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Apache Hadoop Changelog

Release 2.0.2-alpha - 2012-10-09

INCOMPATIBLE CHANGES:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-4072	User set java.library.path seems to overwrite default creating problems native lib loading	Major	mrv2	Anupam Seth	Anupam Seth
MAPREDUCE-3812	Lower default allocation sizes, fix allocation configurations and document them	Major	mrv2, performance	Vinod Kumar Vavilapalli	Harsh J
HDFS-3318	Hftp hangs on transfers >2GB	Blocker	hdfs-client	Daryn Sharp	Daryn Sharp
HADOOP-8388	Remove unused BlockLocation serialization	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8368	Use CMake rather than autotools to build native code	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-3522	If NN is in safemode, it should throw SafeModeException when getBlockLocations has zero locations	Major	namenode	Brandon Li	Brandon Li
HADOOP-8458	Add management hook to AuthenticationHandler to enable delegation token operations support	Major	security	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4311	Capacity scheduler.xml does not accept decimal values for capacity and maximum-capacity settings	Major	capacity-sched, mrv2	Thomas Graves	Karthik Kambatla
HDFS-3446	HostsFileReader silently ignores bad includes/excludes	Major	namenode	Matthew Jacobs	Matthew Jacobs
HDFS-3675	libhdfs: follow documented return codes	Minor	libhdfs	Colin P. McCabe	Colin P. McCabe
HDFS-2617	Replaced Kerberized SSL for image transfer and fsck with SPNEGO-based solution	Major	security	Jakob Homan	Jakob Homan
HADOOP-8551	fs -mkdir creates parent directories without the -p option	Major	fs	Robert Joseph Evans	John George
HADOOP-8689	Make trash a server side configuration option	Major	fs	Eli Collins	Eli Collins
HADOOP-8710	Remove ability for users to easily run the trash emptier	Major	fs	Eli Collins	Eli Collins
HDFS-2727	libhdfs should get the default block size from the server	Minor	libhdfs	Sho Shimauchi	Colin P. McCabe
HDFS-2686	Remove DistributedUpgrade related code	Major	datanode, namenode	Todd Lipcon	Suresh Srinivas
MAPREDUCE-4629	Remove JobHistory.DEBUG_MODE	Major	.	Karthik Kambatla	Karthik Kambatla
HADOOP-8794	Modifiy bin/hadoop to point to HADOOP_YARN_HOME	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-2978	The NameNode should expose name dir statuses via JMX	Major	namenode	Aaron T. Myers	Aaron T. Myers
HADOOP-8135	Add ByteBufferReadable interface to FSDataInputStream	Major	fs	Henry Robinson	Henry Robinson
MAPREDUCE-3773	Add queue metrics with buckets for job run times	Major	jobtracker	Owen O'Malley	Owen O'Malley
HDFS-744	Support hsync in HDFS	Major	datanode, hdfs-client	Hairong Kuang	Lars Hofhansl
HDFS-3042	Automatic failover support for NN HA	Major	auto-failover, ha	Todd Lipcon	Todd Lipcon
HADOOP-8465	hadoop-auth should support ephemeral authentication	Major	security	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3535	Audit logging should log denied accesses	Major	namenode	Andy Isaacson	Andy Isaacson
MAPREDUCE-4355	Add RunningJob.getJobStatus()	Major	mrv1, mrv2	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-3451	Port Fair Scheduler to MR2	Major	mrv2, scheduler	NO NAME	NO NAME
MAPREDUCE-987	Exposing MiniDFS and MiniMR clusters as a single process command-line	Minor	build, test	Philip Zeyliger	Ahmed Radwan
MAPREDUCE-4417	add support for encrypted shuffle	Major	mrv2, security	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3113	httpfs does not support delegation tokens	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-8644	AuthenticatedURL should be able to use SSLFactory	Critical	security	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3637	Add support for encrypting the DataTransferProtocol	Major	datanode, hdfs-client, security	Aaron T. Myers	Aaron T. Myers
HADOOP-8581	add support for HTTPS to the web UIs	Major	security	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3150	Add option for clients to contact DNs via hostname	Major	datanode, hdfs-client	Eli Collins	Eli Collins
HDFS-2793	Add an admin command to trigger an edit log roll	Major	namenode	Aaron T. Myers	Todd Lipcon

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-2834	ByteBuffer-based read API for DFSInputStream	Major	hdfs-client, performance	Henry Robinson	Henry Robinson
HADOOP-8242	AbstractDelegationTokenIdentifier: add getter methods for owner and realuser	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8244	Improve comments on ByteBufferReadable.read	Major	.	Henry Robinson	Henry Robinson
HDFS-3110	libhdfs implementation of direct read API	Major	libhdfs, performance	Henry Robinson	Henry Robinson
MAPREDUCE-4059	The history server should have a separate pluggable storage/query interface	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4017	Add jobname to jobsummary log	Trivial	jobhistoryserver, jobtracker	Koji Noguchi	Thomas Graves
HADOOP-7510	Tokens should use original hostname provided instead of ip	Major	security	Daryn Sharp	Daryn Sharp
HADOOP-8286	Simplify getting a socket address from conf	Major	conf	Daryn Sharp	Daryn Sharp
MAPREDUCE-4151	RM scheduler web page should filter apps to those that are relevant to scheduling	Major	mrv2, webapps	Jason Lowe	Jason Lowe
HDFS-2652	Port token service changes from 205	Major	.	Daryn Sharp	Daryn Sharp
MAPREDUCE-4190	Improve web UI for task attempts userlog link	Major	mrv2, webapps	Thomas Graves	Thomas Graves
MAPREDUCE-4079	Allow MR AppMaster to limit ephemeral port range.	Blocker	mr-am, mrv2	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8227	Allow RPC to limit ephemeral port range.	Blocker	.	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8335	Improve Configuration's address handling	Major	util	Daryn Sharp	Daryn Sharp
MAPREDUCE-4210	Expose listener address for WebApp	Major	webapps	Daryn Sharp	Daryn Sharp
MAPREDUCE-4205	retrofit all JVM shutdown hooks to use ShutdownHookManager	Major	mrv2	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-3850	Avoid redundant calls for tokens in TokenCache	Major	security	Daryn Sharp	Daryn Sharp
HADOOP-8373	Port RPC.getServerAddress to 0.23	Major	ipc	Daryn Sharp	Daryn Sharp
HDFS-3390	DFSAdmin should print full stack traces of errors when DEBUG logging is enabled	Minor	hdfs-client	Aaron T. Myers	Aaron T. Myers
HDFS-3341	Change minimum RPC versions to 2.0.0-SNAPSHOT instead of 2.0.0	Minor	.	Todd Lipcon	Todd Lipcon
HADOOP-8340	SNAPSHOT build versions should compare as less than their eventual final release	Minor	util	Todd Lipcon	Todd Lipcon
MAPREDUCE-3659	Host-based token support	Major	security	Daryn Sharp	Daryn Sharp
HDFS-3230	Cleanup DatanodeID creation in the tests	Minor	test	Eli Collins	Eli Collins
HDFS-3401	Cleanup DatanodeDescriptor creation in the tests	Major	datanode, test	Eli Collins	Eli Collins
HDFS-3400	DNs should be able start with jsvc even if security is disabled	Major	datanode, scripts	Aaron T. Myers	Aaron T. Myers
HADOOP-8224	Don't hardcode hdfs.audit.logger in the scripts	Major	conf	Eli Collins	Tomohiko Kinebuchi
HDFS-3134	Harden edit log loader against malformed or malicious input	Major	namenode	Colin P. McCabe	Colin P. McCabe
HADOOP-8361	Avoid out-of-memory problems when deserializing strings	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-3404	Make putImage in GetImageServlet infer remote address to fetch from request	Major	.	Aaron T. Myers	Aaron T. Myers
HDFS-3335	check for edit log corruption at the end of the log	Major	.	Colin P. McCabe	Colin P. McCabe
HDFS-3416	Cleanup DatanodeID and DatanodeRegistration constructors used by testing	Minor	datanode	Eli Collins	Eli Collins
HDFS-3417	Rename BalancerDatanode#getName to getDisplayName to be consistent with Datanode	Minor	datanode	Eli Collins	Eli Collins
HDFS-3419	Cleanup LocatedBlock	Minor	.	Eli Collins	Eli Collins
HADOOP-8398	Cleanup BlockLocation	Minor	.	Eli Collins	Eli Collins
HDFS-3438	BootstrapStandby should not require a rollEdits on active node	Major	ha	Todd Lipcon	Todd Lipcon
HDFS-2885	Remove "federation" from the nameservice config options	Major	namenode	Eli Collins	Tsz Wo Nicholas Sze
HDFS-3394	Do not use generic in INodeFile.getLastBlock()	Minor	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
MAPREDUCE-4274	MapOutputBuffer should use native byte order for kvmeta	Minor	performance, task	Todd Lipcon	Todd Lipcon
HDFS-3454	Balancer unconditionally logs InterruptedException at INFO level on shutdown if security is enabled	Minor	balancer & mover	Eli Collins	Eli Collins
HADOOP-8367	Improve documentation of declaringClassProtocolName in rpc headers	Major	.	Sanjay Radia	Sanjay Radia
HDFS-1013	Miscellaneous improvements to HTML markup for web UIs	Minor	.	Todd Lipcon	Eugene Koontz
HADOOP-8323	Revert HADOOP-7940 and improve javadocs and test for Text.clear()	Critical	io	Harsh J	Harsh J
HDFS-2391	Newly set BalancerBandwidth value is not displayed anywhere	Major	balancer & mover	Rajit Saha	Harsh J
HADOOP-8358	Config-related WARN for dfs.web.ugi can be avoided.	Trivial	conf	Harsh J	Harsh J
MAPREDUCE-4146	Support limits on task status string length and number of block locations in branch-2	Major	.	Tom White	Ahmed Radwan
MAPREDUCE-4301	Dedupe some strings in MRAM for memory savings	Major	applicationmaster	Robert Joseph Evans	Robert Joseph Evans
HDFS-3040	TestMulitipleNNDataBlockScanner is misspelled	Trivial	test	Aaron T. Myers	madhukara phatak
