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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-1813) NPE in PipeMapred.MRErrorThread
Date Tue, 08 Jun 2010 14:43:13 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-1813?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12876688#action_12876688
] 

Hadoop QA commented on MAPREDUCE-1813:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12446581/1813.v1.2.patch
  against trunk revision 952548.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit
warnings.

    +1 core tests.  The patch passed core unit tests.

    -1 contrib tests.  The patch failed contrib unit tests.

Test results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/229/testReport/
Findbugs warnings: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/229/artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Checkstyle results: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/229/artifact/trunk/build/test/checkstyle-errors.html
Console output: http://hudson.zones.apache.org/hudson/job/Mapreduce-Patch-h4.grid.sp2.yahoo.net/229/console

This message is automatically generated.

> NPE in PipeMapred.MRErrorThread
> -------------------------------
>
>                 Key: MAPREDUCE-1813
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-1813
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: contrib/streaming
>    Affects Versions: 0.20.1
>            Reporter: Amareshwari Sriramadasu
>            Assignee: Ravi Gummadi
>             Fix For: 0.22.0
>
>         Attachments: 1813.patch, 1813.v1.2.patch, 1813.v1.patch
>
>
> Some reduce tasks fail with following NPE
> java.lang.RuntimeException: java.lang.NullPointerException
>         at org.apache.hadoop.streaming.PipeMapRed.waitOutputThreads(PipeMapRed.java:325)
>         at org.apache.hadoop.streaming.PipeMapRed.mapRedFinished(PipeMapRed.java:540)
>         at org.apache.hadoop.streaming.PipeReducer.close(PipeReducer.java:137)
>         at org.apache.hadoop.mapred.ReduceTask.runOldReducer(ReduceTask.java:474)
>         at org.apache.hadoop.mapred.ReduceTask.run(ReduceTask.java:412)
>         at org.apache.hadoop.mapred.Child.main(Child.java:159)
> Caused by: java.lang.NullPointerException
>        at org.apache.hadoop.streaming.PipeMapRed$MRErrorThread.setStatus(PipeMapRed.java:517)
>         at org.apache.hadoop.streaming.PipeMapRed$MRErrorThread.run(PipeMapRed.java:449)

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