Server Side Swiftを しばらく運用してみた話

Transcript

1. S E R V E R S I D E S W I F T Λ 

   ͠ ͹ Β ͘ ӡ ༻ ͯ͠ Έ ͨ ࿩
   T O K Y O S E R V E R S I D E S W I F T M E E T U P # 8
   Yusuke ItoɾനϠΪίʔϙϨʔγϣϯ
   novi
   2017/06/27
   

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2. χϡʔεΩϡϨʔγϣϯApp
   اۀ޲͚API
   

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3. Minutes(λΠϚʔAppͰ͢)
   

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4. S E R V E R - S I D E S W I F T
   ӡ ༻ ɾ ࢼ ݧ த ͷ α ʔ Ϗ ε
   • ΫϩʔϦϯάΛߦͳ͏σʔϞϯ(Ϋϩʔϥʔ)
   • Ұͭ໨: 30kߦ
   • ೋͭ໨: 2~3000ߦ
   • gRPCϕʔεͷαʔόʔ
   • ͲͪΒ΋Swift 3.1.1Λ࢖༻
   

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5. t r y ! S w i f t ʹ ͯ …
   RDS
   ECS(EC2 Container Service)
   

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6. D O C K E R Ͱ C U R L ͕ ಈ ͔ ͳ ͍ ໰ ୊
   • cURLΛ࢖͏ϥΠϒϥϦ͕Unknown Error·ͨ͸མͪΔ
   • URLSession
   • shiroyagicorp/swift-seeurl
   • Docker on macOS: ⭕, Docker on AWS(ECS): Crash
   • Docker →
   • libcurl4-openssl-devͰ͸ͳ͘libcurl4-gnutls-devΛ࢖͏
   

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7. T I M E Z O N E ܥ A P I ͕ ಈ ͔ ͳ ͍
   • TimeZone(abbreviation: "JST") => nil ʹͳΔ
   • λΠϜκʔϯͷϑΝΠϧ͕DockerΠϝʔδʹೖ͍ͬͯ
   ͳ͍
   • apt install tzdata ͢Δ (SR-4921)
   • SwfitͷDockerΠϝʔδΛެ͔ࣜΒϑΥʔΫͯࣗ͠෼
   Ͱ࡞Δ
   

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8. G R P C α ʔόʔ ͕ མ ͪ Δ
   • AWS(ECS)ʹஔ͍ͯ1࣌ؒ͘Β͍ͯ͠ΞΫηε͢Δͱؾ
   ·͙ΕʹམͪΔ
   • XcodeσόοάϏϧυ&RunͰ࠶ݱ
   • Address Sanitizer, Thread sanitizer Λ࢖͏
   • gRPCϥΠϒϥϦपΓʹ໰୊͋Γͦ͏
   

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9. M Y S Q L ͕ σ ο υ ϩ ο Ϋ
   • (Swift͸௚઀ؔ܎͋Γ·ͤΜ)
   • SHOW ENGINE INNODB STATUS ; Ͱ࠷ޙʹى͖ͨ
   σουϩοΫΛදࣔ
   • BULK INSERT࣌ͷσουϩοΫͬΆ͍
   • ݪҼ: autocommit = 1 or 0; ͷ࢖͍ํ͕ؒҧͬͯͨ
   

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10. ϝϞ Ϧ Ϧ ʔ Ϋ ?
    • AWS(ECS)্ͰҰ൩ಈ͔͢
    200MB
    

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11. ௐ ࠪ
    • InstrumentsΛ࢖͏
    • Memory Allocationଌఆπʔϧ
    • Xcodeͷπʔϧ͕࢖͑ͯศར
    • ϥϯλΠϜ(Linux or Darwin)͕ҧ͏ͷͰͦ͜͸໰୊
    • ݪҼ·ͩௐࠪத
    

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12. ผ ͷ α ʔ Ϗ ε
    Swift 3.1 (3.0.2ͷͱ͖͸͍ࢗͬͯͨ͞ͷͰ҆ఆͨ͠)
    

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13. · ͱ Ί
    • gRPCϥΠϒϥϦ͸·ͩඍົ
    • Protocol Buffers͸Α͍(Swift͔Βศརʹ࢖͑Δ)
    • શੈքతʹSwiftͷӡ༻ϊ΢ϋ΢͕গͳ͍
    • Webαʔόʔܥ΋αʔόʔϨεΞʔΩςΫνϟͳΒ͍
    ͚Δ͔΋
    

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