/** Stop the network manager, closing all connections and cleaning up all resources. */
public void stop() {
started.set(false);
logger.info("Network manager stopping!");
ChannelGroupFuture future = allChannels.close();
future.awaitUninterruptibly();
channelFactory.releaseExternalResources();
}
public static void shutdownChannelFactory(
ChannelFactory channelFactory,
ExecutorService bossExecutor,
ExecutorService workerExecutor,
ChannelGroup allChannels) {
// Close all channels
if (allChannels != null) {
closeChannels(allChannels);
}
// Shutdown the channel factory
if (channelFactory != null) {
channelFactory.shutdown();
}
// Stop boss threads
if (bossExecutor != null) {
shutdownExecutor(bossExecutor, "bossExecutor");
}
// Finally stop I/O workers
if (workerExecutor != null) {
shutdownExecutor(workerExecutor, "workerExecutor");
}
// Release any other resources netty might be holding onto via this channelFactory
if (channelFactory != null) {
channelFactory.releaseExternalResources();
}
}
/** close all channels, and release resources */
public synchronized void close() {
if (allChannels != null) {
allChannels.close().awaitUninterruptibly();
factory.releaseExternalResources();
allChannels = null;
}
}
public static void main(String[] args) throws Exception {
String host = "localhost";
int port = Integer.parseInt("8080");
ChannelFactory factory =
new NioClientSocketChannelFactory(
Executors.newCachedThreadPool(), Executors.newCachedThreadPool());
ClientBootstrap bootstrap = new ClientBootstrap(factory);
bootstrap.setPipelineFactory(
new ChannelPipelineFactory() {
public ChannelPipeline getPipeline() {
return Channels.pipeline(new TimeDecoder(), new TimeClientHandler());
}
});
bootstrap.setOption("tcpNoDelay", true);
bootstrap.setOption("keepAlive", true);
ChannelFuture future = bootstrap.connect(new InetSocketAddress(host, port));
future.awaitUninterruptibly();
if (!future.isSuccess()) {
future.getCause().printStackTrace();
}
future.getChannel().getCloseFuture().awaitUninterruptibly();
factory.releaseExternalResources();
}
private static final void unrefChannelFactory() {
synchronized (channelFactoryRefs) {
if (channelFactoryRefs.decrementAndGet() == 0) {
channelFactory.releaseExternalResources();
channelFactory = null;
}
}
}
public void stop() {
try {
myScheduler.shutdown();
myBuildsExecutor.shutdown();
final ChannelGroupFuture closeFuture = myAllOpenChannels.close();
closeFuture.awaitUninterruptibly();
} finally {
myChannelFactory.releaseExternalResources();
}
}
public static void shutdown() {
if (serverSocketChannelFactory != null) {
serverSocketChannelFactory.releaseExternalResources();
}
}
@Override
public void run() {
Configuration conf = OmidConfiguration.create();
// *** Start the Netty configuration ***
// Start server with Nb of active threads = 2*NB CPU + 1 as maximum.
// int maxSocketThreads = conf.getInt("tso.maxsocketthread",
// (Runtime.getRuntime().availableProcessors() * 2 + 1) * 2);
// more worder threads has an inverse impact on performance, unless the one is saturated
int maxSocketThreads = conf.getInt("tso.maxsocketthread", 1);
ChannelFactory factory =
new NioServerSocketChannelFactory(
Executors.newCachedThreadPool(), Executors.newCachedThreadPool(), maxSocketThreads);
ServerBootstrap bootstrap = new ServerBootstrap(factory);
// Create the global ChannelGroup
ChannelGroup channelGroup = new DefaultChannelGroup(TSOServer.class.getName());
// threads max
// int maxThreads = Runtime.getRuntime().availableProcessors() *2 + 1;
// More concurrency gives lower performance due to synchronizations
int maxThreads = conf.getInt("tso.maxthread", 4);
System.out.println("maxThreads: " + maxThreads);
// int maxThreads = 5;
// Memory limitation: 1MB by channel, 1GB global, 100 ms of timeout
ThreadPoolExecutor pipelineExecutor =
new OrderedMemoryAwareThreadPoolExecutor(
maxThreads,
1048576,
1073741824,
100,
TimeUnit.MILLISECONDS,
Executors.defaultThreadFactory());
// This is the only object of timestamp oracle
// TODO: make it singleton
// TimestampOracle timestampOracle = new TimestampOracle();
// The wrapper for the shared state of TSO
state = BookKeeperStateBuilder.getState(this.config);
if (state == null) {
LOG.error("Couldn't build state");
return;
}
TSOState.BATCH_SIZE = config.getBatchSize();
System.out.println("PARAM MAX_ITEMS: " + TSOState.MAX_ITEMS);
System.out.println("PARAM BATCH_SIZE: " + TSOState.BATCH_SIZE);
System.out.println("PARAM LOAD_FACTOR: " + TSOState.LOAD_FACTOR);
System.out.println("PARAM MAX_THREADS: " + maxThreads);
final TSOHandler handler = new TSOHandler(channelGroup, state);
bootstrap.setPipelineFactory(new TSOPipelineFactory(pipelineExecutor, handler));
bootstrap.setOption("tcpNoDelay", false);
bootstrap.setOption("child.tcpNoDelay", false);
bootstrap.setOption("child.keepAlive", true);
bootstrap.setOption("child.reuseAddress", true);
bootstrap.setOption("child.connectTimeoutMillis", 60000);
bootstrap.setOption("readWriteFair", true);
// *** Start the Netty running ***
// Create the monitor
ThroughputMonitor monitor = new ThroughputMonitor(state);
// Add the parent channel to the group
Channel channel = bootstrap.bind(new InetSocketAddress(config.getPort()));
channelGroup.add(channel);
// Compacter handler
ChannelFactory comFactory =
new NioServerSocketChannelFactory(
Executors.newCachedThreadPool(),
Executors.newCachedThreadPool(),
(Runtime.getRuntime().availableProcessors() * 2 + 1) * 2);
ServerBootstrap comBootstrap = new ServerBootstrap(comFactory);
ChannelGroup comGroup = new DefaultChannelGroup("compacter");
final CompacterHandler comHandler = new CompacterHandler(comGroup, state);
comBootstrap.setPipelineFactory(
new ChannelPipelineFactory() {
@Override
public ChannelPipeline getPipeline() throws Exception {
ChannelPipeline pipeline = Channels.pipeline();
pipeline.addLast("decoder", new ObjectDecoder());
pipeline.addLast("encoder", new ObjectEncoder());
pipeline.addLast("handler", comHandler);
return pipeline;
}
});
comBootstrap.setOption("tcpNoDelay", false);
comBootstrap.setOption("child.tcpNoDelay", false);
comBootstrap.setOption("child.keepAlive", true);
comBootstrap.setOption("child.reuseAddress", true);
comBootstrap.setOption("child.connectTimeoutMillis", 100);
comBootstrap.setOption("readWriteFair", true);
channel = comBootstrap.bind(new InetSocketAddress(config.getPort() + 1));
// Starts the monitor
monitor.start();
synchronized (lock) {
while (!finish) {
try {
lock.wait();
} catch (InterruptedException e) {
break;
}
}
}
// timestampOracle.stop();
handler.stop();
comHandler.stop();
state.stop();
// *** Start the Netty shutdown ***
// End the monitor
System.out.println("End of monitor");
monitor.interrupt();
// Now close all channels
System.out.println("End of channel group");
channelGroup.close().awaitUninterruptibly();
comGroup.close().awaitUninterruptibly();
// Close the executor for Pipeline
System.out.println("End of pipeline executor");
pipelineExecutor.shutdownNow();
// Now release resources
System.out.println("End of resources");
factory.releaseExternalResources();
comFactory.releaseExternalResources();
}
@Override
public void close() {
allChannels.close().awaitUninterruptibly();
channelFactory.releaseExternalResources();
}
/**
* Start a HyperGateClient
*
* <p>for that case use
*
* @throws Exception
*/
@Override
public void start() throws Exception {
if (this.running) {
throw new InstantiationException("HyperGate client " + this.getName() + "is running");
}
// Configure the client.
