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https://issues.apache.org/jira/browse/HIVE-18418?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16319418#comment-16319418
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Prasanth Jayachandran commented on HIVE-18418:
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Should you synchronize on entry.getValue() instead? There is nothing preventing
it from mutated throwing ConcurrentModificationException on iteration. Isn't it?
> clean up plugin between DAGs
> ----------------------------
>
> Key: HIVE-18418
> URL: https://issues.apache.org/jira/browse/HIVE-18418
> Project: Hive
> Issue Type: Sub-task
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-18418.patch
>
>
> Noticed this while looking at some other JIRA. We need to make sure we clean
> up the plugin state between DAGs.
> Technically HS2 would send us the new token count with the new dag but it's
> good to make sure it cannot get inherited by accident.
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