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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-2539) NPE when calling JobClient.getMapTaskReports for retired job
Date Sat, 28 May 2011 00:12:47 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040518#comment-13040518
] 

Hadoop QA commented on MAPREDUCE-2539:
--------------------------------------

-1 overall.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12480700/MR-2539-trunk-v1.patch
  against trunk revision 1128394.

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

    +1 tests included.  The patch appears to include 4 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 appears to introduce 1 new Findbugs (version 1.3.9) 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 passed contrib unit tests.

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/316//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/316//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-MAPREDUCE-Build/316//console

This message is automatically generated.

> NPE when calling JobClient.getMapTaskReports for retired job
> ------------------------------------------------------------
>
>                 Key: MAPREDUCE-2539
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2539
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: client
>    Affects Versions: 0.22.0
>            Reporter: Robert Joseph Evans
>            Assignee: Robert Joseph Evans
>         Attachments: MR-2539-trunk-v1.patch, MR-2539-yarn-v1.patch
>
>
> When calling JobClient.getMapTaskReports for a retired job this results in a NPE.  In
the 0.20.* version an empty TaskReport array was returned instead.
> Caused by: java.lang.NullPointerException
>         at org.apache.hadoop.mapred.JobClient.getMapTaskReports(JobClient.java:588)
>         at org.apache.pig.tools.pigstats.JobStats.addMapReduceStatistics(JobStats.java:388)
> ......

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