检测tomcat假死时重新启动及邮件通知

检测逻辑:连续3次访问tomcat提供的接口,若3次响应码都不为200,则自动重启tomcat
脚本内容:

#!/bin/bash
source /etc/profile
IP=10.78.1.183
PORT=8114
TOMCAT_DIR=/soft/tomcat_8114
function send_mail(){
    maillist=(
        zhengwei.liu@xxx.cn
    )
    DATE=`date +'%F %T'`
    SUBJECT="${IP}的${PORT}端口发生故障,已自动重启!"
    CONTENT="时间:${DATE}\n主机:${IP}\n事件:${PORT}端口发生重启"
        for mail in ${maillist[*]};do
            echo -e "${CONTENT}" | mail -s "${SUBJECT}" $mail
        done
}
declare -i NUM=0
for i in `seq 1 3`;do
    CODE=$(/usr/bin/curl -I -m 10 -o /dev/null -s -w %{http_code}"\n" http://${IP}:${PORT})
    if [ $CODE == "000"  ];then
        ((NUM++))   
    fi
    sleep 3
done
if [ $NUM == 3 ];then
        IS_LIVING=`jps -m -l -v | grep "${PORT}" | wc -l`
        if [ ${IS_LIVING} -eq 1 ];then
                PID=`jps -m -l -v | grep "${PORT}" | awk '{print $1}'`
                kill -9 $PID
                ${TOMCAT_DIR}/bin/startup.sh
        elif [ ${IS_LIVING} -eq 0 ];then
        ${TOMCAT_DIR}/bin/startup.sh
        fi
       send_mail
fi

任务计划:每5分钟检测一次

*/5 * * * * /server/scripts/tomcat/check_8114.sh &> /dev/null
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