Error
Error Code:
1189
MariaDB Error 1189: Replication Network Issue
Description
This error indicates a network problem preventing a MariaDB replica server from successfully reading binary log events from its master server. It typically occurs during replication when the replica loses its connection or cannot establish one with the master, interrupting data synchronization.
Error Message
Net error reading from master
Known Causes
4 known causesNetwork Connectivity Issues
Firewall rules, network cable disconnections, router problems, or other network infrastructure failures can block communication between the master and replica.
Master Server Offline/Unresponsive
The master MariaDB server may be shut down, crashed, overloaded, or its network interface might be down, making it unreachable for the replica.
Misconfigured Network Settings
Incorrect IP addresses, port numbers, or hostname resolutions in the replica's `CHANGE MASTER TO` statement or network settings can prevent a connection.
Master MariaDB Service Stopped
The MariaDB server process on the master might not be running or may have crashed, rendering it unable to serve replication requests.
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