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https://issues.apache.org/jira/browse/MAPREDUCE-2?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12728243#action_12728243
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Hudson commented on MAPREDUCE-2:
--------------------------------
Integrated in Hadoop-Mapreduce-trunk #15 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-Mapreduce-trunk/15/])
> ArrayOutOfIndex error in KeyFieldBasedPartitioner on empty key
> --------------------------------------------------------------
>
> Key: MAPREDUCE-2
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Amar Kamat
> Assignee: Amar Kamat
> Fix For: 0.20.1
>
> Attachments: HADOOP-6052-v1.0-branch0.20.patch,
> HADOOP-6052-v1.0.patch, HADOOP-6052-v1.1.patch, MAPREDUCE-2-v1.0.patch,
> MAPREDUCE-2-v1.1-branch-0.20.patch, MAPREDUCE-2-v1.1.patch
>
>
> When using KeyFieldBasedPartitioner, if the record doesn't contain the
> specified field, the endChar would equal with array.length, which throw
> ArrayOutOfIndex exception, losing that record!
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