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Apache Hadoop Changelog

Release 0.23.4 - 2012-10-15

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-7788	HA: Simple HealthMonitor class to watch an HAService	Major	ha	Todd Lipcon	Todd Lipcon
MAPREDUCE-4651	Benchmarking random reads with DFSIO	Major	benchmarks, test	Konstantin Shvachko	Konstantin Shvachko

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-8183	Stop using "mapred.used.genericoptionsparser" to avoid unnecessary warnings	Minor	util	Harsh J	Harsh J
HADOOP-8623	hadoop jar command should respect HADOOP_OPTS	Minor	scripts	Steven Willis	Steven Willis
MAPREDUCE-4408	allow jobs to set a JAR that is in the distributed cached	Major	mrv1, mrv2	Alejandro Abdelnur	Robert Kanter
MAPREDUCE-2786	TestDFSIO should also test compression reading/writing from command-line.	Minor	benchmarks	Plamen Jeliazkov	Plamen Jeliazkov
YARN-57	Plugable process tree	Major	nodemanager	Radim Kolar	Radim Kolar
MAPREDUCE-4645	Providing a random seed to Slive should make the sequence of filenames completely deterministic	Major	performance, test	Ravi Prakash	Ravi Prakash
YARN-137	Change the default scheduler to the CapacityScheduler	Major	scheduler	Siddharth Seth	Siddharth Seth

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-4193	broken doc link for yarn-default.xml in site.xml	Major	documentation	Patrick Hunt	Patrick Hunt
HADOOP-8310	FileContext#checkPath should handle URIs with no port	Major	fs	Aaron T. Myers	Aaron T. Myers
HDFS-3860	HeartbeatManager#Monitor may wrongly hold the writelock of namesystem	Major	.	Jing Zhao	Jing Zhao
HADOOP-8684	Deadlock between WritableComparator and WritableComparable	Minor	io	Hiroshi Ikeda	Jing Zhao
YARN-42	Node Manager throws NPE on startup	Major	nodemanager	Devaraj K	Devaraj K
YARN-75	RMContainer should handle a RELEASE event while RUNNING	Major	.	Siddharth Seth	Siddharth Seth
MAPREDUCE-4646	client does not receive job diagnostics for failed jobs	Major	mrv2	Jason Lowe	Jason Lowe
YARN-93	Diagnostics missing from applications that have finished but failed	Major	resourcemanager	Jason Lowe	Jason Lowe
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
HADOOP-8822	relnotes.py was deleted post mavenization	Major	.	Robert Joseph Evans	Robert Joseph Evans
MAPREDUCE-4647	We should only unjar jobjar if there is a lib directory in it.	Major	mrv2	Robert Joseph Evans	Robert Joseph Evans
HADOOP-8843	Old trash directories are never deleted on upgrade from 1.x	Critical	.	Robert Joseph Evans	Jason Lowe
HDFS-3831	Failure to renew tokens due to test-sources left in classpath	Critical	security	Jason Lowe	Jason Lowe
HDFS-3922	0.22 and 0.23 namenode throws away blocks under construction on restart	Critical	namenode	Kihwal Lee	Kihwal Lee
HDFS-3731	2.0 release upgrade must handle blocks being written from 1.0	Blocker	datanode	Suresh Srinivas	Kihwal Lee
HDFS-3373	FileContext HDFS implementation can leak socket caches	Major	hdfs-client	Todd Lipcon	John George
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
HDFS-3626	Creating file with invalid path can corrupt edit log	Blocker	namenode	Todd Lipcon	Todd Lipcon
HDFS-3553	Hftp proxy tokens are broken	Blocker	.	Daryn Sharp	Daryn Sharp