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< h1 > Apache Hadoop Changelog< / h1 > < section >
< h2 > < a name = "Release_1.3.0_-_Unreleased_.28as_of_2018-09-02.29" > < / a > Release 1.3.0 - Unreleased (as of 2018-09-02)< / h2 > < section >
< h3 > < a name = "INCOMPATIBLE_CHANGES:" > < / a > INCOMPATIBLE CHANGES:< / 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/MAPREDUCE-5777" > MAPREDUCE-5777< / a > < / td >
< td align = "left" > Support utf-8 text with BOM (byte order marker) < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > bc Wong < / td >
< td align = "left" > zhihai xu < / td > < / tr >
< / tbody >
< / table > < / section > < 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/MAPREDUCE-2351" > MAPREDUCE-2351< / a > < / td >
< td align = "left" > mapred.job.tracker.history.completed.location should support an arbitrary filesystem URI < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Tom White < / td >
< td align = "left" > Tom White < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9450" > HADOOP-9450< / a > < / td >
< td align = "left" > HADOOP_USER_CLASSPATH_FIRST is not honored; CLASSPATH is PREpended instead of APpended < / td >
< td align = "left" > Major < / td >
< td align = "left" > scripts < / td >
< td align = "left" > Mitch Wyle < / td >
< td align = "left" > Harsh J < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4521" > HDFS-4521< / a > < / td >
< td align = "left" > invalid network topologies should not be cached < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Colin P. McCabe < / td >
< td align = "left" > Colin P. McCabe < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-8873" > HADOOP-8873< / a > < / td >
< td align = "left" > Port HADOOP-8175 (Add mkdir -p flag) to branch-1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Eli Collins < / td >
< td align = "left" > Akira Ajisaka < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4903" > HDFS-4903< / a > < / td >
< td align = "left" > Print trash configuration and trash emptier state in namenode log < / td >
< td align = "left" > Minor < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Suresh Srinivas < / td >
< td align = "left" > Arpit Agarwal < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5406" > MAPREDUCE-5406< / a > < / td >
< td align = "left" > Improve logging around Task Tracker exiting with JVM manager inconsistent state < / td >
< td align = "left" > Major < / td >
< td align = "left" > tasktracker < / td >
< td align = "left" > Chelsey Chang < / td >
< td align = "left" > Chelsey Chang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5408" > MAPREDUCE-5408< / a > < / td >
< td align = "left" > CLONE - The logging level of the tasks should be configurable by the job < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Owen O’ Malley < / td >
< td align = "left" > Arun C Murthy < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5367" > MAPREDUCE-5367< / a > < / td >
< td align = "left" > Local jobs all use same local working directory < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4963" > HDFS-4963< / a > < / td >
< td align = "left" > Improve multihoming support in namenode < / td >
< td align = "left" > Major < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Arpit Agarwal < / td >
< td align = "left" > Arpit Agarwal < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9855" > HADOOP-9855< / a > < / td >
< td align = "left" > Backport HADOOP-6578 to branch-1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > James Kinley < / td >
< td align = "left" > James Kinley < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5038" > HDFS-5038< / a > < / td >
< td align = "left" > Backport several branch-2 APIs to branch-1 < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Jing Zhao < / td >
< td align = "left" > Jing Zhao < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5367" > HDFS-5367< / a > < / td >
< td align = "left" > Restoring namenode storage locks namenode due to unnecessary fsimage write < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > yunjiong zhao < / td >
< td align = "left" > yunjiong zhao < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5457" > MAPREDUCE-5457< / a > < / td >
< td align = "left" > Add a KeyOnlyTextOutputReader to enable streaming to write out text files without separators < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5609" > MAPREDUCE-5609< / a > < / td >
< td align = "left" > Add debug log message when sending job end notification < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Robert Kanter < / td >
< td align = "left" > Robert Kanter < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-3310" > MAPREDUCE-3310< / a > < / td >
< td align = "left" > Custom grouping comparator cannot be set for Combiners < / td >
< td align = "left" > Major < / td >
< td align = "left" > client < / td >
< td align = "left" > Mathias Herberts < / td >
< td align = "left" > Alejandro Abdelnur < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5651" > MAPREDUCE-5651< / a > < / td >
< td align = "left" > Backport Fair Scheduler queue placement policies to branch-1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > scheduler < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Ted Malaska < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5712" > MAPREDUCE-5712< / a > < / td >
< td align = "left" > Backport Fair Scheduler pool placement by secondary group < / td >
< td align = "left" > Major < / td >
< td align = "left" > scheduler < / td >
< td align = "left" > Theodore michael Malaska < / td >
< td align = "left" > Theodore michael Malaska < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10614" > HADOOP-10614< / a > < / td >
< td align = "left" > CBZip2InputStream is not threadsafe < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Xiangrui Meng < / td >
< td align = "left" > Xiangrui Meng < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6088" > MAPREDUCE-6088< / a > < / td >
< td align = "left" > TestTokenCache tests should use their own JobConf instances < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1, test < / 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-7312" > HDFS-7312< / a > < / td >
< td align = "left" > Update DistCp v1 to optionally not use tmp location (branch-1 only) < / td >
< td align = "left" > Minor < / td >
< td align = "left" > tools < / td >
< td align = "left" > Joseph Prosser < / td >
< td align = "left" > Joseph Prosser < / 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-7140" > HADOOP-7140< / a > < / td >
< td align = "left" > IPC Reader threads do not stop when server stops < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Todd Lipcon < / td >
< td align = "left" > Todd Lipcon < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-2264" > HDFS-2264< / a > < / td >
< td align = "left" > NamenodeProtocol has the wrong value for clientPrincipal in KerberosInfo annotation < / td >
< td align = "left" > Major < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Aaron T. Myers < / td >
< td align = "left" > Aaron T. Myers < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5046" > MAPREDUCE-5046< / a > < / td >
< td align = "left" > backport MAPREDUCE-1423 to mapred.lib.CombineFileInputFormat < / td >
< td align = "left" > Major < / td >
< td align = "left" > client < / td >
< td align = "left" > Sangjin Lee < / td >
< td align = "left" > < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5047" > MAPREDUCE-5047< / a > < / td >
< td align = "left" > keep.failed.task.files=true causes job failure on secure clusters < / td >
< td align = "left" > Major < / td >
< td align = "left" > task, tasktracker < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5070" > MAPREDUCE-5070< / a > < / td >
< td align = "left" > TestClusterStatus.testClusterMetrics fails on JDK7 < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5072" > MAPREDUCE-5072< / a > < / td >
< td align = "left" > TestDelegationTokenRenewal.testDTRenewal fails in MR1 on jdk7 < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5073" > MAPREDUCE-5073< / a > < / td >
< td align = "left" > TestJobStatusPersistency.testPersistency fails on JDK7 < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4622" > HDFS-4622< / a > < / td >
< td align = "left" > Remove redundant synchronized from FSNamesystem#rollEditLog in branch-1 < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > . < / td >
< td align = "left" > Jing Zhao < / td >
< td align = "left" > Jing Zhao < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-2817" > MAPREDUCE-2817< / a > < / td >
< td align = "left" > MiniRMCluster hardcodes ‘ mapred.local.dir’ configuration to ‘ build/test/mapred/local’ < / td >
< td align = "left" > Minor < / td >
< td align = "left" > test < / td >
< td align = "left" > Alejandro Abdelnur < / td >
< td align = "left" > Robert Kanter < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5133" > MAPREDUCE-5133< / a > < / td >
< td align = "left" > TestSubmitJob.testSecureJobExecution is flaky due to job dir deletion race < / td >
< td align = "left" > Major < / td >
< td align = "left" > test < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5218" > MAPREDUCE-5218< / a > < / td >
