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From "Sameer Paranjpye (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-76) Implement speculative re-execution of reduces
Date Tue, 30 May 2006 18:56:30 GMT
     [ http://issues.apache.org/jira/browse/HADOOP-76?page=all ]

Sameer Paranjpye updated HADOOP-76:
-----------------------------------

        Summary: Implement speculative re-execution of reduces  (was: reduce output should
first be written to a temporary file name, then moved into place)
    Fix Version: 0.4
                     (was: 0.3)
    Description: 
As a first step, reduce task outputs should go to temporary files which are renamed when the
task completes.


  was:This would permit speculative execution of reduce tasks.


> Implement speculative re-execution of reduces
> ---------------------------------------------
>
>          Key: HADOOP-76
>          URL: http://issues.apache.org/jira/browse/HADOOP-76
>      Project: Hadoop
>         Type: Improvement

>   Components: mapred
>     Versions: 0.1.0
>     Reporter: Doug Cutting
>     Assignee: Owen O'Malley
>     Priority: Minor
>      Fix For: 0.4

>
> As a first step, reduce task outputs should go to temporary files which are renamed when
the task completes.

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