Windows	Major	namenode, test	Arpit Agarwal	Arpit Agarwal
HDFS-4544	Error in deleting blocks should not do check disk, for all types of errors	Major	.	Amareshwari Sriramadasu	Arpit Agarwal
HDFS-4541	set hadoop.log.dir and hadoop.id.str when starting secure datanode so it writes the logs to the correct dir by default	Major	datanode, security	Arpit Gupta	Arpit Gupta
HDFS-4540	namenode http server should use the web authentication keytab for spnego principal	Major	security	Arpit Gupta	Arpit Gupta
HDFS-4533	start-dfs.sh ignored additional parameters besides -upgrade	Major	datanode, namenode	Fengdong Yu	Fengdong Yu
HDFS-4532	RPC call queue may fill due to current user lookup	Critical	namenode	Daryn Sharp	Daryn Sharp
HDFS-4522	LightWeightGSet expects incrementing a volatile to be atomic	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4519	Support override of jsvc binary and log file locations when launching secure datanode.	Major	datanode, scripts	Chris Nauroth	Chris Nauroth
HDFS-4518	Finer grained metrics for HDFS capacity	Major	.	Arpit Agarwal	Arpit Agarwal
HDFS-4495	Allow client-side lease renewal to be retried beyond soft-limit	Major	hdfs-client	Kihwal Lee	Kihwal Lee
HDFS-4489	Use InodeID as as an identifier of a file in HDFS protocols and APIs	Major	namenode	Brandon Li	Brandon Li
HDFS-4484	libwebhdfs compilation broken with gcc 4.6.2	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4477	Secondary namenode may retain old tokens	Critical	security	Kihwal Lee	Daryn Sharp
HDFS-4471	Namenode WebUI file browsing does not work with wildcard addresses configured	Major	namenode	Andrew Wang	Andrew Wang
HDFS-4470	several HDFS tests attempt file operations on invalid HDFS paths when running on Windows	Major	.	Chris Nauroth	Chris Nauroth
HDFS-4382	Fix typo MAX_NOT_CHANGED_INTERATIONS	Major	.	Ted Yu	Ted Yu
HDFS-4342	Edits dir in dfs.namenode.edits.dir.required will be silently ignored if it is not in dfs.namenode.edits.dir	Major	namenode	Mark Yang	Arpit Agarwal
HDFS-4300	TransferFsImage.downloadEditsToStorage should use a tmp file for destination	Critical	.	Todd Lipcon	Andrew Wang
HDFS-4298	StorageRetentionManager spews warnings when used with QJM	Major	namenode	Todd Lipcon	Aaron T. Myers
HDFS-4296	Add layout version for HDFS-4256 for release 1.2.0	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4287	HTTPFS tests fail on Windows	Major	webhdfs	Chris Nauroth	Chris Nauroth
HDFS-4269	DatanodeManager#registerDatanode rejects all datanode registrations from localhost in single-node developer setup	Major	namenode	Chris Nauroth	Chris Nauroth
HDFS-4261	TestBalancerWithNodeGroup times out	Major	balancer & mover	Tsz Wo Nicholas Sze	Junping Du
HDFS-4243	INodeDirectory.replaceChild(..) does not update parent	Major	namenode	Tsz Wo Nicholas Sze	Jing Zhao
HDFS-4240	In nodegroup-aware case, make sure nodes are avoided to place replica if some replica are already under the same nodegroup	Major	namenode	Junping Du	Junping Du
HDFS-4235	when outputting XML, OfflineEditsViewer can't handle some edits containing non-ASCII strings	Minor	.	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4222	NN is unresponsive and loses heartbeats of DNs when Hadoop is configured to use LDAP and LDAP has issues	Minor	namenode	Xiaobo Peng	Xiaobo Peng
HDFS-4209	Clean up the addNode/addChild/addChildNoQuotaCheck methods in FSDirectory	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4205	fsck fails with symlinks	Major	hdfs-client	Andy Isaacson	Jason Lowe
HDFS-4128	2NN gets stuck in inconsistent state if edit log replay fails in the middle	Major	namenode	Todd Lipcon	Kihwal Lee
HDFS-4013	TestHftpURLTimeouts throws NPE	Trivial	hdfs-client	Chao Shi	Chao Shi
HDFS-3934	duplicative dfs_hosts entries handled wrong	Minor	.	Andy Isaacson	Colin Patrick McCabe
HDFS-3875	Issue handling checksum errors in write pipeline	Critical	datanode, hdfs-client	Todd Lipcon	Kihwal Lee
HDFS-3792	Fix two findbugs introduced by HDFS-3695	Trivial	build, namenode	Todd Lipcon	Todd Lipcon
HDFS-3499	Make NetworkTopology support user specified topology class	Major	datanode	Junping Du	Junping Du
HDFS-3277	fail over to loading a different FSImage if the first one we try to load is corrupt	Major	.	Colin Patrick McCabe	Andrew Wang
HDFS-3180	Add socket timeouts to webhdfs	Major	webhdfs	Daryn Sharp	Chris Nauroth
HDFS-3009	DFSClient islocaladdress() can use similar routine in netutils	Trivial	hdfs-client	Hari Mankude	Hari Mankude
MAPREDUCE-5421	TestNonExistentJob is failed due to recent changes in YARN	Blocker	test	Junping Du	Junping Du
MAPREDUCE-5419	TestSlive is getting FileNotFound Exception	Major	mrv2	Robert Parker	Robert Parker
MAPREDUCE-5412	Change MR to use multiple containers API of ContainerManager after YARN-926	Major	.	Jian He	Jian He
MAPREDUCE-5399	Unnecessary Configuration instantiation in IFileInputStream slows down merge	Blocker	mrv1, mrv2	Stanislav Barton	Stanislav Barton
MAPREDUCE-5366	TestMRAsyncDiskService fails on Windows	Minor	test	Chuan Liu	Chuan Liu
MAPREDUCE-5360	TestMRJobClient fails on Windows due to path format	Minor	test	Chuan Liu	Chuan Liu
MAPREDUCE-5359	JobHistory should not use File.separator to match timestamp in path	Minor	.	Chuan Liu	Chuan Liu
MAPREDUCE-5357	Job staging directory owner checking could fail on Windows	Minor	.	Chuan Liu	Chuan Liu
MAPREDUCE-5355	MiniMRYarnCluster with localFs does not work on Windows	Minor	.	Chuan Liu	Chuan Liu
MAPREDUCE-5349	TestClusterMapReduceTestCase and TestJobName fail on Windows in branch-2	Minor	.	Chuan Liu	Chuan Liu
MAPREDUCE-5334	TestContainerLauncherImpl is failing	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
MAPREDUCE-5328	ClientToken should not be set in the environment	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
MAPREDUCE-5326	Add version to shuffle header	Blocker	.	Arun C Murthy	Zhijie Shen
MAPREDUCE-5325	ClientRMProtocol.getAllApplications should accept ApplicationType as a parameter---MR changes	Major	.	Xuan Gong	Xuan Gong
