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From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (MAPREDUCE-989) Allow segregation of DistributedCache for maps and reduces
Date Thu, 17 Sep 2009 04:21:57 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-989?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12756361#action_12756361
] 

Vinod K V commented on MAPREDUCE-989:
-------------------------------------

Any use-cases? As of now, maps and reduces _can_ manage separate DistributedCache files/archives
themselves. Is the suggestion only for separate API in job submission? Or do we want to enfoce
the segragation on the TTs too - avoiding maps' cache files to be accessible by reduces and
vice versa?

> Allow segregation of DistributedCache for maps and reduces
> ----------------------------------------------------------
>
>                 Key: MAPREDUCE-989
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-989
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: client
>            Reporter: Arun C Murthy
>
> Applications might have differing needs for files in the DistributedCache wrt maps and
reduces. We should allow them to specify them separately.

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