Error
Error Code:
1218
MariaDB Error 1218: Master Connection Failure
Description
This error indicates that a MariaDB replica (formerly known as slave) failed to establish a connection with its designated source (formerly known as master) server. It typically occurs during replication setup or when an existing replication channel loses its connection to the source.
Error Message
Error connecting to master: %s
Known Causes
4 known causesNetwork Connectivity Issues
The replica server cannot reach the master due to network disruptions, DNS resolution failures, or incorrect routing.
Incorrect Master Configuration
The replica's `CHANGE MASTER TO` statement contains incorrect `MASTER_HOST`, `MASTER_PORT`, `MASTER_USER`, or `MASTER_PASSWORD` values.
Master Server Unavailable
The MariaDB master server is not running, is overloaded, or is otherwise inaccessible to new connections.
Firewall Blocking Connection
A firewall on either the master or replica server, or an intermediary network device, is preventing the connection on the specified port.
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