Error
Error Code:
1871
MySQL Error 1871: Replica Metadata Setup Issue
Description
This error occurs on a MySQL replica (slave) server when it attempts to start replication but cannot properly initialize its internal connection metadata structure. This structure is crucial for the replica to track its replication state and connect to the source. The failure often indicates underlying issues with the replica's configuration, internal system tables, or file system access.
Error Message
Replica failed to initialize connection metadata structure from the repository
Known Causes
3 known causesCorrupted Replica Repository
The internal MySQL system tables on the replica, which store replication metadata (e.g., mysql.slave_relay_log_info), may be corrupted or contain invalid data.
Insufficient File Permissions
The MySQL server process lacks the necessary read/write permissions for its data directory, log files, or critical configuration files (like auto.cnf).
Misconfigured Replica Settings
Essential replication parameters or paths defined in the replica's configuration file (my.cnf) are incorrect or point to non-existent resources.
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