[rabbitmq-discuss] frame size eror: source F5 Loadbalancer

[Stephen Ehlas]

Hi

We have a curious situation with RabbitMQ. When the clients try to connect directly to a rabbitMQ node, all is ok. When we pass them through our F5 load balancer, the 3rd connection attempt is aborted. The load balancer is set to round robin. In the RabbitMQ logs we see this:

=ERROR REPORT==== 22-May-2014::15:25:36 ===
AMQP connection <0.13650.16> (closed), channel 19793 - error:
{amqp_error,frame_error,
            "type 65, all octets = <<>>: {frame_too_large,1342177289,131064}",
            none}

=ERROR REPORT==== 22-May-2014::15:25:39 ===
closing AMQP connection <0.13650.16> (192.168.x.x:50614 -> 192.168.x.x:5672):
fatal_frame_error

=ERROR REPORT==== 22-May-2014::15:25:39 ===
AMQP connection <0.13665.16> (closed), channel 19793 - error:
{amqp_error,frame_error,
            "type 65, all octets = <<>>: {frame_too_large,1342177289,131064}",
            none}

=ERROR REPORT==== 22-May-2014::15:25:42 ===
closing AMQP connection <0.13665.16> (192.168.x.x:50615 -> 192.168.x.x:5672):
fatal_frame_error

On the client side we see this error:

15867 ERROR MassTransit.Context.ServiceBusReceiveContext - Consumer Exception Exposed
None of the specified endpoints were reachable
Endpoints attempted:
------------------------------------------------
endpoint=amqp-0-9://<HOSTNAME>:5672, attempts=1
RabbitMQ.Client.Exceptions.ProtocolVersionMismatchException: AMQP server protocol negotiation failure: server version unknown-unknown, client version 0-9

Has anyone seen this before?

Regards

Stephen Ehlas
Senior IT Systems Engineer
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