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Posted to common-issues@hadoop.apache.org by "Steve Loughran (Jira)" <ji...@apache.org> on 2022/12/21 11:12:00 UTC

[jira] [Commented] (HADOOP-18582) No need to clean tmp files in ditcp direct mode

    [ https://issues.apache.org/jira/browse/HADOOP-18582?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17650825#comment-17650825 ] 

Steve Loughran commented on HADOOP-18582:
-----------------------------------------

well spotted!

fancy supplying a patch?

> No need to clean tmp files in ditcp direct mode
> -----------------------------------------------
>
>                 Key: HADOOP-18582
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18582
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: tools/distcp
>    Affects Versions: 3.3.4
>            Reporter: 10000kang
>            Priority: Major
>
> it not necessary to do `cleanupTempFiles`  while ditcp commit job in direct  mode, because it there is no temp files in direct mode.
> This clean operation will increase the task execution time, because it will get the list of files in the target path. When the number of files in the target path is very large, this operation will be very slow.



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