Netflix API网关Zuul如何做到每秒处理两百万请求



嘉宾 : Susheel Aroskar | Netflix Senior Software Engineer

会议室 : 二层 201


专题演讲嘉宾:Susheel Aroskar

Netflix Senior Software Engineer

Susheel works as a senior software engineer on the Cloud Gateway team at Netflix, which develops and operates Zuul - an API gateway that fronts all of the Netflix cloud traffic and handles more than 100 billion requests a day. Prior to Zuul, Susheel worked on Netflix CDN's control plane in the cloud, which is responsible for steering more than a third of all North American peak evening internet traffic.

He joined Netflix just as Netflix was taking its first steps towards migrating from datacenter to cloud and he still has scars from those early days to prove it. He lives in California with his wife and daughter, both of whom find her dad jokes intolerable.


地点:二层 201

演讲:Netflix API网关Zuul如何做到每秒处理两百万请求

Zuul - Netflix API Gateway that handles 2M requests per second

How do we effectively route 2M requests per second to hundreds of backend services? How do we protect those backend services from constant DDoS attacks and retry storms? How do we keep Netflix humming along when an Amazon Web Services outage takes an entire AWS region out?

Meet Zuul - Netflix's swiss army knife for application networking. Zuul is Netflix's API gateway, load balancer, reverse proxy and more. It fronts all of the API traffic entering Netflix cloud and routes it to many backend services. It shields these backend services from retry storms, DDoS attacks and other outages shifting traffic across AWS regions, if necessary. It load balances millions of requests per second across thousands of machines, routing them intelligently and automatically around faulty instances.

In addition to this mission critical role in live production, Zuul is also invaluable during development and test to debug, canary and load test new features. Zuul lets us define new routing rules dynamically at run time that take effect near instantly without any deployments or restarts. This capability to slice, dice and change route for a portion of traffic quickly lets Zuul do all sort of tricks like canary / load testing, surgical traffic debugging for a single customer / device, black-holing malicious traffic etc.

At its heart, Zuul is a high performance, non blocking reverse proxy and layer 7 load balancer built on top of Netty. It supports multiple protocols including HTTP 1.0, HTTP 1.1, HTTP/2, WebSockets and Server Sent Events. It also offers flexible, configurable transport layer security including TLS, mTLS and application layer security like Netflix specific security protocols like MSL.

We will cover:

  • Zuul concept - where Zuul fits in overall Netflix architecture.
  • Zuul design -  Architecture of Zuul and its fundamental components.
  • Zuul operation - How we operate 80+ Zuul clusters to proxy traffic to hundreds of backends
  • Zuul future - where are we going next with Zuul





从本质上讲,Zuul构建于Netty之上,是一个高性能,无阻塞的反向代理和7层负载均衡器。它支持多种协议,包括HTTP 1.0,HTTP 1.1,HTTP / 2,WebSockets和Server Sent Events。还提供灵活可配置的传输层安全性,包括TLS,mTLS和应用层安全性,如Netflix特定的安全协议MSL。


  • Zuul概念 -  Zuul适合整体Netflix的架构
  • Zuul设计 -  Zuul架构及其基本组成部分
  • Zuul运维 - 我们如何运维80多个Zuul集群来代理数百个后端的流量
  • Zuul未来 - Zuul的下一步打算