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https://issues.apache.org/jira/browse/YARN-3145?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14306726#comment-14306726
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Rohith commented on YARN-3145:
------------------------------
[~jianhe] I am looking into problem,is it from trunk version? I could not see
line number matching!!
The scenario I think is refreshQueue has been triggered concurrently by
removing childqueues. Is this is the case in your scenario?
> ConcurrentModificationException on CapacityScheduler
> ParentQueue#getQueueUserAclInfo
> ------------------------------------------------------------------------------------
>
> Key: YARN-3145
> URL: https://issues.apache.org/jira/browse/YARN-3145
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Jian He
> Assignee: Rohith
> Attachments: YARN-3145.001.patch
>
>
> {code}
> ava.util.ConcurrentModificationException(java.util.ConcurrentModificationException
> at java.util.TreeMap$PrivateEntryIterator.nextEntry(TreeMap.java:1115)
> at java.util.TreeMap$KeyIterator.next(TreeMap.java:1169)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.getQueueUserAclInfo(ParentQueue.java:347)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.ParentQueue.getQueueUserAclInfo(ParentQueue.java:348)
> at
> org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.getQueueUserAclInfo(CapacityScheduler.java:850)
> at
> org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getQueueUserAcls(ClientRMService.java:844)
> at
> org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getQueueUserAcls(ApplicationClientProtocolPBServiceImpl.java:250)
> at
> org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:335)
> {code}
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