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  1. Hadoop YARN
  2. YARN-149 [Umbrella] ResourceManager (RM) Fail-over
  3. YARN-1641

ZK store should attempt a write periodically to ensure it is still Active

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Details

    • Sub-task
    • Status: Closed
    • Major
    • Resolution: Fixed
    • 2.3.0
    • 2.4.0
    • resourcemanager
    • None
    • Reviewed

    Description

      Fencing in ZK store kicks in when the RM tries to write something to the store. If the RM doesn't write anything to the store, it doesn't get fenced and can continue to assume being the Active.

      By periodically writing a file (say, every RM_ZK_TIMEOUT_MS seconds), we can ensure it gets fenced.

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            kasha Karthik Kambatla Assign to me
            kasha Karthik Kambatla
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