[
https://issues.apache.org/jira/browse/HIVE-11685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15858443#comment-15858443
]
Eugene Koifman commented on HIVE-11685:
---------------------------------------
JobID is part of SHOW COMPACTIONS as of HIVE-15337.
Unfortunately it doesn't show up until job completes because
CompactorMR.launchCompactionJob() uses JobConf.runJob() instead of
[submitJob()|https://hadoop.apache.org/docs/r2.6.2/api/org/apache/hadoop/mapred/JobClient.html#submitJob(org.apache.hadoop.mapred.JobConf)]
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
