Clustering

Summary

Node's built-in module for spawning multiple worker processes that share the same server port, letting a single-threaded runtime take advantage of multi-core machines.

How to Learn This

1Set up a basic cluster that forks one worker per CPU core.
2Learn how the cluster module load-balances incoming connections across workers.
3Compare clustering to using a process manager like PM2's built-in cluster mode.

Child Processes

CLI Tool

More topics in Node.js Fundamentals

Node.js Runtime V8 Engine Event Loop Non-Blocking I/O Modules (CommonJS vs ESM)NPM & Package Management package.json Async Programming Callbacks Promises Async/Await Streams Buffers File System (fs)Process & Environment Variables Event Emitter Child Processes

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