Craig Welch commented on YARN-3293:

Overall +1 looks good to me.  One additional thing occurred to me when looking 
it over again - I think that CapacitySchedulerHealthInfo in the web dao is, for 
the most part, cross-scheduler.  Does it make sense to factor most of it up 
into a generalized "SchedulerHealthInfo" with all the common pieces and extend 
it (to CapacitySchedulerHealthInfo)  just for the CS specific constructor?

> Track and display capacity scheduler health metrics in web UI
> -------------------------------------------------------------
>                 Key: YARN-3293
>                 URL: https://issues.apache.org/jira/browse/YARN-3293
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: capacityscheduler
>            Reporter: Varun Vasudev
>            Assignee: Varun Vasudev
>         Attachments: Screen Shot 2015-03-30 at 4.30.14 PM.png, 
> apache-yarn-3293.0.patch, apache-yarn-3293.1.patch, apache-yarn-3293.2.patch, 
> apache-yarn-3293.4.patch, apache-yarn-3293.5.patch, apache-yarn-3293.6.patch
> It would be good to display metrics that let users know about the health of 
> the capacity scheduler in the web UI. Today it is hard to get an idea if the 
> capacity scheduler is functioning correctly. Metrics such as the time for the 
> last allocation, etc.

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