keepalived高可用存在的问题及解决方案

Nginx作负载均衡，keepalived配合Nginx作高可用，当Nginx宕机后，备节点（负载均衡）不会接管业务。原因：

keepalived实现的是服务器级别的接管

解决办法：通过写脚本实现 check_nginx.sh

#!/bin/sh

for i in {1,2,3}

do

if [ `ps -ef | grep nginx | grep -v grep | wc -l` -lt 3 ]

then

/etc/init.d/keepalived stop;

sleep 5;

fi

done

 

放在后台执行

sh check_nginx.sh &