介绍shell脚本部署mysql主从

导读	MySQL的主从复制可以实现将数据从一台数据库服务器（master）复制到一台或多台数据库服务器(slave)上，进而可以保证数据有多份冗余。今天我们来详细说下，shell脚本部署mysql主从Linux就该这么学

服务器配置信息如下：
centos6两台
Master IP：192.168.88.153
Slave IP：192.168.88.152

配置免密登录

ssh-keygen -t rsa
ssh-copy-id [email protected]

编写mysql_master脚本

#!/bin/bash
service iptables stop
setenforce 0
yum -y install mysql mysql-server
sed -ie '7a\server-id=1\nlog-bin=mysql-bin\nrelay-log\n' /etc/my.cnf
service mysqld restart
mysql -e " grant all on *.* to 'tom'@'%' identified by '123'; "
mysql -e " flush privileges; "
mysql -e " show master status; "

编写mysql_slave脚本

#!/bin/bash
bin=`ssh [email protected] "mysql -e 'show master status;'|grep mysql"`
file=`echo $bin|awk -F ' ' '{print $1}'`
pos=`echo $bin|awk -F ' ' '{print $2}'`
service iptables stop
setenforce 0
yum -y install mysql mysql-server
sed -ie '7a\server-id=1\nlog-bin=mysql-bin\nrelay-log\n' /etc/my.cnf
service mysqld start
mysql -e "change master to master_host='192.168.88.152',master_user='tom',master_password='123',master_log_file='$file',master_log_pos=$pos;"
mysql -e 'start slave'
mysql -e 'show slave status \G;'

IO=`mysql -e "show slave status\G;" 2>/dev/null |grep Slave_IO_Running|awk -F ':' '{print $2}'`
SQL=`mysql -e "show slave status\G;" 2>/dev/null |grep Slave_SQL_Running|awk -F ':' '{print $2}'`
if [ $IO == "Yes" -a $SQL == "Yes" ]
then
echo "成功"
else
echo "失败"
fi

将mysql_slave.sh复制到slave主机

scp mysql_slave.sh 192.168.88.153:/root/

执行脚本

sh mysql_master.sh
ssh [email protected] "sh /root/mysql_slave.sh"