MAPREDUCE-5319	Job.xml file does not has ‘user.name’ property for Hadoop2	Major	.	Yesha Vora	Xuan Gong
MAPREDUCE-5315	DistCp reports success even on failure.	Critical	distcp	Mithun Radhakrishnan	Mithun Radhakrishnan
MAPREDUCE-5312	TestRMNMInfo is failing	Major	.	Alejandro Abdelnur	Sandy Ryza
MAPREDUCE-5310	MRAM should not normalize allocation request capabilities	Major	applicationmaster	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-5308	Shuffling to memory can get out-of-sync when fetching multiple compressed map outputs	Major	.	Nathan Roberts	Nathan Roberts
MAPREDUCE-5303	Changes on MR after moving ProtoBase to package impl.pb on YARN-724	Major	.	Jian He	Jian He
MAPREDUCE-5301	Update MR code to work with YARN-635 changes	Major	.	Siddharth Seth	Siddharth Seth
MAPREDUCE-5297	Update MR App since BuilderUtils is moved to yarn-server-common after YARN-748	Major	.	Jian He	Jian He
MAPREDUCE-5291	Change MR App to use update property names in container-log4j.properties	Major	.	Siddharth Seth	Zhijie Shen
MAPREDUCE-5289	Update MR App to use Token directly after YARN-717	Major	.	Vinod Kumar Vavilapalli	Jian He
MAPREDUCE-5285	Update MR App to use immutable ApplicationAttemptID, ContainerID, NodeID after YARN-735	Major	.	Jian He
MAPREDUCE-5282	Update MR App to use immutable ApplicationID after YARN-716	Major	.	Vinod Kumar Vavilapalli	Siddharth Seth
MAPREDUCE-5270	Migrate from using BuilderUtil factory methods to individual record factory method on MapReduce side	Major	.	Jian He	Jian He
MAPREDUCE-5259	TestTaskLog fails on Windows because of path separators missmatch	Major	test	Ivan Mitic	Ivan Mitic
MAPREDUCE-5257	TestContainerLauncherImpl fails	Major	mr-am, mrv2	Jason Lowe	Omkar Vinit Joshi
MAPREDUCE-5240	inside of FileOutputCommitter the initialized Credentials cache appears to be empty	Blocker	mrv2	Roman Shaposhnik	Vinod Kumar Vavilapalli
MAPREDUCE-5239	Update MR App to reflect YarnRemoteException changes after YARN-634	Major	.	Vinod Kumar Vavilapalli	Siddharth Seth
MAPREDUCE-5226	Handle exception related changes in YARN's AMRMProtocol api after YARN-630	Major	.	Xuan Gong	Xuan Gong
MAPREDUCE-5213	Re-assess TokenCache methods marked @Private	Minor	.	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-5212	Handle exception related changes in YARN's ClientRMProtocol api after YARN-631	Major	.	Xuan Gong	Xuan Gong
MAPREDUCE-5209	ShuffleScheduler log message incorrect	Minor	mrv2	Radim Kolar	Tsuyoshi Ozawa
MAPREDUCE-5208	SpillRecord and ShuffleHandler should use SecureIOUtils for reading index file and map output	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
MAPREDUCE-5205	Apps fail in secure cluster setup	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
MAPREDUCE-5204	Handle YarnRemoteException separately from IOException in MR api	Major	.	Xuan Gong	Xuan Gong
MAPREDUCE-5193	A few MR tests use block sizes which are smaller than the default minimum block size	Major	test	Aaron T. Myers	Andrew Wang
MAPREDUCE-5191	TestQueue#testQueue fails with timeout on Windows	Major	.	Ivan Mitic	Ivan Mitic
MAPREDUCE-5187	Create mapreduce command scripts on Windows	Major	mrv2	Chuan Liu	Chuan Liu
MAPREDUCE-5181	RMCommunicator should not use AMToken from the env	Major	applicationmaster	Siddharth Seth	Vinod Kumar Vavilapalli
MAPREDUCE-5179	Change TestHSWebServices to do string equal check on hadoop build version similar to YARN-605	Major	.	Hitesh Shah	Hitesh Shah
MAPREDUCE-5178	Fix use of BuilderUtils#newApplicationReport as a result of YARN-577.	Major	.	Hitesh Shah	Hitesh Shah
MAPREDUCE-5177	Move to common utils FileUtil#setReadable/Writable/Executable and FileUtil#canRead/Write/Execute	Major	.	Ivan Mitic	Ivan Mitic
MAPREDUCE-5175	Update MR App to not set envs that will be set by NMs anyways after YARN-561	Major	.	Vinod Kumar Vavilapalli	Xuan Gong
MAPREDUCE-5167	Update MR App after YARN-562	Major	.	Vinod Kumar Vavilapalli	Jian He
MAPREDUCE-5166	ConcurrentModificationException in LocalJobRunner	Blocker	.	Gunther Hagleitner	Sandy Ryza
MAPREDUCE-5163	Update MR App after YARN-441	Major	.	Vinod Kumar Vavilapalli	Xuan Gong
MAPREDUCE-5152	MR App is not using Container from RM	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
MAPREDUCE-5151	Update MR App after YARN-444	Major	.	Vinod Kumar Vavilapalli	Sandy Ryza
MAPREDUCE-5147	Maven build should create hadoop-mapreduce-client-app-VERSION.jar directly	Major	mrv2	Robert Parker	Robert Parker
MAPREDUCE-5146	application classloader may be used too early to load classes	Minor	task	Sangjin Lee	Sangjin Lee
MAPREDUCE-5145	Change default max-attempts to be more than one for MR jobs as well	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5140	MR part of YARN-514	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5139	Update MR App after YARN-486	Major	.	Vinod Kumar Vavilapalli	Xuan Gong
MAPREDUCE-5138	Fix LocalDistributedCacheManager after YARN-112	Major	.	Vinod Kumar Vavilapalli	Omkar Vinit Joshi
MAPREDUCE-5137	AM web UI: clicking on Map Task results in 500 error	Major	applicationmaster	Thomas Graves	Thomas Graves
MAPREDUCE-5136	TestJobImpl->testJobNoTasks fails with IBM JAVA	Major	.	Amir Sanjar	Amir Sanjar
MAPREDUCE-5113	Streaming input/output types are ignored with java mapper/reducer	Major	.	Sandy Ryza	Sandy Ryza
MAPREDUCE-5098	Fix findbugs warnings in gridmix	Major	contrib/gridmix	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-5078	TestMRAppMaster fails on Windows due to mismatched path separators	Major	client	Chris Nauroth	Chris Nauroth
MAPREDUCE-5077	Cleanup: mapreduce.util.ResourceCalculatorPlugin and related code should be removed	Minor	mrv2	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-5075	DistCp leaks input file handles	Major	distcp	Chris Nauroth	Chris Nauroth
MAPREDUCE-5066	JobTracker should set a timeout when calling into job.end.notification.url	Major	.	Ivan Mitic	Ivan Mitic
