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https://issues.apache.org/jira/browse/HIVE-22568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16987241#comment-16987241
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Peter Vary commented on HIVE-22568:
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CC: [~Rajkumar Singh] - this is back on the plate again. We decided to move
forward with this parallelization with a parameter low enough not to kill the
NameNode and the HMS
> Process compaction candidates in parallel by the Initiator
> ----------------------------------------------------------
>
> Key: HIVE-22568
> URL: https://issues.apache.org/jira/browse/HIVE-22568
> Project: Hive
> Issue Type: Improvement
> Reporter: Denys Kuzmenko
> Assignee: Denys Kuzmenko
> Priority: Major
> Attachments: HIVE-22568.1.patch
>
>
> `checkForCompaction` includes many file metadata checks and may be expensive.
> Therefore, make sense using a thread pool here and running
> `checkForCompactions` in parallel.
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