Examples of org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory

Package org.jboss.netty.channel.socket.nio

Examples of org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory

org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory
A {@link ServerSocketChannelFactory} which creates a server-side NIO-based{@link ServerSocketChannel}. It utilizes the non-blocking I/O mode which was introduced with NIO to serve many number of concurrent connections efficiently.
How threads work

There are two types of threads in a {@link NioServerSocketChannelFactory}; one is boss thread and the other is worker thread.
Boss threads

Each bound {@link ServerSocketChannel} has its own boss thread.For example, if you opened two server ports such as 80 and 443, you will have two boss threads. A boss thread accepts incoming connections until the port is unbound. Once a connection is accepted successfully, the boss thread passes the accepted {@link Channel} to one of the workerthreads that the {@link NioServerSocketChannelFactory} manages.
Worker threads

One {@link NioServerSocketChannelFactory} can have one or more workerthreads. A worker thread performs non-blocking read and write for one or more {@link Channel}s in a non-blocking mode.
Life cycle of threads and graceful shutdown

All threads are acquired from the {@link Executor}s which were specified when a {@link NioServerSocketChannelFactory} was created. Boss threads areacquired from the {@code bossExecutor}, and worker threads are acquired from the {@code workerExecutor}. Therefore, you should make sure the specified {@link Executor}s are able to lend the sufficient number of threads. It is the best bet to specify {@linkplain Executors#newCachedThreadPool() a cached thread pool}.
Both boss and worker threads are acquired lazily, and then released when there's nothing left to process. All the related resources such as {@link Selector} are also released when the boss and worker threads arereleased. Therefore, to shut down a service gracefully, you should do the following:
1. unbind all channels created by the factory,
2. close all child channels accepted by the unbound channels, and
3. call {@link #releaseExternalResources()}.
Please make sure not to shut down the executor until all channels are closed. Otherwise, you will end up with a {@link RejectedExecutionException}and the related resources might not be released properly. @author The Netty Project (netty-dev@lists.jboss.org) @author Trustin Lee (tlee@redhat.com) @version $Rev: 536 $, $Date: 2008-11-28 20:18:21 +0900 (Fri, 28 Nov 2008) $ @apiviz.landmark

    public synchronized void bind() throws Exception {
        if (started) throw new IllegalStateException("Server running already");


        if (port < 1) throw new RuntimeException("Please specify a port to which the server should get bound!");


        bootstrap = new ServerBootstrap(new NioServerSocketChannelFactory(createBossExecutor(), createWorkerExecutor(), ioWorker));
        ChannelPipelineFactory factory = createPipelineFactory(channels);
        
        // Configure the pipeline factory.
        bootstrap.setPipelineFactory(factory);

View Full Code Here


        ThreadFactory bossFactory = new NettyRenameThreadFactory(name() + "-boss");
        ThreadFactory workerFactory = new NettyRenameThreadFactory(name() + "-worker");
        
        if (maxWorkers > 0) {
            factory = new NioServerSocketChannelFactory(Executors.newCachedThreadPool(bossFactory), 
                Executors.newCachedThreadPool(workerFactory), maxWorkers);
        } else {
            factory = new NioServerSocketChannelFactory(Executors.newCachedThreadPool(bossFactory), 
                Executors.newCachedThreadPool(workerFactory));
        }
        
        LOG.info("Create Netty Server " + name() + ", buffer_size: " + buffer_size + ", maxWorkers: " + maxWorkers);

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  protected void init(DynMap config, Executor bossExecutor, Executor workerExecutor) {
     // Configure HTTP Ping server.
    
        this.bootstrap = new ServerBootstrap(
                new NioServerSocketChannelFactory(
                    bossExecutor,
                    workerExecutor));


        final DynMap cfg = config;
        // Set up the event pipeline factory.

