Scale a Node.js API on One Machine with Cluster
Use Node.js Cluster to distribute traffic across CPU cores on a single server without external load balancers.
ReadMeFeed / Community knowledge
Real questions. Useful conversations. Find the people who know your stack.
Use Node.js Cluster to distribute traffic across CPU cores on a single server without external load balancers.
Guide to deploying OpenStack Nova Cells v2 for multi‑cell compute scaling, including prerequisites, cell creation, service mapping, validation steps, and recovery options.
Learn how to choose between PM2 Fork Mode and Cluster Mode for Node.js apps, see trade‑offs, and validate your scaling setup with ecosystem.config.js and pm2 commands.
Stop wasting CPU cores. Learn how to use PM2 Cluster Mode to scale Node.js applications across all available hardware with zero-downtime reloads.
A step‑by‑step diagnostic guide to identify and resolve high latency, throttling, and hot‑partition problems in DynamoDB tables, whether running in Provisioned or On‑Demand capacity.
Learn how to implement Discord.js ShardingManager to scale bots across multiple CPU cores, manage distributed state with Redis, and avoid common memory isolation pitfalls.
Learn how Memcached clients using consistent hashing limit key movement during cluster scaling, reducing cache miss storms and keeping traffic stable.
Learn how to scale Node.js applications using PM2 Cluster Mode to utilize multi-core CPUs, enable zero-downtime reloads, and manage stateless scaling via an ecosystem config.
PM2 Cluster Mode lets Node.js use all CPU cores by forking workers that share a port. This architecture note covers the minimal design, data boundaries, operational checks, failure modes, and when to move beyond it.