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