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  1. Hadoop YARN
  2. YARN-4254

ApplicationAttempt stuck for ever due to UnknownHostException

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.3.0
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      Scenario
      =======
      1. RM HA and 5 NMs available in cluster and are working fine
      2. Add one more NM to the same cluster but RM /etc/hosts not updated.
      3. Submit application to the same cluster

      If Am get allocated to the newly added NM the application attempt will get stuck for ever.User will not get to know why the same happened.

      Impact

      1.RM logs gets overloaded with exception
      2.Application gets stuck for ever.

      Handling suggestion YARN-261 allows for Fail application attempt .
      If we fail the same next attempt could get assigned to another NM.

        Attachments

        1. 0001-YARN-4254.patch
          3 kB
          Bibin Chundatt
        2. Logs.txt
          15 kB
          Bibin Chundatt
        3. Test.patch
          2 kB
          Bibin Chundatt
        4. YARN-4254.002.patch
          8 kB
          Bibin Chundatt
        5. YARN-4254.003.patch
          8 kB
          Bibin Chundatt

          Activity

            People

            • Assignee:
              bibinchundatt Bibin Chundatt
              Reporter:
              bibinchundatt Bibin Chundatt
            • Votes:
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              Dates

              • Created:
                Updated:
                Resolved: