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From "Chris Douglas (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-730) Local file system uses copy to implement rename
Date Thu, 06 Mar 2008 21:14:58 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-730?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Chris Douglas updated HADOOP-730:
---------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

I just committed this.

> Local file system uses copy to implement rename
> -----------------------------------------------
>
>                 Key: HADOOP-730
>                 URL: https://issues.apache.org/jira/browse/HADOOP-730
>             Project: Hadoop Core
>          Issue Type: Improvement
>          Components: fs
>    Affects Versions: 0.8.0
>            Reporter: Owen O'Malley
>            Assignee: Chris Douglas
>             Fix For: 0.17.0
>
>         Attachments: 730-0.patch, 730-1.patch, 730-2.patch
>
>
> There is a variable LocalFileSystem.useCopyForRename that is set to true. When true,
the local file system will implement rename as a copy followed by a delete. This is likely
a performance problem. Is there a reason that useCopyForRename is set?

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