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From "Arun C Murthy (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-4964) JobLocalizer#localizeJobFiles can potentially write job.xml to the wrong user's directory
Date Tue, 29 Jan 2013 17:37:13 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-4964?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Arun C Murthy updated MAPREDUCE-4964:
-------------------------------------

    Status: Open  (was: Patch Available)

[~kkambatl] I checked - TestTrackerDistributedCacheManager works for me. Can you please make
sure there is no regression? Thanks.
                
> JobLocalizer#localizeJobFiles can potentially write job.xml to the wrong user's directory
> -----------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-4964
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-4964
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1
>    Affects Versions: 1.1.1
>            Reporter: Karthik Kambatla
>            Assignee: Karthik Kambatla
>         Attachments: MR-4964.patch, MR-4964.patch
>
>
> In the following code, if jobs corresponding to different users (X and Y) are localized
simultaneously, it is possible that jobconf can be written to the wrong user's directory.
(X's job.xml can be written to Y's directory)
> {code}
>   public void localizeJobFiles(JobID jobid, JobConf jConf,
>       Path localJobTokenFile, TaskUmbilicalProtocol taskTracker)
>       throws IOException, InterruptedException {
>     localizeJobFiles(jobid, jConf,
>         lDirAlloc.getLocalPathForWrite(JOBCONF, ttConf), localJobTokenFile,
>         taskTracker);
>   }
> {code}

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