GreatSQL手工部署mgr集群

GreatSQL手工部署mgr集群

接上文：

https://www.cnblogs.com/bjx2020/p/15480485.html

一、mgr特殊配置，如非mgr架构，则可以去掉这部分的配置

# 特殊配置
#mgr
loose-plugin_load_add='mysql_clone.so'
loose-plugin_load_add='group_replication.so'

#所有节点的group_replication_group_name值必须相同
#这是一个标准的UUID格式，可以手动指定，也可以用随机生成的UUID
loose-group_replication_group_name="0ad1ab74-e0df-a686-19b0-43389d1c9510"

#指定MGR集群各节点的IP+端口，这个端口是专用于MGR的，不是平常所说的mysqld实例端口
#如果是在多节点上部署MGR集群时，要注意这个端口是否会被防火墙拦截
loose-group_replication_local_address    ="192.168.29.131:33061"  # 这里要换成本地的IP
loose-group_replication_group_seeds= "192.168.29.131:33061,192.168.29.132:33061,192.168.29.133:33061"

#不建议启动mysqld的同时也启动MGR服务
loose-group_replication_start_on_boot=off

#默认不要作为MGR集群引导节点，有需要时再手动执行并立即改回OFF状态
loose-group_replication_bootstrap_group=off

#当退出MGR后，把该实例设置为read_only，避免误操作写入数据
loose-group_replication_exit_state_action=READ_ONLY

#一般没什么必要开启流控机制
loose-group_replication_flow_control_mode = "DISABLED"

#【强烈】建议只用单主模式，如果是实验目的，可以尝试玩玩多主模式
loose-group_replication_single_primary_mode=ON

二、主节点的操作

# 主节点：创建复制用户
SET SQL_LOG_BIN=0;
create user 'repl_user'@'192.168.%' IDENTIFIED with mysql_native_password BY 'A3bW^3s#6#yTV132xc6v';
GRANT backup_admin, REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl_user'@'192.168.%';

create user 'repl_user'@'127.0.0.1' IDENTIFIED with mysql_native_password BY 'A3bW^3s#6#yTV132xc6v';
GRANT backup_admin, REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl_user'@'127.0.0.1';

create user 'repl_user'@'localhost' IDENTIFIED with mysql_native_password BY 'A3bW^3s#6#yTV132xc6v';
GRANT backup_admin, REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl_user'@'localhost';

#设置复制通道
CHANGE REPLICATION SOURCE TO SOURCE_USER='repl_user', SOURCE_PASSWORD='A3bW^3s#6#yTV132xc6v' FOR CHANNEL 'group_replication_recovery';

#设置引导节点，启动主节点
SET GLOBAL GROUP_REPLICATION_BOOTSTRAP_GROUP = ON;
START GROUP_REPLICATION;

#启动完毕后，记得关闭引导设置
SET GLOBAL GROUP_REPLICATION_BOOTSTRAP_GROUP = OFF;

#确认状态
SELECT * FROM PERFORMANCE_SCHEMA.REPLICATION_GROUP_MEMBERS;
SET SQL_LOG_BIN=1;

三、其他节点的操作

# 其他节点
SET SQL_LOG_BIN=0;
create user 'repl_user'@'192.168.%' IDENTIFIED with mysql_native_password BY 'A3bW^3s#6#yTV132xc6v';
GRANT backup_admin, REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl_user'@'192.168.%';

create user 'repl_user'@'127.0.0.1' IDENTIFIED with mysql_native_password BY 'A3bW^3s#6#yTV132xc6v';
GRANT backup_admin, REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl_user'@'127.0.0.1';

create user 'repl_user'@'localhost' IDENTIFIED with mysql_native_password BY 'A3bW^3s#6#yTV132xc6v';
GRANT backup_admin, REPLICATION SLAVE,REPLICATION CLIENT ON *.* TO 'repl_user'@'localhost';

#设置复制通道
CHANGE REPLICATION SOURCE TO SOURCE_USER='repl_user', SOURCE_PASSWORD='A3bW^3s#6#yTV132xc6v' FOR CHANNEL 'group_replication_recovery';

# 非主节点直接启动
START GROUP_REPLICATION;
#确认状态
SELECT * FROM PERFORMANCE_SCHEMA.REPLICATION_GROUP_MEMBERS;
SET SQL_LOG_BIN=1;

　　单主-多主之间的切换详见另一篇文章：mysql-shell部署MGR