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From "Eugene Koifman (Jira)" <j...@apache.org>
Subject [jira] [Assigned] (HIVE-17660) Compaction for MM runs Cleaner - needs test once IOW is supported
Date Wed, 28 Jul 2021 14:14:03 GMT

     [ https://issues.apache.org/jira/browse/HIVE-17660?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Eugene Koifman reassigned HIVE-17660:
-------------------------------------

    Assignee:     (was: Eugene Koifman)

> Compaction for MM runs Cleaner - needs test once IOW is supported
> -----------------------------------------------------------------
>
>                 Key: HIVE-17660
>                 URL: https://issues.apache.org/jira/browse/HIVE-17660
>             Project: Hive
>          Issue Type: Sub-task
>          Components: Transactions
>            Reporter: Eugene Koifman
>            Priority: Major
>
> Deletion of aborted deltas happens from CompactorMR.run() i.e. from Worker
> but the Worker still sets compaction_queue entry to READY_FOR_CLEANING.
> This is not needed if there are no base_N dirs which can be created by Insert Overwrite
> In this case we can't delete deltas < N until we know no one is reading them, i.e.
in Cleaner



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