Anthony Rojas created YARN-3467:

             Summary: Expose allocatedMB, allocatedVCores, and 
runningContainers metrics on running Applications on RM Web UI
                 Key: YARN-3467
             Project: Hadoop YARN
          Issue Type: New Feature
          Components: webapp, yarn
    Affects Versions: 2.5.0
            Reporter: Anthony Rojas
            Priority: Minor

The YARN REST API can report on the following properties:

*allocatedMB*: The sum of memory in MB allocated to the application's running 
*allocatedVCores*: The sum of virtual cores allocated to the application's 
running containers
*runningContainers*: The number of containers currently running for the 

Currently, the RM Web UI does not report on these items (at least I couldn't 
find any entries within the Web UI).

It would be useful for YARN Application and Resource troubleshooting to have 
these properties and their corresponding values exposed on the RM WebUI.

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