nexus/sreweekly/markdown/41/05-zuul-2-the-netflix-journey-to-asynchronous-non-blocking-systems.md

Zuul 2: The Netflix Journey to Asynchronous, Non-Blocking Systems

• 期号: SRE Weekly Issue #41（2016-09-25）
• 作者: —
• 链接: http://techblog.netflix.com/2016/09/zuul-2-netflix-journey-to-asynchronous.html

简介

Netflix documents the new version of their frontend gateway system, Zuul 2. They moved from blocking IO to async, which allows them to handle persistent connections from clients and better withstand retry storms and other spikes.

The advantages of async systems sound glorious, but the above benefits come at a cost to operations. […] It is difficult to follow a request as events and callbacks are processed, and the tools to help with debugging this are sorely lacking in this area.

正文

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