MAPREDUCE-3842	stop webpages from automatic refreshing	Critical	mrv2, webapps	Alejandro Abdelnur	Thomas Graves
HDFS-3514	Add missing TestParallelLocalRead	Major	test	Henry Robinson	Henry Robinson
MAPREDUCE-3871	Allow symlinking in LocalJobRunner DistributedCache	Major	distributed-cache	Tom White	Tom White
MAPREDUCE-3921	MR AM should act on the nodes liveliness information when nodes go up/down/unhealthy	Major	mr-am, mrv2	Vinod Kumar Vavilapalli	Bikas Saha
HDFS-3520	Add transfer rate logging to TransferFsImage	Minor	namenode	Eli Collins	Eli Collins
HDFS-3504	Configurable retry in DFSClient	Major	hdfs-client	Siddharth Seth	Tsz Wo Nicholas Sze
HDFS-3372	offlineEditsViewer should be able to read a binary edits file with recovery mode	Minor	tools	Colin P. McCabe	Colin P. McCabe
HADOOP-8524	Allow users to get source of a Configuration parameter	Trivial	conf	Harsh J	Harsh J
HDFS-3516	Check content-type in WebHdfsFileSystem	Major	hdfs-client, webhdfs	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-3481	Refactor HttpFS handling of JAX-RS query string parameters	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3002	TestNameNodeMetrics need not wait for metrics update with new metrics framework	Trivial	test	Suresh Srinivas	Suresh Srinivas
HADOOP-8535	Cut hadoop build times in half (upgrade maven-compiler-plugin to 2.5.1)	Major	build	Jonathan Eagles	Jonathan Eagles
HDFS-3475	Make the replication and invalidation rates configurable	Trivial	.	Harsh J	Harsh J
HADOOP-6802	Remove FS_CLIENT_BUFFER_DIR_KEY = "fs.client.buffer.dir" from CommonConfigurationKeys.java (not used, deprecated)	Major	conf, fs	Erik Steffl	Sho Shimauchi
HADOOP-3450	Add tests to Local Directory Allocator for asserting their URI-returning capability	Minor	fs	Ari Rabkin	Sho Shimauchi
HADOOP-8533	Remove Parallel Call in IPC	Major	ipc	Suresh Srinivas	Brandon Li
HADOOP-8463	hadoop.security.auth_to_local needs a key definition and doc	Major	security	Eli Collins	madhukara phatak
HDFS-3343	Improve metrics for DN read latency	Major	datanode	Todd Lipcon	Andrew Wang
HDFS-3170	Add more useful metrics for write latency	Major	datanode	Todd Lipcon	Matthew Jacobs
HDFS-3604	Add dfs.webhdfs.enabled to hdfs-default.xml	Minor	.	Eli Collins	Eli Collins
HDFS-2988	Improve error message when storage directory lock fails	Minor	namenode	Todd Lipcon	Miomir Boljanovic
MAPREDUCE-3907	Document entries mapred-default.xml for the jobhistory server.	Minor	documentation	Eugene Koontz	Eugene Koontz
MAPREDUCE-3906	Fix inconsistency in documentation regarding mapreduce.jobhistory.principal	Trivial	documentation	Eugene Koontz	Eugene Koontz
HADOOP-8525	Provide Improved Traceability for Configuration	Trivial	.	Robert Joseph Evans	Robert Joseph Evans
HDFS-3613	GSet prints some INFO level values, which aren't really very useful to all	Trivial	namenode	Harsh J	Andrew Wang
HDFS-3582	Hook daemon process exit for testing	Minor	test	Eli Collins	Eli Collins
HADOOP-8541	Better high-percentile latency metrics	Major	metrics	Andrew Wang	Andrew Wang
HDFS-3641	Move server Util time methods to common and use now instead of System#currentTimeMillis	Minor	.	Eli Collins	Eli Collins
HDFS-3612	Single namenode image directory config warning can be improved	Trivial	namenode	Harsh J	Andy Isaacson
HDFS-3568	fuse_dfs: add support for security	Major	.	Colin P. McCabe	Colin P. McCabe
HDFS-799	libhdfs must call DetachCurrentThread when a thread is destroyed	Major	.	Christian Kunz	Colin P. McCabe
HDFS-3610	fuse_dfs: Provide a way to use the default (configured) NN URI	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8362	Improve exception message when Configuration.set() is called with a null key or value	Trivial	conf	Todd Lipcon	madhukara phatak
HDFS-3663	MiniDFSCluster should capture the code path that led to the first ExitException	Major	test	Eli Collins	Eli Collins
YARN-420	Enable the RM to work with AM's that are not managed by it	Major	applications/unmanaged-AM-launcher	Bikas Saha	Bikas Saha
HDFS-3659	Add missing @Override to methods across the hadoop-hdfs project	Minor	documentation	Brandon Li	Brandon Li
HADOOP-8531	SequenceFile Writer can throw out a better error if a serializer or deserializer isn't available	Trivial	io	Harsh J	madhukara phatak
HDFS-3537	Move libhdfs and fuse-dfs source to native subdirectories	Minor	fuse-dfs, libhdfs	Colin P. McCabe	Colin P. McCabe
HDFS-3666	Plumb more exception messages to terminate	Minor	.	Eli Collins	Eli Collins
MAPREDUCE-4283	Display tail of aggregated logs by default	Major	jobhistoryserver, mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-4422	YARN_APPLICATION_CLASSPATH needs a documented default value in YarnConfiguration	Major	nodemanager	Arun C Murthy	Ahmed Radwan
MAPREDUCE-4157	ResourceManager should not kill apps that are well behaved	Major	mrv2	Jason Lowe	Jason Lowe
HDFS-3583	Convert remaining tests to Junit4	Major	test	Eli Collins	Andrew Wang
HADOOP-8609	IPC server logs a useless message when shutting down socket	Major	.	Todd Lipcon	Jon Zuanich
HDFS-3711	Manually convert remaining tests to JUnit4	Major	.	Andrew Wang	Andrew Wang
YARN-419	Add client side for Unmanaged-AMs	Major	applications/unmanaged-AM-launcher	Bikas Saha	Bikas Saha
HADOOP-8623	hadoop jar command should respect HADOOP_OPTS	Minor	scripts	Steven Willis	Steven Willis
HDFS-3650	Use MutableQuantiles to provide latency histograms for various operations	Major	.	Andrew Wang	Andrew Wang
HADOOP-8635	Cannot cancel paths registered deleteOnExit	Critical	fs	Daryn Sharp	Daryn Sharp
MAPREDUCE-4375	Show Configuration Tracability in MR UI	Major	applicationmaster	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8620	Add -Drequire.fuse and -Drequire.snappy	Minor	build	Colin P. McCabe	Colin P. McCabe
HDFS-3513	HttpFS should cache filesystems	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3697	Enable fadvise readahead by default	Minor	datanode, performance	Todd Lipcon	Todd Lipcon
MAPREDUCE-3289	Make use of fadvise in the NM's shuffle handler	Major	mrv2, nodemanager, performance	Todd Lipcon	Todd Lipcon
HDFS-3276	initializeSharedEdits should have a -nonInteractive flag	Minor	ha, namenode	Vinithra Varadharajan	Todd Lipcon
HADOOP-8687	Upgrade log4j to 1.2.17	Minor	.	Eli Collins	Eli Collins
HDFS-3765	Namenode INITIALIZESHAREDEDITS should be able to initialize all shared storages	Major	ha	Vinayakumar B	Vinayakumar B
HDFS-3723	All commands should support meaningful --help	Major	scripts, tools	E. Sammer	Jing Zhao
HDFS-3802	StartupOption.name in HdfsServerConstants should be final	Trivial	.	Jing Zhao	Jing Zhao
HDFS-3796	Speed up edit log tests by avoiding fsync()	Minor	test	Todd Lipcon	Todd Lipcon
HADOOP-8278	Make sure components declare correct set of dependencies	Major	build	Tom White	Tom White
MAPREDUCE-4511	Add IFile readahead	Major	mrv1, mrv2, performance	Ahmed Radwan	Ahmed Radwan
HADOOP-8700	Move the checksum type constants to an enum	Minor	util	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-2421	Improve the concurrency of SerialNumberMap in NameNode	Major	namenode	Hairong Kuang	Jing Zhao
HDFS-3672	Expose disk-location information for blocks to enable better scheduling	Major	.	Andrew Wang	Andrew Wang
HADOOP-8240	Allow users to specify a checksum type on create()	Major	fs	Kihwal Lee	Kihwal Lee
HADOOP-8239	Extend MD5MD5CRC32FileChecksum to show the actual checksum type being used	Major	fs	Kihwal Lee	Kihwal Lee
HDFS-3819	Should check whether invalidate work percentage default value is not greater than 1.0f	Minor	.	Jing Zhao	Jing Zhao
HADOOP-8075	Lower native-hadoop library log from info to debug	Major	native	Eli Collins	Hızır Sefa İrken
MAPREDUCE-4408	allow jobs to set a JAR that is in the distributed cached	Major	mrv1, mrv2	Alejandro Abdelnur	Robert Kanter
HDFS-3844	Add @Override where necessary and remove unnecessary {@inheritdoc} and imports	Trivial	.	Jing Zhao	Jing Zhao
HADOOP-8748	Move dfsclient retry to a util class	Minor	io	Arun C Murthy	Arun C Murthy
MAPREDUCE-4614	Simplify debugging a job's tokens	Major	client, task	Daryn Sharp	Daryn Sharp
HDFS-3871	Change NameNodeProxies to use HADOOP-8748	Minor	hdfs-client	Arun C Murthy	Arun C Murthy
MAPREDUCE-2786	TestDFSIO should also test compression reading/writing from command-line.	Minor	benchmarks	Plamen Jeliazkov	Plamen Jeliazkov
YARN-10	dist-shell shouldn't have a (test) dependency on hadoop-mapreduce-client-core	Major	.	Arun C Murthy	Hitesh Shah
HDFS-3866	HttpFS POM should have property where to download tomcat from	Minor	build	Ryan Hennig	Plamen Jeliazkov
HDFS-3887	Remove redundant chooseTarget methods in BlockPlacementPolicy.java	Trivial	namenode	Jing Zhao	Jing Zhao
HADOOP-8624	ProtobufRpcEngine should log all RPCs if TRACE logging is enabled	Minor	ipc	Todd Lipcon	Todd Lipcon
HADOOP-8754	Deprecate all the RPC.getServer() variants	Minor	ipc	Brandon Li	Brandon Li
MAPREDUCE-4638	MR AppMaster shouldn't rely on YARN_APPLICATION_CLASSPATH providing MR jars	Major	.	Arun C Murthy	Arun C Murthy
YARN-80	Support delay scheduling for node locality in MR2's capacity scheduler	Major	capacityscheduler	Todd Lipcon	Arun C Murthy
YARN-9	Rename YARN_HOME to HADOOP_YARN_HOME	Major	.	Arun C Murthy	Vinod Kumar Vavilapalli
YARN-137	Change the default scheduler to the CapacityScheduler	Major	scheduler	Siddharth Seth	Siddharth Seth
HDFS-3607	log a message when fuse_dfs is not built	Minor	fuse-dfs	Colin P. McCabe	Colin P. McCabe
HDFS-3227	Mavenise libhdfs tests	Major	libhdfs	Henry Robinson
HDFS-3907	Allow multiple users for local block readers	Major	datanode	Eli Collins	Eli Collins

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-7703	WebAppContext should also be stopped and cleared	Major	.	Devaraj K	Devaraj K
HDFS-2285	BackupNode should reject requests trying to modify namespace	Major	namenode	Konstantin Shvachko	Konstantin Shvachko
HDFS-2759	Pre-allocate HDFS edit log files after writing version number	Major	ha, namenode	Aaron T. Myers	Aaron T. Myers
HADOOP-8104	Inconsistent Jackson versions	Major	.	Colin P. McCabe	Alejandro Abdelnur
MAPREDUCE-3728	ShuffleHandler can't access results when configured in a secure mode	Critical	mrv2, nodemanager	Roman Shaposhnik	Ding Yuan
HDFS-3037	TestMulitipleNNDataBlockScanner#testBlockScannerAfterRestart is racy	Minor	test	Aaron T. Myers	Aaron T. Myers
HDFS-2966	TestNameNodeMetrics tests can fail under load	Minor	test	Steve Loughran	Steve Loughran
MAPREDUCE-3348	mapred job -status fails to give info even if the job is present in History	Major	mrv2	Devaraj K	Devaraj K
HADOOP-8167	Configuration deprecation logic breaks backwards compatibility	Blocker	conf	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3067	NPE in DFSInputStream.readBuffer if read is repeated on corrupted block	Major	hdfs-client	Henry Robinson	Henry Robinson
MAPREDUCE-4010	TestWritableJobConf fails on trunk	Critical	mrv2	Jason Lowe	Alejandro Abdelnur
HADOOP-8197	Configuration logs WARNs on every use of a deprecated key	Critical	conf	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-3992	Reduce fetcher doesn't verify HTTP status code of response	Major	mrv1	Todd Lipcon	Todd Lipcon
MAPREDUCE-4082	hadoop-mapreduce-client-app's mrapp-generated-classpath file should not be in the module JAR	Critical	build	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4091	tools testcases failing because of MAPREDUCE-4082	Critical	build, test	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4092	commitJob Exception does not fail job (regression in 0.23 vs 0.20)	Blocker	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-4089	Hung Tasks never time out.	Blocker	mrv2	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4024	RM webservices can't query on finalStatus	Major	mrv2	Thomas Graves	Thomas Graves
MAPREDUCE-4060	Multiple SLF4J binding warning	Major	build	Jason Lowe	Jason Lowe
MAPREDUCE-4012	Hadoop Job setup error leaves no useful info to users (when LinuxTaskController is used)	Minor	.	Koji Noguchi	Thomas Graves
MAPREDUCE-4062	AM Launcher thread can hang forever	Major	mrv2	Thomas Graves	Thomas Graves
MAPREDUCE-3988	mapreduce.job.local.dir doesn't point to a single directory on a node.	Major	mrv2	Vinod Kumar Vavilapalli	Eric Payne
HDFS-3166	Hftp connections do not have a timeout	Critical	hdfs-client	Daryn Sharp	Daryn Sharp
MAPREDUCE-3999	Tracking link gives an error if the AppMaster hasn't started yet	Major	mrv2, webapps	Ravi Prakash	Ravi Prakash
HDFS-3176	JsonUtil should not parse the MD5MD5CRC32FileChecksum bytes on its own.	Major	hdfs-client	Kihwal Lee	Kihwal Lee
MAPREDUCE-4020	Web services returns incorrect JSON for deep queue tree	Major	mrv2, webapps	Jason Lowe	Anupam Seth
MAPREDUCE-3672	Killed maps shouldn't be counted towards JobCounter.NUM_FAILED_MAPS	Major	mr-am, mrv2	Vinod Kumar Vavilapalli	Anupam Seth
MAPREDUCE-3682	Tracker URL says AM tasks run on localhost	Major	mrv2	David Capwell	Ravi Prakash
MAPREDUCE-3082	archive command take wrong path for input file with current directory	Major	harchive	Rajit Saha	John George
MAPREDUCE-3650	testGetTokensForHftpFS() fails	Blocker	mrv2	Thomas Graves	Ravi Prakash
HADOOP-8088	User-group mapping cache incorrectly does negative caching on transient failures	Major	security	Kihwal Lee	Kihwal Lee
HADOOP-8179	risk of NPE in CopyCommands processArguments()	Minor	fs	Steve Loughran	Daryn Sharp
MAPREDUCE-4097	tools testcases fail because missing mrapp-generated-classpath file in classpath	Major	build	Alejandro Abdelnur	Roman Shaposhnik
HADOOP-8180	Remove hsqldb since its not needed from pom.xml	Major	.	Ravi Prakash	Ravi Prakash
HADOOP-6963	Fix FileUtil.getDU. It should not include the size of the directory or follow symbolic links	Critical	fs	Owen O'Malley	Ravi Prakash
MAPREDUCE-3621	TestDBJob and TestDataDrivenDBInputFormat ant tests fail	Major	mrv2	Thomas Graves	Ravi Prakash
MAPREDUCE-4073	CS assigns multiple off-switch containers when using multi-level-queues	Critical	mrv2, scheduler	Siddharth Seth	Siddharth Seth
HDFS-3136	Multiple SLF4J binding warning	Major	build	Jason Lowe	Jason Lowe
HADOOP-8014	ViewFileSystem does not correctly implement getDefaultBlockSize, getDefaultReplication, getContentSummary	Major	fs	Daryn Sharp	John George
MAPREDUCE-4117	mapred job -status throws NullPointerException	Critical	client, mrv2	Devaraj K	Devaraj K
HDFS-3235	MiniDFSClusterManager doesn't correctly support -format option	Minor	.	Henry Robinson	Henry Robinson
HDFS-3243	TestParallelRead timing out on jenkins	Major	hdfs-client, test	Todd Lipcon	Henry Robinson
MAPREDUCE-4040	History links should use hostname rather than IP address.	Minor	jobhistoryserver, mrv2	Bhallamudi Venkata Siva Kamesh	Bhallamudi Venkata Siva Kamesh
MAPREDUCE-4099	ApplicationMaster may fail to remove staging directory	Critical	mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-3932	MR tasks failing and crashing the AM when available-resources/headRoom becomes zero	Critical	mr-am, mrv2	Vinod Kumar Vavilapalli	Robert Joseph Evans
MAPREDUCE-4140	mapreduce classes incorrectly importing "clover.org.apache.*" classes	Major	client, mrv2	Patrick Hunt	Patrick Hunt
HADOOP-8144	pseudoSortByDistance in NetworkTopology doesn't work properly if no local node and first node is local rack node	Minor	io	Junping Du	Junping Du
MAPREDUCE-4050	Invalid node link	Major	mrv2	Bhallamudi Venkata Siva Kamesh	Bhallamudi Venkata Siva Kamesh
MAPREDUCE-4128	AM Recovery expects all attempts of a completed task to also be completed.	Major	mrv2	Bikas Saha	Bikas Saha
HADOOP-8005	Multiple SLF4J binding message in .out file for all daemons	Major	scripts	Joe Crobak	Jason Lowe
MAPREDUCE-4144	ResourceManager NPE while handling NODE_UPDATE	Critical	mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-4156	ant build fails compiling JobInProgress	Major	build	Thomas Graves	Thomas Graves
MAPREDUCE-4160	some mrv1 ant tests fail with timeout - due to 4156	Major	test	Thomas Graves	Thomas Graves
MAPREDUCE-4139	Potential ResourceManager deadlock when SchedulerEventDispatcher is stopped	Major	mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-4074	Client continuously retries to RM When RM goes down before launching Application Master	Major	.	Devaraj K	xieguiming
HADOOP-8288	Remove references of mapred.child.ulimit etc. since they are not being used any more	Major	.	Ravi Prakash	Ravi Prakash
MAPREDUCE-4159	Job is running in Uber mode after setting "mapreduce.job.ubertask.maxreduces" to zero	Major	mrv2	Nishan Shetty	Devaraj K
MAPREDUCE-4165	Committing is misspelled as commiting in task logs	Trivial	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-4129	Lots of unneeded counters log messages	Major	mrv2	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-3947	yarn.app.mapreduce.am.resource.mb not documented	Minor	.	Todd Lipcon	Devaraj K
HDFS-3308	hftp/webhdfs can't get tokens if authority has no port	Critical	webhdfs	Daryn Sharp	Daryn Sharp
MAPREDUCE-4133	MR over viewfs is broken	Major	.	John George	John George
HDFS-3312	Hftp selects wrong token service	Blocker	hdfs-client	Daryn Sharp	Daryn Sharp
HDFS-3321	Error message for insufficient data nodes to come out of safemode is wrong.	Major	.	Ravi Prakash	Ravi Prakash
MAPREDUCE-4194	ConcurrentModificationError in DirectoryCollection	Major	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-4169	Container Logs appear in unsorted order	Minor	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-4189	TestContainerManagerSecurity is failing	Critical	mrv2	Devaraj K	Devaraj K
HADOOP-8305	distcp over viewfs is broken	Major	viewfs	John George	John George
HDFS-3334	ByteRangeInputStream leaks streams	Major	hdfs-client	Daryn Sharp	Daryn Sharp
HDFS-3331	setBalancerBandwidth do not checkSuperuserPrivilege	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
MAPREDUCE-4209	junit dependency in hadoop-mapreduce-client is missing scope test	Major	build	Radim Kolar
MAPREDUCE-4206	Sorting by Last Health-Update on the RM nodes page sorts does not work correctly	Minor	mrv2	Jonathan Eagles	Jonathan Eagles
HADOOP-8334	HttpServer sometimes returns incorrect port	Major	.	Daryn Sharp	Daryn Sharp
HADOOP-8325	Add a ShutdownHookManager to be used by different components instead of the JVM shutdownhook	Critical	fs	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-8330	TestSequenceFile.testCreateUsesFsArg() is broken	Minor	test	John George	John George
HDFS-3275	Format command overwrites contents of non-empty shared edits dir if name dirs are empty without any prompting	Major	ha, namenode	Vinithra Varadharajan	amith
MAPREDUCE-4211	Error conditions (missing appid, appid not found) are masked in the RM app page	Minor	mrv2	Jonathan Eagles	Jonathan Eagles
HADOOP-8317	Update maven-assembly-plugin to 2.3 - fix build on FreeBSD	Major	build	Radim Kolar
HADOOP-8172	Configuration no longer sets all keys in a deprecated key list.	Critical	conf	Robert Joseph Evans	Anupam Seth