MAPREDUCE-5065	DistCp should skip checksum comparisons if block-sizes are different on source/target.	Major	distcp	Mithun Radhakrishnan	Mithun Radhakrishnan
MAPREDUCE-5062	MR AM should read max-retries information from the RM	Major	.	Vinod Kumar Vavilapalli	Zhijie Shen
MAPREDUCE-5060	Fetch failures that time out only count against the first map task	Critical	.	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-5059	Job overview shows average merge time larger than for any reduce attempt	Major	jobhistoryserver, webapps	Jason Lowe	Omkar Vinit Joshi
MAPREDUCE-5043	Fetch failure processing can cause AM event queue to backup and eventually OOM	Blocker	mr-am	Jason Lowe	Jason Lowe
MAPREDUCE-5042	Reducer unable to fetch for a map task that was recovered	Blocker	mr-am, security	Jason Lowe	Jason Lowe
MAPREDUCE-5027	Shuffle does not limit number of outstanding connections	Major	.	Jason Lowe	Robert Parker
MAPREDUCE-5013	mapred.JobStatus compatibility: MR2 missing constructors from MR1	Major	client	Sandy Ryza	Sandy Ryza
MAPREDUCE-5009	Killing the Task Attempt slated for commit does not clear the value from the Task commitAttempt member	Critical	mrv1	Robert Parker	Robert Parker
MAPREDUCE-5008	Merger progress miscounts with respect to EOF_MARKER	Major	.	Sandy Ryza	Sandy Ryza
MAPREDUCE-5000	TaskImpl.getCounters() can return the counters for the wrong task attempt when task is speculating	Critical	mr-am	Jason Lowe	Jason Lowe
MAPREDUCE-4994	-jt generic command line option does not work	Major	client	Sandy Ryza	Sandy Ryza
MAPREDUCE-4992	AM hangs in RecoveryService when recovering tasks with speculative attempts	Critical	mr-am	Robert Parker	Robert Parker
MAPREDUCE-4987	TestMRJobs#testDistributedCache fails on Windows due to classpath problems and unexpected behavior of symlinks	Major	distributed-cache, nodemanager	Chris Nauroth	Chris Nauroth
MAPREDUCE-4985	TestDFSIO supports compression but usages doesn't reflect	Trivial	.	Plamen Jeliazkov	Plamen Jeliazkov
MAPREDUCE-4981	WordMean, WordMedian, WordStandardDeviation missing from ExamplesDriver	Minor	.	Plamen Jeliazkov	Plamen Jeliazkov
MAPREDUCE-4932	mapreduce.job#getTaskCompletionEvents incompatible with Hadoop 1	Major	mrv2	Robert Kanter	Robert Kanter
MAPREDUCE-4927	Historyserver 500 error due to NPE when accessing specific counters page for failed job	Major	jobhistoryserver	Jason Lowe	Ashwin Shankar
MAPREDUCE-4898	FileOutputFormat.checkOutputSpecs and FileOutputFormat.setOutputPath incompatible with MR1	Major	mrv2	Robert Kanter	Robert Kanter
MAPREDUCE-4896	“mapred queue -info” spits out ugly exception when queue does not exist	Major	client, scheduler	Sandy Ryza	Sandy Ryza
MAPREDUCE-4892	CombineFileInputFormat node input split can be skewed on small clusters	Major	.	Bikas Saha	Bikas Saha
MAPREDUCE-4885	Streaming tests have multiple failures on Windows	Major	contrib/streaming, test	Chris Nauroth	Chris Nauroth
MAPREDUCE-4871	AM uses mapreduce.jobtracker.split.metainfo.maxsize but mapred-default has mapreduce.job.split.metainfo.maxsize	Major	mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-4794	DefaultSpeculator generates error messages on normal shutdown	Major	applicationmaster	Jason Lowe	Jason Lowe
MAPREDUCE-4716	TestHsWebServicesJobsQuery.testJobsQueryStateInvalid fails with jdk7	Major	jobhistoryserver	Thomas Graves	Thomas Graves
MAPREDUCE-4693	Historyserver should provide counters for failed tasks	Major	jobhistoryserver, mrv2	Jason Lowe	Xuan Gong
MAPREDUCE-4671	AM does not tell the RM about container requests that are no longer needed	Major	.	Bikas Saha	Bikas Saha
MAPREDUCE-4571	TestHsWebServicesJobs fails on jdk7	Major	webapps	Thomas Graves	Thomas Graves
MAPREDUCE-4374	Fix child task environment variable config and add support for Windows	Minor	mrv2	Chuan Liu	Chuan Liu
MAPREDUCE-4356	Provide access to ParsedTask.obtainTaskAttempts()	Major	tools/rumen	Ravi Gummadi	Ravi Gummadi
MAPREDUCE-4149	Rumen fails to parse certain counter strings	Major	tools/rumen	Ravi Gummadi	Ravi Gummadi
MAPREDUCE-4100	Sometimes gridmix emulates data larger much larger then acutal counter for map only jobs	Minor	contrib/gridmix	Karam Singh	Amar Kamat
MAPREDUCE-4083	GridMix emulated job tasks.resource-usage emulator for CPU usage throws NPE when Trace contains cumulativeCpuUsage value of 0 at attempt level	Major	contrib/gridmix	Karam Singh	Amar Kamat
MAPREDUCE-4019	-list-attempt-ids is not working	Minor	client	B Anil Kumar	Ashwin Shankar
MAPREDUCE-3953	Gridmix throws NPE and does not simulate a job if the trace contains null taskStatus for a task	Major	.	Ravi Gummadi	Ravi Gummadi
MAPREDUCE-3872	event handling races in ContainerLauncherImpl and TestContainerLauncher	Major	client, mrv2	Patrick Hunt	Robert Kanter
MAPREDUCE-3829	[Gridmix] Gridmix should give better error message when input-data directory already exists and -generate option is given	Major	contrib/gridmix	Ravi Gummadi	Ravi Gummadi
MAPREDUCE-3757	Rumen Folder is not adjusting the shuffleFinished and sortFinished times of reduce task attempts	Major	tools/rumen	Ravi Gummadi	Ravi Gummadi
MAPREDUCE-3685	There are some bugs in implementation of MergeManager	Critical	mrv2	anty.rao	anty
MAPREDUCE-2722	Gridmix simulated job‘s map’s hdfsBytesRead counter is wrong when compressed input is used	Major	contrib/gridmix	Ravi Gummadi	Ravi Gummadi
YARN-1046	Disable mem monitoring by default in MiniYARNCluster	Major	.	Karthik Kambatla	Karthik Kambatla
YARN-1043	YARN Queue metrics are getting pushed to neither file nor Ganglia	Major	.	Yusaku Sako	Jian He
YARN-968	RM admin commands don't work	Blocker	.	Kihwal Lee	Vinod Kumar Vavilapalli
YARN-960	TestMRCredentials and TestBinaryTokenFile are failing on trunk	Blocker	.	Alejandro Abdelnur	Daryn Sharp
YARN-945	AM register failing after AMRMToken	Blocker	.	Bikas Saha	Vinod Kumar Vavilapalli
YARN-937	Fix unmanaged AM in non-secure/secure setup post YARN-701	Blocker	applications/unmanaged-AM-launcher	Arun C Murthy	Alejandro Abdelnur
YARN-932	TestResourceLocalizationService.testLocalizationInit can fail on JDK7	Major	.	Sandy Ryza	Karthik Kambatla
