Node Cluster Setup

A guide to scaling Node.js applications across multiple CPU cores using clustering for improved throughput.

Usage

Ask about Node.js clustering, PM2 cluster mode, load balancing, or multi-core utilization.

Examples

• "Set up PM2 cluster mode for a Node.js app"
• "How do I implement graceful shutdown in cluster mode?"
• "Handle WebSocket sticky sessions with clustering"

Guidelines

• Use PM2 cluster mode for production deployments
• Implement graceful shutdown handling for zero-downtime restarts
• Use sticky sessions when WebSockets or sessions are needed
• Set worker count to CPU core count for optimal utilization
• Avoid sharing in-memory state between workers