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Posted to issues@hive.apache.org by "Zoltan Chovan (Jira)" <ji...@apache.org> on 2021/10/18 14:32:00 UTC

[jira] [Assigned] (HIVE-25442) Initiator speed-up: only read compaction history once per loop

     [ https://issues.apache.org/jira/browse/HIVE-25442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Zoltan Chovan reassigned HIVE-25442:
------------------------------------

    Assignee:     (was: Zoltan Chovan)

> Initiator speed-up: only read compaction history once per loop
> --------------------------------------------------------------
>
>                 Key: HIVE-25442
>                 URL: https://issues.apache.org/jira/browse/HIVE-25442
>             Project: Hive
>          Issue Type: Improvement
>            Reporter: Zoltan Chovan
>            Priority: Major
>
> 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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