Hello,
The way to replicate only a certain database is to add replication filtering rules to my.cnf. By default, there is no replication filtering rules in my.cnf on gateway, that means the replication is for the whole mysql server, not just a single database.
But the create_slave.sh script is hard coded to clone ssg database only, so before start replication, you may have to manually copy the OTK database.
Regards,
Mark