Message Queues
Asynchronous event channels decoupling high-speed producers from slow-processing consumer pools.
What you'll learn
- Producer
- Consumer
- Queue
- Acknowledgment
TL;DR
Asynchronous event channels decoupling high-speed producers from slow-processing consumer pools.
Visual System Topology
Asynchronous Message Queuing
Concept Overview
Message queues enable asynchronous communication between services. Instead of direct service-to-service calls, services publish messages to a queue, and consumers process them when ready.
This decouples services, improves reliability, and enables scaling of producers and consumers independently.
Key Architectural Pillars
Producer
Service that sends messages to the queue. Doesn't wait for processing.
Consumer
Service that reads and processes messages from the queue.
Queue
Stores messages until consumed. First-In-First-Out (FIFO) or priority-based.
Acknowledgment
Consumer tells queue "I processed this message successfully" so queue can delete it.