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Posted to yarn-issues@hadoop.apache.org by "Karthik Kambatla (JIRA)" <ji...@apache.org> on 2017/02/16 22:54:41 UTC
[jira] [Updated] (YARN-6171) ConcurrentModificationException on
FSAppAttempt.containersToPreempt
[ https://issues.apache.org/jira/browse/YARN-6171?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Karthik Kambatla updated YARN-6171:
-----------------------------------
Summary: ConcurrentModificationException on FSAppAttempt.containersToPreempt (was: ConcurrentModificationException in ApplicationMasterService.allocate)
> ConcurrentModificationException on FSAppAttempt.containersToPreempt
> -------------------------------------------------------------------
>
> Key: YARN-6171
> URL: https://issues.apache.org/jira/browse/YARN-6171
> Project: Hadoop YARN
> Issue Type: Bug
> Components: fairscheduler
> Affects Versions: 3.0.0-alpha2
> Reporter: Miklos Szegedi
> Assignee: Miklos Szegedi
> Attachments: YARN-6171.000.patch, YARN-6171.001.patch, YARN-6171.002.patch, YARN-6171.003.patch, YARN-6171.004.patch
>
>
> I have noticed an exception that closes the Application Master occasionally with Fair scheduler.
> {code}
> Caused by: org.apache.hadoop.ipc.RemoteException(java.util.ConcurrentModificationException): java.util.ConcurrentModificationException
> at java.util.HashMap$HashIterator.nextEntry(HashMap.java:922)
> at java.util.HashMap$KeyIterator.next(HashMap.java:956)
> at org.apache.hadoop.yarn.server.resourcemanager.scheduler.fair.FairScheduler.allocate(FairScheduler.java:1005)
> at org.apache.hadoop.yarn.server.resourcemanager.ApplicationMasterService.allocate(ApplicationMasterService.java:532)
> at org.apache.hadoop.yarn.api.impl.pb.service.ApplicationMasterProtocolPBServiceImpl.allocate(ApplicationMasterProtocolPBServiceImpl.java:60)
> at org.apache.hadoop.yarn.proto.ApplicationMasterProtocol$ApplicationMasterProtocolService$2.callBlockingMethod(ApplicationMasterProtocol.java:99)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$Server$ProtoBufRpcInvoker.call(ProtobufRpcEngine.java:617)
> at org.apache.hadoop.ipc.RPC$Server.call(RPC.java:1073)
> {code}
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