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https://issues.apache.org/jira/browse/HIVE-15011?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15589429#comment-15589429
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Sergey Shelukhin commented on HIVE-15011:
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Just a note - MoveTask is a misnomer, it does much more than just file move...
so the long term fix might not be getting rid of it :)
> fix issues with MoveTask.releaseLocks()
> ---------------------------------------
>
> Key: HIVE-15011
> URL: https://issues.apache.org/jira/browse/HIVE-15011
> Project: Hive
> Issue Type: Sub-task
> Components: Query Planning, Query Processor, Transactions
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
>
> in Merge we can have multiple move tasks so releasing the locks should be
> done on from the "last one" - in practice they run concurrently....
> see if there is a quick fix for short term
> (slightly) longer term - get rid of MoveTask for Acid writes
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