// TODO make it more robust & speedy implements Kryo serializer
this.channelFactory =
new NioClientSocketChannelFactory(
// TODO implement other executors
Executors.newCachedThreadPool(), Executors.newCachedThreadPool());
this.clientBootstrap = new ClientBootstrap(channelFactory);
ChannelPipelineFactory channelPipelineFactory =
new ChannelPipelineFactory() {
public ChannelPipeline getPipeline() throws Exception {
return Channels.pipeline(
// TODO make Encoder & Decoder - like a Strategy Pattern, and changeable via
// external settings
// new KryoObjectEncoder(),
// new
// KryoObjectDecoder(ClassResolvers.cacheDisabled(getClass().getClassLoader()))
// TODO #6
new ObjectEncoder(),
new ObjectDecoder(ClassResolvers.cacheDisabled(getClass().getClassLoader())),
new SimpleChannelUpstreamHandler() {
@Override
public void handleUpstream(ChannelHandlerContext ctx, ChannelEvent e)
throws Exception {
if (e instanceof ChannelStateEvent
&& ((ChannelStateEvent) e).getState() != ChannelState.INTEREST_OPS) {
LOG.info(e.toString());
}
super.handleUpstream(ctx, e);
}
@Override
public void channelConnected(ChannelHandlerContext ctx, ChannelStateEvent event) {
channel = event.getChannel();
// Send the first message
// channel.write(firstMessage);
}
@Override
public void messageReceived(ChannelHandlerContext ctx, MessageEvent e) {
// Get
serverListener(e.getMessage());
ctx.sendUpstream(e);
// e.getChannel().write(e.getStatus());
// e.getChannel().close();
}
@Override
public void exceptionCaught(ChannelHandlerContext ctx, ExceptionEvent e) {
LOG.warn("Unexpected exception from downstream.", e.getCause());
e.getChannel().close();
}
});
}
};
// Set up the pipeline factory.
this.clientBootstrap.setPipelineFactory(channelPipelineFactory);
// Start the connection attempt.
// ChannelFuture channelFuture = this.clientBootstrap.connect(new InetSocketAddress(host,
// setPort));
LOG.debug("CLIENT GOING TO CONNECT - host:" + host + " post:" + port);
this.channelFuture = this.clientBootstrap.connect(new InetSocketAddress(host, port));
// INFO
// correct shut down a client
// see http://netty.io/3.6/guide/#start.12 - 9. Shutting Down Your Application
// http://stackoverflow.com/questions/10911988/shutting-down-netty-server-when-client-connections-are-open
// Netty Server Shutdown
//
// Close server channel
// Shutdown boss and worker executor
// Release server bootstrap resource
// Example code
//
// ChannelFuture cf = serverChannel.close();
// cf.awaitUninterruptibly();
// bossExecutor.shutdown();
// workerExecutor.shutdown();
// thriftServer.releaseExternalResources();
// TODO Need to repair it
boolean goAway = false;
long countGoAway = 0;
final long stepGoAway = 50; // ms
LOG.warn("Warming up 0.6.0-SNAPSHOT ...");
while (goAway == false | countGoAway < (SERVER_CONNECTION_TIMEOUT / stepGoAway)) {
Thread.sleep(stepGoAway);
if (!channelFuture.isSuccess()) {
this.running = false;
goAway = true;
} else {
this.running = true;
goAway = true;
countGoAway = (SERVER_CONNECTION_TIMEOUT / stepGoAway) + 10;
}
countGoAway++;
LOG.warn(
"Count down for connection tomeout:"
+ countGoAway * stepGoAway
+ ":ms future:"
+ channelFuture.isSuccess()
+ " running:"
+ this.running);
}
if (this.running == false) {
LOG.warn("After ");
channelFuture.getCause().printStackTrace();
channelFactory.releaseExternalResources();
channelFuture = null;
}
}
private void shutDownChannelFuture(ChannelFuture channelFutureLocal) {
channelFutureLocal.getCause().printStackTrace();
channelFactory.releaseExternalResources();
channelFutureLocal = null;
running = false;
}
@Override
public void releaseExternalResources() {
for (ChannelFactory channelFactory : channelFactories) {
channelFactory.releaseExternalResources();
}
}