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From "Vinod Kumar Vavilapalli (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9357) Fallback to default authority if not specified in FileContext
Date Fri, 29 Mar 2013 05:57:16 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13617112#comment-13617112
] 

Vinod Kumar Vavilapalli commented on HADOOP-9357:
-------------------------------------------------

Yes, the 4 test-cases are all failing for me too, with same exception message.
                
> Fallback to default authority if not specified in FileContext
> -------------------------------------------------------------
>
>                 Key: HADOOP-9357
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9357
>             Project: Hadoop Common
>          Issue Type: Bug
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>            Priority: Minor
>             Fix For: 2.0.4-alpha
>
>         Attachments: hadoop-9357-1.patch, hadoop-9357-2.patch, hadoop-9357-3.patch
>
>
> Currently, FileContext adheres rather strictly to RFC2396 when it comes to parsing absolute
URIs (URIs with a scheme). If a user asks for a URI like "hdfs:///tmp", FileContext will error
while FileSystem will add the authority of the default FS (e.g. turn it into "hdfs://defaultNN:port/tmp").

> This is technically correct, but FileSystem's behavior is nicer for users and okay based
on 5.2.3 in the RFC, so lets do it in FileContext too:
> {noformat}
> For backwards
> compatibility, an implementation may work around such references
> by removing the scheme if it matches that of the base URI and the
> scheme is known to always use the  syntax.  The parser
> can then continue with the steps below for the remainder of the
> reference components.  Validating parsers should mark such a
> misformed relative reference as an error.
> {noformat}

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