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Posted to yarn-issues@hadoop.apache.org by "Harsh J (JIRA)" <ji...@apache.org> on 2013/04/07 20:25:15 UTC

[jira] [Created] (YARN-552) Expose resource metrics as part of YarnClusterMetrics

Harsh J created YARN-552:
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             Summary: Expose resource metrics as part of YarnClusterMetrics
                 Key: YARN-552
                 URL: https://issues.apache.org/jira/browse/YARN-552
             Project: Hadoop YARN
          Issue Type: Sub-task
          Components: resourcemanager
    Affects Versions: 2.0.3-alpha
            Reporter: Harsh J
            Priority: Minor


Right now, the YarnClusterMetrics just has the total number of node managers returned in it (when queried from a Client -> RM).

It would be useful to also expose NodeManager resource capacities and scheduler max/min resource limits over it to allow clients to pre-determine or pre-compute runtime feasibility without having to request an Application first to get some of this information.

This does not need to be an incompatible change, and we can continue exposing the same values as part of the GetNewApplicationResponse too.

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