Error
Error Code:
4102
MySQL Error 4102: SET PASSWORD ineffective with external auth
Description
This error indicates that you are attempting to use the `SET PASSWORD` statement for a MySQL user whose authentication method relies on an external system, not the MySQL server's internal password storage. MySQL cannot change credentials for users managed by plugins like `auth_socket`, PAM, or LDAP, as these methods do not store authentication data within MySQL itself.
Error Message
SET PASSWORD has no significance for user '%s'@'%s' as the authentication method used doesn't store authentication data in the MySQL server. Please consider using ALTER USER instead if you want to change authentication parameters.
Known Causes
3 known causesUser Authenticated via `auth_socket`
The user is configured to authenticate using the `auth_socket` plugin, meaning their authentication is managed by the operating system's Unix socket credentials.
External Authentication Plugin in Use
The user's authentication is handled by an external plugin such as PAM, LDAP, or Kerberos, which manages credentials outside of MySQL's internal tables.
Attempting `SET PASSWORD` on External Method
The `SET PASSWORD` statement is being used on a user account explicitly defined with an authentication method that does not store password hashes within MySQL.
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