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  1. Hadoop Common
  2. HADOOP-8279

Auto-HA: Allow manual failover to be invoked from zkfc.

    Details

    • Type: Improvement
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: Auto Failover (HDFS-3042)
    • Fix Version/s: Auto Failover (HDFS-3042)
    • Component/s: auto-failover, ha
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      HADOOP-8247 introduces a configure flag to prevent potential status inconsistency between zkfc and namenode, by making auto and manual failover mutually exclusive.

      However, as described in 2.7.2 section of design doc at HDFS-2185, we should allow manual and auto failover co-exist, by:

      • adding some rpc interfaces at zkfc
      • manual failover shall be triggered by haadmin, and handled by zkfc if auto failover is enabled.

        Attachments

        1. hadoop-8279.txt
          82 kB
          Todd Lipcon
        2. hadoop-8279.txt
          82 kB
          Todd Lipcon
        3. hadoop-8279.txt
          81 kB
          Todd Lipcon
        4. hadoop-8279.txt
          76 kB
          Todd Lipcon
        5. hadoop-8279.txt
          68 kB
          Todd Lipcon

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              • Assignee:
                tlipcon Todd Lipcon
                Reporter:
                mingjielai Mingjie Lai
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                Dates

                • Created:
                  Updated:
                  Resolved: