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Chapter 7. Asynchronous Messaging
7.1. Asynchronous Operations
Asynchronous operations allows some communication with the broker to take place in the background, while your program continues to execute. When send and receive operations are performed synchronously execution is blocked while communication takes place between the client and the broker.
Asynchronous send allow execution to continue without waiting on acknowledgement from the server. Asynchronous receive enables receivers to retrieve messages in the background, so that when you wish to retrieve a message using a receiver in your code, the message has already been fetched and is available locally.
Asynchronous operations significantly improve throughput; but you should understand the behavior of asynchronous operations and carefully manage it in your code.
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