[jira] Commented: (HIVE-1492) FileSinkOperator should remove duplicated files from the same task based on file sizes

["He Yongqiang (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HIVE-1492?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12893460#action_12893460 ] 

He Yongqiang commented on HIVE-1492:
------------------------------------

+1, looks good. will commit after tests pass.

> FileSinkOperator should remove duplicated files from the same task based on file sizes
> --------------------------------------------------------------------------------------
>
>                 Key: HIVE-1492
>                 URL: https://issues.apache.org/jira/browse/HIVE-1492
>             Project: Hadoop Hive
>          Issue Type: Bug
>    Affects Versions: 0.7.0
>            Reporter: Ning Zhang
>            Assignee: Ning Zhang
>         Attachments: HIVE-1492.patch
>
>
> FileSinkOperator.jobClose() calls Utilities.removeTempOrDuplicateFiles() to retain only one file for each task. A task could produce multiple files due to failed attempts or speculative runs. The largest file should be retained rather than the first file for each task. 

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