Sunil G created YARN-4308:

             Summary: ContainersAggregated CPU resource utilization reports 
negative usage in first few heartbeats
                 Key: YARN-4308
             Project: Hadoop YARN
          Issue Type: Bug
          Components: nodemanager
    Affects Versions: 2.7.1
            Reporter: Sunil G
            Assignee: Sunil G

NodeManager reports ContainerAggregated CPU resource utilization as -ve value 
in first few heartbeats cycles. I added a new debug print and received below 
values from heartbeats.
 ContainersResource Utilization : CpuTrackerUsagePercent : -1.0 
 Utilization :  CpuTrackerUsagePercent : 198.94598

Its better we send 0 as CPU usage rather than sending a negative values in 
heartbeats eventhough its happening in only first few heartbeats.

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