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YARN + how to measure the consuming of number of core in yarn

we have HDP cluster version - 2.6.5 with Ambari platform


here is example from our Ambari lab cluster with 5 mode managers machines




regarding to YARN service - is it possible to add in Ambari the widget that can show CPU core
consuming ?


if not what are the other ways to find the CORE consuming by YARN from cli ?

other way that we found is from the `resource_manager:8088/cluster`

as the following



so is it possible to find some API / CLI that can capture the VCores Used ?


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