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From "Andrey Stepachev (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-6113) An ability to override LocalResourceVisibility for public resources
Date Thu, 19 Mar 2015 11:22:38 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-6113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14368884#comment-14368884

Andrey Stepachev commented on MAPREDUCE-6113:

sure [~qwertymaniac], thanks for noticing this. yarn-1492 is much broader solution and will
cover this.

> 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 do 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 ever not need to bother with permission, if private cache is needed.

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