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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-4964) JobLocalizer#localizeJobFiles can potentially write job.xml to the wrong user's directory
Date Sun, 27 Jan 2013 01:49:12 GMT
Karthik Kambatla created MAPREDUCE-4964:
-------------------------------------------

             Summary: 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


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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