java服务端程序报错后会生成hprof文件，我们可以通过mat工具MemoryAnalyzer进行分析

下载地址：

http://www.eclipse.org/mat/downloads.php

说明：

查看HPROF快照

JProfiler能打开用JVM工具(比如jconsole、 jmap或通过-XX:+HeapDumpOnOutOfMemoryError JVM参数触发)创建的HPROF快照文件

示例：

#!/bin/bash

LANG="zh_CN.UTF-8"

APP_HOME=$(echo `pwd` | sed 's/bin//')

APPPIDFILE=$APP_HOME/app.pid

case $1 in

start)

echo "Starting server... "

HEAP_MEMORY=512m

PERM_MEMORY=64m

JMX_PORT=8888

JMX_HOST=1.1.1.1

JAVA_OPTS="-server -Djava.nio.channels.spi.SelectorProvider=sun.nio.ch.EPollSelectorProvider -XX:+HeapDumpOnOutOfMemoryError -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false "

shift

ARGS=($*)

for ((i=0; i

case "${ARGS[$i]}" in

-D*) JAVA_OPTS="${JAVA_OPTS} ${ARGS[$i]}" ;;

-Heap*) HEAP_MEMORY="${ARGS[$i+1]}" ;;

-Perm*) PERM_MEMORY="${ARGS[$i+1]}" ;;

-JmxPort*) JMX_PORT="${ARGS[$i+1]}" ;;

-JmxHost*) JMX_HOST = "${ARGS[$i+1]}" ;;

esac

done

JAVA_OPTS="${JAVA_OPTS} -Xms${HEAP_MEMORY} -Xmx${HEAP_MEMORY} -XX:PermSize=${PERM_MEMORY} -XX:MaxPermSize=${PERM_MEMORY} -Dcom.sun.management.jmxremote.port=${JMX_PORT} -Djava.rmi.server.hostname=${JMX_HOST} -Dapp.home=${APP_HOME}"

echo "start jvm args ${JAVA_OPTS}"

nohup java -classpath .:./aa-media-2.0.0.jar:$CLASSPATH $JAVA_OPTS com.aaa.media.aaaMediaServer&

echo $! > $APPPIDFILE

echo STARTED

;;

stop)

echo "Stopping server ... "

if [ ! -f $APPPIDFILE ]

then

echo "error: count not find file $APPPIDFILE"

exit 1

else

kill -15 $(cat $APPPIDFILE)

rm $APPPIDFILE

echo STOPPED

fi

;;

*)

echo "Please enter start|stop ... "

;;

esac

exit 0