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https://issues.apache.org/jira/browse/HADOOP-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12599002#action_12599002
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Hudson commented on HADOOP-3424:
--------------------------------
Integrated in Hadoop-trunk #499 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/499/])
> the value returned from getPartition should be checked to make sure it is in
> the range 0..#reduces-1
> ----------------------------------------------------------------------------------------------------
>
> Key: HADOOP-3424
> URL: https://issues.apache.org/jira/browse/HADOOP-3424
> Project: Hadoop Core
> Issue Type: Bug
> Components: mapred
> Affects Versions: 0.17.0
> Reporter: Owen O'Malley
> Assignee: Chris Douglas
> Fix For: 0.18.0
>
> Attachments: 3424-0.patch
>
>
> Since HADOOP-2919, map tasks haven't complained if getPartition returns
> numbers outside of the valid range. This leads to applications where some of
> the transient output is ignored (all of the rows marked for reduce -1, for
> example, are discarded, because reduce -1 doesn't exist.)
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