Question

how to detect memory leak in nodejs?

I'm facing performance issues and suspect a memory leak in my Node.js application. Can someone guide me on how to detect and fix memory leaks?

Answer 1

Monitor Memory Usage: Use process.memoryUsage() to track heap memory.

Chrome DevTools: Run with node --inspect and analyze the "Heap Snapshot" in Chrome.

Use clinic: Install and run:

npm install -g clinic

clinic doctor -- node app.js

-            Heap Dumps: Use heapdump to capture snapshots for analysis.

-            Event-based Detection: Use memwatch-next to detect leaks:

memwatch.on('leak', (info) => console.error('Leak:', info));