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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9357) Fallback to default authority if not specified in FileContext
Date Tue, 05 Mar 2013 00:47:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9357?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13592864#comment-13592864
] 

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/12571995/hadoop-9357-2.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 tests included appear to have a timeout.{color}

    {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/2259//testReport/
Console output: https://builds.apache.org/job/PreCommit-HADOOP-Build/2259//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
>
>
> 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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