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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5382) The new map/reduce api doesn't support combiners
Date Wed, 18 Mar 2009 23:49:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5382?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12683241#action_12683241
] 

Owen O'Malley commented on HADOOP-5382:
---------------------------------------

     [exec] +1 overall.
     [exec]
     [exec]     +1 @author.  The patch does not contain any @author tags.
     [exec]
     [exec]     +1 tests included.  The patch appears to include 3 new or modified tests.
     [exec]
     [exec]     +1 javadoc.  The javadoc tool did not generate any warning messages.
     [exec]
     [exec]     +1 javac.  The applied patch does not increase the total number of javac compiler
warnings.
     [exec]
     [exec]     +1 findbugs.  The patch does not introduce any new Findbugs warnings.
     [exec]
     [exec]     +1 Eclipse classpath. The patch retains Eclipse classpath integrity.
     [exec]
     [exec]     +1 release audit.  The applied patch does not increase the total number of
release audit warnings.


> The new map/reduce api doesn't support combiners
> ------------------------------------------------
>
>                 Key: HADOOP-5382
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5382
>             Project: Hadoop Core
>          Issue Type: Bug
>    Affects Versions: 0.20.0
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>            Priority: Blocker
>             Fix For: 0.20.0
>
>         Attachments: h5382.patch, h5382.patch
>
>
> Currently, combiners are only called if they are defined using the old deprecated api.


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