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  1. Hadoop YARN
  2. YARN-8404

Timeline event publish need to be async to avoid Dispatcher thread leak in case ATS is down

    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Blocker
    • Resolution: Fixed
    • Affects Version/s: 3.1.0, 3.0.2
    • Fix Version/s: 2.10.0, 3.2.0, 3.1.1, 3.0.4
    • Component/s: None
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      It is observed that if ATS1/1.5 daemon is not running, RM recovery is delayed as long as timeline client get timed out for each applications. By default, timed out will take around 5 mins. If completed applications are more then amount of time RM will wait is (number of completed applications in a cluster * 5 minutes) which is kind of hanged.

      Primary reason for this behavior is YARN-3044 YARN-4129 which refactor existing system metric publisher. This refactoring made appFinished event as synchronous which was asynchronous earlier.

        Attachments

        1. YARN-8404.01.patch
          1 kB
          Rohith Sharma K S

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              • Assignee:
                rohithsharma Rohith Sharma K S
                Reporter:
                rohithsharma Rohith Sharma K S
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                • Created:
                  Updated:
                  Resolved: