LVS　DR模式有没有简单的脚本监测real service的在线情况。

# vim auto_lvs.sh
#!/bin/bash
VIP=192.168.1.253:80
checkserver=$(awk '/192.168.1.253:80/&& NR>1 {print $5}' /etc/sysconfig/ipvsadm)
while :
do
for i in $checkserver
do
rev=$(elinks -dump http://$i/index.html 2> /dev/null | grep -o uplooking)
if [ "$rev" = uplooking ]
then
ipvsadm -l -n | grep "$i"
rev1=$?
[ $rev1 -ne 0 ] && ipvsadm $(grep $i /etc/sysconfig/ipvsadm)
else
ipvsadm -d -t $VIP -r "$i"
fi
done
sleep 10s - -每10s检查一次
done
#chmod +x auto_lvs.sh
#nohup /bin/bash auto_lvs.sh & --nohup不随主机的bash窗口而停止执行
#echo 'nohup /bin/bash auto_lvs.sh &' >> /etc/rc.local