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Ugoku Backend
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Harukasan
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August 02, 2014
Technology
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Ugoku Backend
Ugoku "It's working" Backend
pixiv Ugoira Tech Talks / 2014-08-01
Harukasan
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August 02, 2014
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Transcript
Ugoku backend Ugoira Tech Talks / 2014-08-01 harukasan
• Infrastructure Team in pixiv since 2012 • nginx /
Apache Traffic Server • Fluentd / Kibana / BigQuery • Kosenconf Harukasan / Shunsuke MICHII ! ൃച @harukasan shunsuke.michii
Ugoku Backend ͏͝ΠϥͷཪଆͰ
Works in Ugoira Project • ͏͍͝Βͷ͚ͩͷͨΊʹؾΛݣͬͨ෦ ͦΕ΄Ͳͳ͍ • ಛච͖͢ࣄฑ͋·Γͳ͍…… •
ͲͪΒ͔ͱ͍͏ͱৗʹ͕Μ͍ͬͯΔ͔Μ͡
Ugoku Backend
None
Statistics 3,700,000,000 PV/month 11,000,000 Users 45,000,000 Illustrations |
Statistics 7K peak req/s (dynamic) 30K peak req/s (image) 12Gbps
peak Traffic (image) 3 x 10Gbps backbone 40TB image files 400 servers
Ugoku Backend ͏͝ΠϥͷཪଆͰ
Ugoira Data Flow PHP nginx nginx Apache HTTPd nginx pixiv
Contents Delivery Clusters uploading small light load balancing Store Images generating thumbnails Ý Creator Viewers PHP Redis queing
Ugoira Data Flow PHP nginx nginx Apache HTTPd nginx pixiv
Contents Delivery Clusters uploading small light load balancing Store Images generating thumbnails Ý Creator Viewers PHP Redis queing
Upload System
Upload System • ࠷େ150ຕͷը૾ͷมॲཧΛߦ͏ඞཁ͕͋Δ • ϢʔβʔΛग़དྷΔ͚ͩͨͤͳ͍Α͏ʹ͍ͨ͠
Asynchronous Uploading Upload View Information form View Complete View 1.
ը૾ϑΝΠϧΛ Ξοϓϩʔυ 2. ใೖྗ ◦ ྃΛͭ Redis Uplaod Worker upload αϜωΠϧϚελը૾ੜ Ý upload Ý GIFը૾ׂ active standby 3. Ξοϓϩʔυྃ
Upload System • Ϣʔβʔ͕ใΛೖྗ͍ͯ͠Δؒʹ ը૾ϑΝΠϧΛ४උ • GIFը૾Λׂ Github: pixiv/gifsplit •
͏͝ΠϥͰ3छྨͷը૾Λ༻ҙ • WebDAVͰΞοϓϩʔυ͢Δ PHP nginx Redis php-resque nginx ϩʔυόϥϯα ΞϓϦέʔγϣϯ Ωϡʔ ϫʔΧʔ DAVετϨʔδ
Ugoira Data Flow PHP nginx nginx Apache HTTPd nginx pixiv
Contents Delivery Clusters uploading small light load balancing Store Images generating thumbnails Ý Creator Viewers PHP Redis queing
Dynamic Thumbnail Generation
Dynamic Thumb. Generation • Ξοϓϩʔυ࣌ʹͨ͘͞ΜͷαϜωΠϧΛ ͭ͘Δͷେม • αΠζσβΠϯมߋͱ͔Ͱม͍͑ͨ • ༧ΊϚελը૾Λੜͯͦ͠Ε͔Βੜ͢Δ
ΦϦδφϧը૾ αϜωΠϧϚελը૾ αϜωΠϧը૾
Thumbnail Master • ΞεϖΫτݻఆͱਖ਼ํܗΫϩοϓͷ2छྨ • JPEGը૾ʹม(PNG→JPEGͷมॏ͍) 1200px 1200px 1200px 1200px
1200px 1200px ඪ४αΠζ(1200x1200ʹऩ·ΔαΠζ) ਖ਼ํܗΫϩοϓ(ԣͱॎͰΫϩοϓํ๏͕ҟͳΔ) ԣதԝ߹Θͤ ॎ্߹Θͤ
• αϜωΠϧੜmod_small_lightΛ༻ https://github.com/yamac/smalllight ! • ετϨʔδ͔ΒԿϚελը૾Λ औಘ͠ͳ͍Α͏ʹΩϟογϡΛ͞Ή Dynamic Thumb. Generation
Small Light ετϨʔδ Ωϟογϡ Ωϡʔ nginx Ý nginx ৼΓ͚
Ugoira Data Flow PHP nginx nginx Apache HTTPd nginx pixiv
Contents Delivery Cluster uploading small light load balancing Store Images generating thumbnails Ý Creator Viewers PHP Redis queing
Contents Delivery Cluster
• εέʔϥϒϧ • Ԇ (< 100ms) • ߴ͍ώοτ (> 95%)
• ઃఆ͕มߋ͍͢͠ Storage pixiv Contents Delivery Clusters Contents Delivery Cluster
Inside of pixiv CDC 10Gbps 10Gbps nginx nginx nginx ATS
ATS ATS nginx nginx nginx Hashing 64GB Memory Caching (60%) 3x 256GB SSD Caching (90%) 1Gbps
Ugoira Compatibility • ZIPϑΝΠϧͷ৴ • CORS Non-simpleϦΫΤετͷԠ
CORS • ผυϝΠϯͷϦιʔεͷϦΫΤετΛڐՄ͢Δ • simple requests / non-simple requests ͷ2͕ͭ͋Δ
• Ϟμϯϒϥβ͍͍ͩͨରԠ
CORS Non-Simple Request someone.example.com www.pixiv.net/api var req = new XMLHTTPRequest();
req.open(“GET”, “//www.pixiv.net/api”); req.setRequestHeader(“Range”, “0-10000”); req.send(); GET /api HTTP/1.1 Origin:someone.example.com Range: 0-10000 ϒϥβͰϒϩοΫ͞ΕΔ
someone.example.com www.pixiv.net/api OPTIONS /api HTTP/1.1 Origin:someone.example.com Access-Control-Request-Headers: range Access-Control-Request-Method: GET
Preflight request HTTP/1.1 200 OK Access-Control-Allow-Headers: Range Access-Control-Allow-Methods: GET, POST, OPTIONS Access-Control-Allow-Origin:* Access-Control-Expose-Headers: Content-Length Access-Control-Max-Age: 2592000 ڐՄ͢ΔϦΫΤετϔομ ڐՄ͢ΔϦΫΤετϝιου ڐՄ͢ΔϦΫΤετݩΦϦδϯ Script͔Βར༻Ͱ͖ΔϨεϙϯεϔομ ΩϟογϡՄೳ࣌ؒ ڐՄΛٻΊΔϦΫΤετϔομ ڐՄΛٻΊΔϦΫΤετϝιου GET /api HTTP/1.1 Origin:someone.example.com Range: 0-10000
Ugoira Data Flow PHP nginx nginx Apache HTTPd nginx pixiv
Contents Delivery Cluster uploading small light load balancing Store Images generating thumbnails Ý Creator Viewers PHP Redis queing
Complete!
Conclusion • ͏͝ΠϥͷόοΫΤϯυී௨ʹ͏͍͍ͯ͝Δ • ៉ྷͳγεςϜྑ͍͚Ͳ͏͘͝ͷલఏ • ͏্͘͝ʹ֦ு͍͢͠ͷॏཁ