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https://issues.apache.org/jira/browse/HIVE-4638?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13691021#comment-13691021
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Ashutosh Chauhan commented on HIVE-4638:
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I will assume its bit hard to write junit test case for testing concurrency.
But was wondering if you thought about writing test case for it. Else, can you
provide info on what manual testing you did to verify the fix?
> Thread local PerfLog can get shared by multiple hiveserver2 sessions
> --------------------------------------------------------------------
>
> Key: HIVE-4638
> URL: https://issues.apache.org/jira/browse/HIVE-4638
> Project: Hive
> Issue Type: Bug
> Components: HiveServer2, Query Processor
> Affects Versions: 0.11.0
> Reporter: Prasad Mujumdar
> Assignee: Prasad Mujumdar
> Fix For: 0.12.0
>
> Attachments: HIVE-4638-1.patch
>
>
> The PerfLog is accessed as thread local which can be shared by multiple
> hiveserver2 session, overwriting query runtime information.
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