[rabbitmq-discuss] Confirm consistent hash exchange behavior

[SteveO]

Greetings-

I wanted to get some clarification on CHX hash key routing to a queue. Let's
say I have Queue1 and Queue2 bound with equal weight to a CHX. I produce a
message with the routing key "Car.Color.Blue" to the CHX and it is routed to
Queue2. All is well. I delete Queue2. I produce another message with the
routing key "Car.Color.Blue" to the CHX and it is now routed to Queue1. All
is well. I re-create and bind Queue2 to the CHX. I produce another message
with the routing key "Car.Color.Blue" to the CHX and it is routed back to
Queue2. That's the part that seemed odd. 

The design requirements I have is that all messages with the same
routing-key be present in only one queue. I can't meet those requirements by
that queue deletion/re-creation with the same name. So, I'd have to avoid
doing that or find out if this is expected behavior.

The set up I have is this...

P ---> TopicExchange --->CHX ---> Q1, Q2

Producers send messages with routing keys like "Car.Color.<some color>".
The CHX is bound to the TopicExchange with a routing key of "Car.Color.#".
Queues 1 and 2 are bound to the CHX with equal weight.

I am at Rabbit 3.0.1. 

Thanks.

s 



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