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Posted to common-issues@hadoop.apache.org by "Andrew Wang (JIRA)" <ji...@apache.org> on 2013/04/04 21:34:18 UTC

[jira] [Commented] (HADOOP-8040) Add symlink support to FileSystem

    [ https://issues.apache.org/jira/browse/HADOOP-8040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13622694#comment-13622694 ] 

Andrew Wang commented on HADOOP-8040:
-------------------------------------

Hey folks, just a status update: I'm waiting on a more substantive review before rolling up the javac warning and Brock's nit. Thanks for your comments thus far!
                
> Add symlink support to FileSystem
> ---------------------------------
>
>                 Key: HADOOP-8040
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8040
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs
>    Affects Versions: 0.23.0, 3.0.0, 2.0.3-alpha
>            Reporter: Eli Collins
>            Assignee: Andrew Wang
>         Attachments: hadoop-8040-1.patch, hadoop-8040-2.patch, hadoop-8040-3.patch
>
>
> HADOOP-6421 added symbolic links to FileContext. Resolving symlinks is done on the client-side, and therefore requires client support. An HDFS symlink (created by FileContext) when accessed by FileSystem will result in an unhandled UnresolvedLinkException. Because not all users will migrate from FileSystem to FileContext in lock step, and we want users of FileSystem to be able to access all paths created by FileContext, we need to support symlink resolution in FileSystem as well, to facilitate migration to FileContext.

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