tomcat服务监控分析及自启

#! /bin/bash
# process-monitor.sh

serverName="/usr/local/apache-tomcat-7.0.72-8080"
#获取进程id
pid=$(ps x | grep $serverName | grep -v grep | awk '{print $1}')
echo $pid

#如果当前服务进程存在
if [ -n "$pid" ];then
	mkdir /home/$pid

	#dump 方法栈信息
	jstack $pid > /home/$pid/jstack.txt

	#dump jvm内存使用情况
	jmap -heap $pid > /home/$pid/jmapheap.txt

	#dump jvm二进制的内存详细使用情况 （set JAVA_OPTS=%JAVA_OPTS% -server -XX:+HeapDumpOnOutOfMemoryError -XX:HeapDumpPath=D:\heapdump）
	jmap -dump:format=b,file=/home/$pid/jmapdump.txt $pid

	echo "=====================please input Ctrl + C================="
	# dump 某进程的子线程内存和cpu使用情况（top -n1 -Hp $pid   加了-n1则表示只输出一次否则阻塞一直输出直到手动停止）
	top -Hp $pid > /home/$pid/top-Hp.txt

	echo "=====================tomcat shutdowning================="

	$serverName/bin/shutdown.sh

	echo "=====================tomcat shutdowned====================="

	kill -9 $pid

	echo "=====================tomcat killed====================="

fi

$serverName/bin/startup.sh

tail -f $serverName/logs/catalina.out