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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HDFS-245) Create symbolic links in HDFS
Date Thu, 24 Sep 2009 09:02:16 GMT

     [ https://issues.apache.org/jira/browse/HDFS-245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

dhruba borthakur updated HDFS-245:
----------------------------------

    Attachment: symlink17-hdfs.txt
                symlink17-common.txt

Here is a patch that conforms to the modified consensus arrived earlier in the week. I would
like everybody to review the symlink17-common.txt patch that has changes to the FileSystem
API.

This code is not yet tested in great detail and is uploaded only for review purposes. (Also,
this patch does not yet modify the FileContext API.) 


> Create symbolic links in HDFS
> -----------------------------
>
>                 Key: HDFS-245
>                 URL: https://issues.apache.org/jira/browse/HDFS-245
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>         Attachments: 4044_20081030spi.java, designdocv1.txt, HADOOP-4044-strawman.patch,
symlink-0.20.0.patch, symLink1.patch, symLink1.patch, symLink11.patch, symLink12.patch, symLink13.patch,
symLink14.patch, symLink15.txt, symLink15.txt, symlink16-common.patch, symlink16-hdfs.patch,
symlink16-mr.patch, symlink17-common.txt, symlink17-hdfs.txt, symLink4.patch, symLink5.patch,
symLink6.patch, symLink8.patch, symLink9.patch
>
>
> HDFS should support symbolic links. A symbolic link is a special type of file that contains
a reference to another file or directory in the form of an absolute or relative path and that
affects pathname resolution. Programs which read or write to files named by a symbolic link
will behave as if operating directly on the target file. However, archiving utilities can
handle symbolic links specially and manipulate them directly.

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