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< h1 > Apache Hadoop Changelog< / h1 > < section >
< h2 > < a name = "Release_2.6.3_-_2015-12-17" > < / a > Release 2.6.3 - 2015-12-17< / h2 > < section >
< h3 > < a name = "IMPROVEMENTS:" > < / a > IMPROVEMENTS:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-12413" > HADOOP-12413< / a > < / td >
< td align = "left" > AccessControlList should avoid calling getGroupNames in isUserInList with empty groups. < / td >
< td align = "left" > Major < / td >
< td align = "left" > security < / td >
< td align = "left" > zhihai xu < / td >
< td align = "left" > zhihai xu < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-9434" > HDFS-9434< / a > < / td >
< td align = "left" > Recommission a datanode with 500k blocks may pause NN for 30 seconds < / td >
< td align = "left" > Major < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Tsz Wo Nicholas Sze < / td >
< td align = "left" > Tsz Wo Nicholas Sze < / td > < / tr >
< / tbody >
< / table > < / section > < section >
< h3 > < a name = "BUG_FIXES:" > < / a > BUG FIXES:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9242" > HADOOP-9242< / a > < / td >
< td align = "left" > Duplicate surefire plugin config in hadoop-common < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Andrey Klochkov < / td >
< td align = "left" > Andrey Klochkov < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-11267" > HADOOP-11267< / a > < / td >
< td align = "left" > TestSecurityUtil fails when run with JDK8 because of empty principal names < / td >
< td align = "left" > Minor < / td >
< td align = "left" > security, test < / td >
< td align = "left" > Stephen Chu < / td >
< td align = "left" > Stephen Chu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10134" > HADOOP-10134< / a > < / td >
< td align = "left" > [JDK8] Fix Javadoc errors caused by incorrect or illegal tags in doc comments < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Andrew Purtell < / td >
< td align = "left" > Andrew Purtell < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6273" > MAPREDUCE-6273< / a > < / td >
< td align = "left" > HistoryFileManager should check whether summaryFile exists to avoid FileNotFoundException causing HistoryFileInfo into MOVE_FAILED state < / td >
< td align = "left" > Minor < / td >
< td align = "left" > jobhistoryserver < / td >
< td align = "left" > zhihai xu < / td >
< td align = "left" > zhihai xu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6377" > MAPREDUCE-6377< / a > < / td >
< td align = "left" > JHS sorting on state column not working in webUi < / td >
< td align = "left" > Minor < / td >
< td align = "left" > jobhistoryserver < / td >
< td align = "left" > Bibin A Chundatt < / td >
< td align = "left" > zhihai xu < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-8615" > HDFS-8615< / a > < / td >
< td align = "left" > Correct HTTP method in WebHDFS document < / td >
< td align = "left" > Major < / td >
< td align = "left" > documentation < / td >
< td align = "left" > Akira Ajisaka < / td >
< td align = "left" > Brahma Reddy Battula < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5948" > MAPREDUCE-5948< / a > < / td >
< td align = "left" > org.apache.hadoop.mapred.LineRecordReader does not handle multibyte record delimiters well < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Kris Geusebroek < / td >
< td align = "left" > Akira Ajisaka < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-3878" > YARN-3878< / a > < / td >
< td align = "left" > AsyncDispatcher can hang while stopping if it is configured for draining events on stop < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Varun Saxena < / td >
< td align = "left" > Varun Saxena < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-3925" > YARN-3925< / a > < / td >
< td align = "left" > ContainerLogsUtils#getContainerLogFile fails to read container log files from full disks. < / td >
< td align = "left" > Critical < / td >
< td align = "left" > nodemanager < / td >
< td align = "left" > zhihai xu < / td >
< td align = "left" > zhihai xu < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6481" > MAPREDUCE-6481< / a > < / td >
< td align = "left" > LineRecordReader may give incomplete record and wrong position/key information for uncompressed input sometimes. < / td >
< td align = "left" > Critical < / td >
< td align = "left" > mrv2 < / td >
< td align = "left" > zhihai xu < / td >
< td align = "left" > zhihai xu < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-12230" > HADOOP-12230< / a > < / td >
< td align = "left" > hadoop-project declares duplicate, conflicting curator dependencies < / td >
< td align = "left" > Minor < / td >
< td align = "left" > build < / td >
< td align = "left" > Steve Loughran < / td >
< td align = "left" > Rakesh R < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-9273" > HDFS-9273< / a > < / td >
< td align = "left" > ACLs on root directory may be lost after NN restart < / td >
< td align = "left" > Critical < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Xiao Chen < / td >
< td align = "left" > Xiao Chen < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-9083" > HDFS-9083< / a > < / td >
< td align = "left" > Replication violates block placement policy. < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Rushabh S Shah < / td >
< td align = "left" > Rushabh S Shah < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4312" > YARN-4312< / a > < / td >
< td align = "left" > TestSubmitApplicationWithRMHA fails on branch-2.7 and branch-2.6 as some of the test cases time out < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Varun Saxena < / td >
< td align = "left" > Varun Saxena < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4320" > YARN-4320< / a > < / td >
< td align = "left" > TestJobHistoryEventHandler fails as AHS in MiniYarnCluster no longer binds to default port 8188 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Varun Saxena < / td >
< td align = "left" > Varun Saxena < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6528" > MAPREDUCE-6528< / a > < / td >
< td align = "left" > Memory leak for HistoryFileManager.getJobSummary() < / td >
