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From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9817) FileSystem#globStatus and FileContext#globStatus need to work with symlinks
Date Fri, 02 Aug 2013 18:01:54 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9817?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13727895#comment-13727895
] 

Colin Patrick McCabe commented on HADOOP-9817:
----------------------------------------------

Sorry, I meant to say "I will post a combined path on HDFS-4019."  That is the JIRA where
we're making FSShell work with symlinks.  I would like to get this patch in before that, though,
since HDFS-4019 relies on this JIRA (HADOOP-9817).
                
> FileSystem#globStatus and FileContext#globStatus need to work with symlinks
> ---------------------------------------------------------------------------
>
>                 Key: HADOOP-9817
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9817
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 2.3.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>         Attachments: HADOOP-9817.004.patch, HADOOP-9817.005.patch
>
>
> FileSystem#globStatus and FileContext#globStatus need to work with symlinks.  Currently,
they resolve all links, so that if you have:
> {code}
> /alpha/beta
> /alphaLink -> alpha
> {code}
> and you take {{globStatus(/alphaLink/*)}}, you will get {{/alpha/beta}}, rather than
the expected {{/alphaLink/beta}}.
> We even resolve terminal symlinks, which would prevent listing a symlink in FSShell,
for example.  Instead, we should build up the path incrementally.  This will allow the shell
to behave as expected, and also allow custom globbers to "see" the correct paths for symlinks.

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