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From "Owen O'Malley (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HIVE-8966) Delta files created by hive hcatalog streaming cannot be compacted
Date Wed, 21 Jan 2015 00:54:34 GMT

    [ https://issues.apache.org/jira/browse/HIVE-8966?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14284935#comment-14284935
] 

Owen O'Malley commented on HIVE-8966:
-------------------------------------

After a little more thought, I'm worried that someone will accidentally create a ValidCompactorTxnList
and get confused by the different behavior. I think it would make sense to move it into the
compactor package to minimize the chance that someone accidentally uses it by mistake. 

> 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-8966.3.patch, HIVE-8966.4.patch, HIVE-8966.5.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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