HADOOP-8342	HDFS command fails with exception following merge of HADOOP-8325	Major	fs	Randy Clayton	Alejandro Abdelnur
HDFS-3359	DFSClient.close should close cached sockets	Critical	hdfs-client	Todd Lipcon	Todd Lipcon
MAPREDUCE-4048	NullPointerException exception while accessing the Application Master UI	Major	mrv2	Devaraj K	Devaraj K
HADOOP-8327	distcpv2 and distcpv1 jars should not coexist	Major	.	Dave Thompson	Dave Thompson
HADOOP-8328	Duplicate FileSystem Statistics object for 'file' scheme	Major	fs	Tom White	Tom White
MAPREDUCE-4220	RM apps page starttime/endtime sorts are incorrect	Minor	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-4226	ConcurrentModificationException in FileSystemCounterGroup	Major	mrv2	Tom White	Tom White
HADOOP-8341	Fix or filter findbugs issues in hadoop-tools	Major	.	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4215	RM app page shows 500 error on appid parse error	Major	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-4237	TestNodeStatusUpdater can fail if localhost has a domain associated with it	Major	.	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8372	normalizeHostName() in NetUtils is not working properly in resolving a hostname start with numeric character	Major	io, util	Junping Du	Junping Du
HDFS-3385	ClassCastException when trying to append a file	Major	namenode	Brahma Reddy Battula	Tsz Wo Nicholas Sze
MAPREDUCE-4148	MapReduce should not have a compile-time dependency on HDFS	Major	mrv2	Tom White	Tom White
HADOOP-8316	Audit logging should be disabled by default	Major	conf	Eli Collins	Eli Collins
MAPREDUCE-4233	NPE can happen in RMNMNodeInfo.	Critical	.	Robert Joseph Evans	Robert Joseph Evans
HDFS-3414	Balancer does not find NameNode if rpc-address or servicerpc-address are not set in client configs	Minor	balancer & mover	Aaron T. Myers	Aaron T. Myers
HDFS-3031	HA: Fix complete() and getAdditionalBlock() RPCs to be idempotent.	Major	ha	Stephen Chu	Todd Lipcon
MAPREDUCE-4238	mavenize data_join	Critical	mrv2	Thomas Graves	Thomas Graves
HADOOP-8393	hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException MRAppMaster	Major	scripts	Patrick Hunt	Patrick Hunt
MAPREDUCE-4250	hadoop-config.sh missing variable exports, causes Yarn jobs to fail with ClassNotFoundException MRAppMaster	Major	nodemanager	Patrick Hunt	Patrick Hunt
MAPREDUCE-4102	job counters not available in Jobhistory webui for killed jobs	Major	webapps	Thomas Graves	Bhallamudi Venkata Siva Kamesh
HDFS-3413	TestFailureToReadEdits timing out	Critical	ha, test	Todd Lipcon	Aaron T. Myers
HADOOP-8400	All commands warn "Kerberos krb5 configuration not found" when security is not enabled	Major	security	Eli Collins	Alejandro Abdelnur
HDFS-3422	TestStandbyIsHot timeouts too aggressive	Minor	test	Todd Lipcon	Todd Lipcon
HADOOP-8406	CompressionCodecFactory.CODEC_PROVIDERS iteration is thread-unsafe	Major	io	Todd Lipcon	Todd Lipcon
MAPREDUCE-4264	Got ClassCastException when using mapreduce.history.server.delegationtoken.required=true	Blocker	mrv2	Thomas Graves	Thomas Graves
HDFS-3433	GetImageServlet should allow administrative requestors when security is enabled	Major	namenode	Aaron T. Myers	Aaron T. Myers
MAPREDUCE-3543	Mavenize Gridmix.	Critical	mrv2	Mahadev konar	Thomas Graves
HDFS-1153	dfsnodelist.jsp should handle invalid input parameters	Minor	datanode	Ravi Phulari	Ravi Phulari
HDFS-2800	HA: TestStandbyCheckpoints.testCheckpointCancellation is racy	Major	ha, test	Aaron T. Myers	Todd Lipcon
HDFS-3391	TestPipelinesFailover#testLeaseRecoveryAfterFailover is failing	Critical	.	Arun C Murthy	Todd Lipcon
HADOOP-8287	etc/hadoop is missing hadoop-env.sh	Major	conf	Eli Collins	Eli Collins
MAPREDUCE-4197	Include the hsqldb jar in the hadoop-mapreduce tar file	Major	.	Ravi Prakash	Ravi Prakash
HDFS-3440	should more effectively limit stream memory consumption when reading corrupt edit logs	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-3444	hdfs groups command doesn't work with security enabled	Major	hdfs-client	Aaron T. Myers	Aaron T. Myers
HADOOP-8329	Build fails with Java 7	Major	build	Kumar Ravi	Eli Collins
MAPREDUCE-4002	MultiFileWordCount job fails if the input path is not from default file system	Major	examples	Bhallamudi Venkata Siva Kamesh	Bhallamudi Venkata Siva Kamesh
MAPREDUCE-4269	documentation: Gridmix has javadoc warnings in StressJobFactory	Major	mrv2	Jonathan Eagles	Jonathan Eagles
MAPREDUCE-3870	Invalid App Metrics	Major	mrv2	Bhallamudi Venkata Siva Kamesh	Bhallamudi Venkata Siva Kamesh
HADOOP-8408	MR doesn't work with a non-default ViewFS mount table and security enabled	Major	viewfs	Aaron T. Myers	Aaron T. Myers
HDFS-3415	During NameNode starting up, it may pick wrong storage directory inspector when the layout versions of the storage directories are different	Major	namenode	Brahma Reddy Battula	Brandon Li
HDFS-3436	adding new datanode to existing pipeline fails in case of Append/Recovery	Major	datanode	Brahma Reddy Battula	Vinayakumar B
MAPREDUCE-4262	NM gives wrong log message saying "Connected to ResourceManager" before trying to connect	Minor	mrv2, nodemanager	Devaraj K	Devaraj K
HDFS-2982	Startup performance suffers when there are many edit log segments	Critical	namenode	Todd Lipcon	Colin P. McCabe
MAPREDUCE-4276	Allow setting yarn.nodemanager.delete.debug-delay-sec property to "-1" for easier container debugging.	Major	mrv2	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-4224	TestFifoScheduler throws org.apache.hadoop.metrics2.MetricsException	Major	mrv2, scheduler, test	Devaraj K	Devaraj K
HDFS-3460	HttpFS proxyuser validation with Kerberos ON uses full principal name	Critical	.	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-8422	Deprecate FileSystem#getDefault* and getServerDefault methods that don't take a Path argument	Minor	fs	Eli Collins	Eli Collins
HDFS-3368	Missing blocks due to bad DataNodes coming up and down.	Major	namenode	Konstantin Shvachko	Konstantin Shvachko
HADOOP-8268	A few pom.xml across Hadoop project may fail XML validation	Major	build	Radim Kolar	Radim Kolar
HADOOP-8444	Fix the tests FSMainOperationsBaseTest.java and F ileContextMainOperationsBaseTest.java to avoid potential test failure	Major	fs, test	Mariappan Asokan	madhukara phatak
MAPREDUCE-3493	Add the default mapreduce.shuffle.port property to mapred-default.xml	Minor	mrv2	Ahmed Radwan
HDFS-3398	Client will not retry when primaryDN is down once it's just got pipeline	Minor	hdfs-client	Brahma Reddy Battula	amith
MAPREDUCE-4152	map task left hanging after AM dies trying to connect to RM	Major	mrv2	Thomas Graves	Thomas Graves
HADOOP-8452	DN logs backtrace when running under jsvc and /jmx is loaded	Minor	.	Andy Isaacson	Andy Isaacson
MAPREDUCE-4297	Usersmap file in gridmix should not fail on empty lines	Major	contrib/gridmix	Ravi Prakash	Ravi Prakash
HDFS-3484	hdfs fsck doesn't work if NN HTTP address is set to 0.0.0.0 even if NN RPC address is configured	Minor	hdfs-client	Aaron T. Myers	Aaron T. Myers
HDFS-3486	offlineimageviewer can't read fsimage files that contain persistent delegation tokens	Minor	security, tools	Colin P. McCabe	Colin P. McCabe
HDFS-3487	offlineimageviewer should give byte offset information when it encounters an exception	Minor	tools	Colin P. McCabe	Colin P. McCabe
HADOOP-8460	Document proper setting of HADOOP_PID_DIR and HADOOP_SECURE_DN_PID_DIR	Major	documentation	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8466	hadoop-client POM incorrectly excludes avro	Major	build	Bruno Mahé	Bruno Mahé
MAPREDUCE-4302	NM goes down if error encountered during log aggregation	Critical	nodemanager	Daryn Sharp	Daryn Sharp
HDFS-3442	Incorrect count for Missing Replicas in FSCK report	Minor	.	suja s	Andrew Wang
MAPREDUCE-4307	TeraInputFormat calls FileSystem.getDefaultBlockSize() without a Path - Failure when using ViewFileSystem	Major	mrv2	Ahmed Radwan	Ahmed Radwan
HDFS-2025	Go Back to File View link is not working in tail.jsp	Minor	datanode	sravankorumilli	Ashish Singhi
HADOOP-8450	Remove src/test/system	Trivial	test	Colin P. McCabe	Eli Collins
MAPREDUCE-3350	Per-app RM page should have the list of application-attempts like on the app JHS page	Critical	mrv2, webapps	Vinod Kumar Vavilapalli	Jonathan Eagles
HDFS-3501	Checkpointing with security enabled will stop working after ticket lifetime expires	Major	ha, namenode	Aaron T. Myers	Aaron T. Myers
HADOOP-8481	update BUILDING.txt to talk about cmake rather than autotools	Trivial	documentation	Colin P. McCabe	Colin P. McCabe
HDFS-3266	DFSTestUtil#waitCorruptReplicas doesn't sleep between checks	Minor	.	Aaron T. Myers	madhukara phatak
MAPREDUCE-4313	TestTokenCache doesn't compile due TokenCache.getDelegationToken compilation error	Blocker	build, test	Eli Collins	Robert Joseph Evans
MAPREDUCE-3873	Nodemanager is not getting decommisioned if the absolute ip is given in exclude file.	Minor	mrv2, nodemanager	Nishan Shetty	xieguiming
HDFS-3505	DirectoryScanner does not join all threads in shutdown	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8485	Don't hardcode "Apache Hadoop 0.23" in the docs	Minor	documentation	Eli Collins	Eli Collins
HDFS-3485	DataTransferThrottler will over-throttle when currentTimeMillis jumps	Minor	.	Andy Isaacson	Andy Isaacson
HADOOP-8488	test-patch.sh gives +1 even if the native build fails.	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-2914	HA: Standby should not enter safemode when resources are low	Major	ha, namenode	Hari Mankude	Vinayakumar B