YARN-919	Document setting default heap sizes in yarn env	Minor	.	Mayank Bansal	Mayank Bansal
YARN-912	Create exceptions package in common/api for yarn and move client facing exceptions to them	Major	.	Bikas Saha	Mayank Bansal
YARN-909	Disable TestLinuxContainerExecutorWithMocks on Windows	Minor	nodemanager	Chuan Liu	Chuan Liu
YARN-897	CapacityScheduler wrongly sorted queues	Blocker	capacityscheduler	Djellel Eddine Difallah	Djellel Eddine Difallah
YARN-894	NodeHealthScriptRunner timeout checking is inaccurate on Windows	Minor	nodemanager	Chuan Liu	Chuan Liu
YARN-875	Application can hang if AMRMClientAsync callback thread has exception	Major	.	Bikas Saha	Xuan Gong
YARN-874	Tracking YARN/MR test failures after HADOOP-9421 and YARN-827	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-861	TestContainerManager is failing	Critical	nodemanager	Devaraj K	Vinod Kumar Vavilapalli
YARN-854	App submission fails on secure deploy	Blocker	.	Ramya Sunil	Omkar Vinit Joshi
YARN-853	maximum-am-resource-percent doesn't work after refreshQueues command	Major	capacityscheduler	Devaraj K	Devaraj K
YARN-852	TestAggregatedLogFormat.testContainerLogsFileAccess fails on Windows	Minor	.	Chuan Liu	Chuan Liu
YARN-848	Nodemanager does not register with RM using the fully qualified hostname	Major	.	Hitesh Shah	Hitesh Shah
YARN-839	TestContainerLaunch.testContainerEnvVariables fails on Windows	Minor	.	Chuan Liu	Chuan Liu
YARN-833	Move Graph and VisualizeStateMachine into yarn.state package	Major	.	Zhijie Shen	Zhijie Shen
YARN-812	Enabling app summary logs causes ‘FileNotFound’ errors	Major	.	Ramya Sunil	Siddharth Seth
YARN-799	CgroupsLCEResourcesHandler tries to write to cgroup.procs	Major	nodemanager	Chris Riccomini	Chris Riccomini
YARN-795	Fair scheduler queue metrics should subtract allocated vCores from available vCores	Major	scheduler	Wei Yan	Wei Yan
YARN-767	Initialize Application status metrics when QueueMetrics is initialized	Major	.	Jian He	Jian He
YARN-764	blank Used Resources on Capacity Scheduler page	Major	resourcemanager	Nemon Lou	Nemon Lou
YARN-763	AMRMClientAsync should stop heartbeating after receiving shutdown from RM	Major	.	Bikas Saha	Xuan Gong
YARN-761	TestNMClientAsync fails sometimes	Major	.	Vinod Kumar Vavilapalli	Zhijie Shen
YARN-760	NodeManager throws AvroRuntimeException on failed start	Major	nodemanager	Sandy Ryza	Niranjan Singh
YARN-757	TestRMRestart failing/stuck on trunk	Blocker	.	Bikas Saha	Bikas Saha
YARN-742	Log aggregation causes a lot of redundant setPermission calls	Major	nodemanager	Kihwal Lee	Jason Lowe
YARN-733	TestNMClient fails occasionally	Major	.	Zhijie Shen	Zhijie Shen
YARN-726	Queue, FinishTime fields broken on RM UI	Critical	.	Siddharth Seth	Mayank Bansal
YARN-715	TestDistributedShell and TestUnmanagedAMLauncher are failing	Major	.	Siddharth Seth	Vinod Kumar Vavilapalli
YARN-706	Race Condition in TestFSDownload	Major	.	Zhijie Shen	Zhijie Shen
YARN-700	TestInfoBlock fails on Windows because of line ending missmatch	Major	.	Ivan Mitic	Ivan Mitic
YARN-690	RM exits on token cancel/renew problems	Blocker	resourcemanager	Daryn Sharp	Daryn Sharp
YARN-688	Containers not cleaned up when NM received SHUTDOWN event from NodeStatusUpdater	Major	.	Jian He	Jian He
YARN-661	NM fails to cleanup local directories for users	Major	nodemanager	Jason Lowe	Omkar Vinit Joshi
YARN-656	In scheduler UI, including reserved memory in “Memory Total” can make it exceed cluster capacity.	Major	resourcemanager, scheduler	Sandy Ryza	Sandy Ryza
YARN-655	Fair scheduler metrics should subtract allocated memory from available memory	Major	scheduler	Sandy Ryza	Sandy Ryza
YARN-654	AMRMClient: Perform sanity checks for parameters of public methods	Major	.	Bikas Saha	Xuan Gong
YARN-648	FS: Add documentation for pluggable policy	Major	scheduler	Karthik Kambatla	Karthik Kambatla
YARN-646	Some issues in Fair Scheduler's document	Major	documentation	Dapeng Sun	Dapeng Sun
YARN-645	Move RMDelegationTokenSecretManager from yarn-server-common to yarn-server-resourcemanager	Major	.	Jian He	Jian He
YARN-639	Make AM of Distributed Shell Use NMClient	Major	applications/distributed-shell	Zhijie Shen	Zhijie Shen
YARN-637	FS: maxAssign is not honored	Major	scheduler	Karthik Kambatla	Karthik Kambatla
YARN-618	Modify RM_INVALID_IDENTIFIER to a -ve number	Major	.	Jian He	Jian He
YARN-605	Failing unit test in TestNMWebServices when using git for source control	Major	.	Hitesh Shah	Hitesh Shah
YARN-599	Refactoring submitApplication in ClientRMService and RMAppManager	Major	.	Zhijie Shen	Zhijie Shen
YARN-597	TestFSDownload fails on Windows because of dependencies on tar/gzip/jar tools	Major	.	Ivan Mitic	Ivan Mitic
YARN-594	Update test and add comments in YARN-534	Major	.	Jian He	Jian He
YARN-593	container launch on Windows does not correctly populate classpath with new process's environment variables and localized resources	Major	nodemanager	Chris Nauroth	Chris Nauroth
YARN-586	Typo in ApplicationSubmissionContext#setApplicationId	Trivial	.	Zhijie Shen	Zhijie Shen
YARN-585	TestFairScheduler#testNotAllowSubmitApplication is broken due to YARN-514	Major	.	Zhijie Shen	Zhijie Shen
YARN-576	RM should not allow registrations from NMs that do not satisfy minimum scheduler allocations	Major	.	Hitesh Shah	Kenji Kikushima
YARN-557	TestUnmanagedAMLauncher fails on Windows	Major	applications	Chris Nauroth	Chris Nauroth
YARN-542	Change the default global AM max-attempts value to be not one	Major	.	Vinod Kumar Vavilapalli	Zhijie Shen
YARN-541	getAllocatedContainers() is not returning all the allocated containers	Blocker	resourcemanager	Krishna Kishore Bonagiri	Bikas Saha
YARN-532	RMAdminProtocolPBClientImpl should implement Closeable	Major	.	Siddharth Seth	Siddharth Seth
YARN-515	Node Manager not getting the master key	Blocker	.	Robert Joseph Evans	Robert Joseph Evans
