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  1. HBase
  2. HBASE-19989

READY_TO_MERGE and READY_TO_SPLIT do not update region state correctly

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    Details

    • Type: Bug
    • Status: Resolved
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: 1.3.1, 1.4.1
    • Fix Version/s: 1.3.2, 1.4.3
    • Component/s: None
    • Labels:
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    • Hadoop Flags:
      Reviewed

      Description

      Region state transitions do not work correctly for READY_TO_MERGE/SPLIT.  Thiruvel Thirumoolan and I noticed this is due to break statements being in the wrong place in AssignmentManager.  This allows a race condition for example in which one of the regions being merged could be moved concurrently, resulting in the merge transaction failing and then double assignment and/or dataloss.  This bug appears to only affect branch-1 (for example 1.3 and 1.4) and not branch-2 as the relevant code in AM has since been rewritten.

        Attachments

        1. HBASE-19989-ADDENDUM-branch-1.patch
          3 kB
          Ben Lau
        2. HBASE-19989-branch-1.patch
          6 kB
          Ben Lau

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            People

            • Assignee:
              benlau Ben Lau
              Reporter:
              benlau Ben Lau
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              Dates

              • Created:
                Updated:
                Resolved: