简易双机高可用实现脚本

来源：互联网发布：电动飞机杯知乎编辑：程序博客网时间：2024/06/05 15:56

如下两台机器：
A：192.168.136.79
B：192.168.136.78

对外IP：192.168.136.115

在A和B上分别运行如下脚本：
#!/bin/bash
addr="192.168.136.115"
trap ctrl_c INT
function ctrl_c() {
echo "receive ctl-c"
/etc/init.d/nfs-kernel-server stop
ip addr del ${addr}/24 dev eth0
echo "release ${addr}"
exit 0
}
case $1 in
start)
while true
do
if
/bin/ping -w 2 ${addr}>/dev/null 2>&1
then
echo "target ok--"`date`
else
echo "target failed, stoping service--"`date`
echo ""
if
/etc/init.d/nfs-kernel-server stop
then
echo "service stoped successfully--"`date`
echo ""
echo "attach ip, --"`date`
ip addr add ${addr}/24 dev eth0
echo "start service--"`date`
echo ""
/etc/init.d/nfs-kernel-server start
echo "service started, --"`date`
echo ""
fi
echo "done--"`date`
fi
sleep 3
done
;;
stop)
p=`ps ax|grep 'ipmonitor'|grep -v 'stop'|grep -v 'grep'|awk '{print $1}'`
kill ${p}
ip addr del ${addr}/24 dev eth0
;;
esac

简易双机高可用 实现脚本

简易双机高可用实现脚本