脚本代码：

复制代码 代码如下:

#!/bin/bash

#变量初始化

process="php-fpm" #进程名

startCmd="/etc/init.d/php-fpm start" #启动命令

down=0

while true

do

#取得http状态码

code=$(curl -H "Host:www.jb51.net" -m 5 -L -s -w %{http_code} http://127.0.0.1 -o /dev/null)

#当状态码返回000或者大于等于500时,计数故障到down变量

if [ $code -eq 000 -o $code -ge 500 ];then

((down++))

else

break

fi

#稍等5s

sleep 5

#判断是否连续检测三次都为故障.

if [ $down -ge 3 ];then

if [ "$(find /tmp/${process}_restart -mmin -3)" == "" ];then

#取得进程名对应的所有pid

pids=$(ps aux | grep ${process} | grep -v "grep" | awk '{print $2}')

#依次对所有pid执行kill命令

for i in $pids;do

kill -9 $i

kill -9 $i

done

#kill完pid后,启动服务

$startCmd

echo "$(date) Return code $code,${process} had been restarted" >> /tmp/${process}_restart

else

echo "$(date) ${process} not yet recovery.As it had been restarted in 2 minutes.so this time ignore." >> /tmp/${process}_not_restart

fi

break

fi

done