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  1. Apache Tez
  2. TEZ-3894

Tez intermediate outputs implicitly rely on permissive umask for shuffle

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 0.9.2
    • Component/s: None
    • Labels:
      None
    • Target Version/s:

      Description

      Tez does not explicitly set the permissions of intermediate output files for shuffle. In a secure cluster the shuffle service is running as a different user than the task, so the output files require group readability in order to serve up the data during the shuffle phase. If the umask is too restrictive (e.g.: 077) then the task's file.out and file.out.index permissions can be too restrictive to allow the shuffle handler to access them.

        Attachments

        1. TEZ-3894.001.patch
          34 kB
          Jason Darrell Lowe

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              • Assignee:
                jlowe Jason Darrell Lowe
                Reporter:
                jlowe Jason Darrell Lowe
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                • Created:
                  Updated:
                  Resolved: