Error
Error Code:
4044
MySQL Error 4044: Missing User Realm Authentication
Description
This error occurs when attempting to create or modify a MySQL user, and the configured authentication plugin (e.g., Kerberos, implied by `ER_KERBEROS_CREATE_USER`) expects a user realm to be part of the authentication string, but it is provided as empty or is entirely missing. It indicates that the user definition does not meet the requirements of the active authentication method.
Error Message
Create/Alter user has failed, Configured user realm as authentication string is empty, Please make sure to configure authentication string as user realm.
Known Causes
3 known causesAuthentication Plugin Requirement
An active authentication plugin, such as Kerberos, is configured to require a user realm specification within the user's authentication string.
Incorrect User Definition Syntax
The `CREATE USER` or `ALTER USER` statement was executed without correctly including the necessary user realm as part of the authentication string.
Plugin Configuration Mismatch
The server's authentication plugin configuration mandates a user realm, but the user creation/alteration command failed to supply it, leading to a mismatch.
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