Tag Archives: netflix

所以 Netflix 也往 Google Cloud Platform 嘗試了...

看到「Netflix Security Monkey on Google Cloud Platform」這則消息,看起來 Netflix 也往 Google Cloud Platform 在嘗試了。 Netflix Security Monkey 本來是對 AWS 分析,現在則是開始支援 GCP (雖然還在 beta): Security Monkey monitors policy changes and alerts on insecure configurations in an AWS account. While Security Monkey’s main … Continue reading

Posted in Cloud, Computer, GCP, Murmuring, Network | Tagged , , , , , , , , , , | Leave a comment

YouTube 開始與內容商合作,推出 YouTube TV 服務

YouTube 推出 YouTube TV 服務:「Finally, live TV made for you」。 直接打了幾個大頻道,尤其是運動類的頻道: Live TV streaming from ABC, CBS, FOX, NBC, ESPN, regional sports networks and dozens of popular cable networks. 比較完整的頻道資訊可以參考這張: 可以錄影: A cloud DVR, with no storage limits. 跨電腦、平板與手機: A … Continue reading

Posted in Computer, Murmuring, Network, Recreation, Social, Sport, Television | Tagged , , , , , | Leave a comment

服務當掉後的偵測

CNN 這篇「Netflix goes down. Twitter blows up」提到了昨天 Netflix 當了好幾個小時的情況。裡面提到了 Down Detector 這個服務: Downdetector -- which monitors outage complaints online -- reported more than 13,000 posts from users all over the world Saturday afternoon. 到 Down Detector 網站上看,這個服務有一部份是從 social network 上挖資料: … Continue reading

Posted in Computer, Murmuring, Network, Social | Tagged , , , , , , , , | Leave a comment

Netflix 的 Open Connect 架構

在「研究人员绘制Netflix CDN服务器位置图」這邊看到在討論 Netflix 的 Open Connect 架構,也就是 Netflix 自己的 CDN 架構。引用的論文是「Open Connect Everywhere: A Glimpse at the Internet Ecosystem through the Lens of the Netflix CDN」這篇。 翻了一下論文,看起來還是頗傳統的方法,從一堆伺服器去 query 找出來: Indeed, Netflix server domain names are too specific, i.e., including details … Continue reading

Posted in CDN, Cloud, Computer, DNS, Network, Security, WWW | Tagged , , , | Leave a comment

Netflix 開發的 Delayed Queue

原來這個叫做 Delayed Queue,難怪之前用其他關鍵字都找不到什麼資料... (就不講其他關鍵字了 XD) Netflix 發表了他們自己所開發的 Delayed Queue:「Distributed delay queues based on Dynomite」。 本來的架構是用 Cassandra + Zookeeper 來做: Traditionally, we have been using a Cassandra based queue recipe along with Zookeeper for distributed locks, since Cassandra is the de … Continue reading

Posted in Computer, Murmuring, Network, Programming, Software | Tagged , , , , , , , , , , , , | Leave a comment

Netflix 對 sendfile() 在 TLS 情況下的加速

Netflix 對於寫了一篇關於隱私保護的技術細節:「Protecting Netflix Viewing Privacy at Scale」。 其中講到 2012 年的 Netflix Open Connect 中的 Open Connect Appliance (OCA,放伺服器到 ISP 機房的計畫) 只有單台伺服器 8Gbps,到現在 2016 可以達到 90Gbps: As we mentioned in a recent company blog post, since the beginning of the Open … Continue reading

Posted in Computer, FreeBSD, Hardware, Movie, Murmuring, Network, OS, Programming, Recreation, Security, Software, Television, WWW | Tagged , , , , , , , , , , , , , , , , , , , , , , , | 1 Comment

Netflix 把金流相關的系統轉移到 AWS 上跑 MySQL 的故事...

這次要提的是「Netflix Billing Migration to AWS」、「Netflix Billing Migration to AWS - Part II」與「Netflix Billing Migration to AWS - Part III」這三篇。 Netflix 先前的金流相關系統跑的是 Oracle 的資料庫: 然後換成 MySQL: 系統上是採用 DRBD,然後底層是 5 個 4TB 的 EBS 組成的 RAID 0,跑 LVM: High performance with respect … Continue reading

Posted in AWS, Cloud, Computer, Database, Financial, Murmuring, MySQL, Network, Software | Tagged , , , , , , , , , , , , , , | Leave a comment

Netflix 評估影片品質的方法

Netflix 在發了一篇很長的文章,說明怎麼評估 video quality:「Toward A Practical Perceptual Video Quality Metric」,文章雖然有點長,但其實還蠻好懂的... 講的白話一點,Netflix 想要做各種壓縮方式的改善,但在超大的量的情況下 (scale) 缺乏自動化打分數的機制: All of the challenging work described above hinges on one fundamental premise: that we can accurately and efficiently measure the perceptual quality of a video stream … Continue reading

Posted in Computer, Murmuring | Tagged , , , , , , , , , , | Leave a comment

用瀏覽器看 Netflix 加速播放

前陣子開始用 Netflix 看流言終結者,但以往看動畫已經習慣至少兩倍速了,舊址好找看看電腦上有沒有方案可以加速。 還頗幸運的是,早就有人把方法找出來了:「Netflix streaming playback speed and hidden menus」。 Netflix 在 Google Chrome 上面用 HTML5 player,而就有 extension 可以對 HTML5 player 加速:「Video Speed Controller」。 這樣消化影片的速度就快多了 :p

Posted in Browser, Computer, GoogleChrome, Murmuring, Network, Recreation, Software, Television, WWW | Tagged , , , , , , , , , | Leave a comment

Netflix 的全雲端化

Netflix 宣佈關閉最後一個非雲端的資料中心:「Completing the Netflix Cloud Migration」。 We are happy to report that in early January, 2016, after seven years of diligent effort, we have finally completed our cloud migration and shut down the last remaining data center bits used by … Continue reading

Posted in AWS, Cloud, Computer, Murmuring, Network | Tagged , , , , , , | Leave a comment