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From "Andrey Stepachev (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-6113) An ability to override LocalResourceVisibility for public resources
Date Mon, 29 Sep 2014 10:06:33 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6113?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Andrey Stepachev updated MAPREDUCE-6113:
    Status: Patch Available  (was: Open)

> 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
>         Attachments: MAPREDUCE-6113.patch
> 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
> 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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