<!--- # Licensed to the Apache Software Foundation (ASF) under one # or more contributor license agreements. See the NOTICE file # distributed with this work for additional information # regarding copyright ownership. The ASF licenses this file # to you under the Apache License, Version 2.0 (the # "License"); you may not use this file except in compliance # with the License. You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. -->

Apache Hadoop Changelog

Release 1.2.1 - 2013-08-01

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
MAPREDUCE-4838	Add extra info to JH files	Major	.	Arun C Murthy	Zhijie Shen
MAPREDUCE-5368	Save memory by set capacity, load factor and concurrency level for ConcurrentHashMap in TaskInProgress	Major	mrv1	yunjiong zhao	yunjiong zhao

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HDFS-4581	DataNode#checkDiskError should not be called on network errors	Major	datanode	Rohit Kochar	Rohit Kochar
HDFS-4699	TestPipelinesFailover#testPipelineRecoveryStress fails sporadically	Major	test	Chris Nauroth	Chris Nauroth
MAPREDUCE-5206	JT can show the same job multiple times in Retired Jobs section	Minor	.	Arun C Murthy	Arun C Murthy
MAPREDUCE-5148	Syslog missing from Map/Reduce tasks	Major	tasktracker	Yesha Vora	Arun C Murthy
MAPREDUCE-3859	CapacityScheduler incorrectly utilizes extra-resources of queue for high-memory jobs	Major	capacity-sched	Sergey Tryuber	Sergey Tryuber
HDFS-4261	TestBalancerWithNodeGroup times out	Major	balancer & mover	Tsz Wo Nicholas Sze	Junping Du
HDFS-4880	Diagnostic logging while loading name/edits files	Major	namenode	Arpit Agarwal	Suresh Srinivas
MAPREDUCE-5260	Job failed because of JvmManager running into inconsistent state	Major	tasktracker	yunjiong zhao	yunjiong zhao
MAPREDUCE-5318	Ampersand in JSPUtil.java is not escaped	Minor	jobtracker	Bohou Li	Bohou Li
HADOOP-9665	BlockDecompressorStream#decompress will throw EOFException instead of return -1 when EOF	Critical	.	Zhijie Shen	Zhijie Shen
MAPREDUCE-5375	Delegation Token renewal exception in jobtracker logs	Critical	.	Venkat Ranganathan	Venkat Ranganathan
HADOOP-9504	MetricsDynamicMBeanBase has concurrency issues in createMBeanInfo	Critical	metrics	Liang Xie	Liang Xie
MAPREDUCE-5256	CombineInputFormat isn't thread safe affecting HiveServer	Major	.	Vinod Kumar Vavilapalli	Vinod Kumar Vavilapalli
MAPREDUCE-5351	JobTracker memory leak caused by CleanupQueue reopening FileSystem	Critical	jobtracker	Sandy Ryza	Sandy Ryza
MAPREDUCE-5364	Deadlock between RenewalTimerTask methods cancel() and run()	Major	.	Karthik Kambatla	Karthik Kambatla
HADOOP-9730	fix hadoop.spec to add task-log4j.properties	Major	build	Giridharan Kesavan	Giridharan Kesavan
MAPREDUCE-4490	JVM reuse is incompatible with LinuxTaskController (and therefore incompatible with Security)	Critical	task-controller, tasktracker	George Datskos	sam liu

OTHER:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-10371	The eclipse-plugin cannot work in my environment	Minor	contrib/eclipse-plugin	huangxing