Node.js Cluster Module Not Balancing Load Across Workers as Expected
I'm using the Node.js cluster module to improve the performance of my application, which is running on Node.js v18.0.0. However, I'm noticing that the load is not being balanced evenly across the worker processes. When I run a simple HTTP server using the following code, it seems that one worker is handling most of the incoming requests while others remain idle: ```javascript const cluster = require('cluster'); const http = require('http'); const numCPUs = require('os').cpus().length; if (cluster.isMaster) { console.log(`Master ${process.pid} is running`); for (let i = 0; i < numCPUs; i++) { cluster.fork(); } cluster.on('exit', (worker, code, signal) => { console.log(`Worker ${worker.process.pid} died`); }); } else { http.createServer((req, res) => { res.writeHead(200); res.end('Hello World\n'); }).listen(8000); console.log(`Worker ${process.pid} started`); } ``` I've tried increasing the number of requests sent to the server using a load testing tool like Apache Benchmark, yet I can see that worker 1 consistently handles over 80% of the requests while others remain at 0 or a few requests. I’ve also checked the CPU usage, and it appears that the first worker is maxing out while others are barely utilized. Is there something specific that I'm missing in terms of configuration or usage of the cluster module? Should I be using a different approach for load balancing in Node.js, like a reverse proxy with Nginx? Any insights would be appreciated!