Youtube
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YouTube saw a sharp increase in internet traffic from 2010-2020 due to rising video streaming. Before being acquired by Google, YouTube had limited infrastructure with only 7 video servers and 3 web servers, relying on a CDN to distribute videos. After the acquisition, Google significantly expanded YouTube's infrastructure using their network of edge servers and caches globally. This improved video delivery speeds and quality of service. Quality of service on YouTube is evaluated based on content, system performance, user experience, and environmental context levels to optimize the viewing experience.
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- 1. LUQMAN BIN TALIB Mohd azri bin mat raffei Ahmad syafiq bin ahmad dzaki
- 2. INTRODUCTION Internet traffic from social network media are sharply increase, this included video streaming. Video streaming such as YouTube and Netflix has consume 40 % of internet traffic at 2010. More than 13 MILLION HOURS, 2010 More than 35 HOURS, every minute. More video is uploaded to YouTube in 60 days than the 3 major US networks created in 60 years. YouTube reached over 700 billion playbacks in 2010. YouTube mobile gets over 100 million views a day.
- 3. INTRODUCTION Internet Traffic 60% 40% INTERNET Video Streaming Others 70% 30% YOUTUBE In US Out US
- 4. LITERATURE REVIEW Research Question: What are the improvement done by Google on YouTube delivery basis after the take over? Purpose: To compare and contrast the efficiency of video delivery basis and network infrastructure of YouTube before and after Google take over. Review on literature will show the rough idea how was YouTube before and after google take over. YouTube before google 3 logical web servers 7 video server Use LimeLight CDN to support the distribution of video YouTube after Google. How Google engineers re-design YouTube? Googles huge infrastructure including globally distributed edge servers & caches and Googles engineering talents Enormous scale -- both in terms of videos and users Google redesign in video delivery dynamics hot and cold videos, cache misses, etc. load-balancing among cache locations, servers, etc. relations with ISPs
- 5. CURRENT ISSUES ON YOUTUBE Video are shortened. Videos dont play on Internet Explorer Subscription not updating Unable to view age restricted videos despite being over 18. Subscription limit Cant reply or like/dislike some comments UPLOAD PLAY LOG IN SHARING
- 6. EXISTING COMMERCIAL APPLICATIONS 1. www.metacafe.com 2. www.dailymotion.com 3. www.liveleak.com 4. www.vimeo.com
- 7. NETWORK INFRASTRUCTURE (BEFORE GOOGLE TAKEOVER) Before google take over YouTube only has 7 Video Servers 3 Logical Web server Use limelight CDN to help the distribution of video YouTube was paying $1 million/month or more to ISPs to carry its video traffic to users! Front-end Server Internet Video Servers Users 1 2 3 4 1. HTTP GET request for video URL 2. HTTP reply containing html to construct the web page and a link to stream the FLV file 3. HTTP GET request for FLV stream 4. HTTP reply FLV stream
- 8. NETWORK INFRASTRUCTURE (AFTER GOOGLE TAKEOVER)
- 9. NETWORK INFRASTRUCTURE (AFTER GOOGLE TAKEOVER) Schema of YouTube new page download
- 10. QUALITY OF SERVICE ISSUES Content Level Addresses the video codec, format, resolution, and also duration, contents of the video, type of video and its motion patterns. System Level Cover influences of the transmission network, the devices and screens, but also of the implementation of the application itself like video buffering strategies.
- 11. QUALITY OF SERVICE ISSUES System Level Cover influences of the transmission network, the devices and screens, but also of the implementation of the application itself like video buffering strategies. Context Level Considers aspects like the environment where the user is consuming the service, the social and cultural background, or the purpose of using the service.
- 12. COMPARITIVE ANALYSIS ON COMMERCIAL APPLICATIONS 62% 20% 18% Internet Traffic YouTube DailyMotion Vimeo
- 13. SUMMARY Theres a lot of client server video streaming application on the internet, but YouTube still emerge on the top, this is because YouTube provide ability to customize, unlimited channel subscription and various video quality. YouTube has gone a lot of improvement after google took over whether in network infrastructure, traffic rate, content management and usability. Quality of services (QoS) issue are emphasized issue in YouTube. It can be proven by the way YouTube divided the QoS issue into four level that is, context level, user level, system level and content level. This is to ensure the user satisfied with the services provided and having a great experiences while browsing or streaming video on YouTube.