databricks.sql.exc.RequestError: Error during request to server

Start with the connection call in dbextractor.py line 23 and the failing main path in extract.py line 24, then inspect the connector's open_session and request-error handling shown in the traceback. Reproduce the connection attempt with the same server_hostname, http_path, and access_token inputs; done requires identifying the server-response cause and documenting or fixing the resulting RequestError behavior.

main(server_hostname = args.server_hostname, http_path = args.http_path, schema = args.schema, access_token = args.access_token)
File "extract.py", line 24, in main
dbx_extractor.execute_sql(sql_query, server_hostname, http_path, access_token)
File "/mnt/azureml/cr/j/2c91464c9e0743f5860e8f48b407683d/exe/wd/dbextractor.py", line 23, in execute_sql
with db_sql.connect(
File "/azureml-envs/azureml_9806bfc7c716eaf0df12bea8512e961b/lib/python3.8/site-packages/databricks/sql/init.py", line 50, in connect
return Connection(server_hostname, http_path, access_token, **kwargs)
File "/azureml-envs/azureml_9806bfc7c716eaf0df12bea8512e961b/lib/python3.8/site-packages/databricks/sql/client.py", line 189, in init
self._session_handle = self.thrift_backend.open_session(
File "/azureml-envs/azureml_9806bfc7c716eaf0df12bea8512e961b/lib/python3.8/site-packages/databricks/sql/thrift_backend.py", line 464, in open_session
response = self.make_request(self._client.OpenSession, open_session_req)
File "/azureml-envs/azureml_9806bfc7c716eaf0df12bea8512e961b/lib/python3.8/site-packages/databricks/sql/thrift_backend.py", line 393, in make_request
self._handle_request_error(error_info, attempt, elapsed)
File "/azureml-envs/azureml_9806bfc7c716eaf0df12bea8512e961b/lib/python3.8/site-packages/databricks/sql/thrift_backend.py", line 261, in _handle_request_error
raise network_request_error
databricks.sql.exc.RequestError: Error during request to server