1、初始化准备，四台设备
master:192.168.2.6
slave:192.168.2.16
proxysql:192.168.2.26
Client:192.168.2.100,用于测试2、搭建好主从服务器
master:主
[root@master ~]# yum -y install mariadb-server
[root@master ~]# vim /etc/my.cnf
[mysqld]
server_id=6
binlog_format=row
log_bin
skip_name_resolve
[root@master ~]# systemctl start mariadb
MariaDB [(none)]> grant replication slave on *.* to repluser@'192.168.2.%' identified by '123456'; #创建复制账号
slave:从
[root@slave ~]# yum -y install mariadb-server
[root@slave ~]# vim /etc/my.cnf
[mysqld]
read-only
server_id=16
skip_name_resolve
binlog_format=row
[root@slave ~]# systemctl start mariadb
MariaDB [(none)]> CHANGE MASTER TO
-> MASTER_HOST='192.168.2.6',
-> MASTER_USER='repluser',
-> MASTER_PASSWORD='123456',
-> MASTER_PORT=3306,
-> MASTER_LOG_FILE='mariadb-bin.000001',
-> MASTER_LOG_POS=245;
Query OK, 0 rows affected (0.02 sec)
MariaDB [(none)]> start slave;
MariaDB [(none)]> show slave status\G3、测试主从同步是否正常
master:
MariaDB [(none)]> create database db1;
slave:
MariaDB [(none)]> show databases;4、搭建proxysql yum仓库
proxysql:
[root@proxysql ~]# cat < [proxysql_repo]
> name= ProxySQL YUM repository
> baseurl=http://repo.proxysql.com/ProxySQL/proxysql-1.4.x/centos/\$releasever
> gpgcheck=1
> gpgkey=http://repo.proxysql.com/ProxySQL/repo_pub_key
> EOF 5、安装proxysql和mariadb客户端工具
proxysql: 6032管理端口、 6033连接端口
[root@proxysql ~]# yum -y install proxysql mariadb
[root@proxysql ~]# rpm -ql proxysql
[root@proxysql ~]# service proxysql start #老的启动方法
[root@proxysql ~]# ll /var/lib/proxysql/ #proxysql简化版的关系型数据库，用来存放proxysql配置6、连接proxysql,在main. mysql_servers 加入主从服务器记录
proxysql:
[root@proxysql ~]# mysql -uadmin -padmin -P6032 -h127.0.0.1 #账号密码默认admin
MySQL [(none)]> insert into mysql_servers(hostgroup_id,hostname,port) values(10,'192.168.2.6',3306); #组id，ip,端口
MySQL [(none)]> insert into mysql_servers(hostgroup_id,hostname,port) values(10,'192.168.2.16',3306);
MySQL [(none)]> select * from mysql_servers; #查看添加的记录信息7、主从服务器添加管理账户供proxysql机器来管理
master:
MariaDB [(none)]> grant replication client on *.* to monitor@'192.168.2.%' identified by '123456'; #主从复制已经建立，只要在主服务器添加即可8、设置使用monitor用户连接主从服务器 #main.global_variables表
proxysql:
MySQL [(none)]> set mysql-monitor_username='monitor';
MySQL [(none)]> set mysql-monitor_password='123456';
MySQL [(none)]> load mysql variables to runtime; #加载生效
MySQL [(none)]> save mysql variables to disk; #保存到磁盘9、设置分组信息 #需要修改的是main库中的mysql_replication_hostgroups表
proxysql:
MySQL [(none)]> insert into mysql_replication_hostgroups values(10,20,"test"); #10组负责写，20负责读
MySQL [(none)]> select * from mysql_replication_hostgroups; #查看添加的记录
MySQL [(none)]> load mysql servers to runtime; #加载生效
MySQL [(none)]> save mysql servers to disk; #保存到磁盘
MySQL [(none)]> select * from mysql_servers; #再次查看记录，proxysql已经区分读写id了10、在master节点创建访问用户，用于主从服务器去访问中间件proxysql #主从复制已经建立，只要在主服务器添加即可
master：
MariaDB [(none)]> grant all on *.* to sqluser@'192.168.2.%' identified by '123456';11、将创建访问调度器proxysql的客户端用户sqluser加入proxysql服务器的
mysql_users表中
proxysql:
MySQL [(none)]> insert into mysql_users(username,password,default_hostgroup) values('sqluser','123456',10); #default_hostgroup默认
组设置为写组10，
MySQL [(none)]> load mysql users to runtime; #生效
MySQL [(none)]> save mysql users to disk; #存盘12、使用客户端测试
Client：
[root@centos6 ~]# mysql -usqluser -p123456 -h192.168.2.26 -P6033 -e 'select @@server_id';13、设置调度规则
proxysql:
MySQL [(none)]> insert into mysql_query_rules
-> (rule_id,active,match_digest,destination_hostgroup,apply)VALUES
-> (1,1,'^SELECT.*FOR UPDATE$',10,1),(2,1,'^SELECT',20,1);
Query OK, 2 rows affected (0.00 sec) #读调度到20组，写调度到10组
MySQL [(none)]> load mysql query rules to runtime; #生效
MySQL [(none)]> save mysql query rules to disk; #保存14、客户端测试
Client：
[root@centos6 ~]# mysql -usqluser -p123456 -h192.168.2.26 -P6033 -e 'select @@server_id';