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https://issues.apache.org/jira/browse/MAPREDUCE-6261?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14326439#comment-14326439
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Hudson commented on MAPREDUCE-6261:
-----------------------------------
FAILURE: Integrated in Hadoop-trunk-Commit #7145 (See
[https://builds.apache.org/job/Hadoop-trunk-Commit/7145/])
MAPREDUCE-6261. NullPointerException if MapOutputBuffer.flush invoked twice.
Contributed by Tsuyoshi OZAWA (jlowe: rev
4981d082d4f3c82d1c2c900c7488b83bf20301cc)
*
hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapred/MapTask.java
* hadoop-mapreduce-project/CHANGES.txt
> NullPointerException if MapOutputBuffer.flush invoked twice
> -----------------------------------------------------------
>
> Key: MAPREDUCE-6261
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6261
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv2
> Affects Versions: 2.5.0
> Reporter: Jason Lowe
> Assignee: Tsuyoshi OZAWA
> Fix For: 2.7.0
>
> Attachments: MAPREDUCE-6261.1.patch, MAPREDUCE-6261.2.patch
>
>
> MapOutputBuffer.flush will throw an NPE if it is invoked twice, since it
> blindly assumes kvbuffer is not null yet sets kvbuffer to null towards the
> end of the method.
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