14 lines
568 B
Markdown
14 lines
568 B
Markdown
# The Calculus of Service Availability
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- **期号**: SRE Weekly Issue #73（2017-05-21）
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- **作者**: —
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- **链接**: http://queue.acm.org/detail.cfm?id=3096459
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## 简介
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As the title suggest, this ACM Queue article goes into some depth on the kinds of calculations one might make when designing a reliable system. Specifically, they focus on service dependencies and introduce Google’s “rule of the extra 9”: a dependency should have one more nine of reliability than the thing that critically depends on it.
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## 正文
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> ⚠️ 抓取失败：HTTP 403
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