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Posted to mapreduce-issues@hadoop.apache.org by "Andrey Stepachev (JIRA)" <ji...@apache.org> on 2014/09/29 12:04:33 UTC

[jira] [Created] (MAPREDUCE-6113) An ability to override LocalResourceVisibility for public resources

Andrey Stepachev created MAPREDUCE-6113:
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             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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