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https://issues.apache.org/jira/browse/HIVE-17904?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16245108#comment-16245108
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Sergey Shelukhin commented on HIVE-17904:
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Actually I guess this will also need to go thru the WM thread (or maybe the
session can update itself bypassing the WM thread), because we need to re-send
allocation to the newly restarted AM.
> handle internal Tez AM restart in registry and WM
> -------------------------------------------------
>
> Key: HIVE-17904
> URL: https://issues.apache.org/jira/browse/HIVE-17904
> Project: Hive
> Issue Type: Sub-task
> Reporter: Sergey Shelukhin
> Assignee: Sergey Shelukhin
> Attachments: HIVE-17904.01.patch, HIVE-17904.patch, HIVE-17904.patch
>
>
> After the plan update patch is committed. The current code doesn't account
> very well for it; registry may have races, and an event needs to be added to
> WM when some AM resets, at least to make sure we discard the update errors
> that pertain to the old AM.
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