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Merge pull request #13061 from lujun9972/add-MjAxOTAyMDQgRW5qb3kgTmV0ZmxpeC0gWW91IFNob3VsZCBUaGFuayBGcmVlQlNELm1kCg==
选题: 20190204 Enjoy Netflix? You Should Thank FreeBSD
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[#]: collector: (lujun9972)
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[#]: translator: ( )
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[#]: reviewer: ( )
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[#]: publisher: ( )
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[#]: url: ( )
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[#]: subject: (Enjoy Netflix? You Should Thank FreeBSD)
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[#]: via: (https://itsfoss.com/netflix-freebsd-cdn/)
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[#]: author: (Abhishek Prakash https://itsfoss.com/author/abhishek/)
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Enjoy Netflix? You Should Thank FreeBSD
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======
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Netflix is one of the most popular streaming services in the world.
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But you already know that. Don’t you?
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What you probably did not know is that Netflix uses [FreeBSD][1] to deliver its content to you.
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Yes, that’s right. Netflix relies on FreeBSD to build its in-house content delivery network (CDN).
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A [CDN][2] is a group of servers located in various part of the world. It is mainly used to deliver ‘heavy content’ like images and videos to the end-user faster than a centralized server.
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Instead of opting for a commercial CDN service, Netflix has built its own in-house CDN called [Open Connect][3].
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Open Connect utilizes [custom hardware][4], Open Connect Appliance. You can see it in the image below. It can handle 40Gb/s data and has a storage capacity of 248TB.
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![Netflix’s Open Connect Appliance runs FreeBSD][5]
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Netflix provides Open Connect Appliance to qualifying Internet Service Providers (ISP) for free. This way, substantial Netflix traffic gets localized and the ISPs deliver the Netflix content more efficiently.
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This Open Connect Appliance runs on FreeBSD operating system and [almost exclusively runs open source software][6].
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### Open Connect uses FreeBSD “Head”
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![][7]
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You would expect Netflix to use a stable release of FreeBSD for such a critical infrastructure but Netflix tracks the [FreeBSD head/current version][8]. Netflix says that tracking “head” lets them “stay forward-looking and focused on innovation”.
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Here are the benefits Netflix sees of tracking FreeBSD:
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* Quicker feature iteration
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* Quicker access to new FreeBSD features
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* Quicker bug fixes
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* Enables collaboration
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* Minimizes merge conflicts
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* Amortizes merge “cost”
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> Running FreeBSD “head” lets us deliver large amounts of data to our users very efficiently, while maintaining a high velocity of feature development.
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>
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> Netflix
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Remember, even [Google uses Debian][9] testing instead of Debian stable. Perhaps these enterprises prefer the cutting edge features more than anything else.
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Like Google, Netflix also plans to upstream any code they can. This should help FreeBSD and other BSD distributions based on FreeBSD.
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So what does Netflix achieves with FreeBSD? Here are some quick stats:
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> Using FreeBSD and commodity parts, we achieve 90 Gb/s serving TLS-encrypted connections with ~55% CPU on a 16-core 2.6-GHz CPU.
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>
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> Netflix
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If you want to know more about Netflix and FreeBSD, you can refer to [this presentation from FOSDEM][10]. You can also watch the video of the presentation [here][11].
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These days big enterprises rely mostly on Linux for their server infrastructure but Netflix has put their trust in BSD. This is a good thing for BSD community because if an industry leader like Netflix throws its weight behind BSD, others could follow the lead. What do you think?
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--------------------------------------------------------------------------------
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via: https://itsfoss.com/netflix-freebsd-cdn/
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作者：[Abhishek Prakash][a]
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选题：[lujun9972][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://itsfoss.com/author/abhishek/
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[b]: https://github.com/lujun9972
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[1]: https://www.freebsd.org/
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[2]: https://www.cloudflare.com/learning/cdn/what-is-a-cdn/
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[3]: https://openconnect.netflix.com/en/
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[4]: https://openconnect.netflix.com/en/hardware/
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[5]: https://i2.wp.com/itsfoss.com/wp-content/uploads/2019/02/netflix-open-connect-appliance.jpeg?fit=800%2C533&ssl=1
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[6]: https://openconnect.netflix.com/en/software/
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[7]: https://i0.wp.com/itsfoss.com/wp-content/uploads/2019/02/netflix-freebsd.png?resize=800%2C450&ssl=1
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[8]: https://www.bsdnow.tv/tutorials/stable-current
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[9]: https://itsfoss.com/goobuntu-glinux-google/
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[10]: https://fosdem.org/2019/schedule/event/netflix_freebsd/attachments/slides/3103/export/events/attachments/netflix_freebsd/slides/3103/FOSDEM_2019_Netflix_and_FreeBSD.pdf
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[11]: http://mirror.onet.pl/pub/mirrors/video.fosdem.org/2019/Janson/netflix_freebsd.webm
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