Linux监控tomcat状态,自动重启
1.
monitor.html放到项目根目录,可以通过http://127.0.0.1/monitor.html访问到
2.
monitor_tomcat.sh放到服务器后
1 2 3 | vi monitor_tomcat.sh :set ff=unix :wq |
赋予monitor_tomcat.sh可执行权限：
1 | chmod 777 monitor_tomcat.sh |
手动执行一下monitor_tomcat.sh看是否能启动指定位置的tomcat
1 | ./monitor_tomcat.sh |
3.
/etc/profile 中添加
1 2 | export JAVA_HOME=/home/app/java/jdk1.8.0_231 export JRE_HOME=/home/app/java/jdk1.8.0_231/jre |
执行source /etc/profile
tomcat/catalina.sh中添加
1 2 | export JAVA_HOME=/home/app/java/jdk1.8.0_231 export JRE_HOME=/home/app/java/jdk1.8.0_231/jre |
4.
添加进crontab中
1 | crontab -e |
添加每5分钟执行一次脚本进行tomcat检测
1 | */5 * * * * /home/app/monitor_tomcat.sh |
如果 执行monitor_tomcat.sh出以下错误
-bash: ./monitor_tomcat.sh: /bin/sh^M: bad interpreter: No such file or directory
1 2 3 | vi monitor_tomcat.sh :set ff=unix :wq |
monitor.html
1 | <html lang="en"><head></head><body>it's ok!</body></html> |
monitor_tomcat.sh
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 | #!/bin/sh # func:Automatically monitor Tomcat and perform restart operation # Get Tomcat process ID(Where... In [grep - W '...'] needs to be replaced with the name of the Tomcat folder actually deployed, as follows) TomcatID=$(ps -ef |grep tomcat |grep -w '/home/app/tomcat/apache-tomcat-8.5.47'|grep -v 'grep'|awk '{print $2}') # Get the number of repeated starts of the same Tomcat TomcatCount=$( ps -ef |grep tomcat |grep -w '/home/app/tomcat/apache-tomcat-8.5.47/tomcat_autoupdate'|grep -v 'grep'|awk '{print $2}' |wc -l) # Tomcat launcher (note the actual installation path of Tomcat here) StartTomcat=/home/app/tomcat/apache-tomcat-8.5.47/bin/startup.sh TomcatCache=/home/app/tomcat/apache-tomcat-8.5.47/work # Define the page address to monitor WebUrl=http://127.0.0.1/monitor.html # Log output GetPageInfo=/tmp/tomcat_oip_back_visit.info TomcatMonitorLog=/tmp/tomcat_oip_back_monitor.log Monitor() { echo "[info]Start monitoring Tomcat...[$(date +'%F %H:%M:%S')]" #Here, it's determined whether the Tomcat process has been repeatedly started.If it has been repeatedly started,all the processes will be killed if [[ $TomcatCount -gt 1 ]];then ps -ef |grep tomcat |grep -w '/home/app/tomcat/apache-tomcat-8.5.47/tomcat_autoupdate'|grep -v 'grep'|awk '{print $2}' | xargs kill -9 echo "Open $tomcatcount processes in the same tomcat, and kill them all" sleep 5 else if [ $TomcatID ];then #Here, judge whether the Tomcat process exists echo "[info]The current Tomcat process ID is:$TomcatID,Continue to test page..." # Check whether the startup is successful (if it is successful,the page will return to the status "200"),if there is no response in 100 seconds, it will not wait TomcatServiceCode=$(curl -s -o $GetPageInfo -m 100 --connect-timeout 100 $WebUrl -w %{http_code}) if [ $TomcatServiceCode -eq 200 ];then echo "[info]The return code of the page is $tomcatservicecode,Tomcat is started successfully,and the test page is normal" else echo "[error]Error in Tomcat page, please note... Status code is $tomcatservicecode, error log has been output to $getpageinfo" echo "[error]Page access error, start to restart Tomcat" kill -9 $TomcatID # Kill Tomcat process sleep 5 # rm -rf $TomcatCache # Clean up Tomcat cache $StartTomcat fi else echo "[error]Tomcat process does not exist! Tomcat starts to restart automatically" echo "[info]$StartTomcat, please wait" # rm -rf $TomcatCache $StartTomcat fi fi echo "--------------------------" } Monitor>>$TomcatMonitorLog |
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