ライブ視聴を支える配信基盤の話をざっくりと / livestreaming-dogenzakabeerbash
by
Taro Hirose
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ϥΠϒࢹௌΛࢧ͑Δ ৴ج൫ͷΛ ͬ͘͟Γͱ
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ࣗݾհ ኍ ଠ @ CyberZ ▸ OPENRECࣄۀ෦ ▸ Πϯϑϥ & αʔόαΠυΤϯδχΞ ▸ લ৬: IT Consulting Firm / SIer ▸ ಘҙྖҬ: ߏཧ/ࣗಈԽ, ࢹ ▸ Twitter: @uorat ▸ Blog: http://uorat.hatenablog.com/
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OPENREC.tv ήʔϜʹಛԽͨ͠ಈը৴αʔϏε https://www.openrec.tv/ ϓϨΠಈըͷߘɺϥΠϒ৴ / ॴҦe-sportsࢢ 3
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OPENREC.tv ৴ྫ: Shadowverse 4
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ຊͷ༰ ͜ͷ෦ 5
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Live Streaming ಈը৴ج൫
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ϥΠϒ৴ͷجຊ ετϦʔϛϯά৴ ▸ ϑΝΠϧͷμϯϩʔυΛඇಉظͰ ߦ͍ͳ͕Βɺಈըͷ࠶ੜΛߦ͏ ▸ ܰྔͳϑΝΠϧΛ৴͢Δ͜ͱͰɺ࠶ੜ· ͰͷͪΛ͘͢Δ ▸ ΦϯσϚϯυϥΠϒجຊతʹετϦʔ ϛϯάͰ৴͢Δͷ͕σϑΝΫτ ▸ ख๏ʢϓϩτίϧʣ৭ʑ ▸ ϥΠϒ৴ͷ؊ ▸ มͱ৴ʹཁ͢Δ࣌ؒͷॖ ▸ ෛՙରࡦ
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ϥΠϒ৴ͷجຊ RTMP ▸ AdobeʹΑΓ։ൃ͞ΕͨFlash Video༻ͷετϦʔϛϯάϓϩτ ίϧ ▸ ࣋ଓଓͰಈըσʔλΛ৴͢Δ ͨΊɺҰൠతʹEdgeΛେྔʹ ༻ҙ͢Δඞཁ͕͋Δ ▸ Statelessͳ௨৴Ͱͳ͍ͨΊ৴ଆ ͷScaling͕େมɺඅ༻͔͔Δ ▸ ࠶ੜʹFlash Player͕ඞཁ
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ϥΠϒ৴ͷجຊ HLS (HTTP Live Streaming) ▸ AppleʹΑΓ։ൃ͞ΕͨHTTP ϕʔεͷετϦʔϛϯάϓϩτ ίϧ ▸ ಈըσʔλΛඵʙॏඵͷϑΝ Πϧʹׂ͠ஞ࣍Download͠ ͯ࠶ੜ͢Δ ▸ HTTPͷԸܙΛڗडͰ͖Δ ▸ ಛघͳPlayerෆཁ ▸ Caching͍͢͠ ▸ Scaling͍͢͠
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ϥΠϒ৴ͷجຊ HLSͳϥΠϒ৴γεςϜྫ ▸ ਤΛషΓ͚Δ
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Live Streaming ߏհ
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͏ͪͷετϦʔϛϯάᶃ CloudFront + Wowza Streaming Engine + ElasticTranscoder ▸ ਤΛషΓ͚Δ
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͏ͪͷετϦʔϛϯάᶃ ϙΠϯτ: ʮ͋͑ͯʯAWSʹ࠷దԽ ▸ CloudFrontʹΑΔHLS৴ͷলΤωԽ ▸ CacheઓུʹΑΔOriginαʔόͷෛՙݮ ▸ EC2 + CloudFrontͷΈ߹ΘͤʹΑΔԸܙ ▸ CDN Edge - OriginؒͷLatency࠷খԽ ▸ Origin → CDN Edgeؒͷσʔλసૹૹ৴ྉ Free ▸ GPUΠϯελϯεͷ׆༻ ▸ EC2 API ʹΑΔෛՙʹԠ֦ͨ͡ுॖୀ੍ޚ
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Messaging νϟοτ
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νϟοτͷجຊ ۭؒڞ༗ ▸ ؍ઓ࣌ͷྟײΛΦϯϥΠϯͰମݧ ▸ ྫ: RAGE ▸ ίϛϡχέʔγϣϯखஈ ▸ ϓϨΠϠʔɿࢹௌऀ ▸ ࢹௌऀɿࢹௌऀ ▸ ྫ: ϚΠϯΫϥϑτ ग़య: http://tappli.org/column-detail.php?id=1166
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νϟοτͷجຊ ࣄྫ: Minecraft
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νϟοτͷجຊ ϦΞϧλΠϜϝοηʔδ৴ج൫ ▸ ϦΞϧλΠϜ ▸ Ԇ = e-sportsಛ༗ͷྟײΛڞ༗Ͱ͖ͳ͍ ▸ ৴ऀɿࢹௌऀؒͷରखஈͰ͋Δ ▸ શࢹௌऀʹରͯ͠Ұ੪ʹϝοηʔδ৴͢Δඞཁ͋Γ ▸ ߴ֦ுੑ ▸ ಉ࣌ࢹௌऀ͕૿͑ͯεέʔϧΞτͰ͖Δ ▸ ਓؾ৴ສਓҎ্ͷϢʔβ͕ࢹௌ͢Δ ▸ ෳ৴͋Γɺ৴ʹूத͢Δ ▸ ࢹௌऀ͕ेສ, ඦສਓͱ૿͑ͯϝοηʔδ৴ʹࢧো Λ͖ͨ͞ͳ͍͜ͱ
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ࠓ 2िؒͰ࡞ͬͨνϟοτج൫ ▸ Node.js + Socket.IOϕʔεͷ WebSocketΞϓϦέʔγϣϯ ▸ MessageHubʹRedis (Pub/Sub) ▸ ELB(Classic) ͕WebSocketඇରԠͷ ͨΊɺΞϓϦέʔγϣϯଆͰόϥϯ γϯάॲཧ࣮
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ࠓ 2िؒͰ࡞ͬͨνϟοτج൫ ▸ Node.js + Socket.IOϕʔεͷ WebSocketΞϓϦέʔγϣϯ ▸ MessageHubʹRedis (Pub/Sub) ▸ ELB(Classic) ͕WebSocketඇରԠͷ ͨΊɺΞϓϦέʔγϣϯଆͰόϥϯ γϯάॲཧ࣮
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Messaging 改
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͏ͪͷετϦʔϛϯάᶄ ઈࢍϦϓϨʔεத
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͏ͪͷετϦʔϛϯάᶄ ઈࢍϦϓϨʔεத ▸ WebSocketରԠͨ͠ELB - ALBΛಋೖ ▸ ϑϧϚωʔδυʹΑΔӡ༻ෛՙݮΛૂ͏ ▸ Nginx + SerfͰྑ͍Μ͚ͩͲ ▸ Content-Based RoutingΛ׆༻ͨ͠खܰͳγϟʔσΟϯά ▸ ͦͷଞॾʑͷϝεೖΕ ▸ Node.js / Socket.IO version up ▸ AutoScaling
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Summary ·ͱΊ
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·ͱΊ ϓϥοτϑΥʔϜ࠷దԽ ≠ ϩοΫΠϯ ▸ ʮ͋͑ͯʯͦ͜ʹ࠷దԽ͢Δ͜ͱͰੜ·ΕΔϝϦοτ͋Δ ▸ අ༻ ▸ ӡ༻༰қੑ ▸ ϨΠςϯγ ▸ γϯϓϧ ▸ దࡐదॴͳٕज़࠾ͱઃܭ େࣄ ▸ ϑϧϚωʔδυ or ࣗྗ࣮ ▸ େࣄͳ͜ͱ ϏδωεඪΛୡ͢ΔͨΊͷಓےΛඳ͘͜ͱ ▸ εϐʔυ ▸ ίετ
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ࠂ RAGE vol.3 Shadowverse ▸ ༧બ: 2016/10/22 () - 10/23 () ▸ ܾউ (GRAND FINAL): 2016/11/23 (ਫɾॕ) https://rage-esports.jp/