mariadb1: 192.168.11.247

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mariadb2: 192.168.11.246

1 mariadb1配置
vi /etc/my.cnf.d/server.cnf

[MySQLd]

server-id = 1

log-bin = master-log

relay-log = slave-log

auto_increment_offset = 1

auto_increment_increment = 2

2 mariadb2配置
vi /etc/my.cnf.d/server.cnf

[mysqld]

server-id = 2

log-bin = master-log

relay-log = slave-log

auto_increment_offset = 2

auto_increment_increment = 2

3 重启mariadb服务

systemctl restart mariadb

4 mariadb1主, mariadb2从配置

mariadb1在sql里面执行:
MariaDB [(none)]> create user 'lan'@'192.168.11.%' identified by '666666';
MariaDB [(none)]> grant replication slave on . to 'lan'@'192.168.11.%';
show master status;

mariadb2在sql里面执行:
#log_file和log_pos的数据是mariad1上show master status得到的数据
change master to master_host='192.168.11.247', master_user='lan', master_password='666666', master_log_file='master-log.000001', master_log_pos=498;
start slave;
show slave status\G;

5 mariadb2为主, mariadb1从配置

mariadb2在sql里面执行:
MariaDB [(none)]> create user 'lan'@'192.168.11.%' identified by '666666';
MariaDB [(none)]> grant replication slave on . to 'lan'@'192.168.11.%';
show master status;

mariadb1在sql里面执行:
#log_file和log_pos的数据是mariad2上show master status得到的数据
change master to master_host='192.168.11.246', master_user='lan', master_password='666666', master_log_file='master-log.000001', master_log_pos=498;
start slave;
show slave status\G;

至此, 主主同步复制配置完成,撒花
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