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From "Hemanth Yamijala (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-711) Move Distributed Cache from Common to Map/Reduce
Date Fri, 14 Aug 2009 04:12:14 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-711?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12743070#action_12743070
] 

Hemanth Yamijala commented on MAPREDUCE-711:
--------------------------------------------

To summarize:

- We moved the distributed cache out of common, as no one else is using it.
- We moved it into mapred, with the old package name and it is deprecated.
- We repackaged the classes into o.a.h.mapreduce.filecache.DistributedCache that the deprecated
classes in mapred extend.

This is blocking other JIRAs. I think the approach here is approved by Owen (from comments
above) and from Philip, with the exception of the package name. I think committing this soon
will unblock other work. So I propose going ahead after running tests once more on the new
trunk. We could change the package name to o.a.h.mapreduce.distributedcache in a follow-up
JIRA. As long as it will be in Hadoop 0.21, we can change the package name without worrying
about compatibility.

> Move Distributed Cache from Common to Map/Reduce
> ------------------------------------------------
>
>                 Key: MAPREDUCE-711
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-711
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>            Reporter: Owen O'Malley
>            Assignee: Vinod K V
>         Attachments: MAPREDUCE-711-20090709-common.txt, MAPREDUCE-711-20090709-mapreduce.1.txt,
MAPREDUCE-711-20090709-mapreduce.txt, MAPREDUCE-711-20090710.txt
>
>
> Distributed Cache logically belongs as part of map/reduce and not Common.

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