Weiwei Yang commented on YARN-2599:

I agree with [~Tao Yang]'s point, separate metrics allow users to monitor the 
standby RM's healthy, which is also critical to the cluster. I was not in the 
history discussion in this ticket, if this was canceled due to we were not sure 
what to expose on standby RM, we can at least start with some basic ones, e.g 
the heap like [~Tao Yang] suggested.

[~Naganarasimha], [~rohithsharma], any comments on this?

> Standby RM should also expose some jmx and metrics
> --------------------------------------------------
>                 Key: YARN-2599
>                 URL: https://issues.apache.org/jira/browse/YARN-2599
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.5.1, 2.7.3, 3.0.0-alpha1
>            Reporter: Karthik Kambatla
>            Assignee: Rohith Sharma K S
>            Priority: Major
>         Attachments: YARN-2599.patch
> YARN-1898 redirects jmx and metrics to the Active. As discussed there, we 
> need to separate out metrics displayed so the Standby RM can also be 
> monitored. 

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