How WebSockets and Redis Work Together to Build Resilient Real-Time Systems

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Modern real-time applications demand low latency, high availability, and seamless user experiences, making robust architecture essential. WebSockets address this by maintaining persistent, full-duplex TCP connections that eliminate the overhead of repeated HTTP handshakes. Redis complements WebSockets by acting as a distributed state manager and pub/sub broker, allowing messages to reach all connected clients regardless of which server instance they are on. Together, the two technologies enable horizontal scaling, session persistence, and automatic failover through features like Redis Sentinel and Redis Cluster. The approach also incorporates security, load balancing, backpressure management, and client-side reconnection strategies to ensure system resilience.

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ProgrammingDEV Community ·

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ProgrammingHacker News ·

ATG, a YC F25 startup, seeks a Data Platform engineer

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