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https://issues.apache.org/jira/browse/HIVE-15562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15812520#comment-15812520
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Sergey Shelukhin commented on HIVE-15562:
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+1 if test failures are unrelated.
I am assuming that moving finishableStateUpdate under lock has no other
implications for locking...
> LLAP TaskExecutorService race can lead to some fragments being permanently
> lost
> -------------------------------------------------------------------------------
>
> Key: HIVE-15562
> URL: https://issues.apache.org/jira/browse/HIVE-15562
> Project: Hive
> Issue Type: Bug
> Reporter: Siddharth Seth
> Assignee: Siddharth Seth
> Priority: Critical
> Attachments: HIVE-15562.01.patch
>
>
> A fragment can be evicted before it's submission completed. A race can cause
> a situation As a result, we end up trying to unregister the fragment for
> stateChangeNotifications before it has been registered - leading to an
> exception, which skips the actual fragment kill.
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