# How To Get Fooled By Metrics

- **期号**: SRE Weekly Issue #264（2021-04-04）
- **作者**: Dominik Sandjaja — Trivago
- **链接**: https://tech.trivago.com/2020/12/04/how-to-get-fooled-by-metrics/

## 简介

They deployed an optimization that skipped sending some requests to the backend… and the backend metrics got worse. Why? Hint: aggregate metrics.

## 正文

> ⚠️ 抓取失败：trafilatura returned empty