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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-5262) Optimize sending RMNodeFinishedContainersPulledByAMEvent for every AM heartbeat
Date Thu, 16 Jun 2016 09:40:05 GMT
Rohith Sharma K S created YARN-5262:
---------------------------------------

             Summary: Optimize sending RMNodeFinishedContainersPulledByAMEvent for every AM
heartbeat
                 Key: YARN-5262
                 URL: https://issues.apache.org/jira/browse/YARN-5262
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
            Reporter: Rohith Sharma K S
            Assignee: Rohith Sharma K S


It is observed that RM triggers an one event for every ApplicationMaster#allocate request
in the following trace. This is not necessarily required and it can be optimized such that
send only if any containers are there to acknowledge to NodeManager. 
{code}
	RMAppAttemptImpl.sendFinishedContainersToNM() line: 1871	
	RMAppAttemptImpl.pullJustFinishedContainers() line: 805	
	ApplicationMasterService.allocate(AllocateRequest) line: 567
{code}



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