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  1. Core Server
  2. SERVER-40820

Jstestfuzz suite to introduce spurious write conflicts

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    • Fully Compatible
    • v5.0, v4.4
    • Execution Team 2021-02-22, Execution Team 2021-03-08

    Description

      In an attempt to reproduce some failures, I noticed we have remarkably little coverage of handling spurious WriteConflicts, especially in operations where they are normally unexpected. While most of our code is designed to handle such cases, I think we should exercise these code paths more often, since WiredTiger can return WT_ROLLBACK at any time.

      I would suggest enabling the WTWriteConflictException and WTWriteConflictExceptionForReads fail points to a very low frequency (e.g. < 1%) so that most operations can make some progress.

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              bynn.lee@mongodb.com Bynn Lee
              louis.williams@mongodb.com Louis Williams
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