Building resilient real-time systems with WebSockets and Redis

Short summary

A technical deep dive into using WebSockets and Redis together to build resilient, scalable real-time systems. WebSockets provide persistent full-duplex communication but struggle with horizontal scaling and fault tolerance. Redis solves this via Pub/Sub for cross-server message broadcasting, atomic operations for state management, and Sentinel/Cluster for high availability.

• •WebSockets enable low-latency bidirectional communication but don't scale horizontally on their own
• •Redis Pub/Sub decouples message producers from consumers, enabling multi-server WebSocket scaling
• •Redis atomic operations, persistence, and clustering round out a robust real-time architecture

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