HDFS-3490	DN WebHDFS methods throw NPE if Namenode RPC address param not specified	Minor	webhdfs	Todd Lipcon	Tsz Wo Nicholas Sze
MAPREDUCE-3927	Shuffle hang when set map.failures.percent	Critical	mrv2	MengWang	Bhallamudi Venkata Siva Kamesh
HDFS-2797	Fix misuses of InputStream#skip in the edit log code	Major	ha, namenode	Aaron T. Myers	Colin P. McCabe
HDFS-3517	TestStartup should bind ephemeral ports	Minor	test	Eli Collins	Eli Collins
HADOOP-8501	Gridmix fails to compile on OpenJDK7u4	Major	benchmarks	Radim Kolar	Radim Kolar
HDFS-3428	move DelegationTokenRenewer to common	Major	security	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-8507	Avoid OOM while deserializing DelegationTokenIdentifer	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-3531	EditLogFileOutputStream#preallocate should check for incomplete writes	Minor	namenode	Colin P. McCabe	Colin P. McCabe
HDFS-766	Error message not clear for set space quota out of boundary values.	Minor	.	Ravi Phulari	Jon Zuanich
HADOOP-8433	Don't set HADOOP_LOG_DIR in hadoop-env.sh	Major	scripts	Brahma Reddy Battula	Brahma Reddy Battula
HDFS-3480	Multiple SLF4J binding warning	Major	build	Eli Collins	Vinayakumar B
HADOOP-8509	JarFinder duplicate entry: META-INF/MANIFEST.MF exception	Minor	util	Matteo Bertozzi	Alejandro Abdelnur
HDFS-3524	TestFileLengthOnClusterRestart failed due to error message change	Major	test	Eli Collins	Brandon Li
HDFS-3518	Provide API to check HDFS operational state	Major	hdfs-client	Bikas Saha	Tsz Wo Nicholas Sze
HADOOP-8495	Update Netty to avoid leaking file descriptors during shuffle	Critical	build	Jason Lowe	Jason Lowe
HADOOP-8512	AuthenticatedURL should reset the Token when the server returns other than OK on authentication	Minor	security	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4341	add types to capacity scheduler properties documentation	Major	capacity-sched, mrv2	Thomas Graves	Karthik Kambatla
MAPREDUCE-4267	mavenize pipes	Critical	mrv2	Thomas Graves	Thomas Graves
MAPREDUCE-4270	data_join test classes are in the wrong packge	Major	mrv2	Brock Noland	Thomas Graves
MAPREDUCE-4306	Problem running Distributed Shell applications as a user other than the one started the daemons	Major	mrv2	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-3889	job client tries to use /tasklog interface, but that doesn't exist anymore	Critical	mrv2	Thomas Graves	Devaraj K
MAPREDUCE-4320	gridmix mainClass wrong in pom.xml	Major	contrib/gridmix	Thomas Graves	Thomas Graves
MAPREDUCE-4295	RM crashes due to DNS issue	Critical	mrv2, resourcemanager	Thomas Graves	Thomas Graves
MAPREDUCE-4031	Node Manager hangs on shut down	Critical	mrv2, nodemanager	Devaraj K	Devaraj K
MAPREDUCE-4361	Fix detailed metrics for protobuf-based RPC on 0.23	Major	mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-4336	Distributed Shell fails when used with the CapacityScheduler	Major	mrv2	Siddharth Seth	Ahmed Radwan
MAPREDUCE-4290	JobStatus.getState() API is giving ambiguous values	Major	mrv2	Nishan Shetty	Devaraj K
HADOOP-7868	Hadoop native fails to compile when default linker option is -Wl,--as-needed	Major	native	James Page	Trevor Robinson
MAPREDUCE-2289	Permissions race can make getStagingDir fail on local filesystem	Major	job submission	Todd Lipcon	Ahmed Radwan
HADOOP-8129	ViewFileSystemTestSetup setupForViewFileSystem is erring when the user's home directory is somewhere other than /home (eg. /User) etc.	Major	fs, test	Ravi Prakash	Ahmed Radwan
MAPREDUCE-4228	mapreduce.job.reduce.slowstart.completedmaps is not working properly to delay the scheduling of the reduce tasks	Major	applicationmaster, mrv2	Jason Lowe	Jason Lowe
MAPREDUCE-4372	Deadlock in Resource Manager between SchedulerEventDispatcher.EventProcessor and Shutdown hook manager	Major	mrv2, resourcemanager	Devaraj K	Devaraj K
HADOOP-8249	invalid hadoop-auth cookies should trigger authentication if info is avail before returning HTTP 401	Major	security	bc Wong	Alejandro Abdelnur
HDFS-3572	Cleanup code which inits SPNEGO in HttpServer	Minor	namenode, security	Todd Lipcon	Todd Lipcon
HDFS-3551	WebHDFS CREATE does not use client location for redirection	Major	webhdfs	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HADOOP-8168	empty-string owners or groups causes {{MissingFormatWidthException}} in o.a.h.fs.shell.Ls.ProcessPath()	Major	fs	Eugene Koontz	Eugene Koontz
MAPREDUCE-4376	TestClusterMRNotification times out	Major	mrv2, test	Jason Lowe	Kihwal Lee
HDFS-3559	DFSTestUtil: use Builder class to construct DFSTestUtil instances	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8438	hadoop-validate-setup.sh refers to examples jar file which doesn't exist	Major	.	Devaraj K	Devaraj K
MAPREDUCE-4383	HadoopPipes.cc needs to include unistd.h	Minor	pipes	Andy Isaacson	Andy Isaacson
HDFS-3491	HttpFs does not set permissions correctly	Major	.	Romain Rigaux	Alejandro Abdelnur
HDFS-3580	incompatible types; no instance(s) of type variable(s) V exist so that V conforms to boolean compiling HttpFSServer.java with OpenJDK	Minor	.	Andy Isaacson	Andy Isaacson
HADOOP-8449	hadoop fs -text fails with compressed sequence files with the codec file extension	Minor	.	Joey Echeverria	Harsh J
HADOOP-8538	CMake builds fail on ARM	Major	native	Trevor Robinson	Trevor Robinson
HDFS-3157	Error in deleting block is keep on coming from DN even after the block report and directory scanning has happened	Major	namenode	J.Andreina	Ashish Singhi
HDFS-3575	HttpFS does not log Exception Stacktraces	Minor	.	Brock Noland	Brock Noland
HADOOP-8110	TestViewFsTrash occasionally fails	Major	fs	Tsz Wo Nicholas Sze	Jason Lowe
HDFS-3574	Fix small race and do some cleanup in GetImageServlet	Minor	namenode	Todd Lipcon	Todd Lipcon
HADOOP-8547	Package hadoop-pipes examples/bin directory (again)	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-3581	FSPermissionChecker#checkPermission sticky bit check missing range check	Major	namenode	Eli Collins	Eli Collins
MAPREDUCE-4392	Counters.makeCompactString() changed behavior from 0.20	Major	mrv2	Jason Lowe	Jason Lowe
HADOOP-8563	don't package hadoop-pipes examples/bin	Minor	build	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4384	Race conditions in IndexCache	Major	nodemanager	Kihwal Lee	Kihwal Lee
MAPREDUCE-4387	RM gets fatal error and exits during TestRM	Major	resourcemanager	Kihwal Lee	Kihwal Lee
HDFS-2619	Remove my personal email address from the libhdfs build file.	Major	build	Owen O'Malley	Owen O'Malley
HADOOP-8566	AvroReflectSerializer.accept(Class) throws a NPE if the class has no package (primitive types and arrays)	Major	io	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4379	Node Manager throws java.lang.OutOfMemoryError: Java heap space due to org.apache.hadoop.fs.LocalDirAllocator.contexts	Blocker	mrv2, nodemanager	Devaraj K	Devaraj K
MAPREDUCE-2220	Fix new API FileOutputFormat-related typos in mapred-default.xml	Minor	documentation	Rui KUBO	Rui KUBO
HDFS-3541	Deadlock between recovery, xceiver and packet responder	Major	datanode	suja s	Vinayakumar B
HDFS-711	hdfsUtime does not handle atime = 0 or mtime = 0 correctly	Major	documentation	freestyler	Colin P. McCabe
HDFS-3548	NamenodeFsck.copyBlock fails to create a Block Reader	Critical	namenode	Todd Lipcon	Colin P. McCabe
HDFS-3591	Backport HDFS-3357 to branch-0.23	Major	.	Robert Joseph Evans	Robert Joseph Evans
HDFS-3603	Decouple TestHDFSTrash from TestTrash	Major	test	Jason Lowe	Jason Lowe
MAPREDUCE-4402	TestFileInputFormat fails intermittently	Major	test	Jason Lowe	Jason Lowe
MAPREDUCE-2739	MR-279: Update installation docs (remove YarnClientFactory)	Minor	mrv2	Ahmed Radwan	Bo Wang
MAPREDUCE-3993	Graceful handling of codec errors during decompression	Major	mrv1, mrv2	Todd Lipcon	Karthik Kambatla
MAPREDUCE-4300	OOM in AM can turn it into a zombie.	Major	applicationmaster	Robert Joseph Evans	Robert Joseph Evans
HDFS-3555	idle client socket triggers DN ERROR log (should be INFO or DEBUG)	Major	datanode, hdfs-client	Jeff Lord	Andy Isaacson
MAPREDUCE-4252	MR2 job never completes with 1 pending task	Major	mrv2	Tom White	Tom White
HADOOP-8573	Configuration tries to read from an inputstream resource multiple times.	Major	conf	Robert Joseph Evans	Robert Joseph Evans
HDFS-3629	fix the typo in the error message about inconsistent storage layout version	Trivial	namenode	Brandon Li	Brandon Li
HDFS-3611	NameNode prints unnecessary WARNs about edit log normally skipping a few bytes	Trivial	namenode	Harsh J	Colin P. McCabe
HADOOP-8586	Fixup a bunch of SPNEGO misspellings	Major	.	Eli Collins	Eli Collins
HADOOP-3886	Error in javadoc of Reporter, Mapper and Progressable	Minor	documentation	brien colwell	Jingguo Yao
HDFS-3615	Two BlockTokenSecretManager findbugs warnings	Major	security	Eli Collins	Aaron T. Myers
HADOOP-8587	HarFileSystem access of harMetaCache isn't threadsafe	Minor	fs	Eli Collins	Eli Collins
HADOOP-8585	Fix initialization circularity between UserGroupInformation and HadoopConfiguration	Minor	.	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4416	Some tests fail if Clover is enabled	Critical	client, mrv2	Kihwal Lee	Kihwal Lee
HDFS-3633	libhdfs: hdfsDelete should pass JNI_FALSE or JNI_TRUE	Minor	libhdfs	Colin P. McCabe	Colin P. McCabe
HDFS-3306	fuse_dfs: don't lock release operations	Minor	.	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4432	Confusing warning message when GenericOptionsParser is not used	Trivial	.	Gabriel Reid
