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  1. Core Server
  2. SERVER-19255

Listener::waitUntilListening may return before listening has started

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    Details

    • Type: Bug
    • Status: Closed
    • Priority: Critical - P2
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: 3.0.5, 3.1.6
    • Component/s: Internal Code, Networking
    • Labels:
      None
    • Backwards Compatibility:
      Fully Compatible
    • Operating System:
      ALL
    • Backport Completed:
    • Epic Link:
    • Sprint:
      Platform 6 07/17/15

      Description

      The waitUntilListening function uses a condition wait with a predicate based on the bool Listener::_ready. Unfortunately, this variable is not initialized in the constructor, meaning that its value is indeterminate. In the case where it is indeterminately a numeric value interpretable as 'false', callers to waitUntilListening will return immediately, before listening has actually started.

      Note that repl::isSelf depends on the proper functioning of waitUntilListening, since otherwise it may attempt to connect before the socket is listening, leading to a false negative.

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              • Created:
                Updated:
                Resolved: