＆＃34;频道关闭：连接错误＆＃34;

时间：2015-03-14 23:35:46

标签： amazon-ec2 rabbitmq load-balancing spring-amqp

我在AWS上设置了一个包含两个节点的RabbitMQ群集，并按照here所述启用了HA。然后，我设置了一个Elastic Load Balancer映射5672到实例＆＃39; 5672端口，对实例进行定期运行状况检查＆＃39; 15672端口（HTTP管理端口）。然后，我启动了两个监听器（每个节点一个），每个监听器有4个消费者，并在负载均衡器的DNS上指向spring.rabbitmq.host。但是，我定期收到以下错误：

[E] [2015-03-14 23:13:23,890] [pool-4-thread-9         ] [CachingConnectionFactory        ] [                                    ] Channel shutdown: connection error
[E] [2015-03-14 23:13:23,891] [pool-4-thread-9         ] [CachingConnectionFactory        ] [                                    ] Channel shutdown: connection error
[E] [2015-03-14 23:13:23,891] [pool-4-thread-9         ] [CachingConnectionFactory        ] [                                    ] Channel shutdown: connection error
[E] [2015-03-14 23:13:23,891] [pool-4-thread-9         ] [CachingConnectionFactory        ] [                                    ] Channel shutdown: connection error
[W] [2015-03-14 23:13:24,758] [impleAsyncTaskExecutor-5] [SimpleMessageListenerContainer  ] [                                    ] Consumer raised exception, processing can restart if the connection factory supports it
com.rabbitmq.client.ShutdownSignalException: connection error
    at com.rabbitmq.client.impl.AMQConnection.startShutdown(AMQConnection.java:717) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection.shutdown(AMQConnection.java:707) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:565) ~[amqp-client-3.4.2.jar!/:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.io.EOFException
    at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290) ~[?:1.8.0_40]
    at com.rabbitmq.client.impl.Frame.readFrom(Frame.java:95) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.SocketFrameHandler.readFrame(SocketFrameHandler.java:139) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:534) ~[amqp-client-3.4.2.jar!/:?]
    ... 1 more
[I] [2015-03-14 23:13:24,761] [impleAsyncTaskExecutor-5] [SimpleMessageListenerContainer  ] [                                    ] Restarting Consumer: tags=[[amq.ctag-H-1ed6xO3GL7qW58bkLUZA]], channel=Cached Rabbit Channel: AMQChannel(amqp://qube@10.100.43.76:5672qube,1), acknowledgeMode=AUTO local queue size=0
[W] [2015-03-14 23:13:24,762] [impleAsyncTaskExecutor-8] [SimpleMessageListenerContainer  ] [                                    ] Consumer raised exception, processing can restart if the connection factory supports it
com.rabbitmq.client.ShutdownSignalException: connection error
    at com.rabbitmq.client.impl.AMQConnection.startShutdown(AMQConnection.java:717) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection.shutdown(AMQConnection.java:707) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:565) ~[amqp-client-3.4.2.jar!/:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.io.EOFException
    at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290) ~[?:1.8.0_40]
    at com.rabbitmq.client.impl.Frame.readFrom(Frame.java:95) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.SocketFrameHandler.readFrame(SocketFrameHandler.java:139) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:534) ~[amqp-client-3.4.2.jar!/:?]
    ... 1 more
[I] [2015-03-14 23:13:24,762] [impleAsyncTaskExecutor-8] [SimpleMessageListenerContainer  ] [                                    ] Restarting Consumer: tags=[[amq.ctag-nJAmieDx-kSuxl9arsXiww]], channel=Cached Rabbit Channel: AMQChannel(amqp://qube@10.100.43.76:5672qube,2), acknowledgeMode=AUTO local queue size=0
[W] [2015-03-14 23:13:24,767] [impleAsyncTaskExecutor-7] [SimpleMessageListenerContainer  ] [                                    ] Consumer raised exception, processing can restart if the connection factory supports it
com.rabbitmq.client.ShutdownSignalException: connection error
    at com.rabbitmq.client.impl.AMQConnection.startShutdown(AMQConnection.java:717) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection.shutdown(AMQConnection.java:707) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:565) ~[amqp-client-3.4.2.jar!/:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.io.EOFException
    at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290) ~[?:1.8.0_40]
    at com.rabbitmq.client.impl.Frame.readFrom(Frame.java:95) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.SocketFrameHandler.readFrame(SocketFrameHandler.java:139) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:534) ~[amqp-client-3.4.2.jar!/:?]
    ... 1 more
[I] [2015-03-14 23:13:24,768] [impleAsyncTaskExecutor-7] [SimpleMessageListenerContainer  ] [                                    ] Restarting Consumer: tags=[[amq.ctag-PAQvN8P57_9oiElyqYRJWw]], channel=Cached Rabbit Channel: AMQChannel(amqp://qube@10.100.43.76:5672qube,3), acknowledgeMode=AUTO local queue size=0
[W] [2015-03-14 23:13:24,768] [impleAsyncTaskExecutor-6] [SimpleMessageListenerContainer  ] [                                    ] Consumer raised exception, processing can restart if the connection factory supports it
com.rabbitmq.client.ShutdownSignalException: connection error
    at com.rabbitmq.client.impl.AMQConnection.startShutdown(AMQConnection.java:717) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection.shutdown(AMQConnection.java:707) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:565) ~[amqp-client-3.4.2.jar!/:?]
    at java.lang.Thread.run(Thread.java:745) [?:1.8.0_40]
Caused by: java.io.EOFException
    at java.io.DataInputStream.readUnsignedByte(DataInputStream.java:290) ~[?:1.8.0_40]
    at com.rabbitmq.client.impl.Frame.readFrom(Frame.java:95) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.SocketFrameHandler.readFrame(SocketFrameHandler.java:139) ~[amqp-client-3.4.2.jar!/:?]
    at com.rabbitmq.client.impl.AMQConnection$MainLoop.run(AMQConnection.java:534) ~[amqp-client-3.4.2.jar!/:?]
    ... 1 more
[I] [2015-03-14 23:13:24,769] [impleAsyncTaskExecutor-6] [SimpleMessageListenerContainer  ] [                                    ] Restarting Consumer: tags=[[amq.ctag-w6apIlL78ViAnTOzx2Qejg]], channel=Cached Rabbit Channel: AMQChannel(amqp://qube@10.100.43.76:5672qube,4), acknowledgeMode=AUTO local queue size=0

如果我将每个消费者直接指向一个节点（不使用负载均衡器），则不会发生这种情况。可能导致这种行为的原因是什么？我怎么能绕过这个？

1 个答案:

答案 0 :(得分：8)

ping管理端口不会使amqp连接保持活动状态。

您需要将心跳配置为足够低的值，以防止负载均衡器丢弃“空闲”连接。

看起来您可能正在使用Spring Boot（基于属性名称），并且它当前不会将requestedHeartbeats公开为属性;您需要通过将自己的rabbitConnectionFactory bean与基础rabbitmq连接工厂心跳设置连接来覆盖引导工厂。有关详细信息，请参阅documentation。

也就是说，使用带有Spring AMQP的负载均衡器没有任何好处，因为它使用单个长期连接。考虑在addresses属性中配置您的两个实例，如果第一个实例不可用，它将故障转移到第二个实例。

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