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https://issues.apache.org/jira/browse/ASTERIXDB-1497?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348452#comment-15348452
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Murtadha Hubail commented on ASTERIXDB-1497:
--------------------------------------------
[~buyingyi],
Were you trying to stop the instance after this exception happened?
> ConcurrentModificationException in hyracks DefaultDeallocatableRegistry
> -----------------------------------------------------------------------
>
> Key: ASTERIXDB-1497
> URL: https://issues.apache.org/jira/browse/ASTERIXDB-1497
> Project: Apache AsterixDB
> Issue Type: Bug
> Components: Storage
> Reporter: Yingyi Bu
> Assignee: Yingyi Bu
>
> {noformat}
> java.util.ConcurrentModificationException
> at java.util.Vector$Itr.checkForComodification(Vector.java:1184)
> at java.util.Vector$Itr.next(Vector.java:1137)
> at
> org.apache.hyracks.control.nc.resources.DefaultDeallocatableRegistry.close(DefaultDeallocatableRegistry.java:40)
> at org.apache.hyracks.control.nc.Joblet$1.run(Joblet.java:224)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Jun 22, 2016 6:41:25 PM
> org.apache.hyracks.api.lifecycle.LifeCycleComponentManager stopAll
> {noformat}
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