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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9357) Fallback to default authority if not specified in FileContext
Date Thu, 04 Apr 2013 10:49:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13622014#comment-13622014
] 

Hudson commented on HADOOP-9357:
--------------------------------

Integrated in Hadoop-Yarn-trunk #174 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk/174/])
    Revert initial HADOOP-9357 patch. (Revision 1464182)
Revert YARN-516 per HADOOP-9357. (Revision 1464181)

     Result = SUCCESS
eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1464182
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/FileContext.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/fs/Path.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/fs/FileContextMainOperationsBaseTest.java

eli : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1464181
Files : 
* /hadoop/common/trunk/hadoop-yarn-project/CHANGES.txt
* /hadoop/common/trunk/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-nodemanager/src/test/java/org/apache/hadoop/yarn/server/nodemanager/containermanager/localizer/TestContainerLocalizer.java

                
> 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
>    Affects Versions: 2.0.0-alpha
>            Reporter: Andrew Wang
>            Assignee: Andrew Wang
>            Priority: Minor
>         Attachments: hadoop-9357-1.patch, hadoop-9357-2.patch, hadoop-9357-3.patch, hadoop-9357-testfixup.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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