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Delivering Large Scale WebRTC - Bistri - WebRTC Conference & Expo III - Santa Clara
May 08, 2015
Large Scale WebRTC Panel - WebRTC Conference & Expo III - Santa Clara
While many deployments anticipate large numbers of users, they generally consider the actual WebRTC event to be with a small group of users. Webcasting, gaming, virtual reality, education and a multitude of other applications will require large to very large groups of users to be in actual real-time simultaneously. This session will examine the issues and potential solutions for using WebRTC for these level deployments.
While many deployments anticipate large numbers of users, they generally consider the actual WebRTC event to be with a small group of users. Webcasting, gaming, virtual reality, education and a multitude of other applications will require large to very large groups of users to be in actual real-time simultaneously. This session will examine the issues and potential solutions for using WebRTC for these level deployments.
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Delivering Large Scale WebRTC
Richard TworekPrincipalWebRTC Strategies STRATEGIES
WebRTC
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• Previously CIO France
• Co-founder & CEO
• WebRTC Working Group
Arnaud Budkiewicz
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Large Scale Challenges: client
#1 WebRTC B2C platform, in production since early 2012• Frictionless– Simple: a Permanent link to be reached– Any browser: WebRTC & Flash >> the same UX, features
based on 1 million minutes of video call /month
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Chrome App
• Open: No registration, no need to be friend>> the right signaling protocol: XMPP>> to build a Guest mode>> and Gateways to G+, FB, Y!, VK… with SSO
• Add Full-time Presence to the Web>> Android Native App
Large Scale Challenges: client
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• Cross-platform WebRTC video calls: >> all implementations, all devices– Firefox, Chrome, Chrome OS Devices– Android Mobile Web & Native app, Google Glass
321
from a QRcodeto a video callin a mobile browser
Large Scale Challenges: client
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• Video & Audio Quality, Battery life: Codecs– OPUS & VP8: software– H264
• Firefox started H264 integration• Could help leverage WebRTC
Large Scale Challenges: client• Security– WebRTC flows 256-bit AES encrypted– other communications => HTTPS
– First VP8 devices• Google Nexus 5• Kindle Fire HDX
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• Multi-party WebRTC Conferencing: pushing the limits– 1 permanent link per user: Dedicated signaling– 4 parties video conferencing
• High CPU usage on the client• Mesh network: no MCU
– Chat without Chat server: Data channels– Screen sharing, Chrome only
Large Scale Challenges: client
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Network communications• Flexible, interoperability– REST/JSONWebRTC standard does NOTinclude the signaling
• XMPP over HTTP• LibJingle
92%
• NAT, Firewalls, 3G/4G– WebRTC => STUN/TURN– Flash => RTMP, RTMPT
Large Scale Challenges: net
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Large Scale Challenges: backendServer side• Automated, Scalable, Elastic
Cloud based on AWS EC2• Gateways: make the contact list run fast
1 gateway activated by 1 user get list & presence ALL his contacts
+200 Million contacts => Cache Redis• Geo-localize: to be close to the user
=> DB sharding, TURN clustered
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Large Scale Challenges: APIs• Easy to integrate
WordPress, JS, WidgetsSDK Android
• Flexible– XMPP? => Dedicated signaling– Presence management => Websocket Clustered
• Secure =>Api Token /application, domain locked
• Scalable architecture– Socket.io + Nodejs + Redis + pub/sub + MemCache
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Thank you
«Bistri, the next Skype-killer»
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