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Date: Fri, 1 Jun 2012 21:37:23 +0000 (UTC)
From: "Daryn Sharp (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
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Subject: [jira] [Commented] (HADOOP-8409) Address Hadoop path related issues
 on Windows
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    [ https://issues.apache.org/jira/browse/HADOOP-8409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13287693#comment-13287693 ] 

Daryn Sharp commented on HADOOP-8409:
-------------------------------------

To further clarify, nothing else that uses a {{Path}} is prepared to handle fragments, so the fragment will be silently munched off the uri.  In the prior example, the path effectively becomes "." which is the cwd.  Trying to remove a qualified path such as "some/path/#1" would remove the parent directory.  I think it's prudent to not spread the DC's semantics of fragments throughout hadoop when nothing else is prepared to deal with fragments.
                
> Address Hadoop path related issues on Windows
> ---------------------------------------------
>
>                 Key: HADOOP-8409
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8409
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs, test, util
>    Affects Versions: 1.0.0
>            Reporter: Ivan Mitic
>            Assignee: Ivan Mitic
>         Attachments: HADOOP-8409-branch-1-win.patch
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> There are multiple places in prod and test code where Windows paths are not handled properly. From a high level this could be summarized with:
> 1. Windows paths are not necessarily valid DFS paths (while Unix paths are)
> 2. Windows paths are not necessarily valid URIs (while Unix paths are)
> #1 causes a number of tests to fail because they implicitly assume that local paths are valid DFS paths (by extracting the DFS test path from for example "test.build.data" property)
> #2 causes issues when URIs are directly created on path strings passed in by the user

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