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Posted to yarn-issues@hadoop.apache.org by "Varun Vasudev (JIRA)" <ji...@apache.org> on 2014/08/25 06:50:57 UTC

[jira] [Created] (YARN-2448) RM should expose the name of the ResourceCalculator being used when AMs register

Varun Vasudev created YARN-2448:
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             Summary: 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


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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