stop slave; drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9; reset master; reset slave; drop table if exists t1,t2,t3,t4,t5,t6,t7,t8,t9; start slave; show variables like 'init_slave'; Variable_name Value init_slave set global max_connections=500 show variables like 'max_connections'; Variable_name Value max_connections 500 reset master; show variables like 'init_slave'; Variable_name Value init_slave show variables like 'max_connections'; Variable_name Value max_connections 100 set global init_connect="set @c=1"; show variables like 'init_connect'; Variable_name Value init_connect set @c=1 stop slave;