nexus/sreweekly/markdown/67/03-fault-tolerance-in-a-high-volume-distributed-system.md

Fault Tolerance in a High Volume, Distributed System

• 期号: SRE Weekly Issue #67（2017-04-09）
• 作者: —
• 链接: http://techblog.netflix.com/2012/02/fault-tolerance-in-high-volume.html

简介

A danger of a microservice architecture is that one failing service can affect those that depend on it, even indirectly. The Netflix API handles over 10000 requests per second, and it was carefully designed to avoid the case where a slow dependency breaks unrelated requests.

Without taking steps to ensure fault tolerance, 30 dependencies each with 99.99% uptime would result in 2+ hours downtime/month (99.99% * 30 = 99.7% uptime = 2+ hours in a month).

正文

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