# rpm -qa |grep mariadb |xargs yum remove -y
# setenforce 0(临时关闭),(selinux配置文件:SELINUX=disabled,需重启生效)
# systemctl stop iptables
# systemctl stop firewalld
# systemctl disable firewalld.service
# wget -i -c http://dev.mysql.com/get/mysql57-community-release-el7-10.noarch.rpm
# yum -y install mysql57-community-release-el7-10.noarch.rpm
# yum -y install mysql-community-server
# set global validate_password_length=4;(重启失效)
# set global validate_password_policy=0;(重启失效)
# ALTER USER 'root'@'localhost' IDENTIFIED BY '新密码';
# echo 1 > /proc/sys/net/ipv6/conf/all/disable_ipv6
# echo 1 > /proc/sys/net/ipv6/conf/default/disable_ipv6
##在/etc/my.conf下面添加bind-address=0.0.0.0,重启mysql数据库
1.配置文件my.cof中添加下列
#启用二进制日志
log-bin=mysql-bin
#服务器唯一ID,一般取IP最后一段
server-id=195(自定义一个不重复数值)
# CREATE USER 'slave'@'%' IDENTIFIED BY '密码';
# GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO 'slave'@'%';
# flush privileges;
# show master status;
1.配置文件my.cof中添加下列
server-id=215(自定义一个不重复数值)
log-bin=mysql-slave-bin
relay_log=edu-mysql-relay-bin
# change master to master_host='10.27.134.195', master_user='slave', master_password='密码', master_port=3306, master_log_file='mysql-bin.000006(主节点file号)', master_log_pos= 154(主节点日志号), master_connect_retry=30;
# show slave status \G;
# create database hfzwy;
# show databases;