Spring PCF 上 RabbitMQ 的 AMQP 陈旧消费者

Question

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。每当网络不稳定，连接失败，然后 AMQP 似乎尝试自动恢复，自动恢复失败，然后创建一个新的消费者。

问题是 RabbitMQ 似乎没有注销旧消费者...所以我们最终有 40 个消费者，而不是通常的一个个消费者。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。

我不确定这是我们的配置错误还是错误。有什么想法吗？

下面的附加信息。

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[=11=]0(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;
    }
}

Answer 1

We are using 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：https://docs.spring.io/spring-amqp/docs/2.1.4.RELEASE/reference/#auto-recovery

由于您使用的版本是基于云连接器提供的 RabbitMQ ConnectionFactory，您需要明确禁用它：

@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。

Spring PCF 上 RabbitMQ 的 AMQP 陈旧消费者

Spring AMQP Stale Consumers for RabbitMQ on PCF

rabbitmq

spring-amqp

spring-cloud-connectors