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

从 dbextractor.py 第 23 行的连接调用和 extract.py 第 24 行中失败的 main 路径开始，然后检查 traceback 中显示的 connector 的 open_session 和 RequestError 处理。使用相同的 server_hostname、http_path 和 access_token 输入重现连接尝试；完成的标准是确定服务器响应的原因，并记录或修复由此产生的 RequestError 行为。

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