[jira] [Created] (YARN-7660) NodeManager metrics return wrong value after update node resource

["Yang Wang (JIRA)" <ji...@apache.org>]

Yang Wang created YARN-7660:
-------------------------------

             Summary: NodeManager metrics return wrong value after update node resource
                 Key: YARN-7660
                 URL: https://issues.apache.org/jira/browse/YARN-7660
             Project: Hadoop YARN
          Issue Type: Bug
            Reporter: Yang Wang


{code:title=NodeManagerMetrics.java}
  public void addResource(Resource res) {
    availableMB = availableMB + res.getMemorySize();
    availableGB.incr((int)Math.floor(availableMB/1024d));
    availableVCores.incr(res.getVirtualCores());
  }
{code}
When the node resource was updated through RM-NM heartbeat, the NM metric will get wrong value. 
The root cause of this issue is that new resource has been added to availableMB, so not needed to increase for availableGB again.



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