YARN-512	Log aggregation root directory check is more expensive than it needs to be	Minor	nodemanager	Jason Lowe	Maysam Yabandeh
YARN-507	Add interface visibility and stability annotations to FS interfaces/classes	Minor	scheduler	Karthik Kambatla	Karthik Kambatla
YARN-506	Move to common utils FileUtil#setReadable/Writable/Executable and FileUtil#canRead/Write/Execute	Major	.	Ivan Mitic	Ivan Mitic
YARN-500	ResourceManager webapp is using next port if configured port is already in use	Major	resourcemanager	Nishan Shetty	Kenji Kikushima
YARN-496	Fair scheduler configs are refreshed inconsistently in reinitialize	Minor	scheduler	Sandy Ryza	Sandy Ryza
YARN-495	Change NM behavior of reboot to resync	Major	.	Jian He	Jian He
YARN-493	NodeManager job control logic flaws on Windows	Major	nodemanager	Chris Nauroth	Chris Nauroth
YARN-491	TestContainerLogsPage fails on Windows	Major	nodemanager	Chris Nauroth	Chris Nauroth
YARN-490	TestDistributedShell fails on Windows	Major	applications/distributed-shell	Chris Nauroth	Chris Nauroth
YARN-488	TestContainerManagerSecurity fails on Windows	Major	nodemanager	Chris Nauroth	Chris Nauroth
YARN-487	TestDiskFailures fails on Windows due to path mishandling	Major	nodemanager	Chris Nauroth	Chris Nauroth
YARN-485	TestProcfsProcessTree#testProcessTree() doesn't wait long enough for the process to die	Major	.	Karthik Kambatla	Karthik Kambatla
YARN-481	Add AM Host and RPC Port to ApplicationCLI Status Output	Major	client	Chris Riccomini	Chris Riccomini
YARN-479	NM retry behavior for connection to RM should be similar for lost heartbeats	Major	.	Hitesh Shah	Jian He
YARN-476	ProcfsBasedProcessTree info message confuses users	Minor	.	Jason Lowe	Sandy Ryza
YARN-474	CapacityScheduler does not activate applications when maximum-am-resource-percent configuration is refreshed	Major	capacityscheduler	Hitesh Shah	Zhijie Shen
YARN-460	CS user left in list of active users for the queue even when application finished	Blocker	capacityscheduler	Thomas Graves	Thomas Graves
YARN-458	YARN daemon addresses must be placed in many different configs	Major	nodemanager, resourcemanager	Sandy Ryza	Sandy Ryza
YARN-448	Remove unnecessary hflush from log aggregation	Major	nodemanager	Kihwal Lee	Kihwal Lee
YARN-426	Failure to download a public resource on a node prevents further downloads of the resource from that node	Critical	nodemanager	Jason Lowe	Jason Lowe
YARN-412	FifoScheduler incorrectly checking for node locality	Minor	scheduler	Roger Hoover	Roger Hoover
YARN-410	New lines in diagnostics for a failed app on the per-application page make it hard to read	Major	.	Vinod Kumar Vavilapalli	Omkar Vinit Joshi
YARN-400	RM can return null application resource usage report leading to NPE in client	Critical	resourcemanager	Jason Lowe	Jason Lowe
YARN-390	ApplicationCLI and NodeCLI use hard-coded platform-specific line separator, which causes test failures on Windows	Major	client	Chris Nauroth	Chris Nauroth
YARN-383	AMRMClientImpl should handle null rmClient in stop()	Minor	.	Hitesh Shah	Hitesh Shah
YARN-380	yarn node -status prints Last-Last-Health-Update	Major	client	Thomas Graves	Omkar Vinit Joshi
YARN-377	Fix TestContainersMonitor for HADOOP-9252	Minor	.	Tsz Wo Nicholas Sze	Chris Nauroth
YARN-376	Apps that have completed can appear as RUNNING on the NM UI	Blocker	resourcemanager	Jason Lowe	Jason Lowe
YARN-368	Fix typo “defiend” should be “defined” in error output	Trivial	.	Albert Chu	Albert Chu
YARN-363	yarn proxyserver fails to find webapps/proxy directory on startup	Major	.	Jason Lowe	Kenji Kikushima
YARN-362	Unexpected extra results when using webUI table search	Minor	.	Jason Lowe	Ravi Prakash
YARN-345	Many InvalidStateTransitonException errors for ApplicationImpl in Node Manager	Critical	nodemanager	Devaraj K	Robert Parker
YARN-333	Schedulers cannot control the queue-name of an application	Major	.	Sandy Ryza	Sandy Ryza
YARN-319	Submit a job to a queue that not allowed in fairScheduler, client will hold forever.	Major	resourcemanager, scheduler	Hong Shen	Hong Shen
YARN-289	Fair scheduler allows reservations that won't fit on node	Major	.	Sandy Ryza	Sandy Ryza
YARN-269	Resource Manager not logging the health_check_script result when taking it out	Major	resourcemanager	Thomas Graves	Jason Lowe
YARN-236	RM should point tracking URL to RM web page when app fails to start	Major	resourcemanager	Jason Lowe	Jason Lowe
YARN-227	Application expiration difficult to debug for end-users	Major	resourcemanager	Jason Lowe	Jason Lowe
YARN-209	Capacity scheduler doesn't trigger app-activation after adding nodes	Major	capacityscheduler	Bikas Saha	Zhijie Shen
YARN-196	Nodemanager should be more robust in handling connection failure to ResourceManager when a cluster is started	Major	nodemanager	Ramgopal N	Xuan Gong
YARN-193	Scheduler.normalizeRequest does not account for allocation requests that exceed maximumAllocation limits	Major	resourcemanager	Hitesh Shah	Zhijie Shen
YARN-109	.tmp file is not deleted for localized archives	Major	nodemanager	Jason Lowe	Mayank Bansal
YARN-101	If the heartbeat message loss, the nodestatus info of complete container will loss too.	Minor	nodemanager	xieguiming	Xuan Gong
YARN-71	Ensure/confirm that the NodeManager cleans up local-dirs on restart	Critical	nodemanager	Vinod Kumar Vavilapalli	Xuan Gong
YARN-45	[Preemption] Scheduler feedback to AM to release containers	Major	resourcemanager	Chris Douglas	Carlo Curino
YARN-24	Nodemanager fails to start if log aggregation enabled and namenode unavailable	Major	nodemanager	Jason Lowe	Sandy Ryza

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9624	TestFSMainOperationsLocalFileSystem failed when the Hadoop test root path has “X” in its name	Minor	test	Xi Fang	Xi Fang
HADOOP-9287	Parallel testing hadoop-common	Major	test	Tsuyoshi Ozawa	Andrey Klochkov
HADOOP-9233	Cover package org.apache.hadoop.io.compress.zlib with unit tests	Major	.	Vadim Bondarev	Vadim Bondarev
HADOOP-9222	Cover package with org.apache.hadoop.io.lz4 unit tests	Major	.	Vadim Bondarev	Vadim Bondarev
HDFS-4129	Add utility methods to dump NameNode in memory tree for testing	Minor	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
MAPREDUCE-5333	Add test that verifies MRAM works correctly when sending requests with non-normalized capabilities	Major	mr-am	Alejandro Abdelnur	Wei Yan
MAPREDUCE-5015	Coverage fix for org.apache.hadoop.mapreduce.tools.CLI	Major	.	Aleksey Gorshkov	Aleksey Gorshkov
MAPREDUCE-5007	fix coverage org.apache.hadoop.mapreduce.v2.hs	Major	.	Aleksey Gorshkov	Aleksey Gorshkov
MAPREDUCE-4991	coverage for gridmix	Major	.	Aleksey Gorshkov	Aleksey Gorshkov
MAPREDUCE-4972	Coverage fixing for org.apache.hadoop.mapreduce.jobhistory	Major	.	Aleksey Gorshkov	Aleksey Gorshkov
MAPREDUCE-4875	coverage fixing for org.apache.hadoop.mapred	Major	test	Aleksey Gorshkov	Aleksey Gorshkov
YARN-866	Add test for class ResourceWeights	Major	.	Wei Yan	Wei Yan

SUB-TASKS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9720	Rename Client#uuid to Client#clientId	Major	.	Suresh Srinivas	Arpit Agarwal
HADOOP-9619	Mark stability of .proto files	Major	documentation	Sanjay Radia	Sanjay Radia
HADOOP-9418	Add symlink resolution support to DistributedFileSystem	Major	fs	Andrew Wang	Andrew Wang
HADOOP-9416	Add new symlink resolution methods in FileSystem and FileSystemLinkResolver	Major	fs	Andrew Wang	Andrew Wang
HADOOP-9414	Refactor out FSLinkResolver and relevant helper methods	Major	fs	Andrew Wang	Andrew Wang
HADOOP-9355	Abstract symlink tests to use either FileContext or FileSystem	Major	fs	Andrew Wang	Andrew Wang
HADOOP-9258	Add stricter tests to FileSystemContractTestBase	Major	test	Steve Loughran	Steve Loughran
HADOOP-9218	Document the Rpc-wrappers used internally	Major	ipc	Sanjay Radia	Sanjay Radia
HADOOP-9140	Cleanup rpc PB protos	Major	ipc	Sanjay Radia	Sanjay Radia
HADOOP-8470	Implementation of 4-layer subclass of NetworkTopology (NetworkTopologyWithNodeGroup)	Major	.	Junping Du	Junping Du
HADOOP-8469	Make NetworkTopology class pluggable	Major	.	Junping Du	Junping Du
HDFS-5025	Record ClientId and CallId in EditLog to enable rebuilding retry cache in case of HA failover	Major	ha, namenode	Jing Zhao	Jing Zhao
HDFS-4979	Implement retry cache on the namenode	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4974	Analyze and add annotations to Namenode protocol methods and enable retry	Major	ha, namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4908	Reduce snapshot inode memory usage	Major	namenode, snapshots	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4876	The javadoc of FileWithSnapshot is incorrect	Minor	snapshots	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4875	Add a test for testing snapshot file length	Minor	snapshots, test	Tsz Wo Nicholas Sze	Arpit Agarwal
HDFS-4842	Snapshot: identify the correct prior snapshot when deleting a snapshot under a renamed subtree	Major	snapshots	Jing Zhao	Jing Zhao
HDFS-4819	Update Snapshot doc for HDFS-4758	Minor	documentation	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4785	Concat operation does not remove concatenated files from InodeMap	Major	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-4784	NPE in FSDirectory.resolvePath()	Major	namenode	Brandon Li	Brandon Li
HDFS-4762	Provide HDFS based NFSv3 and Mountd implementation	Major	nfs	Brandon Li	Brandon Li
HDFS-4661	fix various bugs in short circuit read	Major	datanode, hdfs-client	Colin Patrick McCabe	Colin Patrick McCabe
HDFS-4602	TestBookKeeperHACheckpoints fails	Major	.	Suresh Srinivas	Uma Maheswara Rao G
HDFS-4542	Webhdfs doesn't support secure proxy users	Blocker	webhdfs	Daryn Sharp	Daryn Sharp
HDFS-4525	Provide an API for knowing that whether file is closed or not.	Major	namenode	Uma Maheswara Rao G	SreeHari
HDFS-4502	WebHdfsFileSystem handling of fileld breaks compatibility	Blocker	webhdfs	Alejandro Abdelnur	Brandon Li
HDFS-4485	HDFS-347: DN should chmod socket path a+w	Critical	datanode	Todd Lipcon	Colin Patrick McCabe
HDFS-4374	Display NameNode startup progress in UI	Major	namenode	Chris Nauroth	Chris Nauroth
HDFS-4373	Add HTTP API for querying NameNode startup progress	Major	namenode	Chris Nauroth	Chris Nauroth
HDFS-4372	Track NameNode startup progress	Major	namenode	Chris Nauroth	Chris Nauroth
HDFS-4346	Refactor INodeId and GenerationStamp	Minor	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-4340	Update addBlock() to inculde inode id as additional argument	Major	hdfs-client, namenode	Brandon Li	Brandon Li
HDFS-4339	Persist inode id in fsimage and editlog	Major	namenode	Brandon Li	Brandon Li
HDFS-4334	Add a unique id to each INode	Major	namenode	Brandon Li	Brandon Li
HDFS-3769	standby namenode become active fails because starting log segment fail on shared storage	Critical	ha	liaowenrui
MAPREDUCE-5299	Mapred API: void setTaskID(TaskAttemptID) is missing in TaskCompletionEvent	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5296	Mapred API: Function signature change in JobControl	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5280	Mapreduce API: ClusterMetrics incompatibility issues with MR1	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5275	Mapreduce API: TokenCache incompatibility issues with MR1	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5274	Mapreduce API: String toHex(byte[]) is removed from SecureShuffleUtils	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5273	Protected variables are removed from CombineFileRecordReader in both mapred and mapreduce	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5263	filecache.DistributedCache incompatiblity issues with MR1	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5245	A number of public static variables are removed from JobConf	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5244	Two functions changed their visibility in JobStatus	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5235	mapred.Counters incompatiblity issues with MR1	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5231	Constructor of DBInputFormat.DBRecordReader in mapred is changed	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5230	createFileSplit is removed from NLineInputFormat of mapred	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5229	TEMP_DIR_NAME is removed from of FileOutputCommitter of mapreduce	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5228	Enum Counter is removed from FileInputFormat and FileOutputFormat of both mapred and mapreduce	Major	.	Zhijie Shen	Mayank Bansal
