Error
Error Code:
1428
MySQL Error 1428: System Table Lock Conflict
Description
MySQL Error 1428 occurs when an operation attempts to acquire a write lock on a system table (e.g., `mysql.user` or `mysql.db`) simultaneously with locking other non-system tables, or by using conflicting lock types. This restriction is in place to protect the integrity and consistency of MySQL's core metadata, preventing potential deadlocks or corruption.
Error Message
You can't combine write-locking of system tables with other tables or lock types
Known Causes
3 known causesCombined Table Locking Statement
An explicit `LOCK TABLES` statement is attempting to acquire a write lock on a MySQL system table and one or more user-defined tables within the same operation.
Conflicting Application Logic
Application code or a complex script attempts to perform a sequence of locking operations that MySQL interprets as an disallowed combination of system table write locks and other table or lock types.
Administrative Script Error
A custom administrative script or tool is inadvertently designed to perform operations that combine write-locking of system tables with other tables or incompatible lock types.
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