# 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
- more /var/log/mysqld.log 查看初始口令
- 修改初始口令(2个节点都需要修改)
# 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";
- 配置IPV4端口(2个节点都需要配置)
# 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
主节点:
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)
- 新建同步账号slave
# CREATE USER "slave"@"%" IDENTIFIED BY "密码";
# GRANT REPLICATION SLAVE, REPLICATION CLIENT ON *.* TO "slave"@"%";
# flush privileges;
- 记录信息
# show master status;
从节点:
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
- 建立主从连接
# 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;
- 查看连接状态
# show slave status G;
- 在主节点上新建库
# create database hfzwy;
- 在从节点上查看是否同步
# show databases;
本文来自云海天,作者:苏冷,转载请注明原文链接:https://www.cnblogs.com/jiangshusheng/p/15853289.html