MAPREDUCE-5222	Fix JobClient incompatibilities with MR1	Major	.	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-5220	Mapred API: TaskCompletionEvent incompatibility issues with MR1	Major	client	Sandy Ryza	Zhijie Shen
MAPREDUCE-5199	AppTokens file can/should be removed	Blocker	security	Vinod Kumar Vavilapalli	Daryn Sharp
MAPREDUCE-5184	Document MR Binary Compatibility vis-a-vis hadoop-1 and hadoop-2	Major	documentation	Arun C Murthy	Zhijie Shen
MAPREDUCE-5159	Aggregatewordcount and aggregatewordhist in hadoop-1 examples are not binary compatible with hadoop-2 mapred.lib.aggregate	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5157	Sort in hadoop-1 examples is not binary compatible with hadoop-2 mapred.lib	Major	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5086	MR app master deletes staging dir when sent a reboot command from the RM	Major	.	Jian He	Jian He
MAPREDUCE-4951	Container preemption interpreted as task failure	Major	applicationmaster, mr-am, mrv2	Sandy Ryza	Sandy Ryza
YARN-961	ContainerManagerImpl should enforce token on server. Today it is [TOKEN, SIMPLE]	Blocker	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-922	Change FileSystemRMStateStore to use directories	Major	resourcemanager	Jian He	Jian He
YARN-877	Allow for black-listing resources in FifoScheduler	Major	scheduler	Junping Du	Junping Du
YARN-873	YARNClient.getApplicationReport(unknownAppId) returns a null report	Major	.	Bikas Saha	Xuan Gong
YARN-850	Rename getClusterAvailableResources to getAvailableResources in AMRMClients	Major	.	Jian He	Jian He
YARN-846	Move pb Impl from yarn-api to yarn-common	Major	.	Jian He	Jian He
YARN-845	RM crash with NPE on NODE_UPDATE	Major	resourcemanager	Arpit Gupta	Mayank Bansal
YARN-827	Need to make Resource arithmetic methods accessible	Critical	.	Bikas Saha	Jian He
YARN-825	Fix yarn-common javadoc annotations	Blocker	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-820	NodeManager has invalid state transition after error in resource localization	Major	.	Bikas Saha	Mayank Bansal
YARN-814	Difficult to diagnose a failed container launch when error due to invalid environment variable	Major	.	Hitesh Shah	Jian He
YARN-805	Fix yarn-api javadoc annotations	Blocker	.	Jian He	Jian He
YARN-781	Expose LOGDIR that containers should use for logging	Major	.	Devaraj Das	Jian He
YARN-773	Move YarnRuntimeException from package api.yarn to api.yarn.exceptions	Major	.	Jian He	Jian He
YARN-759	Create Command enum in AllocateResponse	Major	.	Bikas Saha	Bikas Saha
YARN-750	Allow for black-listing resources in YARN API and Impl in CS	Major	.	Arun C Murthy	Arun C Murthy
YARN-739	NM startContainer should validate the NodeId	Major	.	Siddharth Seth	Omkar Vinit Joshi
YARN-737	Some Exceptions no longer need to be wrapped by YarnException and can be directly thrown out after YARN-142	Major	.	Jian He	Jian He
YARN-731	RPCUtil.unwrapAndThrowException should unwrap remote RuntimeExceptions	Major	.	Siddharth Seth	Zhijie Shen
YARN-727	ClientRMProtocol.getAllApplications should accept ApplicationType as a parameter	Blocker	.	Siddharth Seth	Xuan Gong
YARN-719	Move RMIdentifier from Container to ContainerTokenIdentifier	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-717	Copy BuilderUtil methods into token-related records	Major	.	Jian He	Jian He
YARN-714	AMRM protocol changes for sending NMToken list	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-711	Copy BuilderUtil methods into individual records	Major	.	Vinod Kumar Vavilapalli	Jian He
YARN-695	masterContainer and status are in ApplicationReportProto but not in ApplicationReport	Major	.	Zhijie Shen	Zhijie Shen
YARN-693	Sending NMToken to AM on allocate call	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-692	Creating NMToken master key on RM and sharing it with NM as a part of RM-NM heartbeat.	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-686	Flatten NodeReport	Major	api	Sandy Ryza	Sandy Ryza
YARN-663	Change ResourceTracker API and LocalizationProtocol API to throw YarnRemoteException and IOException	Major	.	Xuan Gong	Xuan Gong
YARN-660	Improve AMRMClient with matching requests	Major	.	Bikas Saha	Bikas Saha
YARN-651	Change ContainerManagerPBClientImpl and RMAdminProtocolPBClientImpl to throw IOException and YarnRemoteException	Major	.	Xuan Gong	Xuan Gong
YARN-638	Restore RMDelegationTokens after RM Restart	Major	resourcemanager	Jian He	Jian He
YARN-634	Make YarnRemoteException not backed by PB and introduce a SerializedException	Major	.	Siddharth Seth	Siddharth Seth
YARN-628	Fix YarnException unwrapping	Major	.	Siddharth Seth	Siddharth Seth
YARN-625	Move unwrapAndThrowException from YarnRemoteExceptionPBImpl to RPCUtil	Major	.	Siddharth Seth	Siddharth Seth
YARN-617	In unsercure mode, AM can fake resource requirements	Minor	.	Vinod Kumar Vavilapalli	Omkar Vinit Joshi
YARN-613	Create NM proxy per NM instead of per container	Major	.	Bikas Saha	Omkar Vinit Joshi
YARN-595	Refactor fair scheduler to use common Resources	Major	scheduler	Sandy Ryza	Sandy Ryza
YARN-591	RM recovery related records do not belong to the API	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-583	Application cache files should be localized under local-dir/usercache/userid/appcache/appid/filecache	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-582	Restore appToken and clientToken for app attempt after RM restart	Major	resourcemanager	Bikas Saha	Jian He
YARN-581	Test and verify that app delegation tokens are added to tokenRenewer after RM restart	Major	resourcemanager	Bikas Saha	Jian He
YARN-578	NodeManager should use SecureIOUtils for serving and aggregating logs	Major	nodemanager	Vinod Kumar Vavilapalli	Omkar Vinit Joshi
YARN-577	ApplicationReport does not provide progress value of application	Major	.	Hitesh Shah	Hitesh Shah
YARN-569	CapacityScheduler: support for preemption (using a capacity monitor)	Major	capacityscheduler	Carlo Curino	Carlo Curino
YARN-568	FairScheduler: support for work-preserving preemption	Major	scheduler	Carlo Curino	Carlo Curino
YARN-567	RM changes to support preemption for FairScheduler and CapacityScheduler	Major	resourcemanager	Carlo Curino	Carlo Curino
YARN-563	Add application type to ApplicationReport	Major	.	Thomas Weise	Mayank Bansal
YARN-562	NM should reject containers allocated by previous RM	Major	resourcemanager	Jian He	Jian He
YARN-549	YarnClient.submitApplication should wait for application to be accepted by the RM	Major	.	Zhijie Shen	Zhijie Shen
YARN-548	Add tests for YarnUncaughtExceptionHandler	Major	.	Vadim Bondarev	Vadim Bondarev
YARN-547	Race condition in Public / Private Localizer may result into resource getting downloaded again	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-539	LocalizedResources are leaked in memory in case resource localization fails	Major	.	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-534	AM max attempts is not checked when RM restart and try to recover attempts	Major	resourcemanager	Jian He	Jian He
YARN-523	Container localization failures aren't reported from NM to RM	Major	.	Vinod Kumar Vavilapalli	Jian He
YARN-521	Augment AM - RM client module to be able to request containers only at specific locations	Major	api	Sandy Ryza	Sandy Ryza
YARN-514	Delayed store operations should not result in RM unavailability for app submission	Major	resourcemanager	Bikas Saha	Zhijie Shen
YARN-513	Create common proxy client for communicating with RM	Major	resourcemanager	Bikas Saha	Jian He
YARN-486	Change startContainer NM API to accept Container as a parameter and make ContainerLaunchContext user land	Major	.	Bikas Saha	Xuan Gong
YARN-482	FS: Extend SchedulingMode to intermediate queues	Major	scheduler	Karthik Kambatla	Karthik Kambatla
YARN-475	Remove ApplicationConstants.AM_APP_ATTEMPT_ID_ENV as it is no longer set in an AM's environment	Major	.	Hitesh Shah	Hitesh Shah
YARN-469	Make scheduling mode in FS pluggable	Major	scheduler	Karthik Kambatla	Karthik Kambatla
YARN-468	coverage fix for org.apache.hadoop.yarn.server.webproxy.amfilter	Major	.	Aleksey Gorshkov	Aleksey Gorshkov
YARN-467	Jobs fail during resource localization when public distributed-cache hits unix directory limits	Major	nodemanager	Omkar Vinit Joshi	Omkar Vinit Joshi
YARN-450	Define value for * in the scheduling protocol	Major	.	Bikas Saha	Zhijie Shen
YARN-444	Move special container exit codes from YarnConfiguration to API	Major	api, applications/distributed-shell	Sandy Ryza	Sandy Ryza
YARN-441	Clean up unused collection methods in various APIs	Major	.	Siddharth Seth	Xuan Gong
YARN-422	Add NM client library	Major	.	Bikas Saha	Zhijie Shen
YARN-417	Create AMRMClient wrapper that provides asynchronous callbacks	Major	api, applications	Sandy Ryza	Sandy Ryza
YARN-398	Enhance CS to allow for white-list of resources	Major	.	Arun C Murthy	Arun C Murthy
YARN-392	Make it possible to specify hard locality constraints in resource requests	Major	resourcemanager	Bikas Saha	Sandy Ryza
YARN-378	ApplicationMaster retry times should be set by Client	Major	client, resourcemanager	xieguiming	Zhijie Shen
YARN-369	Handle ( or throw a proper error when receiving) status updates from application masters that have not registered	Major	resourcemanager	Hitesh Shah	Mayank Bansal
YARN-365	Each NM heartbeat should not generate an event for the Scheduler	Major	resourcemanager, scheduler	Siddharth Seth	Xuan Gong
YARN-309	Make RM provide heartbeat interval to NM	Major	resourcemanager	Xuan Gong	Xuan Gong
YARN-295	Resource Manager throws InvalidStateTransitonException: Invalid event: CONTAINER_FINISHED at ALLOCATED for RMAppAttemptImpl	Major	resourcemanager	Devaraj K	Mayank Bansal
YARN-200	yarn log does not output all needed information, and is in a binary format	Major	.	Robert Joseph Evans	Ravi Prakash
YARN-125	Make Yarn Client service shutdown operations robust	Minor	.	Steve Loughran	Steve Loughran
YARN-124	Make Yarn Node Manager services robust against shutdown	Minor	.	Steve Loughran	Steve Loughran
YARN-123	Make yarn Resource Manager services robust against shutdown	Minor	.	Steve Loughran	Steve Loughran
YARN-112	Race in localization can cause containers to fail	Major	nodemanager	Jason Lowe	Omkar Vinit Joshi
YARN-99	Jobs fail during resource localization when private distributed-cache hits unix directory limits	Major	nodemanager	Devaraj K	Omkar Vinit Joshi
YARN-62	AM should not be able to abuse container tokens for repetitive container launches	Major	.	Vinod Kumar Vavilapalli	Omkar Vinit Joshi

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-5286	startContainer call should use the ContainerToken instead of Container [YARN-684]	Major	.	Siddharth Seth	Vinod Kumar Vavilapalli
MAPREDUCE-5194	Heed interrupts during Fetcher shutdown	Minor	task	Chris Douglas	Chris Douglas
MAPREDUCE-5192	Separate TCE resolution from fetch	Minor	task	Chris Douglas	Chris Douglas
MAPREDUCE-3502	Review all Service.stop() operations and make sure that they work before a service is started	Major	mrv2	Steve Loughran	Steve Loughran
YARN-927	Change ContainerRequest to not have more than 1 container count and remove StoreContainerRequest	Major	.	Bikas Saha	Bikas Saha
YARN-708	Move RecordFactory classes to hadoop-yarn-api, miscellaneous fixes to the interfaces	Major	.	Siddharth Seth	Siddharth Seth
YARN-142	[Umbrella] Cleanup YARN APIs w.r.t exceptions	Blocker	.	Siddharth Seth