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I've got to think bandwidth is their largest expenditure... even with all the CDN infrastructure they have in place. AWS bandwidth is extremely expensive - reg

• jonny_eh 8y ago
  Netflix doesn't host any video content on AWS, none. It only serves up their API + site.
  • whoisjuan 8y ago
    Saying that they host none of their video content in AWS it's kind of a stretch. The original video and encoded versions of those videos are probably all hosted in S3. Every Netflix Open Connect Appliance still needs to copy and update its content from somewhere and as far as I know, they do it from S3 which it's ultimately their core data lake. How often and how efficiently they do it is probably unknown, but I can't imagine any other strategy to distribute their video across their appliances network that doesn't involve S3. It's also very unlikely that they are using 'warm' storage to replicate their content across their appliances network since the objects would be retrieved and replicated behind the scenes (no user-facing speed required), so they could be as well using Amazon Glacier to host their content video and just retrieve it slowly at a fraction of S3's cost. You can read more about Netflix Open Connect network and their storage appliances here: https://openconnect.netflix.com/en/ https://openconnect.netflix.com/en/