[2021/08/27 01:08:26.656] Traceback (most recent call last):
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1458, in _retry_internal
 [2021/08/27 01:08:26.656]     server = self._select_server(writable_server_selector, session)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1346, in _select_server
 [2021/08/27 01:08:26.656]     server = topology.select_server(server_selector)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/topology.py", line 244, in select_server
 [2021/08/27 01:08:26.656]     return random.choice(self.select_servers(selector,
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/topology.py", line 202, in select_servers
 [2021/08/27 01:08:26.656]     server_descriptions = self._select_servers_loop(
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/topology.py", line 218, in _select_servers_loop
 [2021/08/27 01:08:26.656]     raise ServerSelectionTimeoutError(
 [2021/08/27 01:08:26.656] pymongo.errors.ServerSelectionTimeoutError: localhost:27017: [Errno 111] Connection refused, Timeout: 30s, Topology Description: <TopologyDescription id: 612838eec6cc03a2fac91640, topology_type: Single, servers: [<ServerDescription ('localhost', 27017) server_type: Unknown, rtt: None, error=AutoReconnect('localhost:27017: [Errno 111] Connection refused')>]>
 [2021/08/27 01:08:26.656] During handling of the above exception, another exception occurred:
 [2021/08/27 01:08:26.656] Traceback (most recent call last):
 [2021/08/27 01:08:26.656]   File "/opt/mongodbtoolchain/revisions/0d5a071f1db663c050a1d7f330c13f46e62d6d4f/stow/python3-v3.KL4/lib/python3.9/multiprocessing/pool.py", line 125, in worker
 [2021/08/27 01:08:26.656]     result = (True, func(*args, **kwds))
 [2021/08/27 01:08:26.656]   File "/opt/mongodbtoolchain/revisions/0d5a071f1db663c050a1d7f330c13f46e62d6d4f/stow/python3-v3.KL4/lib/python3.9/multiprocessing/pool.py", line 48, in mapstar
 [2021/08/27 01:08:26.656]     return list(map(*args))
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/many-collection/../many-collection-test.py", line 624, in populate_collections_worker
 [2021/08/27 01:08:26.656]     bulk.execute()
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/bulk.py", line 709, in execute
 [2021/08/27 01:08:26.656]     return self.__bulk.execute(write_concern, session=None)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/bulk.py", line 529, in execute
 [2021/08/27 01:08:26.656]     return self.execute_command(generator, write_concern, session)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/bulk.py", line 360, in execute_command
 [2021/08/27 01:08:26.656]     client._retry_with_session(
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1438, in _retry_with_session
 [2021/08/27 01:08:26.656]     return self._retry_internal(retryable, func, session, bulk)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1476, in _retry_internal
 [2021/08/27 01:08:26.656]     raise last_error
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/mongo_client.py", line 1470, in _retry_internal
 [2021/08/27 01:08:26.656]     return func(session, sock_info, retryable)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/bulk.py", line 354, in retryable_bulk
 [2021/08/27 01:08:26.656]     self._execute_command(
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/bulk.py", line 310, in _execute_command
 [2021/08/27 01:08:26.656]     result, to_send = bwc.execute(ops, client)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/message.py", line 950, in execute
 [2021/08/27 01:08:26.656]     result = self.write_command(request_id, msg, to_send)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/message.py", line 1042, in write_command
 [2021/08/27 01:08:26.656]     reply = self.sock_info.write_command(request_id, msg)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/pool.py", line 794, in write_command
 [2021/08/27 01:08:26.656]     reply = self.receive_message(request_id)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/pool.py", line 753, in receive_message
 [2021/08/27 01:08:26.656]     self._raise_connection_failure(error)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/pool.py", line 751, in receive_message
 [2021/08/27 01:08:26.656]     return receive_message(self, request_id, self.max_message_size)
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/network.py", line 196, in receive_message
 [2021/08/27 01:08:26.656]     _receive_data_on_socket(sock_info, 16, deadline))
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/venv/lib/python3.9/site-packages/pymongo/network.py", line 293, in _receive_data_on_socket
 [2021/08/27 01:08:26.656]     raise AutoReconnect("connection closed")
 [2021/08/27 01:08:26.656] pymongo.errors.AutoReconnect: connection closed
 [2021/08/27 01:08:26.656] """
 [2021/08/27 01:08:26.656] The above exception was the direct cause of the following exception:
 [2021/08/27 01:08:26.656] Traceback (most recent call last):
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/many-collection/../many-collection-test.py", line 798, in <module>
 [2021/08/27 01:08:26.656]     populate_collections(num_collections, docs_per, multiprocessing.cpu_count())
 [2021/08/27 01:08:26.656]   File "/data/mci/a4dd170b398cba0dc39c1fa65c45f7a5/mongo-tests/largescale/many-collection/../many-collection-test.py", line 649, in populate_collections
 [2021/08/27 01:08:26.656]     p.map(populate_collections_worker, pop_workers)
 [2021/08/27 01:08:26.656]   File "/opt/mongodbtoolchain/revisions/0d5a071f1db663c050a1d7f330c13f46e62d6d4f/stow/python3-v3.KL4/lib/python3.9/multiprocessing/pool.py", line 364, in map
 [2021/08/27 01:08:26.656]     return self._map_async(func, iterable, mapstar, chunksize).get()
 [2021/08/27 01:08:26.656]   File "/opt/mongodbtoolchain/revisions/0d5a071f1db663c050a1d7f330c13f46e62d6d4f/stow/python3-v3.KL4/lib/python3.9/multiprocessing/pool.py", line 771, in get
 [2021/08/27 01:08:27.140]     raise self._value
 [2021/08/27 01:08:27.140] pymongo.errors.AutoReconnect: connection closed
 [2021/08/27 01:08:27.140] Command failed: command encountered problem: error waiting on process '50e9286c-ab42-4727-ab5f-62e97f15d19f': exit status 1