!include ../my.cnf [mysqld.1] log-slave-updates loose-innodb gtid_domain_id=1 [mysqld.2] log-slave-updates loose-innodb gtid_domain_id=2 [mysqld.3] log-slave-updates loose-innodb gtid_domain_id=3 [ENV] SERVER_MYPORT_3= @mysqld.3.port SERVER_MYSOCK_3= @mysqld.3.socket