Added functionality for export of failure logs

[saishreeeee]

What type of PR is this?

• Refactor
• Feature
• Bug Fix
• Other

Description

Added error logging to the init function of Error class
Added export_failure_log to TelemetryClient

How is this tested?

• Unit tests

• E2E Tests

• Manually
  Queried from a non-existent table
  Request Body Summary:
  uploadTime: 1749620674701
  items: 0 items
  protoLogs: 2 logs

      Proto Log #1: Initial connection log
      Proto Log #2: Error log
      {
        "frontend_log_event_id": "b251bea7-c9a8-42e4-b00c-5ea4011d7d17",
        "context": {
          "client_context": {
            "timestamp_millis": 1749716213881,
            "user_agent": "PyDatabricksSqlConnector/4.0.3"
          }
        },
        "entry": {
          "sql_driver_log": {
            "session_id": "<REDACTED>",
            "system_configuration": {
              "driver_version": "4.0.3",
              "os_name": "Darwin",
              "os_version": "24.5.0",
              "os_arch": "arm64",
              "runtime_name": "Python 3.13.3",
              "runtime_version": "3.13.3",
              "runtime_vendor": "CPython",
              "driver_name": "Databricks SQL Python Connector",
              "char_set_encoding": "utf-8",
              "locale_name": "en_US"
            },
            "driver_connection_params": {
              "http_path": "<REDACTED>",
              "mode": "THRIFT",
              "host_info": {
                "host_url": "<REDACTED>",
                "port": 443
              },
              "auth_mech": "PAT"
            },
            "error_info": {
              "error_name": "ServerOperationError",
              "stack_trace": "[TABLE_OR_VIEW_NOT_FOUND] The table or view `non_existent_table` cannot be found. Verify the spelling and correctness of the schema and catalog.\nIf you did not qualify the name with a schema, verify the current_schema() output, or qualify the name with the correct schema and catalog.\nTo tolerate the error on drop use DROP VIEW IF EXISTS or DROP TABLE IF EXISTS. SQLSTATE: 42P01; line 2 pos 33"
            }
          }
        }
      }          
      === Response Details ===
      Status Code: 200
      Response Body:
      {
        "errors": [],
        "numSuccess": 0,
        "numProtoSuccess": 2,
        "numRealtimeSuccess": 0
      }
  

• N/A

The coverage of telemetry_client.py by test_telemetry.py's unit tests are as below.

Module	Statements	Miss	Cover	Missing
telemetry_client.py	186	15	92%	107, 111, 115, 331-339, 364-367, 380-382

Related Tickets & Documents

PECOBLR-524

[samikshya-db]

Let's elaborate on testing details, maybe include a redacted log JSON ?

[samikshya-db]

From your JSON, can we skip null fields while building the telemetry request?

[github-actions]

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

[github-actions]

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

[github-actions]

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

[github-actions]

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

[github-actions]

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

[github-actions]

Thanks for your contribution! To satisfy the DCO policy in our contributing guide every commit message must include a sign-off message. One or more of your commits is missing this message. You can reword previous commit messages with an interactive rebase (git rebase -i main).

[samikshya-db]

LGTM. thanks for getting this through 🎉