Vertical scaling jisme hum basic fix karenge: Keep the event loop non-blocking. Move CPU-heavy work (image processing, crypto, parsing, complex calculations) to worker_threads or external services.
Use horizontal scaling: Put multiple instances behind a load balancer.
Run them as containers (Docker) for consistency.
Use an orchestrator for auto-scaling:
Kubernetes
A common mistake: teams jump straight to Kubernetes before fixing an event-loop-blocking bug or adding basic caching — often the cheap fixes (caching, avoiding sync calls, connection pooling) get you further than infrastructure scaling alone.
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