Why Is Error "No such user. userName:xxxx." Reported on the Flink Job Management Page When I Grant Permission to a User?

Symptom

Choose Job Management > Flink Jobs. In the Operation column of the target job, choose More > Permissions. When a new user is authorized, No such user. userName:xxxx. is displayed.

Solution

The issue is caused by the system's failure to identify new user information.

Perform the following steps:

1. Check whether the username exists.
2. If the username exists, relog in to the management console to grant permissions.