Nginx invalid sampling parameter error during high traffic
Problem Description During a traffic surge on a high‑volume API gateway powered by Nginx Plus, the following symptoms were observed: Intermittent 502 Bad Gateway responses. HTTP 500 payloads containing the phrase invalid sampling parameter. NGINX error log entries such as: 2024/01/15 10:23:41 [error] 1123#1123: *4567 configuration file /etc/nginx/conf.d/api.conf test failed: invalid sampling_rate 1.5, allowed range is … Read more