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Atsushi Takayama
December 09, 2015
Technology
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pixivとThrift
Atsushi Takayama
December 09, 2015
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Transcript
pixivͱThrift
ࣗݾհ • ߴࢁ Թ @edvakf • pixivͷອըࣄۀͷ։ൃऀ • ීஈॻ͍ͯΔͷScalaPHPɺͨ·ʹJSRubyGo •
ϦʔυΤϯδχΞ • ձࣾͷٕज़બʹΛ࣋ͭ • ʮࣾͷΤϯδχΞ͕ͤʹಇͨ͘ΊʹʯΛߟ࣮͑ݱ͢Δۀ
Thrift
Thriftͱ • RPCͷͨΊͷϑϨʔϜϫʔΫ • ಠࣗͷΠϯλʔϑΣΠεఆٛݴޠͰσʔλߏͱαʔϏεΠϯλʔϑΣ ΠεΛهड़ • ͦΕΛίϯύΠϧ֤ͯ͠ݴޠͷϥΠϒϥϦΛग़ྗ • ௨৴ϨΠϠʔಠࣗͷιέοτϓϩτίϧͷଞʹɺHTTPͳͲબΔ
• ΕΔ͜ͱࠓGoogle͕ग़ͨ͠gRPCͱಉ͡ • pixivͰPHP͔Βѻ͍͍͢ThriftΛબ
pixiv.git • pixiv.gitPHP͚ͩͰ200ສߦҎ্ • ίʔσΟϯάن݁ߏ͔ͬ͠Γ͍ͯ͠ΔํͰɺ͍ͩͨ ͍Ͳ͜ಉ͡࡞๏Ͱॻ͔Ε͍ͯΔ • 1ՕॴΛ֮͑ΕଞͷՕॴ͙͢ϝϯςͰ͖ΔΑ͏ʹ • ίʔσΟϯάنʹ߹͍ͬͯͳ͍ݹ͍ίʔυΛॻ͖͑
ͨΓ͢ΔͷʹͦΕͳΓͷखؒΛ͔͚͍ͯΔ
pixiv.git • தʹͪΖΜɺͦ͏͍͏࣌Ҏ֎ʹ৮ΒΕͳ͍Օॴ͋Δ • ͦ͏͍͏෦࣮ࡍpixivͷࠜװͱૄ݁߹ʹͳ͍ͬͯΔ͜ͱ͕ ଟ͍ • ྫ͑ϢʔβʔใͱΠϥετใ͙Β͍͔͍ͬͯ͠ͳ͍ͱ͔ • ϢʔβʔใͱΠϥετใ͙Β͍Λฦ͢APIͰपล෦ͱܨ͕
Δ͜ͱʹΑͬͯɺपล෦ΛผϦϙδτϦʹͯ͠ૣ͘ރΒ͍ͯ͠ ͚ͳ͍͔ • →ThriftΛ࠾༻
ThriftʹܾΊͨܦҢ • pixivʹPHPҎ֎ʹRailsͰॻ͔ΕͨαʔϏε͕͋ ΓɺݴޠΛ͑ͯ͏Մೳੑ͕͋ͬͨ • ࠓGoScala͋Δ • PHPͰAPIαʔόʔΛ࡞Δ͜ͱʹͳΔͷͰɺHTTPʹͬ ͔ΕΔͷ͕ྑ͔ͬͨ
vs JSON • طʹ͋ͬͨɺJSONΛฦ͢εϚϗΞϓϦ༻APIͷΛ ղܾ͔ͨͬͨ͠ • APIυΩϡϝϯτͷඋ͕์ஔ͞Ε͕ͪ • LLʹ͋Γ͕ͪͳɺܕʹ͍෦ΛؤுͬͯίʔυΛॻ ͍ͯରॲ͍ͯͨ͠
• →ThriftͰ͋ΕɺAPIυΩϡϝϯτࣗಈͰ࡞ΒΕΔ ͠ɺPHPͰಛʹҙࣝ͠ͳͯ͘APIͷܕ͕͔ͬ͠Γ͢Δ
ThriftͷΘΕํͱར • ݱࡏɺ2ͭͷपลαʔϏε͔Βར༻ • ScalaͱRails • ThriftͷఆٛΛ࣋ͬͨϦϙδτϦɺcomposer.jsonͱbuild.sbtͱ gemspec͕ஔ͔Ε͍ͯΔ • HTTPͷརΛ׆͔ͯ͠ɺnginxͰϦόʔεϓϩΩγ
• nginxΑΓઌpixivͷී௨ͷϦΫΤετͷࡋ͔Εํͱಉ͡ • APIΛఆٛ͢Δͱ͖ʹσʔλߏܕؚΊ͔ͯͬ͠Γߟ͑ͯ࡞ΔͷͰɺม ͑ͨ͘ͳͬͨ͜ͱࠓͷͱ͜Ζແ͍
རʁ • ॳͷݟ௨ΓɺϢʔβʔใͱΠϥετใ͙Β͍ ͰࣄΓ͍ͯΔ • →ͱ͍͏ͷਖ਼͘͠ͳͯ͘ɺͦΕͧΕͷपลαʔ Ϗεઐ༻ͷAPIগ࡞Δ͜ͱʹͳͬͨ • ઐ༻෦͕ଟ͘ͳΕͳΔ΄Ͳɺʮ࣮पลαʔϏ εີ݁߹ͩͬͨʯͱ͍͏͜ͱʹͳΓɺRPCͰܨ
͕ͬͨͷؒҧ͍ͩͬͨͱ͍͏͜ͱʹͳΔ
ଞʹࠔͬͨ • HTTP௨৴ΛThriftͷϥΠϒϥϦ͕Ӆṭ͢ΔͷͰɺੜͷϨεϙϯεΛ ֬ೝ͢Δͷ͕໘ • ͦͦόΠφϦͳͷͰ༰ΛݟͯΘ͔Βͳ͍ • ʢવ͚ͩͲʣ։ൃ͢Δͱ͖ʹɺAPIఆٛΛॻ͍ͯϒϥϯνʹϓο γϡͯ͠αʔόʔɾΫϥΠΞϯτͰ͏Α͏ʹͯ͠…ͱ͍͏ϑϩʔ ໘
• εϚϗΞϓϦ༻ͷAPIʹ͓͔ͱࢥ͕ͬͨɺॾʑͷཧ༝Ͱ٫Լͨ͠ • ී௨ʹJSONͷREST APIʹམͪண͍ͨ
·ͱΊ • pixivͰࠓ͔ΒݴޠؒɾαʔόʔؒRPCͰThriftΛ ͍࢝Ί·ͨ͠ • ܕ͕͔ͬ͠Γ͍ͯ͠Δͱ͜ΖͱɺυΩϡϝϯτͷੜ͕ ΩϥʔͰͨ͠