[2021/07/28 16:51:37.817] ERROR [1.043s]: test_discovery_and_monitoring_integration_minPoolSize_error_Network_error_on_minPoolSize_background_creation (test_discovery_and_monitoring.TestIntegration)
 [2021/07/28 16:51:37.817] ----------------------------------------------------------------------
 [2021/07/28 16:51:37.817] Traceback (most recent call last):
 [2021/07/28 16:51:37.817]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/test/__init__.py", line 537, in wrap
 [2021/07/28 16:51:37.817]     return f(*args, **kwargs)
 [2021/07/28 16:51:37.817]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/test/__init__.py", line 537, in wrap
 [2021/07/28 16:51:37.817]     return f(*args, **kwargs)
 [2021/07/28 16:51:37.817]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/test/test_discovery_and_monitoring.py", line 444, in run_scenario
 [2021/07/28 16:51:37.817]     self.run_scenario(scenario_def, test)
 [2021/07/28 16:51:37.817]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/test/utils_spec_runner.py", line 544, in run_scenario
 [2021/07/28 16:51:37.817]     s = client.start_session(**dict(opts))
 [2021/07/28 16:51:37.817]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/pymongo/mongo_client.py", line 1694, in start_session
 [2021/07/28 16:51:37.817]     snapshot=snapshot)
 [2021/07/28 16:51:37.818]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/pymongo/mongo_client.py", line 1662, in __start_session
 [2021/07/28 16:51:37.818]     server_session = self._get_server_session()
 [2021/07/28 16:51:37.818]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/pymongo/mongo_client.py", line 1698, in _get_server_session
 [2021/07/28 16:51:37.818]     return self._topology.get_server_session()
 [2021/07/28 16:51:37.818]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/pymongo/topology.py", line 523, in get_server_session
 [2021/07/28 16:51:37.818]     session_timeout = self._check_session_support()
 [2021/07/28 16:51:37.818]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/pymongo/topology.py", line 505, in _check_session_support
 [2021/07/28 16:51:37.818]     None)
 [2021/07/28 16:51:37.818]   File "/data/mci/4897cf1dca6ba714ef02139c35d667f5/src/pymongo/topology.py", line 216, in _select_servers_loop
 [2021/07/28 16:51:37.818]     (self._error_message(selector), timeout, self.description))
 [2021/07/28 16:51:37.818] pymongo.errors.ServerSelectionTimeoutError: localhost:27017: connection closed, Timeout: 1.0s, Topology Description: <TopologyDescription id: 61018a3c7a5da5c21de91dbe, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('localhost:27017: connection closed')>]>