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rng-apiをサーバレス化した時の話 / rng-api-Serverless
odanado
April 16, 2018
Programming
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rng-apiをサーバレス化した時の話 / rng-api-Serverless
odanado
April 16, 2018
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Transcript
rng-apiΛ αʔόϨεԽͨ࣌͠ͷ Gotanda.pm #17
ҙ Perlͱؔͳ͍Λ͠·͢
ࣗݾհ • Twitter @odan3240 • Perlྺ 1 • ීஈϙέϞϯʹؔ͢ΔπʔϧΛݸਓ։ൃ •
ࠓճͦΕʹؔ͢Δͷ • ࠷ۙͯͳϒοΫϚʔΫͷςΫϊϩδʔͰਓؾΤϯτϦೖΓ • poke2vec Ͱݕࡧ 2
rng-api ͱ • ϙέϞϯͷήʔϜͷٖࣅཚͷ ॳظγʔυΛಛఆ͢ΔREST API • ؒͰ60ສճୟ͔ΕͨAPIΛެ։ͨ͠ / rng-api
• ݩʑ͘͞ΒVPSͰӡ༻ • ҰͰ400ສճར༻͞Εͨ • ٖࣅཚͷॳظγʔυΛಛఆ→ཚௐΛߦ͏ͨΊ • ϙέϞϯͷରઓΨν ڧ͍ϙέϞϯΛٻΊͯཚௐΛߦ͏ • ͜Ε͕ͨΓલͷੈք͕͋Δ 3
ॳظγʔυಛఆͷΈ • ಛఆ͢Δͷʹඞཁͳલఏ • ٖࣅཚΞϧΰϦζϜಛఆࡁΈ (આ໌ॻʹϥΠηϯεදه) • ٖࣅཚͷॳظγʔυ32bit (࣮ݧతʹ໌Β͔ʹ) •
࿈ଓ͢ΔཚྻΛ؍ଌ͢Δํ๏ཱ֬ࡁΈ • ཚྻΛ؍ଌ͢Δํ๏ • ήʔϜதͷϩʔσΟϯάը໘ʹ༻͞ΕΔ ࣌ܭͷͷ։࢝Ґஔ͕ཚʹΑܾͬͯఆ͞Ε͍ͯΔ 4 0 1 16 ɾɾɾ
ॳظγʔυಛఆͷΈ • ࿈ଓ͢Δ8ݸͷΛ؍ଌ͢ΕॳظγʔυΛಛఆՄೳ • 2 ** 32 < 17
** 8 • ಛఆͷͨΊʹ࣍ͷલॲཧΛߦ͏ 1. [ॳظγʔυ, ରԠ͢Δ8ݸͷྻ] Λ2**32௨Γܭࢉ 2. ↑ͷϖΞΛ ”ରԠ͢Δ8ݸͷྻ” Ͱιʔτ • ͜ΕʹΑΓɺݕࡧ࣌ʹೋ୳ࡧͰݕࡧՄೳ • ൺֱճߴʑ32ճ • ྫ • https://rng-api.odanado.com/usm/sfmt/seed? needle=9,10,7,11,12,15,7,7 • {"results": [{"seed": "c31a2f06", "encoded_needle": "0dd53f07", "step": 477}]} 5
αʔόϨεԽͷಈػ • ͘͞ΒVPSΛղ͍ͨ͠ • αʔόӡ༻͢Δͷ໘ • ӡ༻ίετΛ͍͑ͨ • αʔόϨεʹṖͷಌΕ 6
αʔόϨεԽͰͷ • DB (όΠφϦϑΝΠϧ) ͷαΠζ͕32GBͱڊେ • aws lambda5ඵͷ੍࣌ؒݶ͕͋Γ S3͔Βͷσʔλͷసૹ࣌ؒͰͦΕ͕ऴΘΔ •
DynamoDB Ͱ͍ • DB࡞࣌ʹ 2**32ճͷ write ͕ඞཁ 7
͜Ε·ͰͷΛཧ͢Δͱ…
ղܾ͍ͨ͠ Read Onlyͳkey-valueͷ Έ߹ΘͤΛAWS Lambda͔Β ݕࡧ͍ͨ͠ 9 • σʔλαΠζ͕32GBͱڊେ
• S3͔Βͷసૹ͕5ඵҎʹऴΘΒͳ͍ • ࡞࣌ʹେྔͷWrite͕ൃੜ →DynamoDBͷ՝ۚྔ orz
࠷ऴతͳղܾࡦ • γϯϓϧ • ํ๏ • ͷྻΛʹΤϯίʔυ • 9,10,7,11,12,15,7,7 ->
0x0dd53f07 • Τϯίʔυͨ͠ͷmod 16 ͰϑΝΠϧׂΛ4ճߦ͏ • LinuxͰಉ࣌ʹ։͚ΔϑΝΠϧ100ݸ·Ͱ • ͜ΕʹΑΓ1ͭͷϑΝΠϧͷαΠζ͕ ߴʑ256KBʹͳΔ • ݕࡧ࣌ରϑΝΠϧΛಛఆͨ͠ޙʹೋ୳ࡧ • ಛఆϑΝΠϧύεͰߦ͑Δ 10 32GB ͷBD (όΠφϦϑΝΠϧ) Λ 16**4ʹׂͯ͠S3ʹஔ͢Δ
͜ΕʹΑΓAWS Lambdaʹ ҠߦͰ͖ͨ Ҡߦͯ͠1ϲ݄ա͚͗ͨͲ ࠓͷͱ͜Ζͳ͠
·ͱΊ • ϙέϞϯͷήʔϜதͷٖࣅཚͷॳظγʔυΛ ಛఆ͢ΔAPIΛ͘͞ΒVPS͔ΒAWS LambdaʹҠߦͨ͠ • DBͷαΠζ͕ڊେ (32GB) ͳͷ͕ʹͳͬͨ •
S3 -> Lambdaͷసૹʹ5ඵҎ্͔͔Δ • DynamoDB ʹஔ͢ΔͱDB࡞࣌ͷ Writeճ͕େྔʹൃੜ͠՝ۚࢮ • DBΛࡉΕʹ͢Δ͜ͱͰసૹ࣌ؒͷΛղܾ • 16**4ݸͷϑΝΠϧʹׂ • ϑΝΠϧύεͰରϑΝΠϧΛಛఆ • ϑΝΠϧ1ͭߴʑ256KB 12