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From "Luke Lu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-2480) MR-279: mr app should not depend on hard-coded version of shuffle
Date Tue, 10 May 2011 00:34:03 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2480?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Luke Lu updated MAPREDUCE-2480:

    Attachment: mr-2480-shuffle-version-v1.patch

The v1 patch fix the hard-code version.

However a bigger issue is whether app (a user land module) should depend on a specific implementation
shuffle (loaded into node manager). I think it should not.  The MAPREDUCE_SERVICE_ID should
probably resides in a MRServices class in mr common. I have the impression (based on previous
conversations) that Chris was gonna refactor the NM service stuff later. It's probably OK
as is now.

> MR-279: mr app should not depend on hard-coded version of shuffle
> -----------------------------------------------------------------
>                 Key: MAPREDUCE-2480
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2480
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv2
>            Reporter: Luke Lu
>            Assignee: Luke Lu
>             Fix For: 0.23.0
>         Attachments: mr-2480-shuffle-version-v1.patch
> The following commit introduced a dependency of shuffle with hard-coded version for mr
> {noformat}
> commit 6f69742140516be7493c9a9177b81d0516cc9539
> Author: Vinod Kumar Vavilapalli <vinodkv@apache.org>
> Date:   Wed May 4 06:53:52 2011 +0000
>     Adding user log handling for YARN. Making NM put the user-logs on DFS and providing
log-dump tools. Contributed by Vinod Kumar Vavilapalli.
> {noformat}

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