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Date: Wed, 27 Mar 2013 02:37:15 +0000 (UTC)
From: "Hadoop QA (JIRA)" <jira@apache.org>
To: common-issues@hadoop.apache.org
Message-ID: <JIRA.12635177.1362422404950.60807.1364351835598@arcas>
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Subject: [jira] [Commented] (HADOOP-9357) Fallback to default authority if
 not specified in FileContext
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    [ https://issues.apache.org/jira/browse/HADOOP-9357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13614832#comment-13614832 ] 

Hadoop QA commented on HADOOP-9357:
-----------------------------------

{color:green}+1 overall{color}.  Here are the results of testing the latest attachment 
  http://issues.apache.org/jira/secure/attachment/12575626/hadoop-9357-3.patch
  against trunk revision .

    {color:green}+1 @author{color}.  The patch does not contain any @author tags.

    {color:green}+1 tests included{color}.  The patch appears to include 1 new or modified test files.

    {color:green}+1 javac{color}.  The applied patch does not increase the total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  The javadoc tool did not generate any warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in hadoop-common-project/hadoop-common.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: https://builds.apache.org/job/PreCommit-HADOOP-Build/2368//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/2368//console

This message is automatically generated.
                
> 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: 3.0.0
>
>         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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