Error
Error Code:
1804
MariaDB Error 1804: MTS Worker Table Reset Failure
Description
Error 1804 indicates that MariaDB encountered a problem when attempting to clean up internal worker information tables, particularly those used in Multi-Threaded Slave (MTS) replication. This usually happens during a slave restart, shutdown, or when replication is being reset, preventing the server from properly managing its replication state.
Error Message
Cannot clean up worker info tables. Additional error messages can be found in the MariaDB error log
Known Causes
4 known causesFile System Permissions
Insufficient file system permissions for the MariaDB user to read, write, or delete files in the data directory where replication worker metadata is stored.
Corrupted Replication Metadata
The internal files or tables storing information about replication workers have become corrupted, preventing MariaDB from cleaning them up properly.
Disk Space or I/O Issues
Lack of available disk space or underlying disk I/O problems can prevent MariaDB from performing necessary file operations to clean up worker tables.
Abrupt Server Shutdown
An unexpected or abrupt shutdown of the MariaDB server can leave replication worker metadata in an inconsistent state, hindering subsequent cleanup attempts.
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