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From "Hadoop QA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-7268) FileContext.getLocalFSFileContext() behavior needs to be fixed w.r.t tokens
Date Mon, 09 May 2011 21:14:05 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7268?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13030899#comment-13030899

Hadoop QA commented on HADOOP-7268:

+1 overall.  Here are the results of testing the latest attachment 
  against trunk revision 1101199.

    +1 @author.  The patch does not contain any @author tags.

    +1 tests included.  The patch appears to include 3 new or modified tests.

    +1 javadoc.  The javadoc tool did not generate any warning messages.

    +1 javac.  The applied patch does not increase the total number of javac compiler warnings.

    +1 findbugs.  The patch does not introduce any new Findbugs (version 1.3.9) warnings.

    +1 release audit.  The applied patch does not increase the total number of release audit

    +1 core tests.  The patch passed core unit tests.

    +1 contrib tests.  The patch passed contrib unit tests.

    +1 system test framework.  The patch passed system test framework compile.

Test results: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/420//testReport/
Findbugs warnings: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/420//artifact/trunk/build/test/findbugs/newPatchFindbugsWarnings.html
Console output: https://builds.apache.org/hudson/job/PreCommit-HADOOP-Build/420//console

This message is automatically generated.

> FileContext.getLocalFSFileContext() behavior needs to be fixed w.r.t tokens
> ---------------------------------------------------------------------------
>                 Key: HADOOP-7268
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7268
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: fs, security
>    Affects Versions: 0.23.0
>            Reporter: Devaraj Das
>            Assignee: Jitendra Nath Pandey
>             Fix For: 0.23.0
>         Attachments: HADOOP-7268.1.patch
> FileContext.getLocalFSFileContext() instantiates a FileContext object upon the first
call to it, and for all subsequent calls returns back that instance (a static localFsSingleton
object). With security turned on, this causes some hard-to-debug situations when that fileContext
is used for doing HDFS operations. This is because the UserGroupInformation is stored when
a FileContext is instantiated. If the process in question wishes to use different UserGroupInformation
objects for different file system operations (where the corresponding FileContext objects
are obtained via calls to FileContext.getLocalFSFileContext()), it doesn't work.

This message is automatically generated by JIRA.
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