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  1. Core Server
  2. SERVER-46698

Invariant that operations which are holding open an oplog hole cannot call blocking functions

    • Type: Icon: Improvement Improvement
    • Resolution: Fixed
    • Priority: Icon: Major - P3 Major - P3
    • 4.7.0
    • Affects Version/s: None
    • Component/s: Storage
    • None
    • Fully Compatible
    • Execution Team 2020-05-18

      This is a theoretical class of liveness bugs where operations cannot be replicated if a recovery unit with its commit timestamp set is prevented from committing/aborting.

      Observing whether a recovery unit is keeping a hole open is relatively simple. The harder part is instrumenting all of the possible blocking calls. The initial version should strive to at least cover:

      • Acquiring a lock
      • Acquiring a storage engine ticket
      • Acquiring a flow control ticket

            Assignee:
            james.heppenstall@mongodb.com James Heppenstall
            Reporter:
            daniel.gottlieb@mongodb.com Daniel Gottlieb (Inactive)
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              Created:
              Updated:
              Resolved: