[jira] [Created] (MAPREDUCE-5210) Job submission has strict permission validation

["Amareshwari Sriramadasu (JIRA)" <ji...@apache.org>]

Amareshwari Sriramadasu created MAPREDUCE-5210:
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             Summary: Job submission has strict permission validation
                 Key: MAPREDUCE-5210
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-5210
             Project: Hadoop Map/Reduce
          Issue Type: Bug
            Reporter: Amareshwari Sriramadasu


The following code in JobSubmissionFiles.java mandates strict permission on job submission :

{noformat}
    if (fs.exists(stagingArea)) {
      FileStatus fsStatus = fs.getFileStatus(stagingArea);
      String owner = fsStatus.getOwner();
      if (!(owner.equals(currentUser) || owner.equals(realUser))) {
         throw new IOException("The ownership on the staging directory " +
                      stagingArea + " is not as expected. " + 
                      "It is owned by " + owner + ". The directory must " +
                      "be owned by the submitter " + currentUser + " or " +
                      "by " + realUser);
      }

{noformat}

For file systems such as S3, which do not have permission concept, user can never submit a job with staging area in S3. 

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