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https://issues.apache.org/jira/browse/MAPREDUCE-2289?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13401418#comment-13401418
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Hudson commented on MAPREDUCE-2289:
-----------------------------------
Integrated in Hadoop-Mapreduce-trunk #1121 (See
[https://builds.apache.org/job/Hadoop-Mapreduce-trunk/1121/])
MAPREDUCE-2289. Permissions race can make getStagingDir fail on local
filesystem (ahmed via tucu) (Revision 1353750)
Result = FAILURE
tucu : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1353750
Files :
* /hadoop/common/trunk/hadoop-mapreduce-project/CHANGES.txt
*
/hadoop/common/trunk/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/java/org/apache/hadoop/mapreduce/JobSubmissionFiles.java
> Permissions race can make getStagingDir fail on local filesystem
> ----------------------------------------------------------------
>
> Key: MAPREDUCE-2289
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-2289
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: job submission
> Affects Versions: 0.22.0
> Reporter: Todd Lipcon
> Assignee: Ahmed Radwan
> Fix For: 1.1.0, 2.0.1-alpha
>
> Attachments: MAPREDUCE-2289_branch-1.0.patch,
> MAPREDUCE-2289_trunk.patch, mapreduce-2289.txt
>
>
> I've observed the following race condition in TestFairSchedulerSystem which
> uses a MiniMRCluster on top of RawLocalFileSystem:
> - two threads call getStagingDir at the same time
> - Thread A checks fs.exists(stagingArea) and sees false
> -- Calls mkdirs(stagingArea, JOB_DIR_PERMISSIONS)
> --- mkdirs calls the Java mkdir API which makes the file with umask-based
> permissions
> - Thread B runs, checks fs.exists(stagingArea) and sees true
> -- checks permissions, sees the default permissions, and throws IOE
> - Thread A resumes and sets correct permissions
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