Question

我试图在连接断开的情况下使用自动恢复功能。我有两个问题：

1）自动恢复代码似乎完全忽略了networkRecoveryInterval。在我的日志文件中，连接断开的1分钟，文件增长到1.5 GB。以下错误不断重复。

在连接恢复期间发现异常！ java.net.SocketException：网络无法访问 java.net.PlainSocketImpl.socketConnect（Native Method）at java.net.AbstractPlainSocketImpl.doConnect（AbstractPlainSocketImpl.java:339）在 java.net.AbstractPlainSocketImpl.connectToAddress（AbstractPlainSocketImpl.java:200）在 java.net.AbstractPlainSocketImpl.connect（AbstractPlainSocketImpl.java:182）在java.net.SocksSocketImpl.connect（SocksSocketImpl.java:391）at java.net.Socket.connect（Socket.java:579）at com.rabbitmq.client.impl.FrameHandlerFactory.create（FrameHandlerFactory.java:32）在 com.rabbitmq.client.impl.recovery.RecoveryAwareAMQConnectionFactory.newConnection（RecoveryAwareAMQConnectionFactory.java:34）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverConnection（AutorecoveringConnection.java:388）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.beginAutomaticRecovery（AutorecoveringConnection.java:360）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.access $ 000（AutorecoveringConnection.java:48）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection $ 1.shutdownCompleted（AutorecoveringConnection.java:345）在 com.rabbitmq.client.impl.ShutdownNotifierComponent.notifyListeners（ShutdownNotifierComponent.java:75）在 com.rabbitmq.client.impl.AMQConnection $ MainLoop.run（AMQConnection.java:572）在java.lang.Thread.run（Thread.java:722）

2）最后当我打开路由器时，网络恢复不起作用。我在我的日志文件中得到了这个。

恢复拓扑时捕获异常同时捕获异常恢复队列8923yrbk com.rabbitmq.client.TopologyRecoveryException：捕获异常同时恢复队列8923yrbk at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverQueues（AutorecoveringConnection.java:459）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverEntities（AutorecoveringConnection.java:424）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.beginAutomaticRecovery（AutorecoveringConnection.java:365）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.access $ 000（AutorecoveringConnection.java:48）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection $ 1.shutdownCompleted（AutorecoveringConnection.java:345）在 com.rabbitmq.client.impl.ShutdownNotifierComponent.notifyListeners（ShutdownNotifierComponent.java:75）在 com.rabbitmq.client.impl.AMQConnection $ MainLoop.run（AMQConnection.java:572）在java.lang.Thread.run（Thread.java:722）引起： com.rabbitmq.client.AlreadyClosedException：连接已经存在由于连接错误而关闭;原因： com.rabbitmq.client.MissedHeartbeatException：缺少心跳心跳= 45秒 com.rabbitmq.client.impl.AMQChannel.ensureIsOpen（AMQChannel.java:190）在com.rabbitmq.client.impl.AMQChannel.rpc（AMQChannel.java:223）at com.rabbitmq.client.impl.AMQChannel.privateRpc（AMQChannel.java:209）在 com.rabbitmq.client.impl.AMQChannel.exnWrappingRpc（AMQChannel.java:118）在com.rabbitmq.client.impl.ChannelN.queueDeclare（ChannelN.java:779）在 com.rabbitmq.client.impl.recovery.AutorecoveringChannel.queueDeclare（AutorecoveringChannel.java:230）在 com.rabbitmq.client.impl.recovery.RecordedQueue.recover（RecordedQueue.java:36）在 com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverQueues（AutorecoveringConnection.java:448） ......还有7个

这是我非常简单的消费者代码。请注意，我在新线程中编写了所有代码，因为我不希望我的构造函数被阻塞。

private ConnectionFactory factory = null;
private Connection connection = null;
private Channel channel = null;

private PaymentInfoFromGlobalServerConsumer() {
    new Thread(new Runnable() {
        public void run() {
            factory = new ConnectionFactory();
            try {
                factory.setUri(amqpServerUrl);
                factory.setAutomaticRecoveryEnabled(true);
                factory.setNetworkRecoveryInterval(30000); // In case of broken connection, try again every 30 seconds (hope this is correct understanding)
                factory.setRequestedHeartbeat(45); //Keep sending the heartbeat every 45 seconds to prevent any routers from considering the connection stale.
            } catch (KeyManagementException | NoSuchAlgorithmException | URISyntaxException e) {
                //Will never happen if configured properly
                logger.error(e);
                return;
            }

            try {
                connection = factory.newConnection();
                channel = connection.createChannel();
                //Create a durable queue (if not already present)
                channel.queueDeclare(merchantId, true, false, false, null);

                QueueingConsumer consumer = new QueueingConsumer(channel);
                channel.basicConsume(merchantId, false, consumer);

                while (true) {
                    QueueingConsumer.Delivery delivery = consumer.nextDelivery();
                    String billId = new String(delivery.getBody());

                    //TODO - Redeliveries are possible as per design
                    System.out.println(" [x] Received '" + billId + "'");
                    System.out.println(" [x] Done" );

                    channel.basicAck(delivery.getEnvelope().getDeliveryTag(), false);
                }               
            } catch (IOException | ConsumerCancelledException | InterruptedException e) {
                e.printStackTrace();
                logger.error(e);
            } catch (ShutdownSignalException e) {
                System.out.println(e.isInitiatedByApplication() + " " + e.isHardError());
            } finally {
                close();
            }
        }           
    }).start();
}

public void close() {
    try {
        if (channel != null) channel.close();
    } catch (IOException | AlreadyClosedException e) {
        //Cannot do anything now
    }
    try {
        if (connection != null) connection.close();
    } catch (IOException | AlreadyClosedException e) {
        //Cannot do anything now
    }
}

我是amqp的新手，所以任何帮助都表示赞赏。谢谢

Answer 1

尝试恢复拓扑以及连接。

factory.setTopologyRecoveryEnabled(true);

amqp - 在连接断开的情况下使用自动恢复

1 个答案: