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Posted to mapreduce-issues@hadoop.apache.org by "Devaraj K (JIRA)" <ji...@apache.org> on 2012/05/30 13:06:23 UTC
[jira] [Assigned] (MAPREDUCE-4047) NullPointerException during the
map task merge phase
[ https://issues.apache.org/jira/browse/MAPREDUCE-4047?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Devaraj K reassigned MAPREDUCE-4047:
------------------------------------
Assignee: (was: Devaraj K)
> NullPointerException during the map task merge phase
> ----------------------------------------------------
>
> Key: MAPREDUCE-4047
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-4047
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 0.23.1
> Reporter: Devaraj K
>
> While executing the tera sort with 1TB data, got the below exception
> {code:xml}
> 2012-03-20 21:02:18,526 FATAL [IPC Server handler 14 on 31776] org.apache.hadoop.mapred.TaskAttemptListenerImpl: Task: attempt_1332261815858_0002_m_003124_0 - exited : java.lang.NullPointerException
> at org.apache.hadoop.mapred.IFile$Writer.<init>(IFile.java:135)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.mergeParts(MapTask.java:1845)
> at org.apache.hadoop.mapred.MapTask$MapOutputBuffer.flush(MapTask.java:1438)
> at org.apache.hadoop.mapred.MapTask$NewOutputCollector.close(MapTask.java:663)
> at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:730)
> at org.apache.hadoop.mapred.MapTask.run(MapTask.java:332)
> at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:147)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:396)
> at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1177)
> at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:142)
> {code}
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