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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3424) the value returned from getPartition should be checked to make sure it is in the range 0..#reduces-1
Date Wed, 21 May 2008 14:33:55 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3424?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Owen O'Malley updated HADOOP-3424:
----------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this. Thanks, Chris!

> 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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