MAPREDUCE-4441	Fix build issue caused by MR-3451	Blocker	.	Karthik Kambatla	Karthik Kambatla
MAPREDUCE-4419	./mapred queue -info <queuename> -showJobs displays all the jobs irrespective of <queuename>	Major	mrv2	Nishan Shetty	Devaraj K
MAPREDUCE-4299	Terasort hangs with MR2 FifoScheduler	Major	mrv2	Tom White	Tom White
HADOOP-8543	Invalid pom.xml files on 0.23 branch	Major	build	Radim Kolar	Radim Kolar
HADOOP-8499	Lower min.user.id to 500 for the tests	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-470	libhdfs should handle 0-length reads from FSInputStream correctly	Minor	.	Pete Wyckoff	Colin P. McCabe
HDFS-3609	libhdfs: don't force the URI to look like hdfs://hostname:port	Major	libhdfs	Colin P. McCabe	Colin P. McCabe
HDFS-3539	libhdfs code cleanups	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-7818	DiskChecker#checkDir should fail if the directory is not executable	Minor	util	Eli Collins	madhukara phatak
MAPREDUCE-4395	Possible NPE at ClientDistributedCacheManager#determineTimestamps	Critical	distributed-cache, job submission, mrv2	Bhallamudi Venkata Siva Kamesh	Bhallamudi Venkata Siva Kamesh
HDFS-3622	Backport HDFS-3541 to branch-0.23	Major	.	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4447	Remove aop from cruft from the ant build	Major	build	Eli Collins	Eli Collins
MAPREDUCE-4437	Race in MR ApplicationMaster can cause reducers to never be scheduled	Critical	applicationmaster, mrv2	Jason Lowe	Jason Lowe
HADOOP-8423	MapFile.Reader.get() crashes jvm or throws EOFException on Snappy or LZO block-compressed data	Major	io	Jason B	Todd Lipcon
HADOOP-8599	Non empty response from FileSystem.getFileBlockLocations when asking for data beyond the end of file	Major	fs	Andrey Klochkov	Andrey Klochkov
MAPREDUCE-4440	Change SchedulerApp & SchedulerNode to be a minimal interface	Major	.	Arun C Murthy	Arun C Murthy
MAPREDUCE-4449	Incorrect MR_HISTORY_STORAGE property name in JHAdminConfig	Major	mrv2	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-4380	Empty Userlogs directory is getting created under logs directory	Minor	mrv2, nodemanager	Devaraj K	Devaraj K
MAPREDUCE-4448	Nodemanager crashes upon application cleanup if aggregation failed to start	Critical	mrv2, nodemanager	Jason Lowe	Jason Lowe
HADOOP-8537	Two TFile tests failing recently	Major	io	Todd Lipcon	Todd Lipcon
MAPREDUCE-4406	Users should be able to specify the MiniCluster ResourceManager and JobHistoryServer ports	Major	mrv2, test	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-4407	Add hadoop-yarn-server-tests-<version>-tests.jar to hadoop dist package	Major	build, mrv2	Ahmed Radwan	Ahmed Radwan
HDFS-3605	Block mistakenly marked corrupt during edit log catchup phase of failover	Major	ha, namenode	Brahma Reddy Battula	Todd Lipcon
HDFS-3646	LeaseRenewer can hold reference to inactive DFSClient instances forever	Critical	hdfs-client	Kihwal Lee	Kihwal Lee
HDFS-3673	libhdfs: fix some compiler warnings	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-1249	with fuse-dfs, chown which only has owner (or only group) argument fails with Input/output error.	Minor	fuse-dfs	matsusaka kentaro	Colin P. McCabe
HDFS-3690	BlockPlacementPolicyDefault incorrectly casts LOG	Major	.	Eli Collins	Eli Collins
HDFS-3577	WebHdfsFileSystem can not read files larger than 24KB	Blocker	webhdfs	Alejandro Abdelnur	Tsz Wo Nicholas Sze
HDFS-3597	SNN can fail to start on upgrade	Minor	namenode	Andy Isaacson	Andy Isaacson
HDFS-3608	fuse_dfs: detect changes in UID ticket cache	Minor	.	Colin P. McCabe	Colin P. McCabe
HDFS-3688	Namenode loses datanode hostname if datanode re-registers	Major	datanode	Jason Lowe	Jason Lowe
MAPREDUCE-3893	allow capacity scheduler configs maximum-applications and maximum-am-resource-percent configurable on a per queue basis	Critical	mrv2	Thomas Graves	Thomas Graves
HADOOP-8606	FileSystem.get may return the wrong filesystem	Major	fs	Daryn Sharp	Daryn Sharp
MAPREDUCE-4467	IndexCache failures due to missing synchronization	Critical	nodemanager	Andrey Klochkov	Kihwal Lee
MAPREDUCE-4465	Update description of yarn.nodemanager.address property	Trivial	.	Bo Wang	Bo Wang
HDFS-3720	hdfs.h must get packaged	Major	libhdfs	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4423	Potential infinite fetching of map output	Critical	mrv2	Robert Joseph Evans	Robert Joseph Evans
HDFS-3696	Create files with WebHdfsFileSystem goes OOM when file size is big	Critical	webhdfs	Kihwal Lee	Tsz Wo Nicholas Sze
HADOOP-8626	Typo in default setting for hadoop.security.group.mapping.ldap.search.filter.user	Major	security	Jonathan Natkins	Jonathan Natkins
HADOOP-8613	AbstractDelegationTokenIdentifier#getUser() should set token auth type	Critical	.	Daryn Sharp	Daryn Sharp
HDFS-3679	fuse_dfs notrash option sets usetrash	Minor	fuse-dfs	Conrad Meyer	Conrad Meyer
HADOOP-8627	FS deleteOnExit may delete the wrong path	Critical	fs	Daryn Sharp	Daryn Sharp
HADOOP-8634	Ensure FileSystem#close doesn't squawk for deleteOnExit paths	Critical	fs	Daryn Sharp	Daryn Sharp
HDFS-3732	fuse_dfs: incorrect configuration value checked for connection expiry timer period	Minor	fuse-dfs	Colin P. McCabe	Colin P. McCabe
HADOOP-8550	hadoop fs -touchz automatically created parent directories	Major	fs	Robert Joseph Evans	John George
MAPREDUCE-4342	Distributed Cache gives inconsistent result if cache files get deleted from task tracker	Major	.	Mayank Bansal	Mayank Bansal
MAPREDUCE-4456	LocalDistributedCacheManager can get an ArrayIndexOutOfBounds when creating symlinks	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4496	AM logs link is missing user name	Major	applicationmaster, mrv2	Jason Lowe	Jason Lowe
HADOOP-8637	FilterFileSystem#setWriteChecksum is broken	Critical	fs	Daryn Sharp	Daryn Sharp
MAPREDUCE-4493	Distibuted Cache Compatability Issues	Critical	mrv2	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4492	Configuring total queue capacity between 100.5 and 99.5 at perticular level is sucessfull	Minor	mrv2	Nishan Shetty	Mayank Bansal
MAPREDUCE-4483	2.0 build does not work	Major	.	John George	John George
HADOOP-8370	Native build failure: javah: class file for org.apache.hadoop.classification.InterfaceAudience not found	Major	native	Trevor Robinson	Trevor Robinson
MAPREDUCE-4457	mr job invalid transition TA_TOO_MANY_FETCH_FAILURE at FAILED	Critical	mrv2	Thomas Graves	Robert Joseph Evans
MAPREDUCE-4444	nodemanager fails to start when one of the local-dirs is bad	Blocker	nodemanager	Nathan Roberts	Jason Lowe
HDFS-3738	TestDFSClientRetries#testFailuresArePerOperation sets incorrect timeout config	Minor	test	Aaron T. Myers	Aaron T. Myers
HADOOP-8633	Interrupted FsShell copies may leave tmp files	Critical	fs	Daryn Sharp	Daryn Sharp
HADOOP-8480	The native build should honor -DskipTests	Trivial	.	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4504	SortValidator writes to wrong directory	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
HDFS-3724	add InterfaceAudience annotations to HttpFS classes and making inner enum static	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3756	DelegationTokenFetcher creates 2 HTTP connections, the second one not properly configured	Critical	security	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4503	Should throw InvalidJobConfException if duplicates found in cacheArchives or cacheFiles	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4498	Remove hsqldb jar from Hadoop runtime classpath	Critical	build, examples	Robert Kanter	Robert Kanter
HDFS-3579	libhdfs: fix exception handling	Major	libhdfs	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4494	TestFifoScheduler failing with Metrics source QueueMetrics,q0=default already exists!	Major	mrv2, test	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-4484	Incorrect IS_MINI_YARN_CLUSTER property name in YarnConfiguration	Major	mrv2	Ahmed Radwan	Ahmed Radwan
HDFS-3760	primitiveCreate is a write, not a read	Minor	hdfs-client	Andy Isaacson	Andy Isaacson
HADOOP-8660	TestPseudoAuthenticator failing with NPE	Major	.	Eli Collins	Alejandro Abdelnur
YARN-12	Several Findbugs issues with new FairScheduler in YARN	Major	scheduler	Junping Du	Junping Du
HDFS-3710	libhdfs misuses O_RDONLY/WRONLY/RDWR	Minor	libhdfs	Andy Isaacson	Andy Isaacson
HDFS-3755	Creating an already-open-for-write file with overwrite=true fails	Major	namenode	Todd Lipcon	Todd Lipcon
YARN-13	Merge of yarn reorg into branch-2 copied trunk tree	Critical	.	Todd Lipcon
MAPREDUCE-3782	teragen terasort jobs fail when using webhdfs://	Critical	mrv2	Arpit Gupta	Jason Lowe
YARN-14	Symlinks to peer distributed cache files no longer work	Major	nodemanager	Jason Lowe	Jason Lowe
HDFS-3721	hsync support broke wire compatibility	Critical	datanode, hdfs-client	Todd Lipcon	Aaron T. Myers
HDFS-3758	TestFuseDFS test failing	Minor	fuse-dfs	Colin P. McCabe	Colin P. McCabe
HDFS-3754	BlockSender doesn't shutdown ReadaheadPool threads	Major	datanode	Eli Collins	Eli Collins
HADOOP-8659	Native libraries must build with soft-float ABI for Oracle JVM on ARM	Major	native	Trevor Robinson	Colin P. McCabe
MAPREDUCE-4053	Counters group names deprecation is wrong, iterating over group names deprecated names don't show up	Major	mrv2	Alejandro Abdelnur	Robert Joseph Evans
HDFS-3790	test_fuse_dfs.c doesn't compile on centos 5	Minor	fuse-dfs	Colin P. McCabe	Colin P. McCabe
