Glossary term
What is Competing consumers? Meaning for developers
Many workers share one queue; each message goes to one worker. Example: 5 email workers processing one queue.
Learn it properly · System DesignLesson 18: Message Queues: A Gentle IntroductionPlacing an order shouldn't wait on the email provider — or fail because SMS is down. How message queues let you do the essential work now and everything else reliably a moment later, with acks, retries, dead-letter queues and back pressure.