Error
Error Code:
3914
MySQL Error 3914: Insufficient Role Privilege
Description
This error indicates that a MySQL user or account attempted to perform an operation that requires a specific role, but the necessary role was not assigned to them. It typically occurs when administrative, auditing, or other restricted functions are enabled and demand particular roles for execution.
Error Message
Request ignored for '%s'@'%s'. Role needed to perform operation: '%s'
Known Causes
3 known causesMissing Role Assignment
The user or account attempting the operation has not been granted the specific role required to perform that action.
Inactive Role in Session
Even if granted, a required role might not be active in the current session, especially if `activate_all_roles_on_login` is disabled or `SET ROLE` was not used.
Incorrect User Context
The operation is being attempted by a user account that is not intended or configured to possess the necessary administrative or auditing roles.
Solutions
3 solutions available1. Grant the Required Role to the User easy
Directly assign the missing role to the user causing the error.
1
Connect to your MySQL server as a user with sufficient privileges (e.g., a root user or a user with `GRANT OPTION`).
2
Execute the `GRANT` statement to assign the role identified in the error message to the user. Replace placeholders with actual values.
GRANT 'role_name' TO 'user'@'host';3
Flush privileges to ensure the changes take effect immediately.
FLUSH PRIVILEGES;2. Verify User's Current Roles and Grant Statements medium
Inspect the user's current role assignments and the grants that define them.
1
Connect to your MySQL server as a privileged user.
2
Query the `mysql.roles_mapping` table to see which roles are currently assigned to the user. Replace placeholders.
SELECT * FROM mysql.roles_mapping WHERE `user` = 'user' AND `host` = 'host';3
Query the `mysql.user` table to see the `default_role` for the user, if any. Replace placeholders.
SELECT user, host, default_role FROM mysql.user WHERE user = 'user' AND host = 'host';4
If the user is missing the required role, use the `GRANT` statement from Solution 1 to assign it.
GRANT 'role_name' TO 'user'@'host';5
Flush privileges after making any changes.
FLUSH PRIVILEGES;3. Revoke and Re-grant Role with Correct Permissions medium
If the role is assigned but lacks necessary underlying permissions, revoke and re-grant the role or its constituent privileges.
1
Identify the specific operation that failed and the role required (from the error message).
2
Connect to your MySQL server as a privileged user.
3
Revoke the role from the user. Replace placeholders.
REVOKE 'role_name' FROM 'user'@'host';4
Grant the role again, ensuring that the role itself has the necessary underlying privileges for the operation. This might involve granting specific privileges directly to the role if it was created without them, or if the role's definition is incorrect.
GRANT 'role_name' TO 'user'@'host';5
Alternatively, if the role definition is the issue, you might need to grant specific privileges directly to the user or modify the role itself (if you have `CREATE ROLE` and `GRANT ROLE` privileges). For example, to grant a specific privilege to the role:
`GRANT SELECT ON database_name.table_name TO 'role_name';`
Then, re-grant the role to the user.
`GRANT SELECT ON database_name.table_name TO 'role_name';`
Then, re-grant the role to the user.
GRANT 'role_name' TO 'user'@'host';6
Flush privileges.
FLUSH PRIVILEGES;