Tomcat监测脚本的实现示例

实现效果

通过 Tomcat 监测脚本 按照一定的时间频度来检测Tomcat应用是否正常，如果进程不存在，则启动 Tomcat；如果进程存在而访问不正常，则杀掉进程，再启动 Tomcat。

脚本的主体

vi /home/dev/ctl/tomcat-inspector/image.sh#!/bin/bashecho $(date '+%Y-%m-%d %H:%M:%S')whoamiJAVA_HOME=/opt/java/jdk1.8.0_40PATH=$JAVA_HOME/bin:$PATHexport PATH JAVA_HOMEport=8086sn="tomcat-image-$port"th="/home/dev/tomcat/$sn"url="http://you-app-server/"tomcat=`ps -ef | grep java | grep $sn | grep $port | wc -l`if [ $tomcat -eq 0 ]then  echo $sn stoped.  echo starting $sn ......  $th/bin/startup.shfiif [ $tomcat -ge 1 ]then  tpid=`ps -ef | grep java | grep $sn | grep $port | awk '{print $2}'`  echo $sn is running, pid = $tpid  httpStatus=`curl -I $url 2>/dev/null | grep HTTP | awk '{print $2}'`  echo $httpStatus  if [[ -z "$httpStatus" || $httpStatus -ge 500 ]]  then    echo killing $sn ......    kill -9 $tpid    echo starting $sn ......    $th/bin/startup.sh  fifi