PECOBLR-86 Improve logging for debug level

Author: saishreeeee

src/databricks/sql/client.py

@@ -214,6 +214,8 @@ def read(self) -> Optional[OAuthToken]:
         # use_cloud_fetch
         # Enable use of cloud fetch to extract large query results in parallel via cloud storage
 
+        logger.debug(f"Connection.__init__(server_hostname={server_hostname}, http_path={http_path})")
+
         if access_token:
             access_token_kv = {"access_token": access_token}
             kwargs = {**kwargs, **access_token_kv}
@@ -787,6 +789,7 @@ def execute(
 
         :returns self
         """
+        logger.debug(f"Cursor.execute(operation={operation}, parameters={parameters})")
 
         param_approach = self._determine_parameter_approach(parameters)
         if param_approach == ParameterApproach.NONE:

src/databricks/sql/thrift_backend.py

@@ -131,6 +131,8 @@ def __init__(
         # max_download_threads
         #  Number of threads for handling cloud fetch downloads. Defaults to 10
 
+        logger.debug(f"ThriftBackend.__init__(server_hostname={server_hostname}, port={port}, http_path={http_path})")
+
         port = port or 443
         if kwargs.get("_connection_uri"):
             uri = kwargs.get("_connection_uri")
@@ -390,6 +392,8 @@ def attempt_request(attempt):
 
                 # TODO: don't use exception handling for GOS polling...
 
+                logger.debug(f"ThriftBackend.attempt_request: HTTPError: {err}")
+
                 gos_name = TCLIServiceClient.GetOperationStatus.__name__
                 if method.__name__ == gos_name:
                     delay_default = (
@@ -404,6 +408,7 @@ def attempt_request(attempt):
                 else:
                     raise err
             except OSError as err:
+                logger.debug(f"ThriftBackend.attempt_request: OSError: {err}")
                 error = err
                 error_message = str(err)
                 # fmt: off
@@ -434,6 +439,7 @@ def attempt_request(attempt):
                     else:
                         logger.warning(log_string)
             except Exception as err:
+                logger.debug(f"ThriftBackend.attempt_request: Exception: {err}")
                 error = err
                 retry_delay = extract_retry_delay(attempt)
                 error_message = ThriftBackend._extract_error_message_from_headers(
@@ -1074,6 +1080,7 @@ def fetch_results(
         return queue, resp.hasMoreRows
 
     def close_command(self, op_handle):
+        logger.debug(f"ThriftBackend.close_command(op_handle={op_handle})")
         req = ttypes.TCloseOperationReq(operationHandle=op_handle)
         resp = self.make_request(self._client.CloseOperation, req)
         return resp.status