HDFS-3658	TestDFSClientRetries#testNamenodeRestart failed	Major	.	Eli Collins	Tsz Wo Nicholas Sze
HDFS-3718	Datanode won't shutdown because of runaway DataBlockScanner thread	Critical	datanode	Kihwal Lee	Kihwal Lee
HDFS-3794	WebHDFS Open used with Offset returns the original (and incorrect) Content Length in the HTTP Header.	Major	webhdfs	Ravi Prakash	Ravi Prakash
HADOOP-8699	some common testcases create core-site.xml in test-classes making other testcases to fail	Critical	test	Alejandro Abdelnur	Alejandro Abdelnur
HADOOP-8703	distcpV2: turn CRC checking off for 0 byte size	Major	.	Dave Thompson	Dave Thompson
HDFS-3048	Small race in BlockManager#close	Major	namenode	Eli Collins	Andy Isaacson
MAPREDUCE-4562	Support for "FileSystemCounter" legacy counter group name for compatibility reasons is creating incorrect counter name	Major	.	Jarek Jarcec Cecho	Jarek Jarcec Cecho
HADOOP-8654	TextInputFormat delimiter bug:- Input Text portion ends with & Delimiter starts with same char/char sequence	Major	util	Gelesh
HDFS-2963	Console Output is confusing while executing metasave (dfsadmin command)	Minor	.	J.Andreina	Andrew Wang
HADOOP-8390	TestFileSystemCanonicalization fails with JDK7	Major	test	Trevor Robinson	Trevor Robinson
HDFS-3808	fuse_dfs: postpone libhdfs intialization until after fork	Critical	fuse-dfs	Colin P. McCabe	Colin P. McCabe
HDFS-3788	distcp can't copy large files using webhdfs due to missing Content-Length header	Critical	webhdfs	Eli Collins	Tsz Wo Nicholas Sze
HADOOP-8692	TestLocalDirAllocator fails intermittently with JDK7	Major	test	Trevor Robinson	Trevor Robinson
HADOOP-8693	TestSecurityUtil fails intermittently with JDK7	Major	test	Trevor Robinson	Trevor Robinson
HADOOP-8697	TestWritableName fails intermittently with JDK7	Major	test	Trevor Robinson	Trevor Robinson
YARN-25	remove old aggregated logs	Major	.	Thomas Graves	Robert Joseph Evans
HADOOP-8695	TestPathData fails intermittently with JDK7	Major	test	Trevor Robinson	Trevor Robinson
HDFS-3816	Invalidate work percentage default value should be 0.32f instead of 32	Major	namenode	Jing Zhao	Jing Zhao
HADOOP-7967	Need generalized multi-token filesystem support	Critical	fs, security	Daryn Sharp	Daryn Sharp
YARN-27	Failed refreshQueues due to misconfiguration prevents further refreshing of queues	Major	.	Ramya Sunil	Arun C Murthy
YARN-58	NM leaks filesystems	Critical	nodemanager	Daryn Sharp	Jason Lowe
HDFS-3803	BlockPoolSliceScanner new work period notice is very chatty at INFO level	Minor	datanode	Andrew Purtell
HADOOP-8611	Allow fall-back to the shell-based implementation when JNI-based users-group mapping fails	Major	security	Kihwal Lee	Robert Parker
HADOOP-8686	Fix warnings in native code	Minor	native	Colin P. McCabe	Colin P. McCabe
HDFS-3707	TestFSInputChecker: improper use of skip	Minor	.	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-3506	Calling getPriority on JobInfo after parsing a history log with JobHistoryParser throws a NullPointerException	Minor	client, mrv2	Ratandeep Ratti	Jason Lowe
MAPREDUCE-4570	ProcfsBasedProcessTree#constructProcessInfo() prints a warning if procfsDir/<pid>/stat is not found.	Minor	mrv2	Ahmed Radwan	Ahmed Radwan
HDFS-3194	DataNode block scanner is running too frequently	Major	datanode	suja s	Andy Isaacson
YARN-22	Using URI for yarn.nodemanager log dirs fails	Minor	.	Eli Collins	Mayank Bansal
HADOOP-8720	TestLocalFileSystem should use test root subdirectory	Trivial	test	Vlad Rozov	Vlad Rozov
HDFS-3830	test_libhdfs_threaded: use forceNewInstance	Minor	libhdfs	Colin P. McCabe	Colin P. McCabe
HDFS-3832	Remove protocol methods related to DistributedUpgrade	Major	datanode, namenode	Suresh Srinivas	Suresh Srinivas
HDFS-3835	Long-lived 2NN cannot perform a checkpoint if security is enabled and the NN restarts with outstanding delegation tokens	Major	namenode, security	Aaron T. Myers	Aaron T. Myers
HADOOP-8721	ZKFC should not retry 45 times when attempting a graceful fence during a failover	Critical	auto-failover, ha	suja s	Vinayakumar B
MAPREDUCE-4068	Jars in lib subdirectory of the submittable JAR are not added to the classpath	Blocker	mrv2	Ahmed Radwan	Robert Kanter
MAPREDUCE-4577	HDFS-3672 broke TestCombineFileInputFormat.testMissingBlocks() test	Minor	test	Alejandro Abdelnur	Aaron T. Myers
MAPREDUCE-4470	Fix TestCombineFileInputFormat.testForEmptyFile	Major	test	Kihwal Lee	Ilya Katsov
HDFS-3841	Port HDFS-3835 to branch-0.23	Major	.	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8632	Configuration leaking class-loaders	Major	conf	Costin Leau	Costin Leau
HADOOP-8655	In TextInputFormat, while specifying textinputformat.record.delimiter the character/character sequences in data file similar to starting character/starting character sequence in delimiter were found missing in certain cases in the Map Output	Major	util	Arun A K
HADOOP-8225	DistCp fails when invoked by Oozie	Blocker	security	Mithun Radhakrishnan	Daryn Sharp
MAPREDUCE-2374	"Text File Busy" errors launching MR tasks	Major	.	Todd Lipcon	Andy Isaacson
HADOOP-8709	globStatus changed behavior from 0.20/1.x	Critical	fs	Jason Lowe	Jason Lowe
HDFS-3715	Fix TestFileCreation#testFileCreationNamenodeRestart	Major	test	Eli Collins	Andrew Wang
HADOOP-8725	MR is broken when security is off	Blocker	security	Daryn Sharp	Daryn Sharp
HDFS-3177	Allow DFSClient to find out and use the CRC type being used for a file.	Major	datanode, hdfs-client	Kihwal Lee	Kihwal Lee
HDFS-3683	Edit log replay progress indicator shows >100% complete	Minor	namenode	Todd Lipcon	Plamen Jeliazkov
HDFS-3853	Port MiniDFSCluster enableManagedDfsDirsRedundancy option to branch-2	Minor	namenode	Colin P. McCabe	Colin P. McCabe
HADOOP-8060	Add a capability to discover and set checksum types per file.	Major	fs, util	Kihwal Lee	Kihwal Lee
YARN-37	TestRMAppTransitions.testAppSubmittedKilled passes for the wrong reason	Minor	resourcemanager	Jason Lowe	Mayank Bansal
MAPREDUCE-4580	Change MapReduce to use the yarn-client module	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
HDFS-3856	TestHDFSServerPorts failure is causing surefire fork failure	Blocker	test	Thomas Graves	Eli Collins
MAPREDUCE-4579	TestTaskAttempt fails jdk7	Major	.	Thomas Graves	Thomas Graves
YARN-31	TestDelegationTokenRenewer fails on jdk7	Major	.	Thomas Graves	Thomas Graves
HDFS-3860	HeartbeatManager#Monitor may wrongly hold the writelock of namesystem	Major	.	Jing Zhao	Jing Zhao
MAPREDUCE-4600	TestTokenCache.java from MRV1 no longer compiles	Critical	.	Robert Joseph Evans	Daryn Sharp
HDFS-3849	When re-loading the FSImage, we should clear the existing genStamp and leases.	Critical	namenode	Colin P. McCabe	Colin P. McCabe
HDFS-3864	NN does not update internal file mtime for OP_CLOSE when reading from the edit log	Major	namenode	Aaron T. Myers	Aaron T. Myers
HADOOP-8737	cmake: always use JAVA_HOME to find libjvm.so, jni.h, jni_md.h	Minor	native	Colin P. McCabe	Colin P. McCabe
HADOOP-8614	IOUtils#skipFully hangs forever on EOF	Minor	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8747	Syntax error on cmake version 2.6 patch 2 in JNIFlags.cmake	Major	native	Colin P. McCabe	Colin P. McCabe
MAPREDUCE-4608	hadoop-mapreduce-client is missing some dependencies	Major	build	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4610	Support deprecated mapreduce.job.counters.limit property in MR2	Major	mrv2	Tom White	Tom White
HDFS-3861	Deadlock in DFSClient	Blocker	hdfs-client	Kihwal Lee	Kihwal Lee
HADOOP-8726	The Secrets in Credentials are not available to MR tasks	Major	security	Benoy Antony	Daryn Sharp
HADOOP-8031	Configuration class fails to find embedded .jar resources; should use URL.openStream()	Major	conf	Elias Ross	Elias Ross
MAPREDUCE-4569	TestHsWebServicesJobsQuery fails on jdk7	Major	.	Thomas Graves	Thomas Graves
HDFS-3837	Fix DataNode.recoverBlock findbugs warning	Major	datanode	Eli Collins	Eli Collins
HADOOP-8722	Update BUILDING.txt with latest snappy info	Minor	documentation	Eli Collins	Colin P. McCabe
HDFS-3733	Audit logs should include WebHDFS access	Major	webhdfs	Andy Isaacson	Andy Isaacson
YARN-63	RMNodeImpl is missing valid transitions from the UNHEALTHY state	Major	resourcemanager	Jason Lowe	Jason Lowe
HADOOP-8727	Gracefully deprecate dfs.umaskmode in 2.x onwards	Major	conf	Harsh J	Harsh J
YARN-66	aggregated logs permissions not set properly	Critical	nodemanager	Thomas Graves	Thomas Graves
MAPREDUCE-4612	job summary file permissions not set when its created	Critical	.	Thomas Graves	Thomas Graves
HDFS-3833	TestDFSShell fails on Windows due to file concurrent read write	Major	test	Brandon Li	Brandon Li
MAPREDUCE-4611	MR AM dies badly when Node is decomissioned	Critical	.	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4604	In mapred-default, mapreduce.map.maxattempts & mapreduce.reduce.maxattempts defaults are set to 4 as well as mapreduce.job.maxtaskfailures.per.tracker.	Critical	mrv2	Ravi Prakash	Ravi Prakash
HDFS-3873	Hftp assumes security is disabled if token fetch fails	Major	hdfs-client	Daryn Sharp	Daryn Sharp
HDFS-3852	TestHftpDelegationToken is broken after HADOOP-8225	Major	hdfs-client, security	Aaron T. Myers	Daryn Sharp
HDFS-3879	Fix findbugs warning in TransferFsImage on branch-2	Minor	namenode	Eli Collins	Eli Collins
HDFS-3466	The SPNEGO filter for the NameNode should come out of the web keytab file	Major	namenode, security	Owen O'Malley	Owen O'Malley
HDFS-3469	start-dfs.sh will start zkfc, but stop-dfs.sh will not stop zkfc similarly.	Minor	auto-failover	Vinayakumar B	Vinayakumar B
