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https://issues.apache.org/jira/browse/HIVE-25631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17441561#comment-17441561
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Denys Kuzmenko commented on HIVE-25631:
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Merged to master.
[~klcopp], thank you for the review!
> Initiator speed-up: only read compaction history once per loop
> --------------------------------------------------------------
>
> Key: HIVE-25631
> URL: https://issues.apache.org/jira/browse/HIVE-25631
> Project: Hive
> Issue Type: Task
> Reporter: Denys Kuzmenko
> Assignee: Denys Kuzmenko
> Priority: Major
> Labels: pull-request-available
> Time Spent: 50m
> Remaining Estimate: 0h
>
> In checkFailedCompactions (which is called for every partition in the list of
> potentials to compact) we select from metadata table COMPLETED_COMPACTIONS.
> But the Initiator main loop already has a ShowCompactResponse. We can use
> that instead.
> For cases where metadata is huge, this will help speed up the Initiator.
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