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  1. HBase
  2. HBASE-20828 Finish-up AMv2 Design/List of Tenets/Specification of operation
  3. HBASE-21463

The checkOnlineRegionsReport can accidentally complete a TRSP

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    Details

    • Type: Sub-task
    • Status: Resolved
    • Priority: Critical
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0.0-alpha-1, 2.2.0
    • Component/s: amv2
    • Labels:
      None
    • Hadoop Flags:
      Reviewed

      Description

      On our testing cluster, we observe a race condition:
      1. A regionServerReport request is built
      2. A TRSP is scheduled to reopen the region
      3. The region is closed at RS side
      4. The OpenRegionProcedure is created
      5. The regionServerReport generated at step 1 is executed, and we find that the region is opened on the RS, so we update the region state to OPEN.
      6. The OpenRegionProcedure notices that the region has already been in the OPEN state so gives up and finishes.
      7. The TRSP finishes.
      8. The region is recorded as OPEN on the RS but actually not, and can not recover unless we use HBCK2.

        Attachments

        1. HBASE-21463.patch
          22 kB
          Duo Zhang
        2. HBASE-21463-UT.patch
          11 kB
          Duo Zhang
        3. HBASE-21463-v1.patch
          36 kB
          Duo Zhang
        4. HBASE-21463-v2.patch
          36 kB
          Duo Zhang

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            • Assignee:
              zhangduo Duo Zhang
              Reporter:
              zhangduo Duo Zhang

              Dates

              • Created:
                Updated:
                Resolved:

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