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  1. Python Driver
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Test Failure - test_connection_monitoring_pool_checkout_minPoolSize_connection_maxConnecting_threads_blocked_by_maxConnecting_check_out_minPoolSize_connections is flaky

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    • 4.13
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    • Python Drivers
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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?
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      AsyncTestCMAP.test_connection_monitoring_pool_checkout_minPoolSize_connection_maxConnecting_threads_blocked_by_maxConnecting_check_out_minPoolSize_connections is often failing (flaky):

       [2025/02/26 12:55:47.932] _ AsyncTestCMAP.test_connection_monitoring_pool_checkout_minPoolSize_connection_maxConnecting_threads_blocked_by_maxConnecting_check_out_minPoolSize_connections _
       [2025/02/26 12:55:47.932] self = <test.asynchronous.test_connection_monitoring.AsyncTestCMAP testMethod=test_connection_monitoring_pool_checkout_minPoolSize_connection_maxConnecting_threads_blocked_by_maxConnecting_check_out_minPoolSize_connections>
       [2025/02/26 12:55:47.932]     async def run_scenario(self):
       [2025/02/26 12:55:47.932] >       await self.run_scenario(scenario_def, test)
       [2025/02/26 12:55:47.932] test\asynchronous\test_connection_monitoring.py:454:
       [2025/02/26 12:55:47.932] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
       [2025/02/26 12:55:47.932] test\asynchronous\test_connection_monitoring.py:290: in run_scenario
       [2025/02/26 12:55:47.932]     self.check_events(test["events"], test["ignore"])
       [2025/02/26 12:55:47.932] test\asynchronous\test_connection_monitoring.py:204: in check_events
       [2025/02/26 12:55:47.932]     self.check_event(actual, expected)
       [2025/02/26 12:55:47.932] test\asynchronous\test_connection_monitoring.py:192: in check_event
       [2025/02/26 12:55:47.932]     self.check_object(actual, expected)
       [2025/02/26 12:55:47.932] test\asynchronous\test_connection_monitoring.py:177: in check_object
       [2025/02/26 12:55:47.932]     self.assertEqual(type(actual), OBJECT_TYPES[expected["type"]])
       [2025/02/26 12:55:47.932] E   AssertionError: <class 'pymongo.monitoring.ConnectionCreatedEvent'> != <class 'pymongo.monitoring.ConnectionCheckedOutEvent'>
       [2025/02/26 12:55:47.932] ---------------------------- Captured stdout call -----------------------------
       [2025/02/26 12:55:47.932] Failed test: 'threads blocked by maxConnecting check out minPoolSize connections'
       [2025/02/26 12:55:47.932] Operations:
       [2025/02/26 12:55:47.932] {'name': 'ready'}
       [2025/02/26 12:55:47.932] {'name': 'start', 'target': 'thread1'}
       [2025/02/26 12:55:47.932] {'name': 'start', 'target': 'thread2'}
       [2025/02/26 12:55:47.932] {'name': 'wait', 'ms': 200}
       [2025/02/26 12:55:47.932] {'name': 'checkOut', 'thread': 'thread1'}
       [2025/02/26 12:55:47.932] {'name': 'waitForEvent', 'event': 'ConnectionCreated', 'count': 2}
       [2025/02/26 12:55:47.932] {'name': 'checkOut', 'thread': 'thread2'}
       [2025/02/26 12:55:47.932] {'name': 'waitForEvent', 'event': 'ConnectionCheckedOut', 'count': 2}
       [2025/02/26 12:55:47.932] Threads:
       [2025/02/26 12:55:47.932] {'thread1': <test.asynchronous.utils_spec_runner.SpecRunnerTask object at 0x0000013C1F2AC0A0>, 'thread2': <test.asynchronous.utils_spec_runner.SpecRunnerTask object at 0x0000013C1F2AC610>}
       [2025/02/26 12:55:47.932] AsyncConnections:
       [2025/02/26 12:55:47.932] {}
       [2025/02/26 12:55:47.932] Events:
       [2025/02/26 12:55:47.932] PoolCreatedEvent(('localhost', 27017), {'maxPoolSize': 3, 'minPoolSize': 2, 'waitQueueTimeoutMS': 5000.0})
       [2025/02/26 12:55:47.932] PoolReadyEvent(('localhost', 27017))
       [2025/02/26 12:55:47.932] ConnectionCreatedEvent(('localhost', 27017), 1)
       [2025/02/26 12:55:47.932] ConnectionCheckOutStartedEvent(('localhost', 27017))
       [2025/02/26 12:55:47.932] ConnectionCreatedEvent(('localhost', 27017), 2)
       [2025/02/26 12:55:47.932] ConnectionCheckOutStartedEvent(('localhost', 27017))
       [2025/02/26 12:55:47.932] ConnectionReadyEvent(('localhost', 27017), 2, 0.5309999999999491)
       [2025/02/26 12:55:47.932] ConnectionCheckedOutEvent(('localhost', 27017), 2, 0.5620000000000118)
       [2025/02/26 12:55:47.932] ConnectionCreatedEvent(('localhost', 27017), 3)
       [2025/02/26 12:55:47.932] ConnectionReadyEvent(('localhost', 27017), 1, 1.0)
       [2025/02/26 12:55:47.932] ConnectionReadyEvent(('localhost', 27017), 3, 0.5)
       [2025/02/26 12:55:47.932] ConnectionCheckedOutEvent(('localhost', 27017), 3, 1.0159999999999627)
       [2025/02/26 12:55:47.932] Log:
       [2025/02/26 12:55:47.932] Checking event actual: ConnectionCreatedEvent(('localhost', 27017), 1) vs expected: {'type': 'ConnectionCreated', 'address': 42}
       [2025/02/26 12:55:47.932] Checking event actual: ConnectionCreatedEvent(('localhost', 27017), 2) vs expected: {'type': 'ConnectionCreated', 'address': 42}
       [2025/02/26 12:55:47.932] Checking event actual: ConnectionCheckedOutEvent(('localhost', 27017), 2, 0.5620000000000118) vs expected: {'type': 'ConnectionCheckedOut', 'address': 42}
       [2025/02/26 12:55:47.932] Checking event actual: ConnectionCreatedEvent(('localhost', 27017), 3) vs expected: {'type': 'ConnectionCheckedOut', 'address': 42}
      

      https://spruce.mongodb.com/task/mongo_python_driver_test_win64_python3.9_test_7.0_sharded_cluster_auth_ssl_async_61feccacfefaf342ad673bf320b68d839bbdf66c_25_02_26_19_23_02/tests?execution=0&sortBy=STATUS&sortDir=ASC

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