Efficient Ops

May 15, 2022 · Cloud Native

Why POST Requests Get 502 After PaaS Migration – Nginx, Ingress & uWSGI Explained

After moving an application to a PaaS platform, intermittent 502 errors appear mainly on POST requests; the article analyzes Nginx retry behavior, Ingress‑uwsgi protocol mismatches, packet‑capture findings, and provides a configuration fix to resolve the issue.