PCF上RabbitMQ的Spring AMQP过时消费者

我们的团队在使用cloud foundry连接器的Spring AMQP方面遇到了一些问题。每当网络出现不稳定时，连接就会失败，然后AMQP似乎尝试自动恢复，无法自动恢复，然后创建一个新的使用者

问题是RabbitMQ似乎没有注销旧的消费者。。。因此，我们最终拥有40个消费者，而不是通常的一个消费者。而且，我认为，由于无效消费者的数量，旧消费者会收到一些消息，但不会运行我们的代码。所以我们有一堆未确认的消息，直到应用程序重新启动并清除消费者列表

我不确定这是我们这边的一个错误配置，还是一个bug。有什么想法吗

其他信息见下文

我们日志的一小部分：

a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842 com.rabbitmq.client.TopologyRecoveryException: Caught an exception while recovering consumer amq.ctag-Dqik8vz9dSPiUzMbM4uGbw: connection is already closed due to connection error; cause: java.net.SocketException: Connection reset
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at java.lang.Thread.run(Thread.java:748) [na:1.8.0_162]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842 2019-03-04 00:31:47.823 ERROR [Atlas Backend,,,] 23 --- [0.32.27.77:5672] c.r.c.impl.ForgivingExceptionHandler     : Caught an exception when recovering topology Caught an exception while recovering consumer amq.ctag-t7_vY47weZNYtWagl__pYA: connection is already closed due to connection error; cause: java.net.SocketException: Connection reset
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQChannel.ensureIsOpen(AMQChannel.java:198) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842 2019-03-04 00:31:47.823 ERROR [Atlas Backend,,,] 23 --- [0.32.27.77:5672] c.r.c.impl.ForgivingExceptionHandler     : Caught an exception when recovering topology Caught an exception while recovering consumer amq.ctag-AK1YOpN0_E2KVwSi4fzOaw: connection is already closed due to connection error; cause: java.net.SocketException: Connection reset
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQConnection.notifyRecoveryCanBeginListeners(AMQConnection.java:693) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQConnection.doFinalShutdown(AMQConnection.java:687) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:577) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at java.lang.Thread.run(Thread.java:748) [na:1.8.0_162]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842 2019-03-04 00:31:47.822 ERROR [Atlas Backend,,,] 23 --- [0.32.27.77:5672] c.r.c.impl.ForgivingExceptionHandler     : Caught an exception when recovering topology Caught an exception while recovering consumer amq.ctag-vrWhRdhk3ejrXo2-ImjXzA: connection is already closed due to connection error; cause: java.net.SocketException: Connection reset
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQChannel.rpc(AMQChannel.java:244) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at java.lang.Thread.run(Thread.java:748) [na:1.8.0_162]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at java.lang.Thread.run(Thread.java:748) [na:1.8.0_162]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.RecordedConsumer.recover(RecordedConsumer.java:60) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     ... 7 common frames omitted
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverConsumers(AutorecoveringConnection.java:657) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.access$000(AutorecoveringConnection.java:53) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverConsumers(AutorecoveringConnection.java:657) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:577) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.ChannelN.basicConsume(ChannelN.java:1242) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.ChannelN.basicConsume(ChannelN.java:1242) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverConsumers(AutorecoveringConnection.java:657) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQConnection.doFinalShutdown(AMQConnection.java:687) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQConnection.notifyRecoveryCanBeginListeners(AMQConnection.java:693) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.AMQChannel.ensureIsOpen(AMQChannel.java:198) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.RecordedConsumer.recover(RecordedConsumer.java:60) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.RecordedConsumer.recover(RecordedConsumer.java:60) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.recoverConsumers(AutorecoveringConnection.java:673) [amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at com.rabbitmq.client.impl.ChannelN.basicConsume(ChannelN.java:1242) ~[amqp-client-4.0.3.jar!/:4.0.3]
a0b279ba-fb73-41cc-bdf9-b430cec52856 1 Mon Mar 04 2019 02:31:47.842     at java.lang.Thread.run(Thread.java:748) [na:1.8.0_162]

我们使用@RabbitListener注释注册我们的消费者

    @RabbitListener(id = CONSUMER_ID, queues = "${CommonInternalEndPoint}", containerFactory = "rabbitLocalContainerFactory")
    protected void process(Object messageObject) {

当我们连接到多个rabbit mq实例时，我们需要手动声明连接工厂。我们的连接工厂来自cloud foundry连接器：

@Configuration
@Profile("cloud")
public class RabbitCloudConfiguration {

    @Bean
    public Cloud cloud(){
        return new CloudFactory().getCloud();
    }

    @Bean
    @Primary
    public ConnectionFactory connectionFactory(){
        return cloud().getSingletonServiceConnector(ConnectionFactory.class, null);
    }

    @Bean("rabbitLocalContainerFactory")
    public SimpleRabbitListenerContainerFactory rabbitLocalContainerFactory(){
        SimpleRabbitListenerContainerFactory containerFactory = new SimpleRabbitListenerContainerFactory();
        containerFactory.setConnectionFactory(connectionFactory());
        containerFactory.setAutoStartup(true);
        return containerFactory;
    }
}

---

我们使用的是Spring Boot 1.5.9、Framework 4.3.6、AMQP 1.7.4、RabbitMQ AMQP Client 4.0.3

从版本2.0开始，Spring AMQP在目标RabbitMQ ConnectionFactory上禁用automaticRecoveryEnabled：

由于您使用的版本基于云连接器提供的RabbitMQ ConnectionFactory，因此需要显式禁用它：

@Bean
@Primary
public ConnectionFactory connectionFactory(){
    ConnectionFactory connectionFactory = cloud().getSingletonServiceConnector(ConnectionFactory.class, null);
    ((CachingConnectionFactory) connectionFactory).getRabbitConnectionFactory().setAutomaticRecoveryEnabled(false);
    return connectionFactory;
}

---

您的解决方案将基于Spring AMQP提供的恢复机制。

您使用的Spring AMQP版本是什么？我们使用的是Spring Boot 1.5.9、Framework 4.3.6、AMQP 1.7.4、RabbitMQ AMQP Client 4.0.3，我不确定是否应该这样做，因为根据文档，这两种恢复都应该很好。但我发现情况并非如此，如果他们在最新版本中禁用了，正如我所说的：从SpringAMQP2.0开始，默认情况下是禁用的