<!--- # 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 2.6.3 - 2015-12-17

IMPROVEMENTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-12413	AccessControlList should avoid calling getGroupNames in isUserInList with empty groups.	Major	security	zhihai xu	zhihai xu
HDFS-9434	Recommission a datanode with 500k blocks may pause NN for 30 seconds	Major	namenode	Tsz Wo Nicholas Sze	Tsz Wo Nicholas Sze

BUG FIXES:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-9242	Duplicate surefire plugin config in hadoop-common	Major	test	Andrey Klochkov	Andrey Klochkov
HADOOP-11267	TestSecurityUtil fails when run with JDK8 because of empty principal names	Minor	security, test	Stephen Chu	Stephen Chu
HADOOP-10134	[JDK8] Fix Javadoc errors caused by incorrect or illegal tags in doc comments	Minor	.	Andrew Purtell	Andrew Purtell
MAPREDUCE-6273	HistoryFileManager should check whether summaryFile exists to avoid FileNotFoundException causing HistoryFileInfo into MOVE_FAILED state	Minor	jobhistoryserver	zhihai xu	zhihai xu
MAPREDUCE-6377	JHS sorting on state column not working in webUi	Minor	jobhistoryserver	Bibin A Chundatt	zhihai xu
HDFS-8615	Correct HTTP method in WebHDFS document	Major	documentation	Akira Ajisaka	Brahma Reddy Battula
MAPREDUCE-5948	org.apache.hadoop.mapred.LineRecordReader does not handle multibyte record delimiters well	Critical	.	Kris Geusebroek	Akira Ajisaka
YARN-3878	AsyncDispatcher can hang while stopping if it is configured for draining events on stop	Critical	.	Varun Saxena	Varun Saxena
YARN-3925	ContainerLogsUtils#getContainerLogFile fails to read container log files from full disks.	Critical	nodemanager	zhihai xu	zhihai xu
MAPREDUCE-6481	LineRecordReader may give incomplete record and wrong position/key information for uncompressed input sometimes.	Critical	mrv2	zhihai xu	zhihai xu
HADOOP-12230	hadoop-project declares duplicate, conflicting curator dependencies	Minor	build	Steve Loughran	Rakesh R
HDFS-9273	ACLs on root directory may be lost after NN restart	Critical	namenode	Xiao Chen	Xiao Chen
HDFS-9083	Replication violates block placement policy.	Blocker	namenode	Rushabh S Shah	Rushabh S Shah
YARN-4312	TestSubmitApplicationWithRMHA fails on branch-2.7 and branch-2.6 as some of the test cases time out	Major	.	Varun Saxena	Varun Saxena
YARN-4320	TestJobHistoryEventHandler fails as AHS in MiniYarnCluster no longer binds to default port 8188	Major	.	Varun Saxena	Varun Saxena
MAPREDUCE-6528	Memory leak for HistoryFileManager.getJobSummary()	Critical	jobhistoryserver	Junping Du	Junping Du
YARN-4326	Fix TestDistributedShell timeout as AHS in MiniYarnCluster no longer binds to default port 8188	Major	.	MENG DING	MENG DING
HDFS-9289	Make DataStreamer#block thread safe and verify genStamp in commitBlock	Critical	.	Chang Li	Chang Li
HADOOP-12526	[Branch-2] there are duplicate dependency definitions in pom's	Major	build	Sangjin Lee	Sangjin Lee
YARN-4241	Fix typo of property name in yarn-default.xml	Major	documentation	Anthony Rojas	Anthony Rojas
MAPREDUCE-6540	TestMRTimelineEventHandling fails	Major	test	Sangjin Lee	Sangjin Lee
HDFS-9431	DistributedFileSystem#concat fails if the target path is relative.	Major	hdfs-client	Kazuho Fujii	Kazuho Fujii
YARN-2859	ApplicationHistoryServer binds to default port 8188 in MiniYARNCluster	Critical	timelineserver	Hitesh Shah	Vinod Kumar Vavilapalli
HADOOP-12577	Bump up commons-collections version to 3.2.2 to address a security flaw	Blocker	build, security	Wei-Chiu Chuang	Wei-Chiu Chuang
YARN-4344	NMs reconnecting with changed capabilities can lead to wrong cluster resource calculations	Critical	resourcemanager	Varun Vasudev	Varun Vasudev
MAPREDUCE-5883	"Total megabyte-seconds" in job counters is slightly misleading	Minor	.	Nathan Roberts	Nathan Roberts
YARN-4365	FileSystemNodeLabelStore should check for root dir existence on startup	Major	resourcemanager	Jason Lowe	Kuhu Shukla
MAPREDUCE-6549	multibyte delimiters with LineRecordReader cause duplicate records	Major	mrv1, mrv2	Dustin Cote	Wilfred Spiegelenburg
HDFS-9470	Encryption zone on root not loaded from fsimage after NN restart	Critical	.	Xiao Chen	Xiao Chen
YARN-4348	ZKRMStateStore.syncInternal shouldn't wait for sync completion for avoiding blocking ZK's event thread	Blocker	.	Tsuyoshi Ozawa	Tsuyoshi Ozawa
YARN-4424	Fix deadlock in RMAppImpl	Blocker	.	Yesha Vora	Jian He
YARN-4434	NodeManager Disk Checker parameter documentation is not correct	Minor	documentation, nodemanager	Takashi Ohnishi	Weiwei Yang

TESTS:

JIRA	Summary	Priority	Component	Reporter	Contributor
HADOOP-10668	TestZKFailoverControllerStress#testExpireBackAndForth occasionally fails	Major	test	Ted Yu	Ming Ma