Example usage for io.netty.channel ChannelOption SO_BACKLOG

Introduction

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

Prototype

ChannelOption SO_BACKLOG

To view the source code for io.netty.channel ChannelOption SO_BACKLOG.

Click Source Link

Usage

From source file:dbseer.middleware.server.MiddlewareServer.java

License:Apache License

public void run() throws Exception {
    // basic log info.
    Log.info(String.format("Listening port = %d", port));
    Log.info(String.format("DB log dir = %s", dbLogPath));
    Log.info(String.format("System log dir = %s", sysLogPath));

    // print server info.
    for (Server s : servers.values()) {
        s.printLogInfo();//w  w w  . ja v a2  s .  co m
        // test MySQL/MariaDB connection using JDBC before we start anything.
        if (!s.testConnection()) {
            throw new Exception("Unable to connect to the MySQL server with the given credential.");
        } else if (!s.testMonitoringDir()) {
            throw new Exception("Specified monitoring directory and script do not exist.");
        }
    }

    // open named pipe.
    File checkPipeFile = new File(this.namedPipePath);
    if (checkPipeFile == null || !checkPipeFile.exists() || checkPipeFile.isDirectory()) {
        throw new Exception("Cannot open the named pipe for communication with dbseerroute. "
                + "You must run Maxscale with dbseerroute with correct named pipe first.");
    }

    namedPipeFile = new RandomAccessFile(this.namedPipePath, "rwd");
    if (namedPipeFile == null) {
        throw new Exception("Cannot open the named pipe for communication with dbseerroute. "
                + "You must run Maxscale with dbseerroute with correct named pipe first.");
    }

    // attach shutdown hook.
    MiddlewareServerShutdown shutdownThread = new MiddlewareServerShutdown(this);
    Runtime.getRuntime().addShutdownHook(shutdownThread);

    // let's start accepting connections.
    EventLoopGroup bossGroup = new NioEventLoopGroup(1);
    EventLoopGroup workerGroup = new NioEventLoopGroup(4);

    final MiddlewareServer server = this;
    try {
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 128)
                .option(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .childOption(ChannelOption.ALLOCATOR, PooledByteBufAllocator.DEFAULT)
                .childOption(ChannelOption.SO_KEEPALIVE, true)
                .handler(new MiddlewareServerConnectionHandler(server))
                .childHandler(new ChannelInitializer<SocketChannel>() {
                    @Override
                    protected void initChannel(SocketChannel ch) throws Exception {
                        ChannelPipeline p = ch.pipeline();
                        p.addLast(new IdleStateHandler(10, 0, 0));
                        p.addLast(ZlibCodecFactory.newZlibEncoder(ZlibWrapper.ZLIB));
                        p.addLast(ZlibCodecFactory.newZlibDecoder(ZlibWrapper.ZLIB));
                        p.addLast(new MiddlewarePacketDecoder());
                        p.addLast(new MiddlewarePacketEncoder());
                        p.addLast(new MiddlewareServerHandler(server));
                        //                     p.addLast(new MiddlewarePacketDecoder(), new MiddlewareServerHandler(server));
                    }
                });

        Log.info("Middleware is now accepting connections.");

        // bind and start accepting connections.
        ChannelFuture cf = b.bind(port).sync();

        // shutdown the server.
        if (cf != null) {
            cf.channel().closeFuture().sync();
        }
    } catch (Exception e) {
        Log.error(e.getMessage());
    } finally {
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
        if (tailerExecutor != null && !tailerExecutor.isShutdown()) {
            tailerExecutor.shutdown();
        }
    }
}

---

From source file:de.jackwhite20.apex.tcp.ApexSocket.java

License:Open Source License

@Override
public Channel bootstrap(EventLoopGroup bossGroup, EventLoopGroup workerGroup, String ip, int port, int backlog,
        int readTimeout, int writeTimeout) throws Exception {

    logger.info("Bootstrapping socket server");

    ServerBootstrap bootstrap = new ServerBootstrap().group(bossGroup, workerGroup)
            .channel(PipelineUtils.getServerChannel())
            .childHandler(new ApexSocketChannelInitializer(readTimeout, writeTimeout))
            .childOption(ChannelOption.AUTO_READ, false);

    if (PipelineUtils.isEpoll()) {
        bootstrap.childOption(EpollChannelOption.EPOLL_MODE, EpollMode.LEVEL_TRIGGERED);

        logger.debug("Epoll mode is now level triggered");
    }/* w  w w  .  java 2  s .  c o  m*/

    return bootstrap.option(ChannelOption.TCP_NODELAY, true).option(ChannelOption.SO_BACKLOG, backlog)
            .bind(ip, port).sync().channel();
}

---

From source file:de.jackwhite20.cascade.server.impl.CascadeServer.java

License:Open Source License

@Override
public void start() {

    bossGroup = new NioEventLoopGroup();
    workerGroup = PipelineUtils.newEventLoopGroup(serverConfig.workerThreads(),
            new CascadeThreadFactory("Server"));

    try {/*w  ww  . j a  v a  2s .co m*/
        ServerBootstrap b = new ServerBootstrap();
        serverChannel = b.group(bossGroup, workerGroup).channel(PipelineUtils.getServerChannel())
                .childHandler(new CascadeChannelInitializer(serverConfig.protocol(),
                        serverConfig.sessionListener().stream().collect(Collectors.toList())))
                .option(ChannelOption.TCP_NODELAY, true).option(ChannelOption.SO_BACKLOG, 200)
                .bind(serverConfig.host(), serverConfig.port()).sync().channel();

        serverConfig.sessionListener().forEach(SessionListener::onStarted);
    } catch (Exception e) {
        e.printStackTrace();
    }
}

---

From source file:de.jackwhite20.comix.Comix.java

License:Open Source License

public void start() {
    System.setProperty("java.net.preferIPv4Stack", "true");

    ResourceLeakDetector.setLevel(ResourceLeakDetector.Level.DISABLED);

    AnsiConsole.systemInstall();//from   w  w  w  . ja v  a2s.c  o  m

    LogManager.getLogManager().reset();

    logger = new ComixLogger(consoleReader);

    logger.log(Level.INFO, "Comix", "------ Comix v.0.1 ------");

    loadConfig();

    logger.log(Level.INFO, "Load-Balancer", (targets.size() > 0) ? "Targets:" : "No Target Servers found!");
    targets.forEach(t -> logger.log(Level.INFO, "Load-Balancer",
            t.getName() + " - " + t.getHost() + ":" + t.getPort()));

    logger.log(Level.INFO, "Commands", "Registering commands...");

    registerCommands();

    logger.log(Level.INFO, "Comix", "Starting Comix on " + balancerHost + ":" + balancerPort + "...");

    balancingStrategy = new RoundRobinBalancingStrategy(targets);

    new Timer("CheckTargets").scheduleAtFixedRate(new CheckTargets(balancingStrategy), 0,
            TimeUnit.SECONDS.toMillis(comixConfig.getCheckTime()));

    bossGroup = new NioEventLoopGroup(1);
    workerGroup = new NioEventLoopGroup(comixConfig.getThreads());

    try {
        ServerBootstrap bootstrap = new ServerBootstrap();
        bootstrap.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.TCP_NODELAY, true)
                .option(ChannelOption.SO_BACKLOG, comixConfig.getBacklog())
                .option(ChannelOption.SO_REUSEADDR, true).childOption(ChannelOption.TCP_NODELAY, true)
                .childOption(ChannelOption.AUTO_READ, false).childOption(ChannelOption.SO_TIMEOUT, 4000)
                .childHandler(new ComixChannelInitializer());

        ChannelFuture f = bootstrap.bind(comixConfig.getPort()).sync();

        reload();

        logger.log(Level.INFO, "Comix", "Comix is started!");

        f.channel().closeFuture().sync();

        running = false;
    } catch (Exception e) {
        e.printStackTrace();
    } finally {
        shutdown();
    }
}

---

From source file:de.jackwhite20.japs.server.JaPSServer.java

License:Open Source License

private void start() {

    if (PipelineUtils.isEpoll()) {
        LOGGER.info("Using high performance epoll event notification mechanism");
    } else {/* w  w  w.j  a v a 2  s .  com*/
        LOGGER.info("Using normal select/poll event notification mechanism");
    }

    bossGroup = PipelineUtils.newEventLoopGroup(1);
    workerGroup = PipelineUtils.newEventLoopGroup(workerThreads);

    try {
        ServerBootstrap serverBootstrap = new ServerBootstrap();
        serverChannel = serverBootstrap.group(bossGroup, workerGroup).channel(PipelineUtils.getServerChannel())
                .childHandler(new ServerChannelInitializer(this)).option(ChannelOption.TCP_NODELAY, true)
                .option(ChannelOption.SO_BACKLOG, backlog).bind(new InetSocketAddress(host, port)).sync()
                .channel();
    } catch (InterruptedException e) {
        e.printStackTrace();
    }

    LOGGER.log(Level.INFO, "JaPS server started on {0}:{1}", new Object[] { host, String.valueOf(port) });
}

---

From source file:de.jpaw.bonaparte.netty.testServer.SslServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    ServerBootstrap b = new ServerBootstrap();
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from w  w w.j  av  a 2 s  .  co  m*/
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).localAddress(new InetSocketAddress(port))
                .childOption(ChannelOption.TCP_NODELAY, true).handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new BonaparteNettySslPipelineFactory(1000, new TestServerHandler(), useSsl, false,
                        requirePeerAuthentication, null));

        // Start the server.
        ChannelFuture f = b.bind().sync();

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:de.jpaw.bonaparte.netty.testServer.TestServer.java

