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https://issues.apache.org/jira/browse/HIVE-11685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15889306#comment-15889306
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Eugene Koifman commented on HIVE-11685:
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with HIVE-15851 launchCompactionJob() uses submitJob() so this may be solved -
need to test it
> Restarting Metastore kills Compactions - store Hadoop job id in
> COMPACTION_QUEUE
> --------------------------------------------------------------------------------
>
> Key: HIVE-11685
> URL: https://issues.apache.org/jira/browse/HIVE-11685
> Project: Hive
> Issue Type: Improvement
> Components: Metastore, Transactions
> Affects Versions: 1.0.1
> Reporter: Eugene Koifman
> Assignee: Eugene Koifman
>
> CompactorMR submits MR job to do compaction and waits for completion.
> If the metastore need to be restarted, it will kill in-flight compactions.
> I ideally we'd want to add job ID to the COMPACTION_QUEUE table (and include
> that in SHOW COMPACTIONS) and poll for it or register a callback so that the
> job survives Metastore restart
> Also,
> when running revokeTimedoutWorker() make sure to use this JobId to kill the
> job is it's still running.
> Alternatively, if it's still running, maybe just a assign a new worker_id and
> let it continue to run.
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