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https://issues.apache.org/jira/browse/HIVE-1655?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Ning Zhang updated HIVE-1655:
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    Status: Patch Available  (was: Open)

> Adding consistency check at jobClose() when committing dynamic partitions
> -------------------------------------------------------------------------
>
>                 Key: HIVE-1655
>                 URL: https://issues.apache.org/jira/browse/HIVE-1655
>             Project: Hadoop Hive
>          Issue Type: Improvement
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>         Attachments: HIVE-1655.patch
>
>
> In case of dynamic partition insert, FileSinkOperator generated a directory 
> for a new partition and the files in the directory is named with '_tmp*'. 
> When a task succeed, the file is renamed to remove the "_tmp", which 
> essentially implement the "commit" semantics. A lot of exceptions could 
> happen (process got killed, machine dies etc.) could left the _tmp files 
> exist in the DP directory. These _tmp files should be deleted ("rolled back") 
> at successful jobClose(). After the deletion, we should also delete any empty 
> directories.

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