拓扑结构为:A (master)-B(A的slave,同时作为C的master)-C(B的slave)
A:3308
[mysqld]
server-id=111
GRANT REPLICATION SLAVE ON *.* TO 'backup'@'localhost' IDENTIFIED BY ''; //backup user
GRANT ALL ON *.* TO 'proxy1'@'localhost' IDENTIFIED BY '112233'; //数据库操作
show master status; // 查看master状态,为slave提供数据
B:3309
[mysqld]
server-id=222
log_slave_updates=1 #当有数据更新时会写binarylog,从而写入到C
GRANT REPLICATION SLAVE ON *.* TO 'backup'@'localhost' IDENTIFIED BY ''; //backup user
GRANT ALL ON *.* TO 'proxy1'@'localhost' IDENTIFIED BY '112233'; //数据库操作
change master to
master_host='localhost',
master_port=3308,
master_user='backup',
master_password='',
master_log_file='--', // 3308 master status
master_log_pos=--; // 3308 master status
start slave; // 执行同步进程
show slave status\G //主从同步检查
//slave 进程正常状态 --Slave_IO_Running: Yes Slave_SQL_Running: Yes
show master status;
C:3310
[mysqld]
server-id=333
change master to
master_host='localhost',
master_port=3309,
master_user='backup',
master_password='',
master_log_file='--', // 3309 master status
master_log_pos=--; // 3309 master status
start slave; // 执行同步进程
show slave status\G //主从同步检查
PS:
这三个数据库都创建相同的用户proxy1/112233,为后续做读写分离准备
转链接:http://freeloda.blog.51cto.com/2033581/1282329