Error
Error Code:
1027
MySQL Error 1027: Resource Locked Against Change
Description
MySQL Error 1027 indicates that a specific database object, table, or underlying file cannot be modified because it is currently locked. This prevents operations like `ALTER TABLE`, `DROP TABLE`, or file system changes on database files.
Error Message
'%s' is locked against change
Known Causes
3 known causesExplicit User or Application Lock
Another user, session, or application has explicitly acquired an exclusive lock on the database object or file you are trying to modify.
Active Transaction or DDL Operation
A long-running transaction, DDL (Data Definition Language) operation, or a backup process is currently holding a lock on the resource.
Operating System File Lock
The underlying operating system or an external process (e.g., antivirus, file system backup) has locked a MySQL data file, preventing MySQL from modifying it.
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