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From "Bikas Saha (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-8374) Improve support for hard link manipulation on Windows
Date Wed, 09 May 2012 20:41:49 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-8374?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Bikas Saha updated HADOOP-8374:

    Attachment: HADOOP-8374-1.patch

Patch which makes tests pass with fsutil. However this requires admin privileges to run fsutil.
mklink provides hard link creation but not hard link count. Need to write a utility to get
hard link count without admin privileges.
> Improve support for hard link manipulation on Windows
> -----------------------------------------------------
>                 Key: HADOOP-8374
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8374
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1.0.0
>            Reporter: Bikas Saha
>            Assignee: Bikas Saha
>             Fix For: 1.0.3
>         Attachments: HADOOP-8374-1.patch
> Hard link support for Windows does not work properly. There is some refactoring needed
in the code. Also, the code currently executes the fsutil command to manipulate hard links.
fsutil requires admin privileges on recent versions of Windows. The main features needed are
the ability to create hard links to a file and count the number of hard links to a file. So
we could use mklink to create hard links and write a custom executable to count hard links.
Or use a custom executable to do both using Windows API's.

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