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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