Unknown In PYTHON-2268, we added a check to print out MongoClients which still have running threads at the end of the test suite. This change has worked great for identifying unclosed clients, however it often produces a false positive for the main test client created by ClientContext. For example:
[2022/03/10 22:52:17.548] Topology <Topology <TopologyDescription id: 622a80236291574d05a59959, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Standalone, rtt: 0.0005760174894780436>]>> has THREADS RUNNING: [<PeriodicExecutor(name=pymongo_server_monitor_thread) object at 0x7f5b2413eb70>, <PeriodicExecutor(name=pymongo_server_rtt_thread) object at 0x7f5b2414d080>], created at: File "setup.py", line 345, in <module> [2022/03/10 22:52:17.548] **extra_opts [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/venv-encryption/lib64/python3.6/dist-packages/setuptools/__init__.py", line 153, in setup [2022/03/10 22:52:17.549] return distutils.core.setup(**attrs) [2022/03/10 22:52:17.549] File "/usr/lib64/python3.6/distutils/core.py", line 148, in setup [2022/03/10 22:52:17.549] dist.run_commands() [2022/03/10 22:52:17.549] File "/usr/lib64/python3.6/distutils/dist.py", line 955, in run_commands [2022/03/10 22:52:17.549] self.run_command(cmd) [2022/03/10 22:52:17.549] File "/usr/lib64/python3.6/distutils/dist.py", line 974, in run_command [2022/03/10 22:52:17.549] cmd_obj.run() [2022/03/10 22:52:17.549] File "setup.py", line 122, in run [2022/03/10 22:52:17.549] result = runner.run(suite) [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/test/__init__.py", line 1096, in run [2022/03/10 22:52:17.549] setup() [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/test/__init__.py", line 1020, in setup [2022/03/10 22:52:17.549] client_context.init() [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/test/__init__.py", line 453, in init [2022/03/10 22:52:17.549] self._init_client() [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/test/__init__.py", line 367, in _init_client [2022/03/10 22:52:17.549] **self.default_client_options [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/test/__init__.py", line 307, in _connect [2022/03/10 22:52:17.549] return pymongo.MongoClient(host, port, **kwargs) [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/pymongo/mongo_client.py", line 785, in __init__ [2022/03/10 22:52:17.549] srv_max_hosts=srv_max_hosts, [2022/03/10 22:52:17.549] File "/data/mci/508eee3f4e81d8b28e7642006fe1039f/src/pymongo/settings.py", line 77, in __init__ [2022/03/10 22:52:17.549] self._stack = "".join(traceback.format_stack()) [2022/03/10 22:52:18.536] Finished 'shell.exec' in "run tests" in 4m41.901345409s
The issue is that the main client is closed directly before calling print_unclosed_clients() and due to the behavior described in PYTHON-1634 the threads often have yet to shutdown.
Until PYTHON-1634 or PYTHON-1896 is implemented we should avoid checking the main test client.
- related to
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PYTHON-1896 MongoClient hangs for 0.5 seconds on script exit
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- Closed
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PYTHON-1634 Provide a way to join background threads when closing a MongoClient
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- Backlog
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