Error
Error Code:
1428
MariaDB Error 1428: Invalid System Table Locking
Description
Error 1428 indicates an attempt to acquire a write lock on a system table (e.g., `mysql.user`, `information_schema` tables) in combination with locking other non-system tables or using different lock types within the same `LOCK TABLES` statement. MariaDB prevents this to maintain system integrity, avoid data corruption, and prevent deadlocks.
Error Message
You can't combine write-locking of system tables with other tables or lock types
Known Causes
3 known causesMixed Table Locking
Occurs when a single `LOCK TABLES` statement attempts to acquire a WRITE lock on a system table alongside locks on non-system user tables.
Conflicting Lock Types
Arises when a session tries to apply a WRITE lock on a system table and simultaneously requests different lock types (e.g., READ lock) for other tables.
Overlapping Administrative Locks
Triggered by administrative scripts or queries that unintentionally include system tables in a general `LOCK TABLES` operation that also targets user-defined tables.
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