Possible incorrect values for WT_STAT_SESSION_BYTES_READ

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    • Type: Bug
    • Resolution: Done
    • Priority: Major - P3
    • None
    • Affects Version/s: 4.4.12
    • Component/s: None
    • Storage Engines - 2023-01-10
    • None

      SERVER-69797 is investigating a negative number being reported for MongoDB's bytesRead metric, which comes from WT_STAT_SESSION_BYTES_READ. One possible cause of this could be WT returning some incorrectly large values (close to or greater than the maximum value of a signed 64-bit integer) for this statistic, which then get added together in MongoDB resulting in an overflow.

              Assignee:
              Luke Pearson
              Reporter:
              Gregory Noma
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                Created:
                Updated:
                Resolved: