public synchronized void freeze(final CoreRemotingConnection connectionToKeepOpen) { if (!started) return; failureCheckAndFlushThread.close(false); for (Acceptor acceptor : acceptors) { try { acceptor.pause(); } catch (Exception e) { HornetQServerLogger.LOGGER.errorStoppingAcceptor(); } } HashMap<Object, ConnectionEntry> connectionEntries = new HashMap<Object, ConnectionEntry>(connections); // Now we ensure that no connections will process any more packets after this method is // complete then send a disconnect packet for (Entry<Object, ConnectionEntry> entry : connectionEntries.entrySet()) { RemotingConnection conn = entry.getValue().connection; if (conn.equals(connectionToKeepOpen)) continue; if (HornetQServerLogger.LOGGER.isTraceEnabled()) { HornetQServerLogger.LOGGER.trace("Sending connection.disconnection packet to " + conn); } if (!conn.isClient()) { conn.disconnect(false); connections.remove(entry.getKey()); } } }
public void stop(final boolean criticalError) throws Exception { if (!started) { return; } failureCheckAndFlushThread.close(criticalError); // We need to stop them accepting first so no new connections are accepted after we send the // disconnect message for (Acceptor acceptor : acceptors) { if (HornetQServerLogger.LOGGER.isDebugEnabled()) { HornetQServerLogger.LOGGER.debug("Pausing acceptor " + acceptor); } acceptor.pause(); } if (HornetQServerLogger.LOGGER.isDebugEnabled()) { HornetQServerLogger.LOGGER.debug("Sending disconnect on live connections"); } HashSet<ConnectionEntry> connectionEntries = new HashSet<ConnectionEntry>(connections.values()); // Now we ensure that no connections will process any more packets after this method is complete // then send a disconnect packet for (ConnectionEntry entry : connectionEntries) { RemotingConnection conn = entry.connection; if (HornetQServerLogger.LOGGER.isTraceEnabled()) { HornetQServerLogger.LOGGER.trace("Sending connection.disconnection packet to " + conn); } conn.disconnect(criticalError); } for (Acceptor acceptor : acceptors) { acceptor.stop(); } acceptors.clear(); connections.clear(); if (managementService != null) { managementService.unregisterAcceptors(); } threadPool.shutdown(); if (!criticalError) { boolean ok = threadPool.awaitTermination(10000, TimeUnit.MILLISECONDS); if (!ok) { HornetQServerLogger.LOGGER.timeoutRemotingThreadPool(); } } started = false; }
public synchronized void start() throws Exception { if (started) { return; } ClassLoader tccl = AccessController.doPrivileged( new PrivilegedAction<ClassLoader>() { public ClassLoader run() { return Thread.currentThread().getContextClassLoader(); } }); // The remoting service maintains it's own thread pool for handling remoting traffic // If OIO each connection will have it's own thread // If NIO these are capped at nio-remoting-threads which defaults to num cores * 3 // This needs to be a different thread pool to the main thread pool especially for OIO where we // may need // to support many hundreds of connections, but the main thread pool must be kept small for // better performance ThreadFactory tFactory = new HornetQThreadFactory( "HornetQ-remoting-threads-" + server.toString() + "-" + System.identityHashCode(this), false, tccl); threadPool = Executors.newCachedThreadPool(tFactory); ClassLoader loader = Thread.currentThread().getContextClassLoader(); for (TransportConfiguration info : acceptorsConfig) { try { Class<?> clazz = loader.loadClass(info.getFactoryClassName()); AcceptorFactory factory = (AcceptorFactory) clazz.newInstance(); // Check valid properties if (info.getParams() != null) { Set<String> invalid = ConfigurationHelper.checkKeys( factory.getAllowableProperties(), info.getParams().keySet()); if (!invalid.isEmpty()) { HornetQServerLogger.LOGGER.invalidAcceptorKeys( ConfigurationHelper.stringSetToCommaListString(invalid)); continue; } } String protocol = ConfigurationHelper.getStringProperty( TransportConstants.PROTOCOL_PROP_NAME, TransportConstants.DEFAULT_PROTOCOL, info.getParams()); ProtocolManager manager = protocolMap.get(protocol); if (manager == null) { throw HornetQMessageBundle.BUNDLE.noProtocolManagerFound(protocol); } ClusterConnection clusterConnection = lookupClusterConnection(info); Acceptor acceptor = factory.createAcceptor( clusterConnection, info.getParams(), new DelegatingBufferHandler(), manager, this, threadPool, scheduledThreadPool, manager); if (defaultInvmSecurityPrincipal != null && acceptor.isUnsecurable()) { acceptor.setDefaultHornetQPrincipal(defaultInvmSecurityPrincipal); } acceptors.add(acceptor); if (managementService != null) { acceptor.setNotificationService(managementService); managementService.registerAcceptor(acceptor, info); } } catch (Exception e) { HornetQServerLogger.LOGGER.errorCreatingAcceptor(e, info.getFactoryClassName()); } } for (Acceptor a : acceptors) { a.start(); } // This thread checks connections that need to be closed, and also flushes confirmations failureCheckAndFlushThread = new FailureCheckAndFlushThread(RemotingServiceImpl.CONNECTION_TTL_CHECK_INTERVAL); failureCheckAndFlushThread.start(); started = true; }