Error
Error Code:
3975
MySQL Error 3975: Invalid Recovery Endpoint
Description
This error indicates that MySQL attempted to use a specified network endpoint (IP address and port) for a recovery operation, but the server is not configured to listen for connections on that particular endpoint. This typically occurs in replication or group replication setups when a recovery attempt specifies an unreachable or incorrectly configured listener.
Error Message
The server is not listening on endpoint '%s'. Only endpoints that the server is listening on are valid recovery endpoints.
Known Causes
4 known causesMismatched Listener Configuration
The specified recovery endpoint does not match any IP address or port that the MySQL server is configured to listen on in its `my.cnf` or `my.ini`.
Firewall Blocking Port
A firewall (OS-level or network-level) is preventing the MySQL server from listening on or accepting connections on the specified port.
Incorrect `bind-address` Setting
The `bind-address` parameter in the MySQL configuration is set to a specific IP address that does not include the network interface associated with the desired recovery endpoint.
Server Not Fully Listening
The MySQL server or its associated components have not fully initialized or started listening on the expected network interfaces for various reasons.
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