问题描述

netty测试高并发的问题

先上代码，大家帮忙看下。
服务端：
package Server;
import io.netty.bootstrap.ServerBootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioServerSocketChannel;
public class HelloServer {
private static final int port = 7878;

public void start() throws InterruptedException {

  EventLoopGroup bossGroup = new NioEventLoopGroup();  EventLoopGroup workGroup = new NioEventLoopGroup();  try {        ServerBootstrap b = new ServerBootstrap();        b.group(bossGroup workGroup);        b.channel(NioServerSocketChannel.class);        b.option(ChannelOption.SO_BACKLOG 1024);        b.childHandler(new SCCHandler());        // 绑定端口        ChannelFuture f = b.bind(port).sync();        // 等待服务端监听端口关闭        f.channel().closeFuture().sync();    } finally {        // 优雅的退出        bossGroup.shutdownGracefully();        workGroup.shutdownGracefully();    }

}

public static void main(String[] args) {
try {
new HelloServer().start();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}

客户端测试高并发的DEMO：

package Client;

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

import io.netty.bootstrap.Bootstrap;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelOption;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.nio.NioEventLoopGroup;
import io.netty.channel.socket.nio.NioSocketChannel;

public class HelloClient {
public static void main(String[] args) throws Exception {
ScheduledExecutorService scheduledThreadPool = Executors
.newScheduledThreadPool(3000);
for (int i = 0; i < 3000; i++) {
scheduledThreadPool.schedule(new Runnable() {
public void run() {
try {
System.out.println(""go"");
new HelloClient(""192.168.2.88"" 7878).start();
} catch (Exception e) {
System.out.println(""压力测试失败->"" + e.toString());
}
}
} 200 TimeUnit.MILLISECONDS);
}
System.out.println(""压力测试提交完成"");
}

private final String host;private final int port;public HelloClient(String host int port) {    this.host = host;    this.port = port;}public void start() throws Exception {    System.out.println(""链接服务器开始"");    EventLoopGroup group = new NioEventLoopGroup();    try {        Bootstrap b = new Bootstrap();        b.group(group);        b.channel(NioSocketChannel.class);        // b.remoteAddress(new InetSocketAddress(host port));        b.option(ChannelOption.TCP_NODELAY true);        b.handler(new ClientCCHandler());        // ChannelFuture f = b.connect().sync();        ChannelFuture f = b.connect(host port);        f.channel().closeFuture().sync();    } finally {        group.shutdownGracefully();    }}

}

到5000以上就就会出现无法连接的状态了……求解！！