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  1. Core Server
  2. SERVER-37367

Notification::waitFor is not interruptible in 3.4

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    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Sprint:
      Sharding 2018-10-22
    • Linked BF Score:
      1

      Description

      The Notification::waitFor call is not interruptible in the 3.4 branch and this could potentially cause deadlock at config server stepdown followed immediately by step-up, due to its usage in the sharding Balancer code. While the chance for such a deadlock is extremely rare, making Notification::waitFor interruptible should be very safe to include in 3.4.

      We can just pick-up the changes to notification.h from this change.

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