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  1. WiredTiger
  2. WT-4101

Don't abort the eviction server during session verify when oldest_timestamp is held back

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.6.9, 4.0.1, 4.1.1, WT3.2.0
    • Component/s: None
    • Labels:
    • Story Points:
      8
    • Sprint:
      Storage Non-NYC 2018-06-18, Storage Non-NYC 2018-07-02
    • Backport Requested:
      v3.6

      Description

      When the oldest_timestamp is held back, and stable_timestamp moves forward after the new snapshot is taken for updates, the page eviction would abort during WT_SESSION.verify. This issue became more visible after SERVER-31767. It's only specific to MongoDB DEBUG builds (and corresponding WiredTiger diagnostic builds).

      It would be helpful to add a Python test to cover this scenario:

      1. hold back oldest_timestamp
      2. insert data
      3. create a checkpoint
      4. run verify. 

        Attachments

          Issue Links

          is depended on by

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-35259 Activate the snapshot window by setting the default to non-zero

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

          Task - A task that needs to be done. SERVER-31767 Provide a window of snapshot history that is accessible for PIT reads

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

          Improvement - An improvement or enhancement to an existing feature or task. SERVER-35251 Set the snapshot window default size to zero temporarily

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

            Activity

              People

              • Assignee:
                vamsi.krishna Vamsi Boyapati
                Reporter:
                luke.chen Luke Chen
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                Dates

                • Created:
                  Updated:
                  Resolved: