keepalived双机热备初实践

操作系统 CentOS6.4 64位

keepalived-1.2.16.tar.gz

1、安装

tar xvf keepalived-1.2.16.tar.gz
cd keepalived-1.2.16
./configure
make

make install

cp /usr/local/etc/rc.d/init.d/keepalived /etc/rc.d/init.d/
cp /usr/local/etc/sysconfig/keepalived /etc/sysconfig/
cp /usr/local/sbin/keepalived /usr/sbin/

2、配置

mkdir /etc/keepalived
创建 /etc/keepalived/keepalived.conf文件

! Configuration File for keepalived
global_defs {
   notification_email {
   }
}
vrrp_script check_running {
   script "/opt/check_mysql.sh"
   interval 1
   weight -20
}
vrrp_instance VI_1 {
    state BACKUP
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1