Linux shell自动监控tomcat宕机重启

参考网上例子 整了个 linux 的自动检测tomcat宕机的shell脚本

以后就可以自己重启了  出了问题。。（有时间放到linux定时任务计划里面）\

下面检测的是一个工程里面的图片 来检测tomcat 是否正常

echo 001 这种打断点使用的 可以自己去掉

#!/bin/bash#author: flyerNOL=$(ps -ef |grep tomcat|awk '{print $2}')# echo $NOLSYS=`uname -a|awk '{print $2}'`TLOG=/var/log/tomcat.logPID=/tmp/tomcatTOMCAT_HOME=/alidata/server/apache-tomcat-7.0.62TOMCAT_START=$TOMCAT_HOME/bin/startup.sh  TOMCAT_STOP=$TOMCAT_HOME/bin/shutdown.shDATE=`date +%Y/%m/%d_%H:%M:%S`RESULT=`/usr/bin/wget -S --spider --tries=3 --timeout=3 http://localhost:8080/bimatrixweb/resources/images/logo_bimatrix.png 2>&1 | grep HTTP/1.1|awk '{print $2}'`  echo $RESULT##############PID isn't in#################echo $PID##############tomcat####################### TOMCATPID=`ps -ef|grep tomcat|grep java|grep -v "grep"|awk '{print $2}'`echo $TOMCATPIDif [ "T$RESULT" == "T200" ]; thenecho 003    echo -ne "$SYS $DATE Tomcat is OK!">>$TLOG#echo "$SYS is $NOL about tomcat restart ok"|mail -s $SYS [e-mail] elseecho 004    echo -ne "$DATE Tomcat is down !!">>$TLOG    #echo "$SYS is $NOL about tomcat"|mail -s $SYS [e-mail]#TOMCATPID=`ps -ef|grep tomcat|grep java|grep -v "grep"|awk '{print $2}'`    if [ ! -z "$TOMCATPID" ];then#echo $TOMCATPID#echo  008kill -9 $TOMCATPID  #放开#echo $TOMCATPID        sleep 4    fi   echo 005       echo 开始启动         $TOMCAT_START   #sleep 10   echo "$DATE $SYS'tomcat is restarting"  >>$TLOG       if [ "T$RESULT" == "T200" ]; then      echo 006          echo -ne "$SYS $DATE is $NOL about tomcat restart ok!!" >>$TLOG          #echo "$SYS is $NOL about tomcat restart ok"|mail -s $SYS [e-mail]              else  echo 007          echo -ne "SYS $DATE is $NOL about tomcat failure" >>$TLOG         # echo "TOMCAT restart failure $SYS is $NOL "|mail -s $SYS $NOL [e-mail]         fi fi#fi

参考:http://blog.chinaunix.net/uid-25046147-id-3078397.html

8.1修改了一版本 增加了文件锁 

防止上次脚本还没有执行 下次脚本开始了 开始时候创建个文件 执行完之后删除

然后加入jdk的 环境变量 脚本加入linux的定时计划 不然会报错  

在提示root     13745 31098  0 19:46 pts/4    00:00:00 grep --color=auto tomcat
您在 /var/mail/root 中有新邮件 

 /var/mail/root  root 文件发现错误

Neither the JAVA_HOME nor the JRE_HOME environment variable is defined.

加入环境变量

export JAVA_HOME=/opt/java/jdk1.7.0_75
export JRE_HOME=/opt/java/jdk1.7.0_75/jre

完整代码加入 

#!/bin/bashNOL=$(ps -ef |grep tomcat|awk '{print $2}')# echo $NOLSYS=`uname -a|awk '{print $2}'`TLOG=/var/log/tomcat.logPID=/tmp/tomcatTOMCAT_HOME=/home/thomas/apache-tomcat-7.0.59 TOMCAT_START=$TOMCAT_HOME/bin/startup.sh  TOMCAT_STOP=$TOMCAT_HOME/bin/shutdown.shexport JAVA_HOME=/opt/java/jdk1.7.0_75export JRE_HOME=/opt/java/jdk1.7.0_75/jreDATE=`date +%Y/%m/%d_%H:%M:%S`#RESULT=`/usr/bin/wget -S --spider --tries=3 --timeout=3 http://localhost:8080/revitbus/resources/assets/base/img/layout/logos/logo-1.png 2>&1 | grep HTTP/1.1 | awk '{print $2}'  `#方式1 图片 #RESULT=`/usr/bin/wget -S --spider --tries=3 --timeout=3 http://192.168.2.115:8080/revitbus/resources/assets/base/img/layout/logos/logo-1.png 2>&1 | grep HTTP/1.1|awk '{print $2}'`  #方式2 请求页面RESULT=`/usr/bin/wget -S --spider --tries=3 --timeout=3 http://192.168.2.115:8080/revitbus/news/contactus.html 2>&1 | grep HTTP/1.1|awk '{print $2}'`  #这里定时获取的连接   可以是一个图片 也可以是一个不怎么经常被访问的页面最好比较小的 消耗比较小echo $RESULT##############PID isn't in#################echo $PID##############tomcat####################### TOMCATPID=`ps -ef|grep tomcat|grep java|grep -v "grep"|awk '{print $2}'`echo $TOMCATPID#echo "有其他脚本正在执行，本次退出执行" >$PID 相当于文件锁 防止两个程序同时启动一个宕机的程序if [ -f $PID ];thenecho "文件存在 文件在$filepath" echo "本次程序退出" exit;elseecho "文件不存在 没有文件锁 本次脚本继续往下执行.."echo  "本程序开始执行本次定时任务" >$PID     #加入文件锁fi#mutt -s "Test mail" [e-mail] < /var/log/tomcat.log #$TLOGif [ "T$RESULT" == "T200" ]; thenecho 003    #echo -ne "$SYS $DATE Tomcat is OK!">>$TLOG#echo "$SYS is $NOL about tomcat restart ok"|mail -s $SYS [e-mail] elseecho 004    echo -ne "$DATE Tomcat is down !!">>$TLOG    #echo "$SYS is $NOL about tomcat"|mail -s $SYS [e-mail]#TOMCATPID=`ps -ef|grep tomcat|grep java|grep -v "grep"|awk '{print $2}'`    if [ ! -z "$TOMCATPID" ];then#echo $TOMCATPIDecho  008kill -9 $TOMCATPID  #放开#echo $TOMCATPID        sleep 4    fi   echo 005       # echo 1 >$PID       echo 开始启动   $TOMCAT_START   #sleep 10   echo "$DATE $SYS'tomcat is restarting"  >>$TLOG       if [ "T$RESULT" == "T200" ]; then      echo 006          echo -ne "$SYS $DATE is $NOL about tomcat restart ok!!" >>$TLOG          #echo "$SYS is $NOL about tomcat restart ok"|mail -s $SYS [e-mail]          # rm -rf $PID       else  echo 007          echo -ne "SYS $DATE is $NOL about tomcat failure" >>$TLOG         # echo "TOMCAT restart failure $SYS is $NOL "|mail -s $SYS $NOL [e-mail]         fi firm -rf $PID #程序处理完删除文件锁#fi

定时计划 

# For more information see the manual pages of crontab(5) and cron(8)
*/20  * * * *    /home/bowen/tomcatMonitorNew.sh 
# */1 * * * * echo “Hello World.” >> /alidata/test

关于定时任务 参考文章

http://blog.csdn.net/albertfly/article/details/51338295

注意使用的时候 记得给这个sh 可执行文件赋权限

chmod 777  tomcatMonitorNew.sh