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From "Vinayakumar B (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-8698) Add "-direct" flag option for fs copy so that user can choose not to create "._COPYING_" file
Date Tue, 08 Sep 2015 13:23:45 GMT

    [ https://issues.apache.org/jira/browse/HDFS-8698?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14734786#comment-14734786
] 

Vinayakumar B commented on HDFS-8698:
-------------------------------------

+1. Changes looks good.

> Add "-direct" flag option for fs copy so that user can choose not to create "._COPYING_"
file
> ---------------------------------------------------------------------------------------------
>
>                 Key: HDFS-8698
>                 URL: https://issues.apache.org/jira/browse/HDFS-8698
>             Project: Hadoop HDFS
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 2.7.0
>            Reporter: Chen He
>            Assignee: J.Andreina
>         Attachments: HDFS-8698.1.patch, HDFS-8698.2.patch, HDFS-8698.3.patch
>
>
> Because CLI is using CommandWithDestination.java which add "._COPYING_" to the tail of
file name when it does the copy. For blobstore like S3 and Swift, to create "._COPYING_" file
and rename it is expensive. "-direct" flag can allow user to avoiding the "._COPYING_" file.



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