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From "Wangda Tan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2922) Concurrent Modification Exception in LeafQueue when collecting applications
Date Fri, 02 Jan 2015 19:06:35 GMT

    [ https://issues.apache.org/jira/browse/YARN-2922?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14263137#comment-14263137
] 

Wangda Tan commented on YARN-2922:
----------------------------------

+1 for the latest patch.

> Concurrent Modification Exception in LeafQueue when collecting applications
> ---------------------------------------------------------------------------
>
>                 Key: YARN-2922
>                 URL: https://issues.apache.org/jira/browse/YARN-2922
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager, scheduler
>    Affects Versions: 2.5.1
>            Reporter: Jason Tufo
>            Assignee: Rohith
>         Attachments: 0001-YARN-2922.patch, 0001-YARN-2922.patch
>
>
> 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.LeafQueue.collectSchedulerApplications(LeafQueue.java:1618)
>                 at org.apache.hadoop.yarn.server.resourcemanager.scheduler.capacity.CapacityScheduler.getAppsInQueue(CapacityScheduler.java:1119)
>                 at org.apache.hadoop.yarn.server.resourcemanager.ClientRMService.getQueueInfo(ClientRMService.java:798)
>                 at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationClientProtocolPBServiceImpl.getQueueInfo(ApplicationClientProtocolPBServiceImpl.java:234)
>                 at org.apache.hadoop.yarn.proto.ApplicationClientProtocol$ApplicationClientProtocolService$2.callBlockingMethod(ApplicationClientProtocol.java:333)
>                 at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:585)
>                 at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:928)
>                 at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2013)
>                 at org.apache.hadoop.ipc.Server$Handler$1.run(Server.java:2009)
>                 at java.security.AccessController.doPrivileged(Native Method)
>                 at javax.security.auth.Subject.doAs(Subject.java:415)
>                 at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1614)
>                 at org.apache.hadoop.ipc.Server$Handler.run(Server.java:2007)



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