< td align = "left" > Annotate (comment) internal classes as Private < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Karthik Kambatla < / td >
< td align = "left" > Karthik Kambatla < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5217" > MAPREDUCE-5217< / a > < / td >
< td align = "left" > DistCp fails when launched by Oozie in a secure cluster < / td >
< td align = "left" > Major < / td >
< td align = "left" > distcp, security < / td >
< td align = "left" > Venkat Ranganathan < / td >
< td align = "left" > Venkat Ranganathan < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5095" > MAPREDUCE-5095< / a > < / td >
< td align = "left" > TestShuffleExceptionCount#testCheckException fails occasionally with JDK7 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Arpit Agarwal < / td >
< td align = "left" > Arpit Agarwal < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5250" > MAPREDUCE-5250< / a > < / td >
< td align = "left" > Searching for ‘ ;’ in JobTracker History throws ArrayOutOfBoundException < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Karthik Kambatla < / td >
< td align = "left" > Karthik Kambatla < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4944" > HDFS-4944< / a > < / td >
< td align = "left" > WebHDFS cannot create a file path containing characters that must be URI-encoded, such as space. < / td >
< td align = "left" > Major < / td >
< td align = "left" > webhdfs < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9678" > HADOOP-9678< / a > < / td >
< td align = "left" > TestRPC#testStopsAllThreads intermittently fails on Windows < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Ivan Mitic < / td >
< td align = "left" > Ivan Mitic < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9307" > HADOOP-9307< / a > < / td >
< td align = "left" > BufferedFSInputStream.read returns wrong results after certain seeks < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs < / td >
< td align = "left" > Todd Lipcon < / td >
< td align = "left" > Todd Lipcon < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5003" > HDFS-5003< / a > < / td >
< td align = "left" > TestNNThroughputBenchmark failed caused by existing directories < / td >
< td align = "left" > Minor < / td >
< td align = "left" > test < / td >
< td align = "left" > Xi Fang < / td >
< td align = "left" > Xi Fang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5405" > MAPREDUCE-5405< / a > < / td >
< td align = "left" > Job recovery can fail if task log directory symlink from prior run still exists < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1 < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5288" > MAPREDUCE-5288< / a > < / td >
< td align = "left" > ResourceEstimator#getEstimatedTotalMapOutputSize suffers from divide by zero issues < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1 < / td >
< td align = "left" > Harsh J < / td >
< td align = "left" > Karthik Kambatla < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9507" > HADOOP-9507< / a > < / td >
< td align = "left" > LocalFileSystem rename() is broken in some cases when destination exists < / td >
< td align = "left" > Minor < / td >
< td align = "left" > fs < / td >
< td align = "left" > Mostafa Elhemali < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-4366" > MAPREDUCE-4366< / a > < / td >
< td align = "left" > mapred metrics shows negative count of waiting maps and reduces < / td >
< td align = "left" > Major < / td >
< td align = "left" > jobtracker < / td >
< td align = "left" > Thomas Graves < / td >
< td align = "left" > Sandy Ryza < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9768" > HADOOP-9768< / a > < / td >
< td align = "left" > chown and chgrp reject users and groups with spaces on platforms where spaces are otherwise acceptable < / td >
< td align = "left" > Major < / td >
< td align = "left" > fs < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9801" > HADOOP-9801< / a > < / td >
< td align = "left" > Configuration#writeXml uses platform defaulting encoding, which may mishandle multi-byte characters. < / td >
< td align = "left" > Major < / td >
< td align = "left" > conf < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4898" > HDFS-4898< / a > < / td >
< td align = "left" > BlockPlacementPolicyWithNodeGroup.chooseRemoteRack() fails to properly fallback to local rack < / td >
< td align = "left" > Minor < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Eric Sirianni < / td >
< td align = "left" > Tsz Wo Nicholas Sze < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5211" > HDFS-5211< / a > < / td >
< td align = "left" > Race condition between DistributedFileSystem#close and FileSystem#close can cause return of a closed DistributedFileSystem instance from the FileSystem cache. < / td >
< td align = "left" > Major < / td >
< td align = "left" > hdfs-client < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5508" > MAPREDUCE-5508< / a > < / td >
< td align = "left" > JobTracker memory leak caused by unreleased FileSystem objects in JobInProgress#cleanupJob < / td >
< td align = "left" > Critical < / td >
< td align = "left" > jobtracker < / td >
< td align = "left" > Xi Fang < / td >
< td align = "left" > Xi Fang < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5245" > HDFS-5245< / a > < / td >
< td align = "left" > shouldRetry() in WebHDFSFileSystem generates excessive warnings < / td >
< td align = "left" > Minor < / td >
< td align = "left" > webhdfs < / td >
< td align = "left" > Haohui Mai < / td >
< td align = "left" > Haohui Mai < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10009" > HADOOP-10009< / a > < / td >
< td align = "left" > Backport HADOOP-7808 to branch-1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Haohui Mai < / td >
< td align = "left" > Haohui Mai < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5569" > MAPREDUCE-5569< / a > < / td >
< td align = "left" > FloatSplitter is not generating correct splits < / td >
< td align = "left" > Major < / 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/MAPREDUCE-5512" > MAPREDUCE-5512< / a > < / td >
< td align = "left" > TaskTracker hung after failed reconnect to the JobTracker < / td >
< td align = "left" > Major < / td >
< td align = "left" > tasktracker < / td >
< td align = "left" > Ivan Mitic < / td >
< td align = "left" > Ivan Mitic < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-4794" > HDFS-4794< / a > < / td >
< td align = "left" > Browsing filesystem via webui throws kerberos exception when NN service RPC is enabled in a secure cluster < / td >
< td align = "left" > Major < / td >
< td align = "left" > security < / td >
< td align = "left" > Benoy Antony < / td >
< td align = "left" > Benoy Antony < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10142" > HADOOP-10142< / a > < / td >
< td align = "left" > Avoid groups lookup for unprivileged users such as “ dr.who” < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Vinayakumar B < / td >
< td align = "left" > Vinayakumar B < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10090" > HADOOP-10090< / a > < / td >
< td align = "left" > Jobtracker metrics not updated properly after execution of a mapreduce job < / td >
< td align = "left" > Major < / td >
< td align = "left" > metrics < / td >
< td align = "left" > Ivan Mitic < / td >
< td align = "left" > Ivan Mitic < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5702" > MAPREDUCE-5702< / a > < / td >
< td align = "left" > TaskLogServlet#printTaskLog has spurious HTML closing tags < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > task < / td >
< td align = "left" > Karthik Kambatla < / td >
< td align = "left" > Robert Kanter < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5698" > MAPREDUCE-5698< / a > < / td >
< td align = "left" > Backport MAPREDUCE-1285 to branch-1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Yongjun Zhang < / td >
< td align = "left" > Yongjun Zhang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5685" > HDFS-5685< / a > < / td >
< td align = "left" > DistCp will fail to copy with -delete switch < / td >
< td align = "left" > Major < / td >
< td align = "left" > hdfs-client < / td >
< td align = "left" > Yongjun Zhang < / td >
< td align = "left" > Yongjun Zhang < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5710" > MAPREDUCE-5710< / a > < / td >
< td align = "left" > Backport MAPREDUCE-1305 to branch-1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Yongjun Zhang < / td >
< td align = "left" > Yongjun Zhang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5944" > HDFS-5944< / a > < / td >
< td align = "left" > LeaseManager:findLeaseWithPrefixPath can’ t handle path like /a/b/ right and cause SecondaryNameNode failed do checkpoint < / td >
< td align = "left" > Major < / td >
< td align = "left" > namenode < / td >
< td align = "left" > yunjiong zhao < / td >
< td align = "left" > yunjiong zhao < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-5516" > HDFS-5516< / a > < / td >
< td align = "left" > WebHDFS does not require user name when anonymous http requests are disallowed. < / td >
< td align = "left" > Major < / td >
