Warning
Error Code:
254
MongoDB Error 254: Free Mon HTTP Failure
Description
Error 254, 'Free Mon Http Temporary Failure,' indicates that MongoDB's free monitoring service encountered a temporary issue while attempting to send diagnostic data. This typically occurs when the `mongod` process fails to establish or maintain an HTTP connection to the monitoring endpoint, often due to network, proxy, or service-side problems.
Error Message
Free Mon Http Temporary Failure
Known Causes
4 known causesNetwork Connectivity Issues
The `mongod` process cannot reach the MongoDB monitoring endpoint due to firewall restrictions, network outages, or incorrect routing.
Proxy Configuration Problems
If MongoDB is behind a proxy server, incorrect or missing proxy settings prevent the monitoring data from being sent out successfully.
Monitoring Service Unavailability
The MongoDB monitoring service itself might be temporarily unavailable or experiencing issues on the server-side.
DNS Resolution Failure
The system is unable to resolve the hostname of the MongoDB monitoring endpoint, preventing a connection from being established.
Solutions
Coming SoonDetailed step-by-step solutions for this error are being prepared. In the meantime, try these general troubleshooting tips:
General Troubleshooting Tips
- Check the error message carefully for specific details
- Review recent changes that might have caused the error
- Search for the exact error code in the official documentation
- Check log files for additional context
- Try restarting the application or service