License:Apache License

public void run() throws Exception {
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup(3);
    EventLoopGroup workerGroup = new NioEventLoopGroup(6);
    try {//from w ww  .j  a  v  a  2  s  . c o  m
        ServerBootstrap b = new ServerBootstrap();
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .option(ChannelOption.SO_BACKLOG, 100).localAddress(new InetSocketAddress(port))
                .childOption(ChannelOption.TCP_NODELAY, true).childOption(ChannelOption.SO_KEEPALIVE, true)
                .handler(new LoggingHandler(LogLevel.INFO))
                .childHandler(new BonaparteNettyPipelineFactory(1000, new TestServerHandler(), null, 1));

        // Start the server.
        ChannelFuture f = b.bind().sync();

        // Wait until the server socket is closed.
        f.channel().closeFuture().sync();
    } catch (Exception e) {
        System.out.println("Exception " + e + " occured");
    } finally {
        // Shut down all event loops to terminate all threads.
        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:de.mxro.thrd.netty4.tests.http.HttpHelloWorldServer.java

License:Apache License

public Future<Void> run() throws Exception {
    // Configure the server.
    EventLoopGroup bossGroup = new NioEventLoopGroup();
    EventLoopGroup workerGroup = new NioEventLoopGroup();
    try {/*from w  ww  .java  2 s  .  c o m*/
        ServerBootstrap b = new ServerBootstrap();
        b.option(ChannelOption.SO_BACKLOG, 1024);
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class)
                .childHandler(new HttpHelloWorldServerInitializer());

        Channel ch = b.bind(port).sync().channel();

        return ch.closeFuture();
        // ch.closeFuture().sync();
    } finally {

        bossGroup.shutdownGracefully();
        workerGroup.shutdownGracefully();
    }
}

---

From source file:de.xatc.server.nettybootstrap.atc.ATCServerBootstrap.java

public void initServer() throws java.net.BindException {

    bossGroup = new NioEventLoopGroup();
    workerGroup = new NioEventLoopGroup();

    try {/* w  w w .jav  a2s .  c  o  m*/
        ServerBootstrap b = new ServerBootstrap(); // (2)
        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class) // (3)
                .childHandler(new ChannelInitializer<SocketChannel>() { // (4)
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ObjectEncoder());
                        ch.pipeline().addLast(new ObjectDecoder(ClassResolvers.cacheDisabled(null)));
                        ch.pipeline().addLast(new ATCServerHandler());
                    }
                }).option(ChannelOption.SO_BACKLOG, ServerConfig.getMaxConnectionsAllowed()) // (5)
                .childOption(ChannelOption.SO_KEEPALIVE, ServerConfig.isKeepConnectionsAlive()); // (6)

        LOG.info("Listening for Data on " + ServerConfig.getAtcIP() + ":" + ServerConfig.getAtcPort());
        channelFuture = b.bind(ServerConfig.getAtcIP(), ServerConfig.getAtcPort()).sync(); // (7)

    } catch (InterruptedException ex) {
        LOG.error(ex.getLocalizedMessage());
        ex.printStackTrace(System.err);
    } catch (Exception ex) {
        System.err.println("Exceptoin detected. Exit");
        System.exit(-1);
    }

}

---

From source file:de.xatc.server.nettybootstrap.pilot.DataServerBootstrap.java

public void initServer() {

    bossGroup = new NioEventLoopGroup();
    workerGroup = new NioEventLoopGroup();
    try {//from  w ww. j a v  a2 s.  c o m
        ServerBootstrap b = new ServerBootstrap(); // (2)

        b.group(bossGroup, workerGroup).channel(NioServerSocketChannel.class) // (3)
                .childHandler(new ChannelInitializer<SocketChannel>() { // (4)
                    @Override
                    public void initChannel(SocketChannel ch) throws Exception {
                        ch.pipeline().addLast(new ObjectEncoder());
                        ch.pipeline().addLast(new ObjectDecoder(ClassResolvers.cacheDisabled(null)));
                        ch.pipeline().addLast(new DataServerHandler());

                    }
                }).option(ChannelOption.SO_BACKLOG, ServerConfig.getMaxConnectionsAllowed()) // (5)
                .childOption(ChannelOption.SO_KEEPALIVE, ServerConfig.isKeepConnectionsAlive()); // (6)

        LOG.info("Listening for Data on " + ServerConfig.getDataIP() + ":" + ServerConfig.getDataPort());
        channelFuture = b.bind(ServerConfig.getDataIP(), ServerConfig.getDataPort()).sync(); // (7)

    } catch (InterruptedException ex) {
        LOG.error(ex.getLocalizedMessage());
        ex.printStackTrace(System.err);
    } catch (Exception ex) {
        System.err.println(" exception caught. Could not startup. Exiting" + ex.getLocalizedMessage());
        System.exit(-1);
    }

}

---

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