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From "Rohith Sharma K S (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-6563) ConcurrentModificationException in TimelineCollectorManager while stopping RM
Date Fri, 05 May 2017 10:27:04 GMT
Rohith Sharma K S created YARN-6563:
---------------------------------------

             Summary: ConcurrentModificationException in TimelineCollectorManager while stopping
RM
                 Key: YARN-6563
                 URL: https://issues.apache.org/jira/browse/YARN-6563
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
            Reporter: Rohith Sharma K S


It is seen that ConcurrentModificationException while stopping RM when ATSv2 enabled. 

{noformat}
2017-05-05 15:04:11,563 WARN org.apache.hadoop.service.CompositeService: When stopping the
service org.apache.hadoop.yarn.server.resourcemanager.timelineservice.RMTimelineCollectorManager
: java.util.ConcurrentModificationException
java.util.ConcurrentModificationException
	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1437)
	at java.util.HashMap$ValueIterator.next(HashMap.java:1466)
	at org.apache.hadoop.yarn.server.timelineservice.collector.TimelineCollectorManager.serviceStop(TimelineCollectorManager.java:222)
	at org.apache.hadoop.service.AbstractService.stop(AbstractService.java:221)
	at org.apache.hadoop.service.ServiceOperations.stop(ServiceOperations.java:52)
	at org.apache.hadoop.service.ServiceOperations.stopQuietly(ServiceOperations.java:80)
	at org.apache.hadoop.service.CompositeService.stop(CompositeService.java:157)
	at org.apache.hadoop.service.CompositeService.serviceStop(CompositeService.java:131)
	at org.apache.hadoop.yarn.server.resourcemanager.ResourceManager.serviceStop(ResourceManager.java:1285)
{noformat}



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