Cognitive Technology Team

Sep 22, 2025 · Backend Development

Why /tmp Can Crash Your Spring Boot App and How to Fix It

An e‑commerce Spring Boot service crashed when uploading large files because Linux’s /tmp is a memory‑based tmpfs that fills RAM, causing OOM kills; the article explains the underlying tmpfs behavior, common pitfalls, and a three‑step solution using /var/tmp with proper configuration and permissions.