Example usage for io.netty.channel ChannelOption RCVBUF_ALLOCATOR

List of usage examples for io.netty.channel ChannelOption RCVBUF_ALLOCATOR

Introduction

In this page you can find the example usage for io.netty.channel ChannelOption RCVBUF_ALLOCATOR.

Prototype

ChannelOption RCVBUF_ALLOCATOR

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Usage

From source file:dorkbox.network.Server.java

License:Apache License

/**
 * Convenience method to starts a server with the specified Connection Options
 *//*from w  w  w.  ja v a 2  s  . c o m*/
@SuppressWarnings("AutoBoxing")
public Server(Configuration config) throws SecurityException {
    // watch-out for serialization... it can be NULL incoming. The EndPoint (superclass) sets it, if null, so
    // you have to make sure to use this.serialization
    super(config);

    tcpPort = config.tcpPort;
    udpPort = config.udpPort;

    localChannelName = config.localChannelName;

    if (config.host == null) {
        // we set this to "0.0.0.0" so that it is clear that we are trying to bind to that address.
        hostName = "0.0.0.0";

        // make it clear that this is what we do (configuration wise) so that variable examination is consistent
        config.host = hostName;
    } else {
        hostName = config.host;
    }

    if (localChannelName != null) {
        localBootstrap = new ServerBootstrap();
    } else {
        localBootstrap = null;
    }

    if (tcpPort > 0) {
        tcpBootstrap = new ServerBootstrap();
    } else {
        tcpBootstrap = null;
    }

    if (udpPort > 0) {
        // This is what allows us to have UDP behave "similar" to TCP, in that a session is established based on the port/ip of the
        // remote connection. This allows us to reuse channels and have "state" for a UDP connection that normally wouldn't exist.
        // Additionally, this is what responds to discovery broadcast packets
        udpBootstrap = new SessionBootstrap(tcpPort, udpPort);
    } else {
        udpBootstrap = null;
    }

    String threadName = Server.class.getSimpleName();

    // always use local channels on the server.
    if (localBootstrap != null) {
        localBootstrap
                .group(newEventLoop(LOCAL, 1, threadName + "-JVM-BOSS"), newEventLoop(LOCAL, 1, threadName))
                .channel(LocalServerChannel.class)
                .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .option(ChannelOption.WRITE_BUFFER_WATER_MARK,
                        new WriteBufferWaterMark(WRITE_BUFF_LOW, WRITE_BUFF_HIGH))
                .localAddress(new LocalAddress(localChannelName))
                .childHandler(new RegistrationLocalHandlerServer(threadName, registrationWrapper));
    }

    EventLoopGroup workerEventLoop = null;
    if (tcpBootstrap != null || udpBootstrap != null) {
        workerEventLoop = newEventLoop(config.workerThreadPoolSize, threadName);
    }

    if (tcpBootstrap != null) {
        if (OS.isAndroid()) {
            // android ONLY supports OIO (not NIO)
            tcpBootstrap.channel(OioServerSocketChannel.class);
        } else if (OS.isLinux() && NativeLibrary.isAvailable()) {
            // epoll network stack is MUCH faster (but only on linux)
            tcpBootstrap.channel(EpollServerSocketChannel.class);
        } else if (OS.isMacOsX() && NativeLibrary.isAvailable()) {
            // KQueue network stack is MUCH faster (but only on macosx)
            tcpBootstrap.channel(KQueueServerSocketChannel.class);
        } else {
            tcpBootstrap.channel(NioServerSocketChannel.class);
        }

        // TODO: If we use netty for an HTTP server,
        // Beside the usual ChannelOptions the Native Transport allows to enable TCP_CORK which may come in handy if you implement a HTTP Server.

        tcpBootstrap
                .group(newEventLoop(1, threadName + "-TCP-BOSS"),
                        newEventLoop(1, threadName + "-TCP-REGISTRATION"))
                .option(ChannelOption.SO_BACKLOG, backlogConnectionCount)
                .option(ChannelOption.SO_REUSEADDR, true)
                .option(ChannelOption.WRITE_BUFFER_WATER_MARK,
                        new WriteBufferWaterMark(WRITE_BUFF_LOW, WRITE_BUFF_HIGH))

                .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .childOption(ChannelOption.SO_KEEPALIVE, true)
                .childHandler(new RegistrationRemoteHandlerServerTCP(threadName, registrationWrapper,
                        workerEventLoop));

        // have to check options.host for "0.0.0.0". we don't bind to "0.0.0.0", we bind to "null" to get the "any" address!
        if (hostName.equals("0.0.0.0")) {
            tcpBootstrap.localAddress(tcpPort);
        } else {
            tcpBootstrap.localAddress(hostName, tcpPort);
        }

        // android screws up on this!!
        tcpBootstrap.option(ChannelOption.TCP_NODELAY, !OS.isAndroid()).childOption(ChannelOption.TCP_NODELAY,
                !OS.isAndroid());
    }

    if (udpBootstrap != null) {
        if (OS.isAndroid()) {
            // android ONLY supports OIO (not NIO)
            udpBootstrap.channel(OioDatagramChannel.class);
        } else if (OS.isLinux() && NativeLibrary.isAvailable()) {
            // epoll network stack is MUCH faster (but only on linux)
            udpBootstrap.channel(EpollDatagramChannel.class);
        } else if (OS.isMacOsX() && NativeLibrary.isAvailable()) {
            // KQueue network stack is MUCH faster (but only on macosx)
            udpBootstrap.channel(KQueueDatagramChannel.class);
        } else {
            // windows and linux/mac that are incompatible with the native implementations
            udpBootstrap.channel(NioDatagramChannel.class);
        }

        // Netty4 has a default of 2048 bytes as upper limit for datagram packets, we want this to be whatever we specify
        FixedRecvByteBufAllocator recvByteBufAllocator = new FixedRecvByteBufAllocator(EndPoint.udpMaxSize);

        udpBootstrap
                .group(newEventLoop(1, threadName + "-UDP-BOSS"),
                        newEventLoop(1, threadName + "-UDP-REGISTRATION"))
                .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .option(ChannelOption.RCVBUF_ALLOCATOR, recvByteBufAllocator)
                .option(ChannelOption.WRITE_BUFFER_WATER_MARK,
                        new WriteBufferWaterMark(WRITE_BUFF_LOW, WRITE_BUFF_HIGH))

                // a non-root user can't receive a broadcast packet on *nix if the socket is bound on non-wildcard address.
                // TODO: move broadcast to it's own handler, and have UDP server be able to be bound to a specific IP
                // OF NOTE: At the end in my case I decided to bind to .255 broadcast address on Linux systems. (to receive broadcast packets)
                .localAddress(udpPort) // if you bind to a specific interface, Linux will be unable to receive broadcast packets! see: http://developerweb.net/viewtopic.php?id=5722
                .childHandler(new RegistrationRemoteHandlerServerUDP(threadName, registrationWrapper,
                        workerEventLoop));

        // // have to check options.host for null. we don't bind to 0.0.0.0, we bind to "null" to get the "any" address!
        // if (hostName.equals("0.0.0.0")) {
        //     udpBootstrap.localAddress(hostName, tcpPort);
        // }
        // else {
        //     udpBootstrap.localAddress(udpPort);
        // }

        // Enable to READ from MULTICAST data (ie, 192.168.1.0)
        // in order to WRITE: write as normal, just make sure it ends in .255
        // in order to LISTEN:
        //    InetAddress group = InetAddress.getByName("203.0.113.0");
        //    socket.joinGroup(group);
        // THEN once done
        //    socket.leaveGroup(group), close the socket
        // Enable to WRITE to MULTICAST data (ie, 192.168.1.0)
        udpBootstrap.option(ChannelOption.SO_BROADCAST, false).option(ChannelOption.SO_SNDBUF, udpMaxSize);
    }
}

From source file:eu.stratosphere.runtime.io.network.netty.NettyConnectionManager.java

License:Apache License

public NettyConnectionManager(ChannelManager channelManager, InetAddress bindAddress, int bindPort,
        int bufferSize, int numInThreads, int numOutThreads, int lowWaterMark, int highWaterMark) {
    this.outConnections = new ConcurrentHashMap<RemoteReceiver, Object>();
    this.channelManager = channelManager;

    // --------------------------------------------------------------------

    int defaultNumThreads = Math.max(Runtime.getRuntime().availableProcessors() / 4, 1);
    numInThreads = (numInThreads == -1) ? defaultNumThreads : numInThreads;
    numOutThreads = (numOutThreads == -1) ? defaultNumThreads : numOutThreads;
    LOG.info(String.format("Starting with %d incoming and %d outgoing connection threads.", numInThreads,
            numOutThreads));//from  w  w  w .ja v  a 2 s. com

    lowWaterMark = (lowWaterMark == -1) ? bufferSize / 2 : lowWaterMark;
    highWaterMark = (highWaterMark == -1) ? bufferSize : highWaterMark;
    LOG.info(String.format("Setting low water mark to %d and high water mark to %d bytes.", lowWaterMark,
            highWaterMark));

    // --------------------------------------------------------------------
    // server bootstrap (incoming connections)
    // --------------------------------------------------------------------
    this.in = new ServerBootstrap();
    this.in.group(new NioEventLoopGroup(numInThreads)).channel(NioServerSocketChannel.class)
            .localAddress(bindAddress, bindPort).childHandler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel channel) throws Exception {
                    channel.pipeline()
                            .addLast(new InboundEnvelopeDecoder(NettyConnectionManager.this.channelManager))
                            .addLast(new InboundEnvelopeDispatcherHandler(
                                    NettyConnectionManager.this.channelManager));
                }
            }).option(ChannelOption.RCVBUF_ALLOCATOR, new FixedRecvByteBufAllocator(bufferSize))
            .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);

    // --------------------------------------------------------------------
    // client bootstrap (outgoing connections)
    // --------------------------------------------------------------------
    this.out = new Bootstrap();
    this.out.group(new NioEventLoopGroup(numOutThreads)).channel(NioSocketChannel.class)
            .handler(new ChannelInitializer<SocketChannel>() {
                @Override
                public void initChannel(SocketChannel channel) throws Exception {
                    channel.pipeline().addLast(new OutboundEnvelopeEncoder());
                }
            }).option(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, lowWaterMark)
            .option(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, highWaterMark)
            .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
            .option(ChannelOption.TCP_NODELAY, false).option(ChannelOption.SO_KEEPALIVE, true);

    try {
        this.in.bind().sync();
    } catch (InterruptedException e) {
        throw new RuntimeException("Could not bind server socket for incoming connections.");
    }

    if (LOG.isDebugEnabled()) {
        new Thread(new Runnable() {
            @Override
            public void run() {
                Date date = new Date();

                while (true) {
                    try {
                        Thread.sleep(DEBUG_PRINT_QUEUED_ENVELOPES_EVERY_MS);

                        date.setTime(System.currentTimeMillis());
                        System.out.println(date);

                        System.out.println(getNonZeroNumQueuedEnvelopes());

                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                }
            }
        }).start();
    }
}

From source file:eu.xworlds.util.raknet.RaknetServer.java

License:Open Source License

/**
 * Hidden constructor./*from w  w w  .j ava  2  s.  c  o  m*/
 * 
 * @param addresses
 *            the addresses to bind to.
 * @param serverListeners
 *            the listeners.
 * @param recvBuffer
 *            the recv buffer size.
 * @param sendBuffer
 *            the send buffer size.
 * @param sGroup
 *            the sender nio group.
 * @param rGroup
 *            the receiver nio group.
 * @param sessionReadTimeout
 *            the raknet session read timeout in milliseconds
 * @param pFactories
 *            the factories to create additional raknet pipeline handlers
 * @param hFactories
 *            the factories to register additional raknet message handlers
 * @param mFactories
 *            the factories to register additional raknet message classes
 */
RaknetServer(InetSocketAddress[] addresses, RaknetServerListener[] serverListeners, int recvBuffer,
        int sendBuffer, NioEventLoopGroup sGroup, NioEventLoopGroup rGroup, int sessionReadTimeout,
        RaknetPipelineFactory[] pFactories, RaknetMessageFactory[] mFactories,
        RaknetHandlerFactory[] hFactories) {
    // this.addresses = addresses;
    this.serverListeners = serverListeners;
    this.recvBuffer = recvBuffer;
    this.sendBuffer = sendBuffer;
    this.senderGroup = sGroup;
    this.receiverGroup = rGroup;

    this.pipelineFactories = pFactories;
    this.handlerFactories = hFactories;
    this.messageFactories = mFactories;

    this.sessions = CacheBuilder.newBuilder().maximumSize(1000). // TODO read from builder
            expireAfterAccess(sessionReadTimeout, TimeUnit.MILLISECONDS)
            .removalListener(new SessionRemovalListener()).build(new SessionCacheLoader());

    final Bootstrap b = new Bootstrap();
    b.group(this.receiverGroup).channel(NioDatagramChannel.class)
            .option(ChannelOption.SO_REUSEADDR, Boolean.TRUE)
            .option(ChannelOption.SO_RCVBUF, Integer.valueOf(this.recvBuffer))
            .option(ChannelOption.SO_SNDBUF, Integer.valueOf(this.sendBuffer))
            .option(ChannelOption.RCVBUF_ALLOCATOR, new FixedRecvByteBufAllocator(this.recvBuffer))
            .handler(new RaknetInitializer());

    for (final InetSocketAddress address : addresses) {
        this.listenFutures.add(b.bind(address).addListener(new BindListener()));
    }
}

From source file:io.advantageous.conekt.http.impl.HttpClientImpl.java

License:Open Source License

private void applyConnectionOptions(Bootstrap bootstrap) {
    bootstrap.option(ChannelOption.TCP_NODELAY, options.isTcpNoDelay());
    if (options.getSendBufferSize() != -1) {
        bootstrap.option(ChannelOption.SO_SNDBUF, options.getSendBufferSize());
    }//  www . j  a va 2s  .c o  m
    if (options.getReceiveBufferSize() != -1) {
        bootstrap.option(ChannelOption.SO_RCVBUF, options.getReceiveBufferSize());
        bootstrap.option(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }
    if (options.getSoLinger() != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, options.getSoLinger());
    }
    if (options.getTrafficClass() != -1) {
        bootstrap.option(ChannelOption.IP_TOS, options.getTrafficClass());
    }
    bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, options.getConnectTimeout());
    bootstrap.option(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);
    bootstrap.option(ChannelOption.SO_KEEPALIVE, options.isTcpKeepAlive());
    bootstrap.option(ChannelOption.SO_REUSEADDR, options.isReuseAddress());
}

From source file:io.advantageous.conekt.http.impl.HttpServerImpl.java

License:Open Source License

private void applyConnectionOptions(ServerBootstrap bootstrap) {
    bootstrap.childOption(ChannelOption.TCP_NODELAY, options.isTcpNoDelay());
    if (options.getSendBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, options.getSendBufferSize());
    }//ww  w .  j a va2  s. com
    if (options.getReceiveBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_RCVBUF, options.getReceiveBufferSize());
        bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }

    if (options.getSoLinger() != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, options.getSoLinger());
    }
    if (options.getTrafficClass() != -1) {
        bootstrap.childOption(ChannelOption.IP_TOS, options.getTrafficClass());
    }
    bootstrap.childOption(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);

    bootstrap.childOption(ChannelOption.SO_KEEPALIVE, options.isTcpKeepAlive());

    bootstrap.option(ChannelOption.SO_REUSEADDR, options.isReuseAddress());
    if (options.getAcceptBacklog() != -1) {
        bootstrap.option(ChannelOption.SO_BACKLOG, options.getAcceptBacklog());
    }
}

From source file:io.advantageous.conekt.net.impl.NetClientImpl.java

License:Open Source License

private void applyConnectionOptions(Bootstrap bootstrap) {
    bootstrap.option(ChannelOption.TCP_NODELAY, options.isTcpNoDelay());
    if (options.getSendBufferSize() != -1) {
        bootstrap.option(ChannelOption.SO_SNDBUF, options.getSendBufferSize());
    }//from w w w .  j  av a 2  s  .com
    if (options.getReceiveBufferSize() != -1) {
        bootstrap.option(ChannelOption.SO_RCVBUF, options.getReceiveBufferSize());
        bootstrap.option(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }
    if (options.getSoLinger() != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, options.getSoLinger());
    }
    if (options.getTrafficClass() != -1) {
        bootstrap.option(ChannelOption.IP_TOS, options.getTrafficClass());
    }
    bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, options.getConnectTimeout());
    bootstrap.option(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);
    bootstrap.option(ChannelOption.SO_KEEPALIVE, options.isTcpKeepAlive());
}

From source file:io.advantageous.conekt.net.impl.NetServerImpl.java

License:Open Source License

private void applyConnectionOptions(ServerBootstrap bootstrap) {
    bootstrap.childOption(ChannelOption.TCP_NODELAY, options.isTcpNoDelay());
    if (options.getSendBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, options.getSendBufferSize());
    }/*from   w w w.j a va 2  s  . com*/
    if (options.getReceiveBufferSize() != -1) {
        bootstrap.childOption(ChannelOption.SO_RCVBUF, options.getReceiveBufferSize());
        bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(options.getReceiveBufferSize()));
    }
    if (options.getSoLinger() != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, options.getSoLinger());
    }
    if (options.getTrafficClass() != -1) {
        bootstrap.childOption(ChannelOption.IP_TOS, options.getTrafficClass());
    }
    bootstrap.childOption(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);

    bootstrap.childOption(ChannelOption.SO_KEEPALIVE, options.isTcpKeepAlive());
    bootstrap.option(ChannelOption.SO_REUSEADDR, options.isReuseAddress());
    if (options.getAcceptBacklog() != -1) {
        bootstrap.option(ChannelOption.SO_BACKLOG, options.getAcceptBacklog());
    }
}

From source file:io.jsync.net.impl.TCPSSLHelper.java

License:Open Source License

public void applyConnectionOptions(ServerBootstrap bootstrap) {
    bootstrap.childOption(ChannelOption.TCP_NODELAY, tcpNoDelay);
    if (tcpSendBufferSize != -1) {
        bootstrap.childOption(ChannelOption.SO_SNDBUF, tcpSendBufferSize);
    }/* ww  w . j a va 2  s. co m*/
    if (tcpReceiveBufferSize != -1) {
        bootstrap.childOption(ChannelOption.SO_RCVBUF, tcpReceiveBufferSize);
        bootstrap.childOption(ChannelOption.RCVBUF_ALLOCATOR,
                new FixedRecvByteBufAllocator(tcpReceiveBufferSize));
    }

    // TODO this may not be needed
    if (soLinger != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, soLinger);
    }
    if (trafficClass != -1) {
        bootstrap.childOption(ChannelOption.IP_TOS, trafficClass);
    }
    bootstrap.childOption(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);

    bootstrap.childOption(ChannelOption.SO_KEEPALIVE, tcpKeepAlive);
    bootstrap.option(ChannelOption.SO_REUSEADDR, reuseAddress);
    bootstrap.option(ChannelOption.SO_BACKLOG, acceptBackLog);
}

From source file:io.jsync.net.impl.TCPSSLHelper.java

License:Open Source License

public void applyConnectionOptions(Bootstrap bootstrap) {
    bootstrap.option(ChannelOption.TCP_NODELAY, tcpNoDelay);
    if (tcpSendBufferSize != -1) {
        bootstrap.option(ChannelOption.SO_SNDBUF, tcpSendBufferSize);
    }//w  ww  .  j a v a2s .c om
    if (tcpReceiveBufferSize != -1) {
        bootstrap.option(ChannelOption.SO_RCVBUF, tcpReceiveBufferSize);
        bootstrap.option(ChannelOption.RCVBUF_ALLOCATOR, new FixedRecvByteBufAllocator(tcpReceiveBufferSize));
    }

    if (soLinger != -1) {
        bootstrap.option(ChannelOption.SO_LINGER, soLinger);
    }
    if (trafficClass != -1) {
        bootstrap.option(ChannelOption.IP_TOS, trafficClass);
    }
    bootstrap.option(ChannelOption.CONNECT_TIMEOUT_MILLIS, connectTimeout);
    bootstrap.option(ChannelOption.ALLOCATOR, PartialPooledByteBufAllocator.INSTANCE);
    bootstrap.option(ChannelOption.SO_KEEPALIVE, tcpKeepAlive);
}

From source file:io.maelstorm.server.ServerInit.java

License:Open Source License

public void start(String configFile, RequestHandler handler) throws Exception {
    LOG.info("Starting.");
    AppendableCharSequenceAddon.configure();
    try {//ww  w  .  ja va2  s  . c  om
        System.in.close(); // Release a FD we don't need.
    } catch (Exception e) {
        LOG.warn("Failed to close stdin", e);
    }
    Properties prop = getProperties(configFile);
    requestDistributor = handler;
    requestDistributor.setInitializer(this);
    String os = System.getProperty("os.name").toLowerCase(Locale.UK).trim();
    if (os.startsWith("linux")) {
        bossGroup = (null == bossGroup) ? new EpollEventLoopGroup(1) : bossGroup;
        workerGroup = (null == workerGroup) ? new EpollEventLoopGroup(NUM_WORKER_THREADS) : workerGroup;
    } else {
        bossGroup = (null == bossGroup) ? new NioEventLoopGroup(1) : bossGroup;
        workerGroup = (null == workerGroup) ? new NioEventLoopGroup(NUM_WORKER_THREADS) : workerGroup;
    }

    String[] servers = prop.getProperty("servers").split(",");
    for (String server : servers) {

        try {
            controller = new ServerBootstrap();
            controller.group(bossGroup, workerGroup);
            if (os.startsWith("linux")) {
                controller.channel(EpollServerSocketChannel.class);
                controller.option(EpollChannelOption.TCP_CORK, true);
            } else {
                controller.channel(NioServerSocketChannel.class);
            }
            controller.childHandler(new PipelineFactory(handler, getPipelineConfig(prop, server)));
            controller.option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
            controller.option(ChannelOption.RCVBUF_ALLOCATOR, AdaptiveRecvByteBufAllocator.DEFAULT);
            controller.option(ChannelOption.CONNECT_TIMEOUT_MILLIS,
                    getInt(prop, server, "connectTimeoutMillis"));
            controller.option(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, 64 * 1024);
            controller.option(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, 1 * 1024);
            controller.option(ChannelOption.SO_KEEPALIVE, getBoolean(prop, server, "SOKeepalive"));
            controller.option(ChannelOption.SO_REUSEADDR, true);
            controller.option(ChannelOption.TCP_NODELAY, true);
            controller.option(ChannelOption.SO_LINGER, 0);
            controller.childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT);
            controller.childOption(ChannelOption.WRITE_BUFFER_HIGH_WATER_MARK, 64 * 1024);
            controller.childOption(ChannelOption.WRITE_BUFFER_LOW_WATER_MARK, 10);
            controller.childOption(ChannelOption.SO_KEEPALIVE, true);
            controller.childOption(ChannelOption.SO_REUSEADDR, true);
            controller.childOption(ChannelOption.TCP_NODELAY, true);
            controller.childOption(ChannelOption.SO_LINGER, 0);
            controller.childOption(ChannelOption.SO_RCVBUF, 6291456);

            final InetSocketAddress addr = new InetSocketAddress(getInt(prop, server, "port"));
            ChannelFuture future = controller.bind(addr).sync();
            if (future.isSuccess())
                LOG.info("Server Ready to serve on " + addr);
            else
                throw new Exception("Address already in use");
        } catch (Throwable t) {
            bossGroup.shutdownGracefully();
            workerGroup.shutdownGracefully();
            throw new RuntimeException("Initialization failed", t);
        }
    }
}