View Full Code Here

  public void start() {
     // Configure the server(s).
    if (this.port != null) {
      
      ServerBootstrap  bootstrap = new ServerBootstrap(
                  new NioServerSocketChannelFactory(
                          this.bossExecutor,
                          this.workerExecutor));
          // Set up the event pipeline factory.
          bootstrap.setPipelineFactory(new StrestServerPipelineFactory(router, null));
      bootstrap.bind(new InetSocketAddress(this.port));
      this.bootstraps.add(bootstrap);
      System.out.println("Listening on port: " + this.port);
    }
    if (this.sslPort != null && this.sslContext != null) {
      
      ServerBootstrap  bootstrap = new ServerBootstrap(
                  new NioServerSocketChannelFactory(
                          this.bossExecutor,
                          this.workerExecutor));
          // Set up the event pipeline factory.
          bootstrap.setPipelineFactory(new StrestServerPipelineFactory(router, sslContext));
      bootstrap.bind(new InetSocketAddress(this.sslPort));

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        ExecutorService bossExecutor = context.getExecutorServiceStrategy().newThreadPool(this, "NettyTCPBoss",
                configuration.getCorePoolSize(), configuration.getMaxPoolSize());
        ExecutorService workerExecutor = context.getExecutorServiceStrategy().newThreadPool(this, "NettyTCPWorker",
                configuration.getCorePoolSize(), configuration.getMaxPoolSize());


        channelFactory = new NioServerSocketChannelFactory(bossExecutor, workerExecutor);
        serverBootstrap = new ServerBootstrap(channelFactory);
        if (configuration.getServerPipelineFactory() != null) {
            configuration.getServerPipelineFactory().setConsumer(this);
            serverBootstrap.setPipelineFactory(configuration.getServerPipelineFactory());
        } else {

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      .build();
    ThreadFactory workerFactory = new ThreadFactoryBuilder()
      .setNameFormat("ShuffleHandler Netty Worker #%d")
      .build();
    
    selector = new NioServerSocketChannelFactory(
        Executors.newCachedThreadPool(bossFactory),
        Executors.newCachedThreadPool(workerFactory));
    super.init(new Configuration(conf));
  }

View Full Code Here

  /**
   * Bind the network connection and start the network processing threads.
   */
  public void start() {
    // TODO provide tweakable options here for passing in custom executors.
    channelFactory = new NioServerSocketChannelFactory(Executors.newCachedThreadPool(), Executors
        .newCachedThreadPool());


    allChannels = new DefaultChannelGroup("jmemcachedChannelGroup");


    ServerBootstrap bootstrap = new ServerBootstrap(channelFactory);

View Full Code Here

  private ChannelFactory channelFactory;
  private CountDownLatch closed = new CountDownLatch(1);
  
  public NettyServer(Responder responder, InetSocketAddress addr) {
    this.responder = responder;
    channelFactory = new NioServerSocketChannelFactory(Executors
        .newCachedThreadPool(), Executors.newCachedThreadPool());
    ServerBootstrap bootstrap = new ServerBootstrap(channelFactory);
    bootstrap.setPipelineFactory(new ChannelPipelineFactory() {
      @Override
      public ChannelPipeline getPipeline() throws Exception {

View Full Code Here

                configuration.getCorePoolSize(), configuration.getMaxPoolSize());
        ExecutorService workerExecutor = context.getExecutorServiceStrategy().newThreadPool(this, "NettyTCPWorker",
                configuration.getCorePoolSize(), configuration.getMaxPoolSize());


        if (configuration.getWorkerCount() == 0) {
            channelFactory = new NioServerSocketChannelFactory(bossExecutor, workerExecutor);
        } else {
            channelFactory = new NioServerSocketChannelFactory(bossExecutor, workerExecutor,
                                                               configuration.getWorkerCount());
        }
        serverBootstrap = new ServerBootstrap(channelFactory);
        if (configuration.getServerPipelineFactory() != null) {
            configuration.getServerPipelineFactory().setConsumer(this);

View Full Code Here

          .build();
      ThreadFactory workerFactory = new ThreadFactoryBuilder()
          .setNameFormat("PullServerAuxService Netty Worker #%d")
          .build();


      selector = new NioServerSocketChannelFactory(
          Executors.newCachedThreadPool(bossFactory),
          Executors.newCachedThreadPool(workerFactory));


      localFS = new LocalFileSystem();
      super.init(new Configuration(conf));

View Full Code Here

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Examples of org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory

How threads work

Boss threads

Worker threads

Life cycle of threads and graceful shutdown

Related Classes of org.jboss.netty.channel.socket.nio.NioServerSocketChannelFactory