首先在两台机器上分别安装mysql5.7,然后开始下面的配置
1.主库开启bin-log
server-id=1 #服务器id (主从必须不一样)
log-bin=mysql-bin #打开日志(主机需要打开),这个mysql-bin也可以自定义,这里也可以加上路径
#作为主机的配置
binlog-do-db=employees #要给从机同步的库
log-bin-index=master-bin.index
#binlog-do-db=
binlog-ignore-db=mysql #不给从机同步的库(多个写多行)
binlog-ignore-db=information_schema
binlog-ignore-db=performance_schema
binlog-ignore-db=sys
expire_logs_days=7 #自动清理 7 天前的log文件,可根据需要修改
2.登录主库 创建同步用户 slaver
CREATE USER 'slaver'@'%' IDENTIFIED BY 'root123456';
授权
grant replication slave on *.* to 'slaver'@'%' identified by 'root123456';
3.从库配置
[mysqld]
basedir=/usr/local/mysql #mysql路径
datadir=/data/mysqldata #mysql数据目录
socket=/tmp/mysql.sock
server_id=2 #MySQLid 后面2个从服务器需设置不同
port=3306
#加上以下参数可以避免更新不及时,SLAVE 重启后导致的主从复制出错。
read_only = 1
master_info_repository=TABLE
relay_log_info_repository=TABLE
#relay_log_recovery=1 #从机禁止写
#super_read_only=1 #从机禁止写
relay-log-index=slave-relay-bin.index
relay-log=slave-relay-bin
4.登录从库 设置如下
mysql -uroot -p123456
mysql> stop slave;
mysql> change master to
-> master_host='139.198.13.18', #master的ip
-> master_user='slaver', #备份用户名
-> master_password='root123456', #密码
-> master_log_file='mysql-bin.000001', #要与master的参数一致 登录主库 show marster status查看
-> master_log_pos=154; #且要与master的参数一致 登录主库 show marster status 查看
mysql> start slave;
change master to master_host='139.198.13.18', master_user='slaver', master_password='root123456',master_log_file='mysql-bin.000001',master_log_pos=154;