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  1. Python Driver
  2. PYTHON-4636

Avoid blocking I/O calls in async code paths

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    • Type: Icon: Bug Bug
    • Resolution: Fixed
    • Priority: Icon: Critical - P2 Critical - P2
    • 4.10.2
    • Affects Version/s: None
    • Component/s: None
    • None
    • Python Drivers
    • Not Needed
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      1. What would you like to communicate to the user about this feature?
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      3. Which versions of the driver/connector does this apply to?

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      1. What would you like to communicate to the user about this feature? 2. Would you like the user to see examples of the syntax and/or executable code and its output? 3. Which versions of the driver/connector does this apply to?

      The wait_for_read function makes a blocking sync call to socket_checker.select in the async code path:
      https://github.com/mongodb/mongo-python-driver/blob/ffa65554852e84a5b92858f85d1d1784525edb72/pymongo/asynchronous/network.py#L378

      We should avoid these calls since they block the loop.

            Assignee:
            noah.stapp@mongodb.com Noah Stapp
            Reporter:
            shane.harvey@mongodb.com Shane Harvey
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              Created:
              Updated:
              Resolved: