MariaDB主主半同步,也就是两个主从同步都开启半同步复制。
一. MariaDB01主 MariaDB02从 开启半同步复制
1. MariaDB01 主
SET GLOBAL rpl_semi_sync_master_enabled = 1;
2. MariaDB02 从
SET GLOBAL rpl_semi_sync_slave_enabled = 1;
stop slave;
start slave;
二. MariaDB02主 MariaDB01从 开启半同步复制
1. MariaDB02 主
SET GLOBAL rpl_semi_sync_master_enabled = 1;
2. MariaDB01 从
SET GLOBAL rpl_semi_sync_slave_enabled = 1;
stop slave;
start slave;
三. 查看半同步状态
1. MariaDB01
SHOW GLOBAL VARIABLES LIKE '%semi%';
![](/UpLoads/images/DATA/Mysql/20230107011204164742.jpg)
SHOW GLOBAL STATUS LIKE 'rpl_semi%';
![](/UpLoads/images/DATA/Mysql/20230107011204553453.jpg)
2. MariaDB02
SHOW GLOBAL VARIABLES LIKE '%semi%';
![](/UpLoads/images/DATA/Mysql/20230107011204504789.jpg)
SHOW GLOBAL STATUS LIKE 'rpl_semi%';
![](/UpLoads/images/DATA/Mysql/20230107011204754046.jpg)
至此,主主半同步复制配置完成。