How do I set up the Node.js cluster module?

How do I set up the Node.js cluster module?

To set up the Node.js cluster module, you first need to require the 'cluster' module in your application.

Can you show me a basic example of using the cluster module?

Sure! Here's a simple example:

const cluster = require('cluster');
const http = require('http');

if (cluster.isMaster) {
  const numCPUs = require('os').cpus().length;
  for (let i = 0; i < numCPUs; i++) {
    cluster.fork();
  }
} else {
  http.createServer((req, res) => {
    res.writeHead(200);
    res.end('Hello World!');
  }).listen(8000);
}

What are the benefits of using the cluster module?

The cluster module allows you to take advantage of multi-core systems by spawning multiple worker processes, improving performance and reliability.

Are there any downsides to using the cluster module?

Yes, some downsides include increased complexity in managing worker processes and potential issues with shared state between them.