ChannelGroup channelGroup = new DefaultChannelGroup(TSOServer.class.getName());
// threads max
// int maxThreads = Runtime.getRuntime().availableProcessors() *2 + 1;
int maxThreads = 5;
// Memory limitation: 1MB by channel, 1GB global, 100 ms of timeout
ThreadPoolExecutor pipelineExecutor = new OrderedMemoryAwareThreadPoolExecutor(maxThreads, 1048576, 1073741824, 100,
TimeUnit.MILLISECONDS, new ObjectSizeEstimator() {
@Override
public int estimateSize(Object o) {
return 1000;
}
}, 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;
}
state.addRecord(new byte[] { LoggerProtocol.LOGSTART }, new AddRecordCallback() {
@Override
public void addRecordComplete(int rc, Object ctx) {
}
}, null);
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);
handler.start();
bootstrap.setPipelineFactory(new TSOPipelineFactory(pipelineExecutor, handler));
bootstrap.setOption("tcpNoDelay", false);
//setting buffer size can improve I/O
bootstrap.setOption("child.sendBufferSize", 1048576);
bootstrap.setOption("child.receiveBufferSize", 1048576);
// better to have an receive buffer predictor
bootstrap.setOption("receiveBufferSizePredictorFactory", new AdaptiveReceiveBufferSizePredictorFactory());
//if the server is sending 1000 messages per sec, optimum write buffer water marks will
//prevent unnecessary throttling, Check NioSocketChannelConfig doc
bootstrap.setOption("writeBufferLowWaterMark", 32 * 1024);
bootstrap.setOption("writeBufferHighWaterMark", 64 * 1024);
bootstrap.setOption("child.tcpNoDelay", false);
bootstrap.setOption("child.keepAlive", true);
bootstrap.setOption("child.reuseAddress", true);
bootstrap.setOption("child.connectTimeoutMillis", 60000);
// *** 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();
}