CentOS服务器上监控tomcat，如果挂掉则重启

该脚本用于监控tomcat服务器是否可用，如果服务不可用则重启tomcat

略微修改后也可以用于其他服务的监控

monitor.sh 脚本如下

 1 #!/bin/sh
 2 
 3 
 4 # 定义要监控的页面地址
 5 WebUrl="http://xxxxxxx.com"
 6 GetPageInfo=/dev/null
 7 
 8 
 9 while [ "1" = "1" ]
10 do
11 
12 TomcatServiceCode=$(curl -s -o $GetPageInfo -m 10 --connect-timeout 10 $WebUrl -w %{http_code})
13 echo "`date "+%Y-%m-%d %H:%M:%S"` : TomcatServiceCode:"$TomcatServiceCode
14 
15 #如果返回不是http 200 ，说明tomcat已经挂断
16 #需要杀掉进程，并重启tomcat
17   if [ $TomcatServiceCode -eq 200 ];then
18      echo "`date "+%Y-%m-%d %H:%M:%S"` :tomcat is okay."
19   else
20     ID=`ps -ef | grep tomcat | grep -v "grep" | awk '{print $2}'`
21     echo $ID    
22     for id in $ID
23     do
24      kill -9 $id
25      echo "`date "+%Y-%m-%d %H:%M:%S"` : killed $id"
26     done
27     echo "`date "+%Y-%m-%d %H:%M:%S"` : PID have been killed"
28     echo "`date "+%Y-%m-%d %H:%M:%S"` : begin to restart the tomcat."
29     service tomcat start
30     echo "`date "+%Y-%m-%d %H:%M:%S"` : tomcat have been restarted."
31   fi
32 echo "check done."
33 echo "`date "+%Y-%m-%d %H:%M:%S"` sleep 60s and wait next check.."
34 sleep 60s 
35 done

启动脚本

nohup ./monitor.sh >/dev/null 2>&1