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[MAPREDUCE-5819] Binary token merge should be done once in TokenCache#obtainTokensForNamenodesInternal() - MapReduce - [issue]
...Currently mergeBinaryTokens() is called by every invocation of obtainTokensForNamenodesInternal(FileSystem, Credentials, Configuration) in the loop of obtainTokensForNamenodesInternal(Creden...
http://issues.apache.org/jira/browse/MAPREDUCE-5819    Author: Ted Yu, 2014-05-11, 16:01
[MAPREDUCE-5865] RecordReader is not closed in TeraInputFormat#writePartitionFile() - MapReduce - [issue]
...Here is related code:            RecordReader<Text, Text> reader =               inFormat.createRecordReader(...
http://issues.apache.org/jira/browse/MAPREDUCE-5865    Author: Ted Yu, 2014-05-11, 15:27
[MAPREDUCE-5816] TestMRAppMaster fails in trunk - MapReduce - [issue]
...As can be seen from https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1741/console:Tests in error:   TestMRAppMaster.testMRAppMasterMidLock:163 ยป NullPointer  TestMRAp...
http://issues.apache.org/jira/browse/MAPREDUCE-5816    Author: Ted Yu, 2014-03-31, 00:24
[MAPREDUCE-5748] Potential null pointer deference in ShuffleHandler#Shuffle#messageReceived() - MapReduce - [issue]
...Starting around line 510:      ChannelFuture lastMap = null;      for (String mapId : mapIds) {...      }      ...
http://issues.apache.org/jira/browse/MAPREDUCE-5748    Author: Ted Yu, 2014-03-21, 01:52
[MAPREDUCE-5753] finishedStatus is accessed without proper locking in RMContainerImpl#FinishedTransition#transition() - MapReduce - [issue]
...      container.finishedStatus = finishedEvent.getRemoteContainerStatus();The access should be guarded by obtaining readLock...
http://issues.apache.org/jira/browse/MAPREDUCE-5753    Author: Ted Yu, 2014-02-11, 21:40
[MAPREDUCE-5752] Potential invalid iterator in NMClientImpl#cleanupRunningContainers() - MapReduce - [issue]
...In cleanupRunningContainers() :    for (StartedContainer startedContainer : startedContainers.values()) {      try {        stopCo...
http://issues.apache.org/jira/browse/MAPREDUCE-5752    Author: Ted Yu, 2014-02-11, 21:12
[MAPREDUCE-5747] Potential null pointer deference in HsTasksBlock#render() - MapReduce - [issue]
...At line 140:        } else {          ta = new TaskAttemptInfo(successful, type, false);There is no check for type against null.TaskAtt...
http://issues.apache.org/jira/browse/MAPREDUCE-5747    Author: Ted Yu, 2014-02-08, 02:34
[MAPREDUCE-5719] Potential null pointer access in AbstractYarnScheduler#getTransferredContainers() - MapReduce - [issue]
...From https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1666/console :Tests run: 14, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 63.12 sec <<< FAILURE! - in org.apache.hadoo...
http://issues.apache.org/jira/browse/MAPREDUCE-5719    Author: Ted Yu, 2014-02-06, 03:28
[MAPREDUCE-5739] DirectoryCollection#createNonExistentDirs() may use an invalid iterator - MapReduce - [issue]
...Here is related code:    for (final String dir : localDirs) {      try {        createDir(localFs, new Path(dir), perm); &nbs...
http://issues.apache.org/jira/browse/MAPREDUCE-5739    Author: Ted Yu, 2014-02-04, 00:22
Re: HBase connection hangs - MapReduce - [mail # user]
...Putting common-user to bcc since this is an HBase related question.  Which version of HBase are you using ? Can you say a bit more about the cluster you're connecting to ?  When yo...
   Author: Ted Yu, 2014-01-14, 03:08
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