java+flex 企业应用性能问题

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java+flex 企业应用性能问题10

对您的回复，不胜感激.....
在公司项目运用中。利用了flex和java通信的消息机制。 tomcat通过接口接收消息，收到之后。通过消息，从tomcat后台，推给前台的flex。

 
/** * 告警同步消息 
* @author 
* @date 2010-4-14 
*/ 
private void alarmSynMsg(String entityName){ 
MessageBroker msgBroker = MessageBroker.getMessageBroker(null);
 AsyncMessage msg = new AsyncMessage(); 
msg.setDestination(&quot;tick-data-feed&quot;);
 msg.setHeader(&quot;DSSubtopic&quot;, entityName); 
msg.setClientId(entityName);
 msg.setMessageId(UUIDUtils.createUUID()); 
msg.setTimestamp(System.currentTimeMillis()); 
Map map = new HashMap(); 
map.put(&quot;isSYN&quot;, true); 
msg.setBody(map); 
msgBroker.routeMessageToService(msg, null); 
}

前台代码

 
var consumer:Consumer=new Consumer();
consumer.destination="tick-data-feed";
consumer.subtopic=entityName;
consumer.resubscribeAttempts = -1;
consumer.resubscribeInterval = 10*1000;
consumer.addEventListener(MessageEvent.MESSAGE, messageHandler);
consumer.addEventListener(ChannelEvent.DISCONNECT, disconnect);
consumer.addEventListener(ChannelFaultEvent.FAULT, faultHandle);
consumer.subscribe();

推送配置文件如下。

<!-- 推送 -->
		<channel-definition id="my-streaming-amf" class="mx.messaging.channels.StreamingAMFChannel">
            <endpoint url="http://{server.name}:{server.port}/{context.root}/messagebroker/streamingamf" class="flex.messaging.endpoints.StreamingAMFEndpoint"/>
            <properties>
            	<connect-timeout-seconds>10</connect-timeout-seconds>
                <idle-timeout-minutes>0</idle-timeout-minutes>
                <max-streaming-clients>10</max-streaming-clients>
                <server-to-client-heartbeat-millis>1000</server-to-client-heartbeat-millis>
                <user-agent-settings>
                    <user-agent match-on="MSIE" kickstart-bytes="2048" max-streaming-connections-per-session="20"/>
                    <user-agent match-on="Firefox" kickstart-bytes="2048" max-streaming-connections-per-session="20"/>
                </user-agent-settings>
            </properties>
        </channel-definition>

在实际运行当中，几天过后tomcat内存一直增加（平均增加3G），一直到溢出。经过分析 AsyncMessage 类占用了70%的内存。一直得不到释放。
java+flex的项目，怎么优化内存的释放呢？

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