< td align = "left" > Critical < / td >
< td align = "left" > jobhistoryserver < / td >
< td align = "left" > Junping Du < / td >
< td align = "left" > Junping Du < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4326" > YARN-4326< / a > < / td >
< td align = "left" > Fix TestDistributedShell timeout as AHS in MiniYarnCluster no longer binds to default port 8188 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > MENG DING < / td >
< td align = "left" > MENG DING < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-9289" > HDFS-9289< / a > < / td >
< td align = "left" > Make DataStreamer#block thread safe and verify genStamp in commitBlock < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Chang Li < / td >
< td align = "left" > Chang Li < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-12526" > HADOOP-12526< / a > < / td >
< td align = "left" > [Branch-2] there are duplicate dependency definitions in pom’ s < / td >
< td align = "left" > Major < / td >
< td align = "left" > build < / td >
< td align = "left" > Sangjin Lee < / td >
< td align = "left" > Sangjin Lee < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4241" > YARN-4241< / a > < / td >
< td align = "left" > Fix typo of property name in yarn-default.xml < / td >
< td align = "left" > Major < / td >
< td align = "left" > documentation < / td >
< td align = "left" > Anthony Rojas < / td >
< td align = "left" > Anthony Rojas < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6540" > MAPREDUCE-6540< / a > < / td >
< td align = "left" > TestMRTimelineEventHandling fails < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Sangjin Lee < / td >
< td align = "left" > Sangjin Lee < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-9431" > HDFS-9431< / a > < / td >
< td align = "left" > DistributedFileSystem#concat fails if the target path is relative. < / td >
< td align = "left" > Major < / td >
< td align = "left" > hdfs-client < / td >
< td align = "left" > Kazuho Fujii < / td >
< td align = "left" > Kazuho Fujii < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-2859" > YARN-2859< / a > < / td >
< td align = "left" > ApplicationHistoryServer binds to default port 8188 in MiniYARNCluster < / td >
< td align = "left" > Critical < / td >
< td align = "left" > timelineserver < / td >
< td align = "left" > Hitesh Shah < / td >
< td align = "left" > Vinod Kumar Vavilapalli < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-12577" > HADOOP-12577< / a > < / td >
< td align = "left" > Bump up commons-collections version to 3.2.2 to address a security flaw < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > build, security < / td >
< td align = "left" > Wei-Chiu Chuang < / td >
< td align = "left" > Wei-Chiu Chuang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4344" > YARN-4344< / a > < / td >
< td align = "left" > NMs reconnecting with changed capabilities can lead to wrong cluster resource calculations < / td >
< td align = "left" > Critical < / td >
< td align = "left" > resourcemanager < / td >
< td align = "left" > Varun Vasudev < / td >
< td align = "left" > Varun Vasudev < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5883" > MAPREDUCE-5883< / a > < / td >
< td align = "left" > “ Total megabyte-seconds” in job counters is slightly misleading < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Nathan Roberts < / td >
< td align = "left" > Nathan Roberts < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4365" > YARN-4365< / a > < / td >
< td align = "left" > FileSystemNodeLabelStore should check for root dir existence on startup < / td >
< td align = "left" > Major < / td >
< td align = "left" > resourcemanager < / td >
< td align = "left" > Jason Lowe < / td >
< td align = "left" > Kuhu Shukla < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6549" > MAPREDUCE-6549< / a > < / td >
< td align = "left" > multibyte delimiters with LineRecordReader cause duplicate records < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1, mrv2 < / td >
< td align = "left" > Dustin Cote < / td >
< td align = "left" > Wilfred Spiegelenburg < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-9470" > HDFS-9470< / a > < / td >
< td align = "left" > Encryption zone on root not loaded from fsimage after NN restart < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Xiao Chen < / td >
< td align = "left" > Xiao Chen < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4348" > YARN-4348< / a > < / td >
< td align = "left" > ZKRMStateStore.syncInternal shouldn’ t wait for sync completion for avoiding blocking ZK’ s event thread < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Tsuyoshi Ozawa < / td >
< td align = "left" > Tsuyoshi Ozawa < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4424" > YARN-4424< / a > < / td >
< td align = "left" > Fix deadlock in RMAppImpl < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > . < / td >
< td align = "left" > Yesha Vora < / td >
< td align = "left" > Jian He < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/YARN-4434" > YARN-4434< / a > < / td >
< td align = "left" > NodeManager Disk Checker parameter documentation is not correct < / td >
< td align = "left" > Minor < / td >
< td align = "left" > documentation, nodemanager < / td >
< td align = "left" > Takashi Ohnishi < / td >
< td align = "left" > Weiwei Yang < / td > < / tr >
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< h3 > < a name = "TESTS:" > < / a > TESTS:< / h3 >
< table border = "0" class = "bodyTable" >
< thead >
< tr class = "a" >
< th align = "left" > JIRA < / th >
< th align = "left" > Summary < / th >
< th align = "left" > Priority < / th >
< th align = "left" > Component < / th >
< th align = "left" > Reporter < / th >
< th align = "left" > Contributor < / th > < / tr >
< / thead > < tbody >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10668" > HADOOP-10668< / a > < / td >
< td align = "left" > TestZKFailoverControllerStress#testExpireBackAndForth occasionally fails < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Ted Yu < / td >
< td align = "left" > Ming Ma < / td > < / tr >
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