[jira] Updated: (MAPREDUCE-2238) Undeletable build directories

["Todd Lipcon (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-2238?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Todd Lipcon updated MAPREDUCE-2238:
-----------------------------------

    Attachment: mapreduce-2238.txt

I don't know that this is the issue, but the new setPermissions code is definitely prone to races. If two threads tried to setPermissions on the same directory at once, it could definitely end up with an incorrect result.

This patch makes setPermissions threadsafe at least against other invocations of the same method. Worth a shot to apply this and see if the problems go away?

> Undeletable build directories 
> ------------------------------
>
>                 Key: MAPREDUCE-2238
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2238
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: build, test
>    Affects Versions: 0.23.0
>            Reporter: Eli Collins
>         Attachments: mapreduce-2238.txt
>
>
> The MR hudson job is failing, looks like it's due to a test chmod'ing a build directory so the checkout can't clean the build dir.
> https://hudson.apache.org/hudson/job/Hadoop-Mapreduce-trunk/549/console
> Building remotely on hadoop7
> hudson.util.IOException2: remote file operation failed: /grid/0/hudson/hudson-slave/workspace/Hadoop-Mapreduce-trunk at hudson.remoting.Channel@2545938c:hadoop7
> 	at hudson.FilePath.act(FilePath.java:749)
> 	at hudson.FilePath.act(FilePath.java:735)
> 	at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:589)
> 	at hudson.scm.SubversionSCM.checkout(SubversionSCM.java:537)
> 	at hudson.model.AbstractProject.checkout(AbstractProject.java:1116)
> 	at hudson.model.AbstractBuild$AbstractRunner.checkout(AbstractBuild.java:479)
> 	at hudson.model.AbstractBuild$AbstractRunner.run(AbstractBuild.java:411)
> 	at hudson.model.Run.run(Run.java:1324)
> 	at hudson.model.FreeStyleBuild.run(FreeStyleBuild.java:46)
> 	at hudson.model.ResourceController.execute(ResourceController.java:88)
> 	at hudson.model.Executor.run(Executor.java:139)
> Caused by: java.io.IOException: Unable to delete /grid/0/hudson/hudson-slave/workspace/Hadoop-Mapreduce-trunk/trunk/build/test/logs/userlogs/job_20101230131139886_0001/attempt_20101230131139886_0001_m_000000_0

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