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From "Andrey Stepachev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-6113) An ability to override LocalResourceVisibility for public resources
Date Mon, 29 Sep 2014 10:04:33 GMT
Andrey Stepachev created MAPREDUCE-6113:

             Summary: An ability to override LocalResourceVisibility for public resources
                 Key: MAPREDUCE-6113
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6113
             Project: Hadoop Map/Reduce
          Issue Type: Improvement
          Components: client, distributed-cache
            Reporter: Andrey Stepachev
            Assignee: Andrey Stepachev
            Priority: Minor

Currently it is impossible to specify application level for files in distributed cache in
YARN. For applications with big common data it is very crucial to have ability to share data
only for application and not spam public cache. Moreover, public localiser is limited for
parallel downloads, so applications with big caches affect application startup of other applications.
Current logic is complicated and based on file permissions. Making proposed changes, user
can override public level to any level (PUBLIC/APP/PRIVATE) without breaking anything, and
even not need to bother with permission, if private cache is needed.

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