Home  >  Article  >  Database  >  mysql主从同步配置_MySQL

mysql主从同步配置_MySQL

WBOY
WBOYOriginal
2016-06-01 13:45:151029browse

bitsCN.com

主host:www IP:192.168.9.124
从host:www1 IP:192.168.9.123


#下载mysql
wget http://dev.mysql.com/get/Downloads/MySQL-5.1/mysql-5.1.58-linux-i686-glibc23.tar.gz/from/ftp://mirror.anl.gov/pub/mysql/

#安装mysql
tar xzf mysql-5.1.58-linux-i686-glibc23.tar.gz
useradd mysql
mv mysql-5.1.58-linux-i686-glibc23 /usr/local/mysql

chown -R root .
chown -R mysql data
cp support-files/my-medium.cnf /etc/my.cnf
bin/mysqld_safe --user=mysql &
cp support-files/mysql.server /etc/init.d/mysql.server
cd

export PATH=$PATH:/usr/local/mysql/bin/ # 加入环境变量

 

分别更改主从root密码
# mysql
mysql>update mysql.user set password=password('123456') where user="root" and host="localhost";

www:
mysql> grant all privileges  on *.* to root@192.168.9.123 identified by '123456';   #授权192.168.9.123 登陆mysql
mysql> flush privileges;     #刷新权限表
mysql> exit;

在从服务器测试
www1
# mysql -u root -h 192.168.9.124 -p


www
mysql> FLUSH TABLES WITH READ LOCK;  (主库加锁)
记录日志和偏移量
mysql> show master status ;
mysqldump -p --all-database --lock-all-tables >db.sql


www1
scp -P root@192.168.9.124:/root/db.sql .

#########  修改从my.cnf ############
server-id=2
master-host=192.168.9.124
master-user=slave
master-password=123456
master-port=3306
log-bin=mysql-bin
-----------------------------------
重启mysql
lsof -i:3306 |xargs kill -9
/usr/local/mysql/bin/mysqld_safe --user=mysql &


mysql -p

 

www


mysql>unlock tables ;   (主库解锁)

mysql>show master status ;


www1

mysql> slave stop;

mysql> CHANGE MASTER TO MASTER_HOST='192.168.9.124', MASTER_USER='root',

MASTER_PASSWORD='123456',MASTER_LOG_FILE='mysql-bin.000001',MASTER_LOG_POS=548;  (后面log_file log_pos 参照主库的日志名称和偏移量)

mysql>  slave start ;

查状态

mysql> show master status;

mysql> show slave status;

mysql> show processlist ;

 


www

-A INPUT -s 192.168.9.123 -p tcp --dport 3306 -j ACCEPT 放行192.168.9.123连接3306端口

-A INPUT -p tcp --dport 22 -j ACCEPT #允许ssh

-A INPUT -j DROP  #拒绝所有
作者 “xavier”

bitsCN.com
Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn