User KERB_A can connect using gssapi to a backend server SRV1.
When trying to connect KERB_A (kerberos user) via MaxScale to a backend server SRV1, this error happens:
Starting MaxScale process with user KERB_A and then connecting to SRV1 via MaxScale with the same user KERB_A, authentication succeeds.
When trying to use another kerberos user KERB_B to connect to SRV1 via MaxScale this error happens:
Documentation has been followed but it's not clear what's wrong.
How does GSSAPI work?
Does MaxScale process user need to be a kerberos user?
If so, why when connecting with another user I get the above error of user mismatch?