Error
Error Code:
1873
MySQL Error 1873: Access Denied User Change
Description
MySQL Error 1873 indicates a failure when a user attempts to change their current identity to another user account within the same session. This typically occurs when the current user lacks the necessary permissions to assume the identity of the target user, or if the target user's credentials (username, host, or password) are incorrect or do not exist. The server disconnects the session upon this access denial.
Error Message
Access denied trying to change to user '%s'@'%s' (using password: %s). Disconnecting.
Known Causes
4 known causesInsufficient Privileges
The current MySQL user lacks the necessary `SET USER` or `SUPER` privileges required to switch to the specified target user account.
Target User Not Found
The target user (`%s`@`%s`) to which the system is attempting to switch does not exist in the MySQL grant tables, or the hostname component does not match.
Incorrect Target Password
The password provided for the target user account, which the system is trying to switch to, is incorrect or has expired.
Configuration Restrictions
MySQL server configuration settings, such as `skip_grant_tables` or specific authentication plugin restrictions, prevent user switching.
Solutions
Coming SoonGeneral 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