< td align = "left" > webhdfs < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Miodrag Radulovic < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5808" > MAPREDUCE-5808< / a > < / td >
< td align = "left" > Port output replication factor configurable for terasort to Hadoop 1.x < / td >
< td align = "left" > Minor < / td >
< td align = "left" > examples < / td >
< td align = "left" > Chuan Liu < / td >
< td align = "left" > Chuan Liu < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5822" > MAPREDUCE-5822< / a > < / td >
< td align = "left" > FairScheduler does not preempt due to fairshare-starvation when fairshare is 1 < / td >
< td align = "left" > Major < / td >
< td align = "left" > scheduler < / td >
< td align = "left" > Anubhav Dhoot < / td >
< td align = "left" > Anubhav Dhoot < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-6141" > HDFS-6141< / a > < / td >
< td align = "left" > WebHdfsFileSystem#toUrl does not perform character escaping. < / td >
< td align = "left" > Major < / td >
< td align = "left" > webhdfs < / td >
< td align = "left" > Chris Nauroth < / td >
< td align = "left" > Chris Nauroth < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-10562" > HADOOP-10562< / a > < / td >
< td align = "left" > Namenode exits on exception without printing stack trace in AbstractDelegationTokenSecretManager < / td >
< td align = "left" > Critical < / td >
< td align = "left" > . < / td >
< td align = "left" > Suresh Srinivas < / td >
< td align = "left" > Suresh Srinivas < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5877" > MAPREDUCE-5877< / a > < / td >
< td align = "left" > Inconsistency between JT/TT for tasks taking a long time to launch < / td >
< td align = "left" > Critical < / td >
< td align = "left" > jobtracker, tasktracker < / td >
< td align = "left" > Karthik Kambatla < / td >
< td align = "left" > Karthik Kambatla < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5979" > MAPREDUCE-5979< / a > < / td >
< td align = "left" > FairScheduler: zero weight can cause sort failures < / td >
< td align = "left" > Major < / td >
< td align = "left" > scheduler < / td >
< td align = "left" > Anubhav Dhoot < / td >
< td align = "left" > Anubhav Dhoot < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5966" > MAPREDUCE-5966< / a > < / td >
< td align = "left" > MR1 FairScheduler use of custom weight adjuster is not thread safe for comparisons < / td >
< td align = "left" > Major < / td >
< td align = "left" > scheduler < / td >
< td align = "left" > Anubhav Dhoot < / td >
< td align = "left" > Anubhav Dhoot < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5968" > MAPREDUCE-5968< / a > < / td >
< td align = "left" > Work directory is not deleted when downloadCacheObject throws IOException < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1 < / 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/HDFS-6822" > HDFS-6822< / a > < / td >
< td align = "left" > In branch-1, Namenode and datanode fails to replace “ _HOST” to hostname for hadoop.http.authentication.kerberos.principal < / td >
< td align = "left" > Major < / td >
< td align = "left" > security < / td >
< td align = "left" > Jing Zhao < / td >
< td align = "left" > Jing Zhao < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6012" > MAPREDUCE-6012< / a > < / td >
< td align = "left" > DBInputSplit creates invalid ranges on Oracle < / td >
< td align = "left" > Major < / td >
< td align = "left" > . < / td >
< td align = "left" > Julien Serdaru < / td >
< td align = "left" > Wei Yan < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-11035" > HADOOP-11035< / a > < / td >
< td align = "left" > distcp on mr1(branch-1) fails with NPE using a short relative source path. < / td >
< td align = "left" > Major < / td >
< td align = "left" > tools < / 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-6009" > MAPREDUCE-6009< / a > < / td >
< td align = "left" > Map-only job with new-api runs wrong OutputCommitter when cleanup scheduled in a reduce slot < / td >
< td align = "left" > Blocker < / td >
< td align = "left" > client, job submission < / td >
< td align = "left" > Gera Shegalov < / td >
< td align = "left" > Gera Shegalov < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6147" > MAPREDUCE-6147< / a > < / td >
< td align = "left" > Support mapreduce.input.fileinputformat.split.maxsize < / td >
< td align = "left" > Minor < / td >
< td align = "left" > mrv1 < / 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-6170" > MAPREDUCE-6170< / a > < / td >
< td align = "left" > TestUlimit failure on JDK8 < / td >
