change master '' to master_port=MYPORT_1, master_host='127.0.0.1', master_user='root'; change master 'master2' to master_port=MYPORT_2, master_host='127.0.0.1', master_user='root'; start all slaves; Warnings: Note 1937 SLAVE 'master2' started Note 1937 SLAVE '' started set default_master_connection = ''; include/wait_for_slave_to_start.inc set default_master_connection = 'master2'; include/wait_for_slave_to_start.inc set default_master_connection = ''; create table t1 (a varchar(10) character set utf8); load data infile '../../std_data/loaddata6.dat' into table t1; create table t2 (a varchar(10) character set utf8); load data infile '../../std_data/loaddata6.dat' into table t2; select count(*) from t1; count(*) 1 select count(*) from t2; count(*) 1 drop table t1; drop table t2; stop all slaves; Warnings: Note 1938 SLAVE 'master2' stopped Note 1938 SLAVE '' stopped include/reset_master_slave.inc include/reset_master_slave.inc include/reset_master_slave.inc