Question

For any given queue, the maximum length (of either type) can be defined using a policy (this option is highly recommended) or by clients using the queue s optional arguments. In the case where both the effective queue policy and arguments specify a maximum length, the minimum of the two values will be used. Queue length settings also can be enforced by operator policies.

https://www.rabbitmq.com/maxlength.html

As we can see, the rabbitmq document has told us how to set the max-length of queues. But I d like to know what the default value of max-length is if we not do any changes. is it no limit until my server s resources not available?

Answer 1

The default maximum length of a RabbitMQ queue is unlimited, yes it has no limit until the server s resources are consumed.

If we set up length ourselves using x-max-length or using management-console, then we have to carefully consider the need of the application if queue is frequently reaching maximum length the oldest messages will be dopped

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