mat工具MemoryAnalyzer进行分析java内存溢出hprof文件

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=($*)
    for ((i=0; i<${#ARGS[@]}; i++)); do
        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