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"one interesting concept about queues is contention and this is where RabbitMQ and others are behind"
Can you explain what this means? What kind of contention are you talking about. You say "RabbitMQ and others" - which others? Who implements this feature and what does it look like?
"you can't block a produced in RabbitMQ based on the number of messages on the queue"
Yes you can.
Well - it depends on your use case. RabbitMQ enables you to determine queue length, and supports flow control.
- RabbitMQ has a memory based flow control based on the total memory you have in the machine. I know I can develop something over RabbitMQ to accomplish what I want (limits based on number of messages) but I prefer to have the support within RabbitMQ.
- WebLogic JMS can block producers based on number of messages as a flow control method.
I don't know what WebLogic can do for flow control exactly. Please email rabbitmq-discuss to get a definitive answer and discussion on what you can do with Rabbit, which supports various mechanisms.
"one interesting concept about queues is contention and this is where RabbitMQ and others are behind"
Can you explain what this means? What kind of contention are you talking about. You say "RabbitMQ and others" - which others? Who implements this feature and what does it look like?
"you can't block a produced in RabbitMQ based on the number of messages on the queue"
Yes you can.
Well - it depends on your use case. RabbitMQ enables you to determine queue length, and supports flow control.
But, perhaps you had something else in mind?