Broadcast server-sent events across Node.js instances using Redis Pub/Sub.
npx skills add https://github.com/vuthuonghai-steve/KLTN --skill sse-scaling
Please help me install this Agent Skill. Skill: sse-scaling Source: https://github.com/vuthuonghai-steve/KLTN/tree/main/.cursor/skills/sse-scaling Command: npx skills add https://github.com/vuthuonghai-steve/KLTN --skill sse-scaling
SSE-based real-time notifications struggle to scale across multiple server instances, causing latency and missed messages during bursts.
Connect your Next.js or Node.js backend to Redis Pub/Sub to broadcast SSE events across instances.
High-intent search queries and answers about installing and using this skill.
Redis Pub/Sub enables cross-instance SSE broadcasting by publishing events to a central channel, which all server instances subscribe to, ensuring reliable fan-out delivery to connected clients.
Redis Pub/Sub provides cross-instance SSE broadcasting by routing messages through a central channel that all instances subscribe to, ensuring consistent fan-out delivery to connected clients.
You can use an in-memory development pattern for local SSE without Redis, but Redis Pub/Sub is required for production to enable cross-instance broadcasting and fan-out delivery.
The fan-out pattern works by having each server instance subscribe to Redis Pub/Sub channels and distribute incoming broadcasted events individually to their connected SSE clients.
Production readiness steps for migrating SSE to Redis Pub/Sub include implementing heartbeats, establishing observability, conducting load testing, and applying safeguards for connection limits and resource usage.
SSE misses messages during traffic bursts in multi-server deployments because independent instances lack shared state, an issue resolved by using Redis Pub/Sub to synchronize and broadcast events across all nodes.
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