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From "Scott Carey (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-279) Map-Reduce 2.0
Date Sun, 06 Mar 2011 01:54:45 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-279?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13003086#comment-13003086
] 

Scott Carey commented on MAPREDUCE-279:
---------------------------------------

Re: Shuffle.

See https://issues.apache.org/jira/browse/MAPREDUCE-318

Those changes are in 0.21+ (and perhaps Y!'s distro but not Cloudera's), I believe.  This
doesn't do everything mentioned but is a significant improvement.

> Map-Reduce 2.0
> --------------
>
>                 Key: MAPREDUCE-279
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-279
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: jobtracker, tasktracker
>            Reporter: Arun C Murthy
>            Assignee: Arun C Murthy
>             Fix For: 0.23.0
>
>
> Re-factor MapReduce into a generic resource scheduler and a per-job, user-defined component
that manages the application execution. 

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