Error
Error Code:
3501
MySQL Error 3501: ACL Operation Failed
Description
Error 3501 indicates that MySQL encountered a critical failure while attempting to perform an Access Control List (ACL) operation. This often occurs when the server tries to manage user permissions, verify access rights, or modify user accounts, but an underlying issue with its security engine or system resources prevents the operation from succeeding.
Error Message
The ACL operation failed due to the following error from SE: errcode %d - %s
Known Causes
3 known causesInsufficient File System Permissions
The MySQL server process lacks the necessary operating system permissions to read, write, or modify its internal access control files or directories.
Corrupted Internal ACL Tables
Key system tables within MySQL (e.g., `mysql.user`, `mysql.db`) that store user privileges and access control lists have become corrupted.
Underlying Server Engine Error
The MySQL server's internal security or processing engine encountered a critical error, often due to resource constraints or configuration issues, preventing the ACL operation.
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