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  1. HBase
  2. HBASE-5844

Delete the region servers znode after a regions server crash

          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
                5 kB
                stack
              4. 5844.v3.patch
                6 kB
                Nicolas Liochon
              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
                • Patch Available

                  Activity

                    People

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

                      • Created:
                        Updated:
                        Resolved: