tomcat监控

参考：http://www.linuxidc.com/Linux/2012-11/74003.htm

#!/bin/sh
monitorlog=/opt/tomcat7/logs/monitor.log

monitor()
{
	tomcatid=$(ps -ef |grep tomcat |grep -w 'tomcat7'|grep -v 'grep'|awk '{print $2}')
	tomcatup=/opt/tomcat7/bin/startup.sh
	tomcatcache=/opt/tomcat7/work
	tomcaturl=http://www.baidu.com/ok.jsp

	echo "[info]$(date +'%F %H:%M:%S')"
	echo "[info]($tomcatid)"
	if [ $tomcatid ]; then
		http_code=$(curl -s -o /dev/null --connect-timeout 10 -m 20 $tomcaturl -w %{http_code})
		if [ $http_code -eq 200 ]; then
			echo "[info]tomcat ok"
		else
			echo "[error]tomcat died ($http_code)"
			kill -9 $tomcatid
			sleep 3
			rm -rf $tomcatcache
			$tomcatup
		fi
	else
		echo "[error]tomcat none"
		echo "[info]tomcat start"
		rm -rf $tomcatcache
		$tomcatup
	fi
}

monitor>>$monitorlog