Hadoop Common
  1. Hadoop Common
  2. HADOOP-8279

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

    Details

    • Type: Improvement Improvement
    • Status: Resolved
    • Priority: Major 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.
      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:
              Todd Lipcon
              Reporter:
              Mingjie Lai
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              Dates

              • Created:
                Updated:
                Resolved:

                Development