Institute of Information Science - University of Miskolc

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Messaging systems

Messaging systems are asynchronous parallel systems
In the background there is socket communication as well
The system is asynchronous because we should not wait for the answer, execution flow is continuous, non-blocking.
Each function call creates a message on the “Message Queue”. Message processing is alway parallel in a different process.
This indirect method facilitated the loose coupling of different systems.
Guaranteed message delivery is feasible, because of the intermediate message queue.
Synchronous function calls can be simulated with a second message queue.