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RabbitMQ Messaging & Async Systems · Lesson

Competing Consumers Pattern

Implement the competing consumers pattern to allow multiple consumers to process messages from a single queue. Scale your processing capacity by adding more consumers.

Scaling with Competing Consumers

Welcome! In distributed systems, you often need to process many tasks efficiently. The Competing Consumers pattern is a powerful way to achieve this.

It allows you to scale your message processing capacity by simply adding more workers.

How Competing Consumers Work

Imagine a single queue of tasks. Instead of one worker taking all tasks, multiple workers (consumers) listen to this same queue.

  • Each message is delivered to only one of the competing consumers.
  • Consumers "compete" to receive the next available message.
  • This distributes the workload automatically.

All lessons in this course

  1. Competing Consumers Pattern
  2. Prefetch Count (QoS)
  3. Exclusive Consumers & Consumer Priority
  4. Single Active Consumer
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