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https://issues.apache.org/jira/browse/HIVE-8966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14240415#comment-14240415
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Owen O'Malley commented on HIVE-8966:
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Alan, your patch looks good +1
> Delta files created by hive hcatalog streaming cannot be compacted
> ------------------------------------------------------------------
>
> Key: HIVE-8966
> URL: https://issues.apache.org/jira/browse/HIVE-8966
> Project: Hive
> Issue Type: Bug
> Components: HCatalog
> Affects Versions: 0.14.0
> Environment: hive
> Reporter: Jihong Liu
> Assignee: Alan Gates
> Priority: Critical
> Fix For: 0.14.1
>
> Attachments: HIVE-8966.2.patch, HIVE-8966.patch
>
>
> hive hcatalog streaming will also create a file like bucket_n_flush_length in
> each delta directory. Where "n" is the bucket number. But the
> compactor.CompactorMR think this file also needs to compact. However this
> file of course cannot be compacted, so compactor.CompactorMR will not
> continue to do the compaction.
> Did a test, after removed the bucket_n_flush_length file, then the "alter
> table partition compact" finished successfully. If don't delete that file,
> nothing will be compacted.
> This is probably a very severity bug. Both 0.13 and 0.14 have this issue
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