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https://issues.apache.org/jira/browse/MAPREDUCE-1744?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13180785#comment-13180785
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Hudson commented on MAPREDUCE-1744:
-----------------------------------
Integrated in Hadoop-Common-0.23-Commit #345 (See
[https://builds.apache.org/job/Hadoop-Common-0.23-Commit/345/])
Merge -r 1227237:1227238 from trunk to branch. FIXES: MAPREDUCE-1744
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1227789
Files :
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/Job.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/filecache/DistributedCache.java
*
/hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-jobclient/src/test/java/org/apache/hadoop/mapreduce/v2/TestMROldApiJobs.java
> 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: Dick King
> Fix For: 0.23.1, 1.0.0
>
> Attachments: BZ-3503564--2010-05-06.patch,
> MAPREDUCE-1744-0.23-trunk.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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