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  1. HBase
  2. HBASE-5844

Delete the region servers znode after a regions server crash

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    Details

    • Type: Improvement
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 0.95.2
    • Fix Version/s: 0.95.0
    • Component/s: regionserver, scripts
    • Labels:
      None
    • Hadoop Flags:
      Reviewed
    • Tags:
      0.96notable

      Description

      today, if the regions server crashes, its znode is not deleted in ZooKeeper. So the recovery process will stop only after a timeout, usually 30s.

      By deleting the znode in start script, we remove this delay and the recovery starts immediately.

        Attachments

        1. 5844.v1.patch
          5 kB
          Nicolas Liochon
        2. 5844.v2.patch
          5 kB
          Nicolas Liochon
        3. 5844.v3.patch
          6 kB
          Nicolas Liochon
        4. 5844.v3.patch
          5 kB
          Michael Stack
        5. 5844.v4.patch
          6 kB
          Nicolas Liochon

          Issue Links

          is required by

          Umbrella - An overarching type made of sub-tasks HBASE-5843 Improve HBase MTTR - Mean Time To Recover

          • Major - Major loss of function.
          • Closed
          relates to

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-5075 regionserver crashed and failover

          • Major - Major loss of function.
          • Resolved

          Improvement - An improvement or enhancement to an existing feature or task. HBASE-5926 Delete the master znode after a master crash

          • Minor - Minor loss of function, or other problem where easy workaround is present.
          • Closed

          Task - A task that needs to be done. HBASE-7386 Investigate providing some supervisor support for znode deletion

          • Blocker - Blocks development and/or testing work, production could not run
          • Resolved

            Activity

              People

              • Assignee:
                nkeywal Nicolas Liochon
                Reporter:
                nkeywal Nicolas Liochon
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                Dates

                • Created:
                  Updated:
                  Resolved: