HBase
  1. HBase
  2. HBASE-5844

Delete the region servers znode after a regions server crash

        Details

        • Type: Improvement Improvement
        • Status: Closed
        • Priority: Major 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.

          1. Text File
            5844.v4.patch
            6 kB
            Nicolas Liochon
          2. Text File
            5844.v3.patch
            5 kB
            stack
          3. Text File
            5844.v3.patch
            6 kB
            Nicolas Liochon
          4. Text File
            5844.v2.patch
            5 kB
            Nicolas Liochon
          5. Text File
            5844.v1.patch
            5 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.
            • Resolved
            relates to

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

            • Major - Major loss of function.
            • Open

            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
            • Open

              Activity

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                People

                • Assignee:
                  Nicolas Liochon
                  Reporter:
                  Nicolas Liochon
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                  Dates

                  • Created:
                    Updated:
                    Resolved:

                    Development