通过分类缓存未命中提升内容交付效率
[
[
By Vipul Marlecha, Lara Deek, Thiara Ortiz
由 Vipul Marlecha, Lara Deek, Thiara Ortiz 提供
The mission of Open Connect, our dedicated content delivery network (CDN), is to deliver the best quality of experience (QoE) to our members. By localizing our Open Connect Appliances (OCAs), we bring Netflix content closer to the end user. This is achieved through close partnerships with internet service providers (ISPs) worldwide. Our ability to efficiently localize traffic, known as Content Delivery Efficiency, is a critical component of Open Connect’s service.
的使命是 Open Connect，我们专用的内容交付网络（CDN），是为我们的会员提供最佳的体验质量（QoE）。通过本地化我们的Open Connect Appliances（OCAs），我们将Netflix内容更接近最终用户。这是通过与全球互联网服务提供商（ISPs）的紧密合作实现的。我们高效本地化流量的能力，称为内容交付效率，是Open Connect服务的关键组成部分。
In this post, we discuss one of the frameworks we use to evaluate our efficiency and identify sources of inefficiencies. Specifically, we classify the causes of traffic not being served from local servers, a phenomenon that we refer to as cache misses.
在这篇文章中，我们讨论了我们用来评估效率和识别低效来源的框架之一。具体来说，我们将未从本地服务器提供的流量的原因分类，这种现象我们称之为缓存未命中。
Why does Netflix have the Open Connect Program?
为什么Netflix有Open Connect计划？
The Open Connect Program is a cornerstone of Netflix’s commitment to delivering unparalleled QoE for our customers. By localizing traffic delivery from Open Connect servers at IX or ISP sites, we significantly enhance the speed and reliability of content delivery. The inherent latencies of data traveling across physical links, compounded by Internet infrastructure components like routers and network stacks, can disrupt a seamless viewing experience. Delays in video start times, reduced initial video quality, and the frustrating occurrence of buffering lead to an overall reduction in customer QoE. Open Connect empowers Netflix to maintain hyper-efficie...