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https://issues.apache.org/jira/browse/YARN-2448?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14117506#comment-14117506
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Varun Vasudev commented on YARN-2448:
-------------------------------------

[~sandyr], [~kasha] thanks for your extremely helpful input. I think what 
[~sandyr] is suggesting should be ok. Is it ok to generalize it to return a 
representation of the resource types that the scheduler considers as part of 
its functioning? So that in the future if we add support for more resource 
types, we don't have to change much?

> RM should expose the name of the ResourceCalculator being used 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
>
>
> 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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