Message Queues
Message queues are a form of asynchronous service-to-service communication used in distributed systems, where messages are stored in a queue until they are processed by a consumer. They decouple the sender (producer) and receiver (consumer) of messages, allowing systems to handle varying loads and improve reliability by buffering requests. This enables scalable, fault-tolerant architectures by preventing data loss and managing traffic spikes.
Developers should learn and use message queues when building microservices, event-driven architectures, or applications requiring reliable, asynchronous processing, such as order processing in e-commerce or real-time notifications. They are essential for handling high-throughput scenarios, ensuring data consistency across services, and improving system resilience by isolating failures and enabling retry mechanisms.