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Posted to yarn-issues@hadoop.apache.org by "Varun Vasudev (JIRA)" <ji...@apache.org> on 2014/09/04 21:19:52 UTC

[jira] [Commented] (YARN-2448) RM should expose the resource types considered during scheduling when AMs register

    [ https://issues.apache.org/jira/browse/YARN-2448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14121786#comment-14121786 ] 

Varun Vasudev commented on YARN-2448:
-------------------------------------

Updated title to reflect what the latest patch is fixing.

> RM should expose the resource types considered during scheduling when AMs register
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-2448
>                 URL: https://issues.apache.org/jira/browse/YARN-2448
>             Project: Hadoop YARN
>          Issue Type: Improvement
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>         Attachments: apache-yarn-2448.0.patch, apache-yarn-2448.1.patch, apache-yarn-2448.2.patch
>
>
> The RM should expose the name of the ResourceCalculator being used when AMs register, as part of the RegisterApplicationMasterResponse.
> This will allow applications to make better decisions when scheduling. MapReduce for example, only looks at memory when deciding it's scheduling, even though the RM could potentially be using the DominantResourceCalculator.



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