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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-4771) KeyFieldBasedPartitioner not partitioning properly when configured
Date Tue, 06 Nov 2012 10:48:15 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-4771?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13491373#comment-13491373
] 

Hudson commented on MAPREDUCE-4771:
-----------------------------------

Integrated in Hadoop-Yarn-trunk #28 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/28/])
    MAPREDUCE-4771. KeyFieldBasedPartitioner not partitioning properly when configured (jlowe
via bobby) (Revision 1405975)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1405975
Files : 
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/lib/partition/KeyFieldBasedPartitioner.java
* /hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapred/lib/TestKeyFieldBasedPartitioner.java

                
> KeyFieldBasedPartitioner not partitioning properly when configured
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4771
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4771
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>    Affects Versions: 0.23.3, 2.0.1-alpha
>            Reporter: Jason Lowe
>            Assignee: Jason Lowe
>             Fix For: 3.0.0, 2.0.3-alpha, 0.23.5
>
>         Attachments: MAPREDUCE-4771.patch
>
>
> Relative to Hadoop 0.20/1.x, KeyFieldBasedPartitioner is not distributing across partitions
properly when configured.  This is related to the double-configure issue as described in HADOOP-7425.
 KeyFieldBasedPartitioner is getting configured twice, and that ends up duplicating the keyspecs
and causing the keys to be hashed twice.
> KeyFieldBasedPartitioner should not duplicate keyspecs when configured twice.

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