Durable and non-durable subscriptions
Differentiate between durable and non-durable subscriptions?
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This model allows exchanging messages through queues created for some determinations. A client may send and receive messages from one or many queues. PTP model is much easy than pub/sub model. A durable subscription provides a subscriber freedom of receiving all the messages from a topic, while a non-durable subscription doesn't make any guarantees about messages sent by others when a client was disconnected from any topic.
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