For this how-to we were working with a MariaDB 10.6.5 database server and the newest MariaDB MaxScale 6.3.0 (aka 2.6) load balancer/proxy.
As a starting point we had a working MariaDB Master/Master replication with one active Master (Ma) and one passive Master (Mp). Whereas the passive Master was set to read_only
. As a replication user we used the user replication
.