Apache Hadoop Changelog

Release 0.20.203.0 - 2011-05-11

INCOMPATIBLE CHANGES:

JIRA	Summary	Priority	Component	Reporter	Contributor

IMPORTANT ISSUES:

JIRA	Summary	Priority	Component	Reporter	Contributor

NEW FEATURES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-7108	hadoop-0.20.100	Major	.	Arun C Murthy	Arun C Murthy
HADOOP-4343	Adding user and service-to-service authentication to Hadoop	Blocker	.	Kan Zhang	Kan Zhang

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-7247	Fix documentation to reflect new jar names	Major	.	Owen O'Malley	Owen O'Malley
HDFS-1626	Make BLOCK_INVALIDATE_LIMIT configurable	Minor	namenode	Arun C Murthy	Tsz Wo Nicholas Sze
HDFS-457	better handling of volume failure in Data Node storage	Major	datanode	Boris Shkolnik	Boris Shkolnik
MAPREDUCE-2355	Add an out of band heartbeat damper	Major	jobtracker	Owen O'Malley	Arun C Murthy
MAPREDUCE-2316	Update docs for CapacityScheduler	Major	capacity-sched, documentation	Arun C Murthy	Arun C Murthy
MAPREDUCE-1943	Implement limits on per-job JobConf, Counters, StatusReport, Split-Sizes	Major	.	Mahadev konar	Mahadev konar
MAPREDUCE-478	separate jvm param for mapper and reducer	Minor	.	Koji Noguchi	Arun C Murthy

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-7259	contrib modules should include build.properties from parent.	Major	build	Owen O'Malley	Owen O'Malley
HADOOP-7258	Gzip codec should not return null decompressors	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-7253	Fix default config	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-7246	The default log4j configuration causes warnings about EventCounter	Major	.	Owen O'Malley	Luke Lu
HADOOP-7243	Fix contrib unit tests (fairshare, hdfsproxy, datajoin, streaming)	Major	.	Owen O'Malley	Owen O'Malley
HADOOP-7232	Fix javadoc warnings	Blocker	documentation	Owen O'Malley	Owen O'Malley
HADOOP-7215	RPC clients must connect over a network interface corresponding to the host name in the client's kerberos principal key	Blocker	security	Suresh Srinivas	Suresh Srinivas
HADOOP-7190	Put metrics v1 back into the hadoop-20-security branch	Major	metrics	Owen O'Malley	Owen O'Malley
HADOOP-7163	“java.net.SocketTimeoutException: 60000 millis timeout” happens a lot	Major	ipc	Owen O'Malley	Devaraj Das
HADOOP-7143	Hive Hadoop20SShims depends on removed HadoopArchives	Major	fs	Joep Rottinghuis	Joep Rottinghuis
HADOOP-7040	DiskChecker:mkdirsWithExistsCheck swallows FileNotFoundException.	Major	.	Boris Shkolnik	Boris Shkolnik
HADOOP-6907	Rpc client doesn‘t use the per-connection conf to figure out server’s Kerberos principal	Major	ipc, security	Kan Zhang	Kan Zhang
HADOOP-5647	TestJobHistory fails if /tmp/_logs is not writable to. Testcase should not depend on /tmp	Major	test	Ravi Gummadi	Ravi Gummadi
HDFS-1822	Editlog opcodes overlap between 20 security and later releases	Blocker	namenode	Suresh Srinivas	Suresh Srinivas
HDFS-1022	Merge under-10-min tests specs into one file	Major	test	Erik Steffl	Erik Steffl
MAPREDUCE-2365	Add counters for FileInputFormat (BYTES_READ) and FileOutputFormat (BYTES_WRITTEN)	Major	.	Owen O'Malley	Siddharth Seth
MAPREDUCE-2278	DistributedCache shouldn't hold a ref to JobConf	Major	distributed-cache, tasktracker	Arun C Murthy	Chris Douglas
MAPREDUCE-1699	JobHistory shouldn't be disabled for any reason	Major	jobtracker	Arun C Murthy	Krishna Ramachandran
MAPREDUCE-1280	Eclipse Plugin does not work with Eclipse Ganymede (3.4)	Major	.	Aaron Kimball	Alex Kozlov
MAPREDUCE-1233	Incorrect Waiting maps/reduces in Jobtracker metrics	Major	jobtracker	V.Karthikeyan	Luke Lu
MAPREDUCE-1118	Capacity Scheduler scheduling information is hard to read / should be tabular format	Major	capacity-sched	Allen Wittenauer	Krishna Ramachandran
MAPREDUCE-323	Improve the way job history files are managed	Critical	jobtracker	Amar Kamat	Dick King

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor

SUB-TASKS:

JIRA	Summary	Priority	Component	Reporter	Contributor

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor