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  1. Python Driver
  2. PYTHON-4398

[Build Failure] RuntimeError: can't start new thread on Windows Hosts

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    • Type: Icon: Build Failure Build Failure
    • Resolution: Fixed
    • Priority: Icon: Unknown Unknown
    • 4.8, 4.9
    • 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?
      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?

      Show
      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?

      Name of Failure:

      test.test_discovery_and_monitoring.TestUnifiedAuthError.test_Reset_server_and_pool_after_AuthenticationFailure_error
      test.test_discovery_and_monitoring.TestUnifiedAuthMiscCommandError.test_Reset_server_and_pool_after_misc_command_error
      etc.

      Link to task:

      https://spruce.mongodb.com/task/mongo_python_driver_tests_windows_python_version_32_bit__platform~windows_64_vsMulti_small_auth_ssl~auth_ssl_python_version_windows_32~3.10_test_6.0_sharded_cluster_e8900ad9f48d7effe733b30c7aca176dad89fe66_24_04_24_11_27_06?execution=0&sortBy=STATUS&sortDir=ASC

      Context of when and why the failure occurred:

      First failing task was https://spruce.mongodb.com/version/mongo_python_driver_e37394d4029d61f72a02dc465fbfc9afe35a5701/tasks?sorts=STATUS%3AASC%3BBASE_STATUS%3ADESC on 26 March 24 for PYTHON-2723, but it seems unrelated.

      Stack trace:

       [2024/04/24 06:46:16.691] FAILURE: RuntimeError: can't start new thread ()
 [2024/04/24 06:46:16.691] self = <test.test_discovery_and_monitoring.TestUnifiedAuthShutdownError testMethod=test_Reset_server_and_pool_after_shutdown_error_during_authentication>
 [2024/04/24 06:46:16.691]     def test_case(self):
 [2024/04/24 06:46:16.691] >       self.run_scenario(spec)
 [2024/04/24 06:46:16.691] test\unified_format.py:1919: 
 [2024/04/24 06:46:16.691] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
 [2024/04/24 06:46:16.691] test\unified_format.py:1863: in run_scenario
 [2024/04/24 06:46:16.691]     self._run_scenario(spec, uri)
 [2024/04/24 06:46:16.691] test\unified_format.py:1883: in _run_scenario
 [2024/04/24 06:46:16.691]     self.entity_map.create_entities_from_spec(self.TEST_SPEC.get("createEntities", []), uri=uri)
 [2024/04/24 06:46:16.691] test\unified_format.py:600: in create_entities_from_spec
 [2024/04/24 06:46:16.691]     self._create_entity(spec, uri=uri)
 [2024/04/24 06:46:16.691] test\unified_format.py:511: in _create_entity
 [2024/04/24 06:46:16.691]     client = rs_or_single_client(**kwargs)
 [2024/04/24 06:46:16.691] test\utils.py:630: in rs_or_single_client
 [2024/04/24 06:46:16.691]     return _mongo_client(h, p, **kwargs)
 [2024/04/24 06:46:16.691] test\utils.py:594: in _mongo_client
 [2024/04/24 06:46:16.691]     return MongoClient(uri, port, **client_options)
 [2024/04/24 06:46:16.691] pymongo\mongo_client.py:865: in __init__
 [2024/04/24 06:46:16.691]     self._init_background()
 [2024/04/24 06:46:16.691] pymongo\mongo_client.py:883: in _init_background
 [2024/04/24 06:46:16.691]     self._topology = Topology(self._topology_settings)
 [2024/04/24 06:46:16.691] pymongo\topology.py:172: in __init__
 [2024/04/24 06:46:16.691]     executor.open()
 [2024/04/24 06:46:16.691] pymongo\periodic_executor.py:98: in open
 [2024/04/24 06:46:16.691]     thread.start()
 [2024/04/24 06:46:16.691] _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
 [2024/04/24 06:46:16.691] self = <Thread(pymongo_events_thread, initial daemon)>
 [2024/04/24 06:46:16.691]     def start(self):
 [2024/04/24 06:46:16.691]         """Start the thread's activity.
 [2024/04/24 06:46:16.691]     
 [2024/04/24 06:46:16.691]         It must be called at most once per thread object. It arranges for the
 [2024/04/24 06:46:16.691]         object's run() method to be invoked in a separate thread of control.
 [2024/04/24 06:46:16.691]     
 [2024/04/24 06:46:16.691]         This method will raise a RuntimeError if called more than once on the
 [2024/04/24 06:46:16.691]         same thread object.
 [2024/04/24 06:46:16.691]     
 [2024/04/24 06:46:16.691]         """
 [2024/04/24 06:46:16.691]         if not self._initialized:
 [2024/04/24 06:46:16.691]             raise RuntimeError("thread.__init__() not called")
 [2024/04/24 06:46:16.691]     
 [2024/04/24 06:46:16.691]         if self._started.is_set():
 [2024/04/24 06:46:16.691]             raise RuntimeError("threads can only be started once")
 [2024/04/24 06:46:16.691]     
 [2024/04/24 06:46:16.691]         with _active_limbo_lock:
 [2024/04/24 06:46:16.691]             _limbo[self] = self
 [2024/04/24 06:46:16.691]         try:
 [2024/04/24 06:46:16.691] >           _start_new_thread(self._bootstrap, ())
 [2024/04/24 06:46:16.691] E           RuntimeError: can't start new thread
 [2024/04/24 06:46:16.691] C:\python\32\Python311\Lib\threading.py:957: RuntimeError

            Assignee:
            shane.harvey@mongodb.com Shane Harvey
            Reporter:
            steve.silvester@mongodb.com Steve Silvester
            Votes:
            0 Vote for this issue
            Watchers:
            3 Start watching this issue

              Created:
              Updated:
              Resolved: