How to Detect and Fix Node.js Memory Leaks in Production (Step-by-Step Guide)

<blockquote> <p>"A aplicação caiu de madrugada. O heap estava em 3 GB. Ninguém sabia por quê."<br /><br /> Essa frase é mais comum do que deveria ser.</p> </blockquote> <p>Memory

<p><em>Originally published at <a href="https://xabierlameiro.com/blog/nextjs/nextjs-memory-leak-in-production" rel="noopener noreferrer">xabierlameiro.com</a>.</em></p> <p>If

<p>If you run Puppeteer in production long enough, you eventually meet the same graph: resident memory climbing steadily over hours, flat under test, until a container hits its

<p>Memory leaks in JavaScript don't announce themselves with an error. They show up as a heap that grows by 20MB per minute — invisible in a five-minute Lighthouse run, fatal in a

<h2> Project Overview </h2> <p>The project is a personal high-throughput e-commerce storefront API built with <strong>Next.js Server-Side Rendering (SSR)</strong> and

<p>Every developer has the <code>console.log</code> habit. It works—until it doesn't. When a bug is hiding in a 500ms async chain, behind a third-party callback, or inside a

<h1> The Node.js Production Readiness Checklist: 47 Things Engineers Miss Before Shipping </h1> <p>There's a chasm between "it works on my machine" and "it works in production."

<p>The scenario is hauntingly familiar to any backend engineer: you deploy a fleet of Headless Chrome instances to handle PDF generation, web scraping, or automated testing. On