MySQL 主从复制
MySQL 主从复制
大致步骤
注意:改完配置需要重启mysql
主从服务器都需要配置
server_id
(/etc/mysql/my.cnf
[mysqld]
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5> vi /etc/mysql/my.cnf
[mysqld]
log-bin=mysql-bin
server_id=1 #局域网唯一主服务器创建用于复制的mysql用户,比如
slave1
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7mysql -u<username> -p<password>
mysql>
# mysql8:
mysql> create user 'slave1'@'%' identified by '123456';
# create user '<username>'@'<hostname>' identified by '<password>'主服务器将 REPLICATION 权限授予复制数据的用户
slave1
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6mysql -u<username> -p<password>
mysql>
mysql> grant replication slave on *.* to 'slave1'@'%'
# grant replication slave on <database>.<table> to '<username>'@'<hostname>'从服务器设置 master
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9mysql> change master to
master_host='<master hostname | ip>',
master_port=<master port | 3306>,
master_user='<slave user name in master>',
master_password='<slave user password in master>',
master_log_file='<binlog filename>',
master_log_pos=<binlog position>,
master_connect_retry=30;从服务器启动 slave
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mysql> start slave;