HDFS-3888	BlockPlacementPolicyDefault code cleanup	Minor	.	Jing Zhao	Jing Zhao
YARN-79	Calling YarnClientImpl.close throws Exception	Major	client	Bikas Saha	Vinod Kumar Vavilapalli
YARN-42	Node Manager throws NPE on startup	Major	nodemanager	Devaraj K	Devaraj K
HADOOP-8764	CMake: HADOOP-8737 broke ARM build	Major	build	Trevor Robinson	Trevor Robinson
HDFS-1490	TransferFSImage should timeout	Minor	namenode	Dmytro Molkov	Vinayakumar B
HDFS-3054	distcp -skipcrccheck has no effect	Major	tools	patrick white	Colin P. McCabe
HADOOP-8770	NN should not RPC to self to find trash defaults (causes deadlock)	Blocker	trash	Todd Lipcon	Eli Collins
YARN-68	NodeManager will refuse to shutdown indefinitely due to container log aggregation	Major	nodemanager	patrick white	Daryn Sharp
YARN-83	Change package of YarnClient to include apache	Major	client	Bikas Saha	Bikas Saha
MAPREDUCE-4635	MR side of YARN-83. Changing package of YarnClient	Major	.	Bikas Saha	Bikas Saha
YARN-36	branch-2.1.0-alpha doesn't build	Blocker	.	Eli Collins	Radim Kolar
HADOOP-8648	libhadoop: native CRC32 validation crashes when io.bytes.per.checksum=1	Major	.	Colin P. McCabe	Colin P. McCabe
HADOOP-8766	FileContextMainOperationsBaseTest should randomize the root dir	Major	test	Eli Collins	Colin P. McCabe
YARN-87	NM ResourceLocalizationService does not set permissions of local cache directories	Critical	nodemanager	Jason Lowe	Jason Lowe
HDFS-3890	filecontext mkdirs doesn't apply umask as expected	Critical	.	Thomas Graves	Thomas Graves
MAPREDUCE-4633	history server doesn't set permissions on all subdirs	Critical	jobhistoryserver	Thomas Graves	oss.wakayama
HADOOP-8749	HADOOP-8031 changed the way in which relative xincludes are handled in Configuration.	Major	conf	Ahmed Radwan	Ahmed Radwan
HDFS-3895	hadoop-client must include commons-cli	Major	build	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4572	Can not access user logs - Jetty is not configured by default to serve aliases/symlinks	Major	tasktracker, webapps	Ahmed Radwan	Ahmed Radwan
MAPREDUCE-4641	Exception in commitJob marks job as successful in job history	Major	mrv2	Jason Lowe	Jason Lowe
YARN-15	YarnConfiguration DEFAULT_YARN_APPLICATION_CLASSPATH should be updated	Critical	nodemanager	Alejandro Abdelnur	Arun C Murthy
YARN-75	RMContainer should handle a RELEASE event while RUNNING	Major	.	Siddharth Seth	Siddharth Seth
HADOOP-8431	Running distcp wo args throws IllegalArgumentException	Major	.	Eli Collins	Sandy Ryza
MAPREDUCE-4642	MiniMRClientClusterFactory should not use job.setJar()	Major	test	Robert Kanter	Robert Kanter
HADOOP-8775	MR2 distcp permits non-positive value to -bandwidth option which causes job never to complete	Major	.	Sandy Ryza	Sandy Ryza
HDFS-2757	Cannot read a local block that's being written to when using the local read short circuit	Major	.	Jean-Daniel Cryans	Jean-Daniel Cryans
HADOOP-8781	hadoop-config.sh should add JAVA_LIBRARY_PATH to LD_LIBRARY_PATH	Major	scripts	Alejandro Abdelnur	Alejandro Abdelnur
MAPREDUCE-4646	client does not receive job diagnostics for failed jobs	Major	mrv2	Jason Lowe	Jason Lowe
HDFS-3664	BlockManager race when stopping active services	Major	test	Eli Collins	Colin P. McCabe
HDFS-3902	TestDatanodeBlockScanner#testBlockCorruptionPolicy is broken	Minor	.	Andy Isaacson	Andy Isaacson
HDFS-3928	MiniDFSCluster should reset the first ExitException on shutdown	Major	test	Eli Collins	Eli Collins
HADOOP-8801	ExitUtil#terminate should capture the exception stack trace	Major	.	Eli Collins	Eli Collins
YARN-108	FSDownload can create cache directories with the wrong permissions	Critical	nodemanager	Jason Lowe	Jason Lowe
YARN-88	DefaultContainerExecutor can fail to set proper permissions	Major	nodemanager	Jason Lowe	Jason Lowe
MAPREDUCE-4649	mr-jobhistory-daemon.sh needs to be updated post YARN-1	Major	jobhistoryserver	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
MAPREDUCE-4647	We should only unjar jobjar if there is a lib directory in it.	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
HDFS-3972	Trash emptier fails in secure HA cluster	Critical	namenode	Todd Lipcon	Todd Lipcon
HDFS-3731	2.0 release upgrade must handle blocks being written from 1.0	Blocker	datanode	Suresh Srinivas	Kihwal Lee
YARN-106	Nodemanager needs to set permissions of local directories	Major	nodemanager	Jason Lowe	Jason Lowe
MAPREDUCE-4691	Historyserver can report "Unknown job" after RM says job has completed	Critical	jobhistoryserver, mrv2	Jason Lowe	Robert Joseph Evans
MAPREDUCE-4689	JobClient.getMapTaskReports on failed job results in NPE	Major	client	Jason Lowe	Jason Lowe
YARN-138	Improve default config values for YARN	Major	resourcemanager, scheduler	Arun C Murthy	Harsh J
YARN-174	TestNodeStatusUpdater is failing in trunk	Major	nodemanager	Robert Joseph Evans	Vinod Kumar Vavilapalli

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-3983	TestTTResourceReporting can fail, and should just be deleted	Major	mrv1	Robert Joseph Evans	Ravi Prakash
HADOOP-8283	Allow tests to control token service value	Major	test	Daryn Sharp	Daryn Sharp
HDFS-3258	Test for HADOOP-8144 (pseudoSortByDistance in NetworkTopology for first rack local node)	Major	test	Eli Collins	Junping Du
MAPREDUCE-4212	TestJobClientGetJob sometimes fails	Major	test	Daryn Sharp	Daryn Sharp
HDFS-3606	libhdfs: create self-contained unit test	Minor	libhdfs	Colin P. McCabe	Colin P. McCabe
HDFS-3665	Add a test for renaming across file systems via a symlink	Major	test	Eli Collins	Eli Collins
HDFS-3709	TestStartup tests still binding to the ephemeral port	Major	test	Eli Collins	Eli Collins
HDFS-3291	add test that covers HttpFS working w/ a non-HDFS Hadoop filesystem	Major	.	Alejandro Abdelnur	Alejandro Abdelnur
HDFS-3634	Add self-contained, mavenized fuse_dfs test	Minor	fuse-dfs	Colin P. McCabe	Colin P. McCabe

SUB-TASKS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-2330	In NNStorage.java, IOExceptions of stream closures can mask root exceptions.	Major	namenode	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-3168	Clean up FSNamesystem and BlockManager	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
MAPREDUCE-3942	Randomize master key generation for ApplicationTokenSecretManager and roll it every so often	Major	mrv2, security	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
MAPREDUCE-3972	Locking and exception issues in JobHistory Server.	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4161	create sockets consistently	Major	client, mrv2	Daryn Sharp	Daryn Sharp
MAPREDUCE-3613	web service calls header contains 2 content types	Critical	mrv2	Thomas Graves	Thomas Graves
MAPREDUCE-4163	consistently set the bind address	Major	mrv2	Daryn Sharp	Daryn Sharp
MAPREDUCE-4162	Correctly set token service	Major	client, mrv2	Daryn Sharp	Daryn Sharp
HDFS-3369	change variable names referring to inode in blockmanagement to more appropriate	Minor	namenode	John George	John George
HDFS-2717	BookKeeper Journal output stream doesn't check addComplete rc	Major	.	Ivan Kelly	Ivan Kelly
HDFS-3058	HA: Bring BookKeeperJournalManager up to date with HA changes	Major	.	Ivan Kelly	Ivan Kelly
HDFS-3452	BKJM:Switch from standby to active fails and NN gets shut down due to delay in clearing of lock	Blocker	.	suja s	Uma Maheswara Rao G
HDFS-3474	Cleanup Exception handling in BookKeeper journal manager	Major	.	Ivan Kelly	Ivan Kelly
HDFS-3468	Make BKJM-ZK session timeout configurable.	Major	.	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-3423	BKJM: NN startup is failing, when tries to recoverUnfinalizedSegments() a bad inProgress_ ZNodes	Major	.	Rakesh R	Ivan Kelly
HDFS-3441	Race condition between rolling logs at active NN and purging at standby	Major	.	suja s	Rakesh R
HDFS-3502	Change INodeFile and INodeFileUnderConstruction to package private	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze
HDFS-3408	BKJM : Namenode format fails, if there is no BK root	Minor	namenode	Rakesh R	Rakesh R
HDFS-3389	Document the BKJM usage in Namenode HA.	Major	namenode	Uma Maheswara Rao G	Uma Maheswara Rao G
HDFS-3190	Simple refactors in existing NN code to assist QuorumJournalManager extension	Minor	namenode	Todd Lipcon	Todd Lipcon
MAPREDUCE-3940	ContainerTokens should have an expiry interval	Major	mrv2, security	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
HADOOP-7754	Expose file descriptors from Hadoop-wrapped local FileSystems	Major	native, performance	Todd Lipcon	Todd Lipcon
YARN-39	RM-NM secret-keys should be randomly generated and rolled every so often	Critical	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-29	Add a yarn-client module	Major	client	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
YARN-60	NMs rejects all container tokens after secret key rolls	Blocker	nodemanager	Daryn Sharp	Vinod Kumar Vavilapalli

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-4051	Remove the empty hadoop-mapreduce-project/assembly/all.xml file	Major	.	Ravi Prakash	Ravi Prakash
MAPREDUCE-4134	Remove references of mapred.child.ulimit etc. since they are not being used any more	Major	mrv2	Ravi Prakash	Ravi Prakash
HADOOP-8403	bump up POMs version to 2.0.1-SNAPSHOT	Major	build	Alejandro Abdelnur	Alejandro Abdelnur
YARN-1	Move YARN out of hadoop-mapreduce	Major	.	Arun C Murthy	Arun C Murthy
YARN-154	Create Yarn trunk and commit jobs	Major	.	Eli Collins	Robert Joseph Evans