< td align = "left" > Major < / td >
< td align = "left" > contrib/streaming < / td >
< td align = "left" > bc Wong < / td >
< td align = "left" > bc Wong < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-7503" > HDFS-7503< / a > < / td >
< td align = "left" > Namenode restart after large deletions can cause slow processReport (due to logging) < / td >
< td align = "left" > Major < / td >
< td align = "left" > namenode < / td >
< td align = "left" > Arpit Agarwal < / td >
< td align = "left" > Arpit Agarwal < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6196" > MAPREDUCE-6196< / a > < / td >
< td align = "left" > Fix BigDecimal ArithmeticException in PiEstimator < / td >
< td align = "left" > Minor < / td >
< td align = "left" > . < / td >
< td align = "left" > Ray Chiang < / td >
< td align = "left" > Ray Chiang < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6198" > MAPREDUCE-6198< / a > < / td >
< td align = "left" > NPE from JobTracker#resolveAndAddToTopology in MR1 cause initJob and heartbeat failure. < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1 < / 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-5272" > MAPREDUCE-5272< / a > < / td >
< td align = "left" > A Minor Error in Javadoc of TestMRWithDistributedCache in Branch-1 < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > test < / td >
< td align = "left" > Zhijie Shen < / td >
< td align = "left" > Zhijie Shen < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5556" > MAPREDUCE-5556< / a > < / td >
< td align = "left" > mapred docs have incorrect classpath < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > . < / td >
< td align = "left" > Allen Wittenauer < / td >
< td align = "left" > Harsh J < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5660" > MAPREDUCE-5660< / a > < / td >
< td align = "left" > Log info about possible thrashing (when using memory-based scheduling in Capacity Scheduler) is not printed < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > capacity-sched, mrv1, tasktracker < / td >
< td align = "left" > Adam Kawa < / td >
< td align = "left" > Adam Kawa < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-5183" > MAPREDUCE-5183< / a > < / td >
< td align = "left" > In, TaskTracker#reportProgress logging of 0.0-1.0 progress is followed by percent sign < / td >
< td align = "left" > Minor < / td >
< td align = "left" > mrv1, tasktracker < / td >
< td align = "left" > Sandy Ryza < / td >
< td align = "left" > Niranjan Singh < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HDFS-6649" > HDFS-6649< / a > < / td >
< td align = "left" > Documentation for setrep is wrong < / td >
< td align = "left" > Trivial < / td >
< td align = "left" > documentation < / td >
< td align = "left" > Alexander Fahlke < / td >
< td align = "left" > Akira Ajisaka < / td > < / tr >
< tr class = "b" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/MAPREDUCE-6076" > MAPREDUCE-6076< / a > < / td >
< td align = "left" > Zero map split input length combine with none zero map split input length may cause MR1 job hung sometimes. < / td >
< td align = "left" > Major < / td >
< td align = "left" > mrv1 < / td >
< td align = "left" > zhihai xu < / td >
< td align = "left" > zhihai xu < / td > < / tr >
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< 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-9624" > HADOOP-9624< / a > < / td >
< td align = "left" > TestFSMainOperationsLocalFileSystem failed when the Hadoop test root path has “ X” in its name < / td >
< td align = "left" > Minor < / td >
< td align = "left" > test < / td >
< td align = "left" > Xi Fang < / td >
< td align = "left" > Xi Fang < / td > < / tr >
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< 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/MAPREDUCE-4049" > MAPREDUCE-4049< / a > < / td >
< td align = "left" > plugin for generic shuffle service < / td >
< td align = "left" > Major < / td >
< td align = "left" > performance, task, tasktracker < / td >
< td align = "left" > Avner BenHanoch < / td >
< td align = "left" > Avner BenHanoch < / td > < / tr >
< tr class = "a" >
< td align = "left" > < a class = "externalLink" href = "https://issues.apache.org/jira/browse/HADOOP-9573" > HADOOP-9573< / a > < / td >
< td align = "left" > Fix test-patch script to work with the enhanced PreCommit-Admin script. < / td >
< td align = "left" > Major < / td >
< td align = "left" > build < / td >
< td align = "left" > Giridharan Kesavan < / td >
< td align = "left" > Giridharan Kesavan < / td > < / tr >
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