環境介紹

安裝MySQL

配置Master端

# mysql -u root -p
mysql> grant replication slave on *.* TO [email protected]'slave伺服器的ip' identified by 'slave使用者的密碼';
mysql> flush privileges;
mysql> quit

修改/etc/my.cnf 加入

bind-address = 0.0.0.0
server-id = 1
log-bin = mysql-bin
binlog-ignore-db = "mysql"

#service mysqld restart
 

# mysql -u root -p
mysql> FLUSH TABLES WITH READ LOCK;
mysql> SHOW MASTER STATUS;

# mysqldump -u root -p --databases 資料庫1 資料庫2 > /root/db_dump.sql

# mysql -u root -p
mysql> UNLOCK TABLES;

scp /root/db_dump.sql [private-IP-of-db02]:/root/
 

配置Slave端

bind-address = 0.0.0.0
server-id = 2

# mysql -u root -p < /root/db_dump.sql
# service mysqld restart

mysql> SLAVE STOP;
mysql> CHANGE MASTER TO MASTER_HOST='Master端IP地址', 
MASTER_PORT=埠號,
MASTER_USER='slave', 
MASTER_PASSWORD='slave使用者的密碼'

mysql> START SLAVE;
mysql> SHOW SLAVE STATUS\G

# mysql -u root -p
mysql> create database testing;
mysql> use testing
mysql> create table users(id int not null auto_increment, primary key(id), username varchar(30) not null);
mysql> insert into users (username) values ('foo');
mysql> insert into users (username) values ('bar');
mysql> exit

mysql> use testing;
mysql> select * from users;

Slave端無法更新資料

<span style="font-family: 'Microsoft YaHei';">mysql> stop slave;</span>

mysql> reset slave;
mysql> master change to master_host='10.1.18.100',master_port=3306,master_user='slave',master_password='Slave的密碼',

master_log_file='master端當前的日誌',master_log_pos=master日誌的當前編號;

mysql> start slave;