リクルートテクノロジーズの技術動向

Java/Go のOB,OG会で発表した リクルートテクノロジーズの技術動向の話です。

Transcript

1. ϦΫϧʔτςΫϊϩδʔ
   ζͷٕज़બఆ
   2018/06/30 @ freee גࣜձࣾ / Java/GoݚमOBձ
   

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2. Twitter: @yosuke_furukawa
   Github: yosuke-furukawa
   

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3. 2018/11/23 - 24
   Node ֶԂࡇ։࠵
   

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4. JS Quiz
   

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5. ҎԼͷ৚݅Λຬͨ͢ a objectΛ
   ࡞ͬͯΈΔ
   var a = {
   // ?
   }
   if (
   (a >= 1 && a <= 2) &&
   (a >= 3 && a <= 4) &&
   (a >= 5 && a <= 6)
   ) {
   console.log('pass')
   }
   

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6. ճ౴
   var a = {
   i: 1,
   valueOf() {
   return this.i++
   }
   }
   if (
   (a >= 1 && a <= 2) &&
   (a >= 3 && a <= 4) &&
   (a >= 5 && a <= 6)
   ) {
   console.log('pass')
   }
   

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7. ϦΫϧʔτςΫϊϩδʔζͷ
   ٕज़બఆ
   

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8. Java Node.js Go
   ϦΫϧʔτςΫϊϩδʔζͰ࢖ͬͯΔαʔόα
   Πυݴޠ
   Ruby Erlang Clojure
   Kotlin Python
   

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9. Java
   Node.js Go
   ϦΫϧʔτςΫϊϩδʔζͰ࢖ͬͯΔαʔόα
   Πυݴޠ
   Ruby
   Erlang
   Clojure
   Kotlin
   Python
   

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10. ׂͱͨ͘͞Μͷٕज़Λ࢖ͬͯ
    ͍Δɻ
    

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11. ϦΫϧʔτςΫϊϩδʔζͷඪ
    ४తͳߏ੒
    • Backend For Frontends
    #SPXTFS #''
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    

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12. ϦΫϧʔτςΫϊϩδʔζͷඪ
    ४తͳߏ੒
    • Backend For Frontends
    #SPXTFS #''
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    ͜ͷαʔό͸)5.-Λ࡞ͬ
    ͨΓɺ"1*Λ·ͱΊͨΓɺηο
    γϣϯ؅ཧͨ͠Γ͢Δ
    

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13. ϦΫϧʔτςΫϊϩδʔζͷඪ
    ४తͳߏ੒
    • Backend For Frontends
    #SPXTFS #''
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    ͬͪ͜͸"1*αʔόɺ%#ͱ
    ઀ଓͨ͠ΓɺpMFॻ͖ग़ͨ͠
    Γɺ֎෦"1*ͱܨ͍ͩΓɻ
    

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14. ͦΕͧΕ޲͖ɾෆ޲͖͕͋Δ
    • BFF
    • HTMLΛ࡞ΔखલɺϑϩϯτΤϯυΤϯδχ
    Ξ͕৮Γ΍͍͢γεςϜͰ͋Δඞཁ͕͋Δ
    • APIΛͨ͘͞Μ౤͛ΔͷͰɺඇಉظϑϨϯυ
    ϦʔͰ͋ͬͯ΄͍͠
    

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15. ͦΕͧΕ޲͖ɾෆ޲͖͕͋Δ
    • Backend
    • ϏδωεϩδοΫͱDBΞΫηε͕ଟ͍
    • τϥϯβ͘γϣφϧͳॲཧͱ͖ͬͪΓͨ͠
    ྫ֎ϋϯυϦϯά
    • ʢܕ͕΄͍͠ʣ
    

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16. ϦΫϧʔτςΫϊϩδʔζͷඪ
    ४తͳߏ੒
    • Backend For Frontends
    #SPXTFS #''
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    .JDSP4FSWJDF
    ͬͪ͜͸/PEFKTͰॻ͍ͯΔ
    ͬͪ͜͸+BWBPS(PͰॻ͍
    ͯΔɻ
    

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17. ϦΫϧʔτςΫϊϩδʔζ
    • ϑϩϯτΤϯυ͸Node.jsͰॻ͘
    • Express, webpack, babel, etc etc
    • όοΫΤϯυ͸Go or JavaͰॻ͘ʢঃʑʹGo
    Λ૿΍ͯ͠Δ࠷தʣ
    • echo, DI container, Πϯϑϥܥπʔϧ etc etc
    

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18. ଟछଟ༷ͳٕज़Λ࢖ͬͯ໨ͷ
    લʹ͋Δ՝୊Λղܾ͍ͯ͘͠
    

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19. GoͰDI container
    • DI ContainerΛϝϯόʔ͕࡞ͬͯ͘Εͨ
    ෳ਺ͷ+BWBΤϯδχΞʹ(PΛॻ͔ͤΔͨΊɺςετ
    Λॻ͖΍͘͢͢ΔͨΊ
    

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20. PythonͰBig Queryͷςετ
    πʔϧ
    • bqspecΛϝϯόʔ͕࡞ͬͯ͘Εͨ
    • yamlͰsqlͷϦΫΤετͱ໭Γ஋ͷνΣοΫΛ
    ॻ͘͜ͱ͕Ͱ͖Δπʔϧ
    #JH2VFSZΛॻ͘σʔλΞφϦετͷφϨοδΛς
    ετͱ͍͏ܗͰܗࣜԽ͢ΔͨΊ
    

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21. Node.jsͰAPI mock/stub
    • BFFͱόοΫΤϯυͰAPI௨৴Λstub͢ΔϞ
    δϡʔϧΛ࡞ͬͯΔ
    "1*ͷTUVCʹ΋ͳΓɺόοΫΤϯυͷαʔόʹ͸ς
    ετΫϥΠΞϯτʹ΋ͳΔπʔϧΛ։ൃ
    

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22. ͜͏͍͏ਓΛ΋ͬͱ૿΍ͯ͠
    ͍͖͍ͨ͠ɺ͜͏͍͏ࣄྫΛ
    ΋ͬͱ૿΍͍ͨ͠
    

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23. ๻͸Ͳ͏͍ͯ͠Δ͔
    

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24. άϧʔϓϚωʔδϟͱͯ͠ҰԠ
    શ෦೺Ѳ͢ΔΑ͏ʹ͍ͯ͠Δ
    • Node.js͚ͩ͡Όͳ͘ɺGo΋ɻ
    • ୈ6ظ Go ݚम(ϥΠτ൛)डߨੜ
    • ͪͳΈʹୈNظ Java ݚमଔۀੜʂʂ
    

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25. ݚमͱ͍͏ܗͰجૅྗ޲্Λఏڙ͠ɺ
    ࣮Ҋ݅ͱ͍͏ܗͰԠ༻ྗ޲্ͤ͞Δ
    • ݚम͸جຊతʹϝϯόʔʹ͸ड͚ͤ͞ΔΑ͏
    ʹ͍ͯ͠Δ
    • طʹ2໊ଔۀɺ1໊डߨதɺདྷظ͸͞Βʹ૿
    ΍͢ɻ
    • Ҋ݅Ͱ΋GoΛ࠾༻͍ͯ͠Δʢ૿΍ͯ͠Δʣ
    

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26. ݚमड͚௚ͯ͠Έͯ
    • 1೥໨ͰJavaݚमड͚ͯͨͱ͖͸ࢹ໺΋ڱ͔ͬ
    ͨɻ
    • ։ൃܦݧΛੵΜͰ͔Βࠓͳࣲ͓ా͞ΜͷGoݚ
    मΛड͚Δͱ࣭໰Ͱ͖Δ͜ͱ͕ҧ͏ɻ
    

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27. ݚमड͚௚ͯ͠Έͯ
    

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28. ݚमड͚௚ͯ͠Έͯ
    • ܦݧΛੵΜͰ͔Βฉ͚Δ͜ͱ͕૿͑ͯࠓͳ͓
    ָ͍͠ɻ
    • ձࣾʹࣲా͞ΜΛݺΜͰݚमड͚ͤͯ͞΋Β
    ͓͏ɻ
    • ࣗ෼͕1೥໨Ͱड͚ͨྑ͔ͬͨ͜ͱ͸ϝϯόʔ
    ʹ΋ܦݧͯ͠΋Β͍͍ͨ
    

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29. ਃ͠༁ఔ౓ͷ
    Node.js࠷৽ಈ޲
    

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30. Node.js v10.5.0 released
    • Worker (Thread)͕ೖͬͨ
    • Node.js ͸͜Ε·Ͱsingle thread͕ͩͬͨɺ
    Multi Threadϓϩάϥϛϯά΋ग़དྷΔΑ͏ʹ
    • ࠷ۙ͸Node.js΋CPUϔϏʔͳॲཧ͕૿͖͑ͯ
    ͨ
    

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31. Node.js has various use cases
    

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32. Node.js has various use cases
    &WFSZUPPMTGSBNFXPSLTIBT$16JOUFOTJWFUBTLT
    

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33. History of concurrent Node.js
    /PEFKT
    #FGPSFW
    4JOHMF1SPDFTT
    4JOHMF5ISFBE
    

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34. History of concurrent Node.js
    /PEFKT
    .BTUFS1SPDFTT
    $IJME
    1SPDFTT
    $IJME
    1SPDFTT
    $IJME
    1SPDFTT
    $IJME
    1SPDFTT
    

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35. History of concurrent Node.js
    /PEFKT
    .BTUFS1SPDFTT
    $IJME
    1SPDFTT
    $IJME
    1SPDFTT
    $IJME
    1SPDFTT
    $IJME
    1SPDFTT
    .BTUFS1SPDFTT
    DBOGPSLDIJMEQSPDFTT W
    
    

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36. History of concurrent Node.js
    /PEFKT
    .BTUFS1SPDFTT
    8PSLFS
    8PSLFS
    8PSLFS
    8PSLFS
    8PSLFS
    8PSLFS
    

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37. History of concurrent Node.js
    /PEFKT
    .BTUFS1SPDFTT
    8PSLFS
    8PSLFS
    8PSLFS
    8PSLFS
    8PSLFS
    8PSLFS
    Ϛελʔϓϩηε͔Β8PSLFS5ISFBEΛىಈ͢ΔɺεϨου
    ͳͷͰϓϩηεΑΓ͸ىಈ͸ܰྔɻ
    

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38. babel-core using single thread.
    target files
    (ES6)
    transpiled
    code (ES5)
    

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39. babel-core using child_process
    .BTUFS
    target files
    Send File
    transpiled
    

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40. babel-core using Worker
    /PEFKT
    .BTUFS
    target files
    transpiled
    Send File
    

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41. Result
    pMF
    OVNCFST
    CBCFMDPSF
    VTJOHTJOHMFUISFBE
    CBCFMDPSF
    VTJOHDIJMEQSPDFTT
    CBCFMDPSF
    VTJOHXPSLFS
    NT NT NT
    NT NT NT
    NT NT NT
    NT NT NT
    NT NT NT
    

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42. Node.js Worker Λ࢖ͬͯ৽͠
    ͍ϥΠϒϥϦΛ࡞͍ͬͯ͘
    • SSRͷߴ଎Խ
    • babel, webpackͷߴ଎Խ etc
    • ϦΫϧʔτςΫϊϩδʔζͰ͸৽͍ٕ͠ज़Λݚ
    ڀ՝୊ͱͯ͠৽͍͠औΓ૊ΈΛ͍ͯ͘͠ɻ
    

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43. Thank you!!
    

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