@Override public void start() { logger.info("Starting {}...", this); Responder responder = new SpecificResponder(AvroSourceProtocol.class, this); if (maxThreads <= 0) { server = new NettyServer(responder, new InetSocketAddress(bindAddress, port)); } else { server = new NettyServer( responder, new InetSocketAddress(bindAddress, port), new NioServerSocketChannelFactory( Executors.newCachedThreadPool(), Executors.newFixedThreadPool(maxThreads))); } connectionCountUpdater = Executors.newSingleThreadScheduledExecutor(); server.start(); sourceCounter.start(); super.start(); final NettyServer srv = (NettyServer) server; connectionCountUpdater.scheduleWithFixedDelay( new Runnable() { @Override public void run() { sourceCounter.setOpenConnectionCount(Long.valueOf(srv.getNumActiveConnections())); } }, 0, 60, TimeUnit.SECONDS); logger.info("Avro source {} started.", getName()); }
@Override public void start() { logger.info("Starting thrift source"); ExecutorService sourceService; ThreadFactory threadFactory = new ThreadFactoryBuilder().setNameFormat("Flume Thrift IPC Thread %d").build(); if (maxThreads == 0) { sourceService = Executors.newCachedThreadPool(threadFactory); } else { sourceService = Executors.newFixedThreadPool(maxThreads, threadFactory); } try { serverTransport = new TNonblockingServerSocket(new InetSocketAddress(bindAddress, port)); } catch (TTransportException e) { throw new FlumeException("Failed to start Thrift Source.", e); } THsHaServer.Args thhsArgs = new THsHaServer.Args(serverTransport); thhsArgs.processor(new ThriftSourceProtocol.Processor(new ThriftSourceHandler())); // thhsArgs.transportFactory(new TFramedTransport.Factory()); thhsArgs.protocolFactory(new TBinaryProtocol.Factory()); thhsArgs.executorService(sourceService); server = new THsHaServer(thhsArgs); // 半同步半异步的服务模型 servingExecutor = Executors.newSingleThreadExecutor( new ThreadFactoryBuilder().setNameFormat("Flume Thrift Source I/O Boss").build()); /** Start serving. */ servingExecutor.submit( new Runnable() { @Override public void run() { server.serve(); } }); long timeAfterStart = System.currentTimeMillis(); while (!server.isServing()) { try { if (System.currentTimeMillis() - timeAfterStart >= 10000) { throw new FlumeException("Thrift server failed to start!"); } TimeUnit.MILLISECONDS.sleep(1000); } catch (InterruptedException e) { Thread.currentThread().interrupt(); throw new FlumeException("Interrupted while waiting for Thrift server" + " to start.", e); } } sourceCounter.start(); logger.info("Started Thrift source."); super.start(); }
@Override public synchronized void start() { logger.info("SpoolDirectorySource source starting with directory: {}", spoolDirectory); executor = Executors.newSingleThreadScheduledExecutor(); File directory = new File(spoolDirectory); try { reader = new ReliableSpoolingZipFileEventReader.Builder() .spoolDirectory(directory) .completedSuffix(completedSuffix) .ignorePattern(ignorePattern) .trackerDirPath(trackerDirPath) .annotateFileName(fileHeader) .fileNameHeader(fileHeaderKey) .annotateBaseName(basenameHeader) .baseNameHeader(basenameHeaderKey) .deserializerType(deserializerType) .deserializerContext(deserializerContext) .deletePolicy(deletePolicy) .inputCharset(inputCharset) .decodeErrorPolicy(decodeErrorPolicy) .consumeOrder(consumeOrder) .build(); } catch (IOException ioe) { throw new FlumeException("Error instantiating spooling event parser", ioe); } Runnable runner = new SpoolDirectoryRunnable(reader, sourceCounter); executor.scheduleWithFixedDelay(runner, 0, POLL_DELAY_MS, TimeUnit.MILLISECONDS); super.start(); logger.debug("SpoolDirectoryZipSource source started"); sourceCounter.start(); }