How can I implement clustering in my Express.js application?

How can I implement clustering in my Express.js application?

You can use the built-in cluster module in Node.js to create multiple instances of your Express app. This allows you to take advantage of multi-core systems.

Can you show me a basic example of how to set this up?

Sure! First, require the cluster and http modules. Then, check if the process is a master or worker. If it's a master, fork workers for each CPU core.

What about load balancing? How does that work with clustering?

Load balancing is handled by the operating system. When you cluster your app, incoming requests are distributed among the worker processes.

Are there any performance considerations I should be aware of?

Yes, while clustering can improve performance, be mindful of shared resources and potential bottlenecks, like database connections.