欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页  >  数据库

MySQL双向同步_MySQL

程序员文章站 2024-01-01 17:41:58
...
1.服务器状态
服务器A:192.168.1.1
服务器B:192.168.1.2

2.创建同步用户
主机域A:192.168.1.2  用户名A:sync_a  密码A:aaa
主机域B:192.168.1.1  用户名B:sync_b  密码B:bbb
至少分配以下权限grant replication slave

3.执行flush privileges

4.停止MySQL

5.配置my.cnf(my.ini)

服务器A 服务器B
user = mysql
log-bin = mysql-bin
server-id = 1
binlog-do-db = test
binlog-ignore-db = mysql
replicate-do-db = test
replicate-ignore-db = mysql
log-slave-updates
slave-skip-errors = all
sync_binlog = 1
user = mysql
log-bin = mysql-bin
server-id = 2
binlog-do-db = test
binlog-ignore-db = mysql
replicate-do-db = test
replicate-ignore-db = mysql
log-slave-updates
slave-skip-errors = all
sync_binlog = 1

server-id必须唯一
binlog-do-db和replicate-do-db表示需要同步的数据库
binlog-ignore-db和replicate-ignore-db表示不需要同步的数据库
不要加入以下命令,该命令并不会解决uid跳号的问题,恰恰相反以下两行命令才是导致uid跳号的罪魁祸首
auto_increment_increment = 2
auto_increment_offset = 1

6.重新启动MySQL

7.进入MySQL控制台

服务器A:
show master status /G
flush tables with read lock;
服务器B:
show master status /G
flush tables with read lock;

同时记录下两台服务器的File和Position,此处假设:

A: File: mysql-bin.000001
  Position: 001
B: File: mysql-bin.000002
  Position: 002

服务器A:
change master to
-> master_host='192.168.1.2',
-> master_user='sync_b',
-> master_password='bbb',
-> master_log_file='mysql-bin.000002',
-> master_log_pos=002;
服务器B:
change master to
-> master_host='192.168.1.1',
-> master_user='sync_a',
-> master_password='aaa',
-> master_log_file='mysql-bin.000001',
-> master_log_pos=001;

此处填写的数据完全相反

8.执行show processlist /G查看是否同步成功

上一篇:

下一篇: