RabbitMQ Work Queues (Work mode) involves one producer and multiple consumers. Each message can only be consumed by one consumer, allowing for concurrent message consumption.
Architecture Diagram
Explanation: P represents the producer, C1 and C2 represent consumers, and the red color represents the queue.
Use Cases
This mode is suitable for scenarios involving individual businesses and one-to-one concurrent processing. For example, when sending out 1000 emails, you can utilize 100 consumers to concurrently send out 100 emails at a time.
Note: When multiple consumers are concurrently consuming messages from the same queue, it is not possible to guarantee strict message order. For instance, if there are 10 messages in the queue and 10 consumers concurrently process them, some consumers may execute faster than others. As a result, the order of message processing may not align with the order of messages in the queue. If your business has strict requirements for message order, you can control each queue to have only one consumer, ensuring strict message processing order at the cost of reduced concurrency.