A.修改配置文件增加配置:relay-bin=mysql-relay B.修改配置文件增加配置:log-bin=mysql-bin C.修改配置文件增加配置:server-id=1 D.修改配置文件增加配置:slow_query_log=1
A.keepalived B.Apache C.Nginx D.zabbix
A.insert into student(sal) values(8000); B.select sun(age)from students; C.delete from student where id=3; D.select max(age) from students;