mina异步非阻塞传输 程序或系统优化的问题
之前在网上找了个mina的例子,想测试到底能连多少个客户端。结果在我的电脑上是16000个
这是我之前改注册表能达到1.6W个连接的贴子
http://topic.csdn.net/u/20100822/16/b7fb86a6-dfde-4ebf-837b-aab5dc4a5904.html
但这1.6W个的情况是建立在只是单单连接的情况下,还没有传输数据的
今天改了一下程序。当客户端和服务器建立连接后,每个客户端每隔10秒向服务器发送200个字符串
结果是服务器连接10000个客户端都不行,只能大约4500个。
有什么方法可以让服务器支持连接更多的客户端
以下是code
~~~~~~~~~~~~~~~~~~~~~~~~~~~MainClient~~~~~~~~~~~~~~~~~~~~~~~~~~~
package com.javake.mina.sampleserver;
import java.net.InetSocketAddress;
import java.util.concurrent.Executors;
import org.apache.mina.core.future.ConnectFuture;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.executor.ExecutorFilter;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.nio.NioSocketConnector;
public class MainClient
{
public static void main(String[] args) throws Exception
{
// 创建IO连接器
NioSocketConnector connector = new NioSocketConnector();
// 创建接收数据的过滤器
DefaultIoFilterChainBuilder chain = connector.getFilterChain();
//设定这个过滤器将一行一行(/r/n)的读取数据
chain.addLast("myChin",new ProtocolCodecFilter(new TextLineCodecFactory()));
chain.addLast("threadPool", new ExecutorFilter(Executors.newCachedThreadPool()));
//设定服务器端的消息处理器:一个 SamplMinaServerHandler 对象,
connector.setHandler(new SamplMinaClientHandler());
// Set connect timeout.
connector.setConnectTimeoutMillis(3000);
//连结到服务器:
ConnectFuture cf=null;
for(int i=1;i<=0000;i++)
{
//连接服务器
cf = connector.connect(new InetSocketAddress("localhost", 3333));
//等待异步执行的结果返回
cf.awaitUninterruptibly();
}
//等待连接断开
cf.getSession().getCloseFuture().awaitUninterruptibly();
//停止客户端
connector.dispose();
}
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~SamplMinaClientHandler~~~~~~~~~~~~~~~~~~~~~~~~~~~
package com.javake.mina.sampleserver;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.core.service.IoHandlerAdapter;
public class SamplMinaClientHandler extends IoHandlerAdapter
{
public void messageSent(IoSession session, Object message)throws Exception
{
//发送信息成功之后调用,不能用于发信息
}
//当一个客户端连结进入时
public void sessionOpened(IoSession session) throws Exception
{ //向服务器定时10秒发送一个200单位长度的字符串
while(true)
{
session.write("aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa" +
"aaaaaaaaaa");
Thread.sleep(10000);
}
}
//当一个客户端关闭时
public void sessionClosed(IoSession session)
{
System.out.println("one Clinet Disconnect !");
}
//当客户端发送的消息到达时:
public void messageReceived(IoSession session, Object message)throws Exception
{
//什么也不做
}
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~MainServer~~~~~~~~~~~~~~~~~~~~~~~~~~~
package com.javake.mina.sampleserver;
import java.net.InetSocketAddress;
import org.apache.mina.core.filterchain.DefaultIoFilterChainBuilder;
import org.apache.mina.filter.codec.ProtocolCodecFilter;
import org.apache.mina.filter.codec.textline.TextLineCodecFactory;
import org.apache.mina.filter.logging.LogLevel;
import org.apache.mina.filter.logging.LoggingFilter;
import org.apache.mina.transport.socket.SocketAcceptor;
import org.apache.mina.transport.socket.nio.NioSocketAcceptor;
public class MainServer
{
public static void main(String[] args) throws Exception
{
//创建一个非阻塞的Server端Socket,用NIO IO接受器
SocketAcceptor acceptor = new NioSocketAcceptor();
//创建接收数据的过滤器
DefaultIoFilterChainBuilder chain = acceptor.getFilterChain();
//设定这个过滤器将一行一行(/r/n)的读取数据
chain.addLast("myChin", new ProtocolCodecFilter(new TextLineCodecFactory()));
//设定服务器端的消息处理器:一个SamplMinaServerHandler对象,
acceptor.setHandler(new SamplMinaServerHandler());
// 服务器端绑定的端口
int bindPort=3333;
//绑定端口,启动服务器
acceptor.bind(new InetSocketAddress(bindPort));
System.out.println("Mina Server is Listing on:= " + bindPort);
}
}
~~~~~~~~~~~~~~~~~~~~~~~~~~~SamplMinaServerHandler~~~~~~~~~~~~~~~~~~~~~~~~~~~
package com.javake.mina.sampleserver;
import org.apache.mina.core.session.IoSession;
import org.apache.mina.core.service.IoHandlerAdapter;
public class SamplMinaServerHandler extends IoHandlerAdapter
{
int i=0;
int j=0;
//当一个客端端连结进入时
public void sessionOpened(IoSession session) throws Exception
{ //显示有多个少客户端连接过来
System.out.println(++i);
}
//当一个客户端关闭时
public void sessionClosed(IoSession session)
{
System.out.println("Disconnect "+(++j));
}
//当客户端发送的消息到达时:
public void messageReceived(IoSession session, Object message)throws Exception
{
//System.out.println(message.toString().length());
}
}