DevOps
Intermediate
What is Message Queue?
A communication mechanism that enables asynchronous message passing between services, decoupling producers from consumers.
Message queues store messages until consumers process them, enabling asynchronous communication. Producers send messages without waiting for consumers, improving system resilience and scalability. If a consumer is down, messages queue up and are processed later.
Popular systems include RabbitMQ (traditional messaging), Apache Kafka (event streaming), AWS SQS (managed queue), and Redis Streams. Use cases include order processing, email sending, log processing, and event-driven architectures.
