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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4044) Create symbolic links in HDFS
Date Tue, 07 Oct 2008 21:54:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4044?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12637670#action_12637670
] 

Doug Cutting commented on HADOOP-4044:
--------------------------------------

> I was only wondering why we are ok with compromise in one aspect and not about the other.

What compromise is this?

> it makes perfect sense. My objection has been calling it open() and returning link some
times.

So it was all about the method name?  Okay, then please suggest new method names and return
type names, rather than suggesting we use exceptions to return normal data.  I personally
find the 'xOry' names useful in pseudo code, when I'm trying to make a point, but a bit verbose
in real code.  We don't call FileStatus NameAndModifiedDateAndOwnerAnd....

> This also allows HDFS to use exceptions since we don't want to change the names.

What?  I don't follow your logic here.  Why can't HDFS change method names?



> Create symbolic links in HDFS
> -----------------------------
>
>                 Key: HADOOP-4044
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4044
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: dfs
>            Reporter: dhruba borthakur
>            Assignee: dhruba borthakur
>         Attachments: symLink1.patch, symLink1.patch, 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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