# The Netflix Tech Blog: Automated Failure Testing

- **期号**: SRE Weekly Issue #7（2016-01-24）
- **作者**: —
- **链接**: http://techblog.netflix.com/2016/01/automated-failure-testing.html?m=1

## 简介

Netflix has taken the Chaos Monkey to the next level.  Now their automated system investigates the services a given request touches and injects artificial failures in various dependencies to see if they cause end-user errors.  It takes a lot of guts to decide that purposefully introducing user-facing failures is the best way to ultimately improve reliability.

> …we’re actually impacting 500 members requests in a day, some of which are further mitigated by retries. When you’re serving billions of requests each day, the impact of these experiments is very small.

## 正文

> ⚠️ 抓取失败：HTTP 403