3 Serverless Compute Traps That Break Peace of Mind and How to Fix Them
Serverless computing promises simplicity: no servers to manage, automatic scaling, and pay-per-use billing. Yet many teams find that the initial peace of mind fades as they encounter unexpected traps. Cold starts slow down user experiences, runaway costs appear on monthly bills, and migrating away from a provider becomes a nightmare. This guide, reflecting practices as of May 2026, walks through three common traps and how to fix them before they break your project.1. The Cold Start Trap: When 'Always On' Isn'tServerless functions are designed to scale to zero when idle, which means the first request after a period of inactivity may suffer a cold start—a delay while the runtime initializes. For user-facing applications, even a 500-millisecond delay can degrade experience. Many teams assume this is a minor issue, but in practice, it can break real-time features like chat or dashboards.Why Cold Starts HappenWhen a function hasn't been invoked for a