Paweł Biernat
09/17/2024, 11:33 AMAn error occurred while monitoring flow run '2436cb5e-e93d-415f-be74-979e2c072827'. The flow run will not be marked as failed, but an issue may have occurred.
Traceback (most recent call last):
File "/usr/local/lib/python3.12/site-packages/prefect/workers/base.py", line 908, in _submit_run_and_capture_errors
result = await self.run(
...
File "/usr/local/lib/python3.12/site-packages/urllib3/response.py", line 1119, in _update_chunk_length
raise ProtocolError("Response ended prematurely") from None
urllib3.exceptions.ProtocolError: Response ended prematurely
Marvin
09/17/2024, 11:35 AMProtocolError: Response ended prematurely
, appears to be related to a known issue when monitoring flow runs. This might be happening due to issues in the network request handling or server response.
### Possible Solutions:
1. Network Stability: Ensure there is a stable network connection. Intermittent network issues can sometimes cause premature responses.
2. Retry Logic: Implement a retry mechanism in your deployment to handle transient network issues.
3. Library Versions: Make sure you are using the latest version of Prefect and related dependencies, as updates often contain important bug fixes and stability improvements.
### Additional Resources:
- I found a GitHub issue related to Prefect workers failing to monitor flow runs and setting them to crashed under certain conditions. Though the cause seems specific to Kubernetes workers, similar underlying issues might be at play.
- GitHub Issue
- Here are some relevant documents from Prefect's documentation that might guide you with more context and help you troubleshoot further:
- Prefect 2.x Troubleshooting Guide
- Prefect 3.x Troubleshooting Cloud
- Prefect 2.x Deployment Documentation
Would you like guidance on how to implement a retry mechanism or further troubleshooting steps?