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  1. WiredTiger
  2. WT-6225

Retry reading when the reader run concurrently with committing or rollbacking of prepared updates

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: WT10.0.0, 4.4.0-rc7, 4.7.0
    • Component/s: None
    • Labels:
      None
    • Story Points:
      5
    • Sprint:
      Storage - Ra 2020-05-18, Storage - Ra 2020-06-01

      Description

      In WT-6168, we encountered a data mismatch problem caused by the reader reading the history store concurrently to a prepared update committing or rollbacking, which changes the content of the history store the reader is about to read.

      The decision is that we will try to detect this case and retry.

        Attachments

          Issue Links

          duplicates

          Bug - A problem which impairs or prevents the functions of the product. WT-6228 Append the update fetched from the history store to the end of the chain

          • Major - P3 - Major loss of function.
          • Closed
          is depended on by

          Build Failure - WT-6148 Add new update to the history store with valid stop timestamp

          • Major - P3 - Major loss of function.
          • Closed

          Build Failure - WT-6185 Insert full updates into the history store in some corner cases and add a history store c test

          • Major - P3 - Major loss of function.
          • Closed

          Build Failure - WT-6191 Missing prepared update during commit/rollback for variable length column store in format-stress-sanitizer-smoke-test

          • Major - P3 - Major loss of function.
          • Closed

            Activity

              People

              Assignee:
              chenhao.qu Chenhao Qu
              Reporter:
              chenhao.qu Chenhao Qu
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                Dates

                Created:
                Updated:
                Resolved: