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  1. Core Server
  2. SERVER-28688

Deadlock between shutdown and stepdown

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Major - P3
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.4.5, 3.5.6
    • Component/s: Replication
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Backport Completed:
    • Sprint:
      Repl 2017-05-08
    • Linked BF Score:
      0

      Description

      Stepdown calls ReplicationCoordinatorExternalStateImpl::startProducerIfStopped, which takes _threadMutex while holding the global exclusive lock. Shutdown calls ReplicationCoordinatorExternalStateImpl::shutdown which takes _threadMutex and then does a database read by calling _storageInterface->getAppliedThrough.

      We should probably be doing the database reads/writes in ReplicationCoordinatorExternalStateImpl::shutdown after releasing _threadMutex.

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                • Created:
                  Updated:
                  Resolved: