サーキットブレーカーを導入しようとしている話

Transcript

1. Re:valua t ion https://fril.jp/ L ead & Delight User F

   irst Ownership Fail Smart αʔΩοτϒϨʔΧʔΛಋೖ͠Α͏ͱ͍ͯ͠Δ࿩

2. 3BLVNB
   4FSWJDF
   %FWFMPQNFOU
   (SPVQ
   3BLVUFO
   JOD
   
    :VTVLF
   .JZB[BLJ !ZTL@QSP !ZTL

3. αʔΩοτϒϨʔΧʔͱ͸ʁ
   

4. 
    αʔΩοτϒϨʔΧʔͱ͸ʁ "1*Λར༻͢Δͱ͖ʹɺར༻͢Δ"1*ͷো֐͕ࣗ෼ͷ αʔϏε΁࿈࠯ͯ͠͠·Θͳ͍Α͏ʹ͢ΔͨΊͷ࢓૊Έ

5. 
    αʔΩοτϒϨʔΧʔͱ͸ʁ ௨ৗ࣌ ࣗ෼ͷαʔϏε "1* ϦΫΤετ Ϩεϙϯε

6. 
    αʔΩοτϒϨʔΧʔͱ͸ʁ "1*Ͱো֐͕ൃੜͨ࣌͠ ࣗ෼ͷαʔϏε "1* ϦΫΤετ Ԡ౴଴ͪͷϦΫΤετ͕૿Ճ͠ɺ
   ϦιʔεΛઐ༗ͨ݁͠Ռɺ
   "1*ͷো֐͕࿈࠯ͯ͠͠·͏͓ͦΕ͕͋Δ

7. 
    αʔΩοτϒϨʔΧʔͱ͸ʁ "1*Ͱো֐͕ൃੜͨ࣌͠ ࣗ෼ͷαʔϏε "1* ϦΫΤετ Ԡ౴଴ͪͷϦΫΤετ͕૿Ճ͠ɺ
   ϦιʔεΛઐ༗ͨ݁͠Ռɺ
   "1*ͷো֐͕࿈࠯ͯ͠͠·͏͓ͦΕ͕͋Δ

8. αʔΩοτ
   ϒϨʔΧʔ
    αʔΩοτϒϨʔΧʔͱ͸ʁ ௨ৗ࣌ ࣗ෼ͷαʔϏε "1* ϦΫΤετ Ϩεϙϯε

   ϦΫΤετ Ϩεϙϯε

9. αʔΩοτ
   ϒϨʔΧʔ
    αʔΩοτϒϨʔΧʔͱ͸ʁ "1*Ͱো֐͕ൃੜͨ࣌͠ ࣗ෼ͷαʔϏε "1* 5JNFPVU ҟৗΛݕ஌͢Δͱɺ"1*ʹϦΫΤετ͢Δ͜ͱͳ͘ɺϨεϙϯεΛฦ͢

10. 
     αʔΩοτϒϨʔΧʔͱ͸ʁ ͭͷϞʔυ͕ଘࡏ $-04&%
    ௨ৗϞʔυ 01&/
    GBJMGBTUϞʔυ )"-'01&/
    ෮چ֬ೝϞʔυ

    Τϥʔ਺͕ᮢ஋ಥഁ ࣌ؒܦա Τϥʔ͠ͳ͍͜ͱΛ֬ೝ Τϥʔͷঢ়گෆม

11. αʔΩοτϒϨʔΧʔͷಋೖ
    

12. 
     αʔΩοτϒϨʔΧʔͷಋೖ ಋೖ͢Δํ๏ ಠࣗͰ࣮૷ (FNΛ࢖͏ 1SPT ΧελϚΠζࣗ༝ ࠷దͳ(FN͕͋Ε͹ɺ࣮૷͕ૣ͍ $POT

    ͕͔͔࣌ؒΔ ΧελϚΠζੑ͕ݶΒΕΔ
    (FN͕ϝϯςφϯε͞ΕΔ͔ෆ໌

13. 
     αʔΩοτϒϨʔΧʔͷಋೖ ಋೖ͢Δํ๏ ಠࣗͰ࣮૷ (FNΛ࢖͏ 1SPT ΧελϚΠζࣗ༝ ࠷దͳ(FN͕͋Ε͹ɺ࣮૷͕ૣ͍ $POT

    ͕͔͔࣌ؒΔ ΧελϚΠζੑ͕ݶΒΕΔ
    (FN͕ϝϯςφϯε͞ΕΔ͔ෆ໌

14. 
     αʔΩοτϒϨʔΧʔͷಋೖ (FNͷબఆ XTBSHFOU
    
    DJSDVJU@CSFBLFS ZBNNFS
    
    DJSDVJUCPY 4UBS   -BUFTU
    DPNNJU

    
    
    
    
     
    
    
     3&"%.&ͷॆ࣮౓ ˓ ˕

15. 
     αʔΩοτϒϨʔΧʔͷಋೖ (FNͷબఆ XTBSHFOU
    
    DJSDVJU@CSFBLFS ZBNNFS
    
    DJSDVJUCPY 4UBS   -BUFTU
    DPNNJU

    
    
    
    
     
    
    
     3&"%.&ͷॆ࣮౓ ˓ ˕

16. 
     αʔΩοτϒϨʔΧʔͷಋೖ
    ʙ
    (FNͷίΞ෦෼ def run if open? # ϩάग़ྗͳͲ else

    begin response = execution_timer.time(service, notifier, 'execution_time') do yield end success! # HALF-OPENͩͬͨ৔߹ɺCLOSEDʹ͢Δ rescue response = nil failure! # HALF_OPENͩͬͨ৔߹ɺOPENʹ / CLOSEDͩͬͨ৔߹ɺ৚݅ʹΑͬͯOPENʹ End end response end def http_get circuit.run do Zephyr.new('http://example.com').get('/api/messages') end end ˞
    ͔ͳΓ؆ૉԽ͍ͯ͠·͢ɻࢀߟɿ(JU)VCͷ֘౰Օॴ

17. 
     αʔΩοτϒϨʔΧʔͷಋೖ
    ʙ
    'BSBEBZͱ૊Έ߹Θ࣮ͤͨ૷ํ๏ require 'faraday' require 'circuitbox/faraday_middleware' conn = Faraday.new(:url

    => "http://example.com") do |c| c.use Circuitbox::FaradayMiddleware end response = conn.get("/api") if response.success? # success else # failure or open circuit end ˞
    3&"%.&͔Βͷൈਮ ˞
    'BSBEBZ͸ɺศརͳ)551ΫϥΠΞϯτϥΠϒϥϦʢ3VCZ,BJHJͰ΋঺հ͞Ε͍ͯ·ͨ͠ʣ

18. 
     ࣮ࡍͷ࣮૷ɺϦϦʔε͸͜Ε͔Β
    5P
    #F
    DPOUJOVFE
    ʜ

19. ·ͱΊ
    

20. 
     ·ͱΊ w αʔΩοτϒϨʔΧʔͱ͸ɺ"1*Λར༻͢Δͱ͖ʹɺ ར༻͢Δ"1*ͷো֐͕ࣗ෼ͷαʔϏε΁࿈࠯ͯ͠͠· Θͳ͍Α͏ʹ͢ΔͨΊͷ࢓૊Έ
    w (FN ZBNNFS
    
    DJSDVJUCPY

    Λ࢖ͬͯؾܰʹ࣮૷Ͱ ͖ͦ͏
    w ࣍ճ͸ɺ࣮ࡍʹ࣮૷ͯ͠ϦϦʔεͨ͠ޙʹͲ͏ͩͬͨ ͔Λڞ༗͠·͢

21. 
     ͋Γ͕ͱ͏͍͟͝·ͨ͠

22. ิ଍
    

23. 
     ิ଍ w αʔΩοτϒϨʔΧʔͷ໊લͷ༝དྷ
    w αʔΩοτϒϨʔΧʔͱ͍͏ͷ͸ɺిؾճ࿏ͷϒ ϨʔΧʔͷ͜ͱʢࣄނ΍ނোͰେ͖ͳిྲྀ͕ྲྀΕͨ ͱ͖ʹࣗಈతʹःஅͯ͠഑ઢΛอޢ͢Δػߏͷ͜ ͱʣ

24. 
     ิ଍ w ԿճΤϥʔͨ͠Β01&/ʹͳΔ͔ɺͳͲ͸ΧελϚΠ ζͰ͖Δ
    w σϑΥϧτ͸ɺ௚ۙϦΫΤετͰճҎ্Τϥʔ ͍ͯͨ͠Βɺ෼ؒ01&/ͱͳΔ
    w

    DJSDVJUCPYͷTUPSBHF Կճࣦഊ͔ͨ͠ͱ͔ ͸ɺ .POFUBͱ͍͏γϯϓϧͳLFZWBMVF
    TUPSFΛඪ४Ͱ ࢖༻͍ͯ͠Δ