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Posted to mapreduce-issues@hadoop.apache.org by "Hadoop QA (Commented) (JIRA)" <ji...@apache.org> on 2012/01/03 20:52:39 UTC
[jira] [Commented] (MAPREDUCE-1744) DistributedCache creates its
own FileSytem instance when adding a file/archive to the path
[ https://issues.apache.org/jira/browse/MAPREDUCE-1744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13178983#comment-13178983 ]
Hadoop QA commented on MAPREDUCE-1744:
--------------------------------------
+1 overall. Here are the results of testing the latest attachment
http://issues.apache.org/jira/secure/attachment/12509328/MAPREDUCE-1744-0.23-trunk.patch
against trunk revision .
+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 eclipse:eclipse. The patch built with eclipse:eclipse.
+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 warnings.
+1 core tests. The patch passed unit tests in .
+1 contrib tests. The patch passed contrib unit tests.
Test results: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1528//testReport/
Console output: https://builds.apache.org/job/PreCommit-MAPREDUCE-Build/1528//console
This message is automatically generated.
> DistributedCache creates its own FileSytem instance when adding a file/archive to the path
> ------------------------------------------------------------------------------------------
>
> Key: MAPREDUCE-1744
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-1744
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Reporter: Dick King
> Assignee: Alejandro Abdelnur
> Attachments: BZ-3503564--2010-05-06.patch, MAPREDUCE-1744-0.23-trunk.patch, MAPREDUCE-1744.patch, h1744.patch, mapred-1744-1.patch, mapred-1744-2.patch, mapred-1744-3.patch, mapred-1744.patch
>
>
> According to the contract of {{UserGroupInformation.doAs()}} the only required operations within the {{doAs()}} block are the
> creation of a {{JobClient}} or getting a {{FileSystem}} .
> The {{DistributedCache.add(File/Archive)ToClasspath()}} methods create a {{FileSystem}} instance outside of the {{doAs()}} block,
> this {{FileSystem}} instance is not in the scope of the proxy user but of the superuser and permissions may make the method
> fail.
> One option is to overload the methods above to receive a filesystem.
> Another option is to do obtain the {{FileSystem}} within a {{doAs()}} block, for this it would be required to have the proxy
> user set in the passed configuration.
> The second option seems nicer, but I don't know if the proxy user is as a property in the jobconf.
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