一。关闭防火墙和selinux

systemctl stop firewalld

systemctl disable firewalld

setenforce 0

二。本地地址解析

三。下载PXC包，并且进行安装

wget https://repo.percona.com/yum/release/7/RPMS/x86_64/qpress-11-1.el7.x86_64.rpm

yum localinstall *.rpm -y

四。配置mysql文件

systemctl start mysqld

五。在mysql上面创建用户并且授权

CREATE USER 'admin'@'%' IDENTIFIED WITH mysql_native_password BY 'Abc_123456'; GRANT all privileges ON *.* TO 'admin'@'%';

六。在所有节点上编辑 vi /etc/my.cnf.d/mysql-server.cnf  文件，添加以下内容：

七。在pxc1进行节点拷贝

scp /var/lib/mysql/*.pem pxc2:/var/lib/mysql/

scp /var/lib/mysql/*.pem pxc3:/var/lib/mysql/

八。修改权限

chown -R mysql.mysql /var/lib/mysql/

systemctl start mysqld

九。下载haproxy

yum install haproxy -y

十。配置haproxy：vi /etc/haproxy/haproxy.cfg 

systemctl start haproxy

systemctl enable haproxy

十一。下载keepalived

yum install keepalived -y

systemctl start keepalived

systemctl enable keepalived