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Good programmer copies, Great programmer pastes

Avatar for Kei Kamikawa Kei Kamikawa
July 26, 2019

Good programmer copies, Great programmer pastes

琉球大学の情報産業社会学言論Iの講話で呼ばれたので、1年間こんな感じだったという話をしました

Avatar for Kei Kamikawa

Kei Kamikawa

July 26, 2019
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  1. Good programmer copies Great programmer pastes גࣜձࣾϝϧΧϦ
 ιϑτ΢ΣΞΤϯδχΞɹ্઒ɹܚ

  2. w ্઒ɹܚ ,FJ,BNJLBXBʣ w !DPEFIFY w ϓϩάϥϛϯάݴޠ1FSMͱ(P͕޷͖

  3. IUUQTNFSDBONFSDBSJDPNBSUJDMFT

  4. ུྺ w ླྀٿେֶ޻ֶ෦৘ใ޻ֶՊ΁ೖֶ w ϓϩάϥϛϯάݴޠ1FSMίϛϡχςΟ0LJOBXBQNઃཱ w ϓϩάϥϛϯάೖ໳Πϕϯτ1FSMೖֶࣜ։࢝ w גࣜձࣾλοϓͰΞϧόΠτ w

    גࣜձࣾϝϧΧϦೖࣾ w :"1$0LJOBXBΛ։࠵ w גࣜձࣾϝϧϖΠ΁ग़޲ w ݄ʹגࣜձࣾϝϧΧϦ΁໭Δ
  5. None
  6. None

  7. ͔ΜͨΜʹചΓങ͍͕Ͱ͖ͯ
 ͋Μ͠Μɾ͋ΜͥΜͳ͓औҾ͕Ͱ͖Δ
 ϑϦϚΞϓϦ

  8. None
  9. None

  10. ˔αʔϏε։࢝೔ɿ2013೥7݄ ˔ରԠOSɿAndroidɺiOS ˞8FCϒϥ΢β͔Β΋ར༻Մೳ ˔ར༻ྉɿແྉ ˞ചΕͨͱ͖ͷख਺ྉɿൢചՁ֨ͷ10% ˔ରԠ஍Ҭɾݴޠɿ೔ຊɾ೔ຊޠجຊ࢓༷

  11. ϝϧΧϦͷػೳͷҰྫ

  12. ΦϑΝʔػೳ ߪೖر๬ऀ͕ग़඼ऀʹՁ֨Λ ఏҊͯ͠஋Ҿ͖Λ͓ئ͍͢Δ ػೳɻग़඼ऀ͕ΦϑΝʔΛ
 ঝ୚͢ΔͱɺΦϑΝʔΛૹ৴ ͓ͨ͠٬͞·ͷΈ͕஋Ҿ͖ޙ ͷՁ֨ͰߪೖͰ͖Δ

  13. ࣸਅݕࡧػೳ ୳͍ͨ͠঎඼ͷը૾Λಡ ΈࠐΉͱɺϝϧΧϦ্ʹ ग़඼͞Ε͍ͯΔ঎඼ը૾ Λର৅ʹݕࡧΛߦ͍ɺը ૾ͱಉ͡঎඼΋͘͠͸ྨ ࣅ঎඼ΛݕࡧͰ͖Δ

  14. None

  15. ৽ͨͳՁ஋ΛੜΈͩ͢ ੈքతͳϚʔέοτϓϨΠεΛ૑Δ Create value in a global marketplace where anyone

    can buy & sell

  16. ҰਓͰ͸ୡ੒Ͱ͖ͳ͍େ͖ͳϛογϣϯ ΛɺνʔϜͷྗΛ߹Θͤɺશһ͕࠷େͷ ύϑΥʔϚϯεΛൃش͢Δ͜ͱͰ࣮ݱ͠ ·͢ɻ ੈͷதʹΠϯύΫτΛ༩͑ΔΠϊϕʔγ ϣϯΛੜΈग़ͨ͢Ίɺશһ͕େ୾ʹνϟ Ϩϯδ͠ɺ਺ଟ͘ͷࣦഊ͔Βֶͼɺ࣮ફ ͠·͢ɻ ϝϯόʔશһ͕ͦͷಓͷϓϩϑΣογϣ φϧͱͯ͠ΦʔφʔγοϓΛ࣋ͪɺ೔ʑ

    ͷֶͼΛଵΒͣɺ੒Ռ΍࣮੷ʹίϛοτ ͠·͢ɻ Go Bold େ୾ʹ΍Ζ͏ All for One શͯ͸੒ޭͷͨΊʹ Be ϓϩϑΣογϣφϧ
 Ͱ͋Ε a Pro

  17. ձࣾઃཱ೔ ౦ژɺઋ୆ɺ෱Ԭɺ Palo AltoɺPortlandɺ Boston ΦϑΟε ໿1,800໊ʢ࿈݁ʣ ैۀһ਺ ೥݄೔

  18. ೖࣾͷ͖͔͚ͬ

  19. None

  20. w ϝϧΧϦͷΤϯδχΞϦϯάϒϩάʹײܹͨ͠ w ಡΜͩهࣄ͸ͲΕ΋ߴ౓ͳ͜ͱ͹͔Γ w Ͳ͏΍ͬͨΒ࣮ݱͰ͖ΔΜͩΖ͏ w 

  21. w ϝϧΧϦͷΤϯδχΞϦϯάϒϩάʹײܹͨ͠ w ಡΜͩهࣄ͸ͲΕ΋ߴ౓ͳ͜ͱ͹͔Γ w Ͳ͏΍ͬͨΒ࣮ݱͰ͖ΔΜͩΖ͏ w ೖࣾͨ͠Βશ෦ݟΕΔ͸ͣ

  22. w ϝϧΧϦͬͯͲΜͳձࣾͳΜͩΖ͏ w NFSDBOΛಡΉ w ࣾ಺ͷऔΓ૊ΈΛ஌ΔΊͬͪΌΑͦ͞͏ w ৽ଔͰೖࣾͨ͠ਓͷϒϩάΛಡΉΊͬͪΌΑͦ͞͏ w 

  23. w ϝϧΧϦͬͯͲΜͳձࣾͳΜͩΖ͏ w NFSDBOΛಡΉ w ࣾ಺ͷऔΓ૊ΈΛ஌ΔΊͬͪΌΑͦ͞͏ w ৽ଔͰೖࣾͨ͠ਓͷϒϩάΛಡΉΊͬͪΌΑͦ͞͏ w 5XJUUFSͰͦͷϝϧΧϦͷΤϯδχΞ΁%.

  24. None
  25. None

  26. ͦͯ͠
 ιϑτ΢ΣΞΤϯδχΞʹͳͬͨ

  27. None

  28. ೖ࢛ࣾͯ͠൒ظΛৼΓฦΔ

  29. w 69νʔϜ΁഑ଐ͞ΕΔ w ϝϧΧϦΛ࢖ͬͯ௖͍ͯΔ͓٬༷ͷମݧΛ޲্ͤ͞Δͷ͕໨త w ౰࣌͸ओʹ഑ૹपΓͷମݧΛ޲্ͤ͞ΔͨΊʹίʔυΛॻ͘೔ʑ w ॳΊͯͷ͜ͱ͕ଟ͘ΊͬͪΌ໘ന͔ͬͨ Apr -

    Jun

  30. Develop Monolith Test Deploy Operate Backend Team QA team SRE

    team Release Flow

  31. w 69νʔϜ΁഑ଐ͞ΕΔ w ϝϧΧϦΛ࢖ͬͯ௖͍ͯΔ͓٬༷ͷମݧΛ޲্ͤ͞Δͷ͕໨త w ౰࣌͸ओʹ഑ૹपΓͷମݧΛ޲্ͤ͞ΔͨΊʹίʔυΛॻ͘೔ʑ w ΦϑΝʔػೳͷ։ൃʹ΋ܞΘͬͯͨ w ϝϧΧϦͰ͸"1*(BUFXBZʹඥ෇͍ͨॳͷ.JDSPTFSWJDF

    Apr - Jun

  32. API Gateway Offer service Mercari API Authority service  

           -BTU

  33. w .JDSPTFSWJDFT%FWFMPQNFOUνʔϜ΁഑ଐ w ຊ֨తʹ.POPMJUI͔Β.JDSPTFSWJDFT΁ w ϕʔεͱͳΔαʔϏε܊ͷ։ൃ w ·ͣ͸ग़඼޲͚ػೳͷҠߦΛਐΊͯͨ MJTUJOH 

    w ਫ਼Ӷ෦ୂͩͬͨͷͰֶͼ͕ଟ͘ɺΊͬͪΌָ͔ͬͨ͠ Jul - Sep, Oct - Dec

  34. w .JDSPTFSWJDFT%FWFMPQNFOUνʔϜ΁഑ଐ w ຊ֨తʹ.POPMJUI͔Β.JDSPTFSWJDFT΁ w ϕʔεͱͳΔαʔϏε܊ͷ։ൃ w ·ͣ͸ग़඼޲͚ػೳͷҠߦΛਐΊͯͨ MJTUJOH 

    w ਫ਼Ӷ෦ୂͩͬͨͷͰֶͼ͕ଟ͘ɺΊͬͪΌָ͔ͬͨ͠ Jul - Sep, Oct - Dec ‏8IZ

  35. .POPMJUI.JDSPTFSWJDFT

  36. Monolith Microservices

  37. .POPMJUI.JDSPTFSWJDFT

  38. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr

  39. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities.

  40. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities.

  41. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. Availability If one part is dead, everything is dead...

  42. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Availability

  43. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Availability

  44. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Availability

  45. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Complexity Difficult to add new feature Difficult to try new technologies Difficult to on-boarding Availability

  46. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Complexity Difficult to add new feature Difficult to try new technologies Difficult to on-boarding Velocity Communication overhead Max 32 deployment per day Availability

  47. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Complexity Difficult to add new feature Difficult to try new technologies Difficult to on-boarding Velocity Communication overhead Max 32 deployment per day Availability

  48. Listing Shipping Notification Review Purchase Login Timeline Search Search MySQL

    Mercari Monolith Solr Scalability Need to scale everything for one part of functionalities. If one part is dead, everything is dead... Complexity Difficult to add new feature Difficult to try new technologies Difficult to on-boarding Velocity Communication overhead Max 32 deployment per day Availability

  49. .POPMJUI.JDSPTFSWJDFT

  50. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team

  51. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work

  52. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work

  53. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work

  54. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work

  55. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work Flexible scaling Each service can scale independently on demand

  56. Listing DB Listing team User DB User team Item DB

    Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work Flexible scaling Each service can scale independently on demand

  57. Item Item Listing DB Listing team User DB User team

    Item DB Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work Flexible scaling Each service can scale independently on demand

  58. Item Item Listing DB Listing team User DB User team

    Item DB Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work Flexible scaling Each service can scale independently on demand Simplicity Easy to add new feature Easy to use well suited technology (DB)

  59. Item Item Listing DB Listing team User DB User team

    Item DB Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work Flexible scaling Each service can scale independently on demand Simplicity Easy to add new feature Easy to use well suited technology (DB) Agility Independent deployement Independent decision in small context

  60. Item Item Listing DB Listing team User DB User team

    Item DB Item team Shipping DB Shipping team Timeline DB Timeline team Resilient If one service is dead, others can continue to work Flexible scaling Each service can scale independently on demand Simplicity Easy to add new feature Easy to use well suited technology (DB) Agility Independent deployement Independent decision in small context

  61. API Gateway Listing service Mercari API Authority service  

        -BTU #FGPSF-BTU

  62. Listing Item User Shipping Shipping A Shipping B Shipping C

    DB DB DB DB DB Service A Service B DB DB

  63. w ࣾ಺ͷಈ͖ w .JDSPTFSWJDFTʹ൐ͬͯ૊৫ͷࡏΓํ΋ߟ͍͖͍͑ͯͨ w εέʔϧ͢Δ૊৫ͷઃܭ w ͲͷαʔϏεͰ͸ͲΜͳॲཧΛ͢΂͖ͳͲ੹຿ͷٞ࿦͕͋Δ w JF

    6TFSTFSWJDFͰ͸ͲΜͳػೳ͕Ϣʔβʔʹؔ࿈͢Δʁ Jul - Sep, Oct - Dec

  64. w גࣜձࣾϝϧϖΠ΁ग़޲ w εϚϗͰ؆୯ʹܾࡁ͕Ͱ͖ΔαʔϏεͷϝϧϖΠΛϦϦʔε w ೔ຊશࠃͷ͓ళͰ࢖͑Δ w ϝϧΧϦͷച্͕ۚ࢖͑Δ w ΧελϚʔαϙʔτ΍ࣄۀऀ৹ࠪͰඞཁͳ.JDSPTFSWJDFTͷ։ൃ

    w ओʹ৹ࠪ࣌ؒͷ୹ॖʢࣗಈʣԽ΁ߩݙ Jan - Mar, Apr - Jun

  65. Develop Service B Test Deploy Operate Service B Team Develop

    Service A Test Deploy Operate Service A Team Develop Service C Test Deploy Operate Service C Team Release Flow

  66. IUUQTTQFBLFSEFDLDPNDPEFIFYDISPNFBTBTFSWJDFJOHP

  67. ιϑτ΢ΣΞΤϯδχΞͱͯ͠ ಇ͍ͯΈͯ

  68. خ͍͠ɺָ͍͜͠ͱ

  69. w େྔͷιʔείʔυͷதʹҳࡐͳίʔυΛݟ͚ͭͨ࣌ w 1)1෼͔Βͳ͍ɺͰ΋͜͏͍͏΍Γํ͕͋Δͷ͔ʜ w εʔύʔΤϯδχΞ͕ίϝϯτʹ࢒ͨ͠࠷ߴͷυΩϡϝϯτΛ
 ݟ͚ͭͨ࣌ w ࣗ෼ͰΦʔφʔγοϓΛ࣋ͬͯ։ൃ͍ͯ͘͠ w

    ઃܭɺΞʔΩςΫνϟͷબ୒ w %#ͳͲͷϛυϧ΢ΣΞͷௐ੔ w αʔϏεΛ࡞ΔաఔͰੜ·ΕͨϥΠϒϥϦΛҭ͍ͯͯ͘ w ຍ࠿ͱҰॹ

  70. ΍Γ͕͍

  71. w ઃܭͰࣗ෼ͷߟ͕͑ਖ਼͍͔͠ɺͦͷಓͷϓϩʹͿ͚ͭΒΕΔ࣌ w ٞ࿦͕௕Ҿ͍ͯɺࣗ෼ͷҙݟ͕௨ΔͱΊͬͪΌؾ͍͍࣋ͪ w ࣗ෼ͷ࡞ͬͯΔػೳ͕͓٬༷ʹتΜͰ΋ΒͬͯΔ࣌ w ϦϦʔεͨ͠ޙʹΤΰαͯ͠Δ w ͦͷ༷ࢠΛݟͳ͕ΒνʔϜͰඒຯ͍͠͝൧৯΂ʹߦ͘

    w ίετ࡟ݮͰ͖ͨͱ͖ͷ૘շײ w ύζϧ͕ղ͚ͨ࣌Έ͍ͨͳײ͡

  72. ࣾձਓʹͳͬͯ

  73. w d·Ͱ͕ίΞλΠϜ w ͜ͷ࣌ؒͷؒۈ຿͍ͯ͠Ε͹޷͖ͳ࣌ؒʹग़ࣾɺୀࣾͰ͖Δ w ޷͖ͳ֨޷Ͱग़ࣾ w ͍͍ͩͨδʔϯζɺՆ͸αϯμϧ w ෭ۀਪ঑ͳͷͰ෭ۀ΋ͯ͠Δ

    w ࠷ॳ͸ࣗਬ͚ͯͨ͠Ͳɺ࠷ۙ໘౗ʹͳͬͯ֎৯͹͔Γ w ۙྡͷҿ৯ళ͍͍͕ͩͨৗ࿈ w ԕ͘ͷ͓ళʹߦ͘Α͏ʹͯ͠Δ w ձࣾͷਓͱͷҿΈձ΋૿͑ͨ w ޷͖ͳ͚ͩίʔυΛॻ͍͕ͯ΋Β͑Δ

  74. ͍͍͜ͱ͹͔Γʜ

  75. w ΋ͪΖΜਏ͍ͱ͖΋͋Δ w Ͱ͖Δ͚ͩҰਓͰ๊͑ࠐ·ͳ͍Α͏ʹͯ͠Δ w ࣗ༝ͳ؀ڥͳͨΊɺࣗ෼͕ಇ࣌ؒ͘Λௐ੔͠ͳ͍ͱ͍͚ͳ͍ w ϑϨοΫε੍ͱ͸͍͑ɺ݄Ͱಇ͔ͳ͖Ό͍͚ͳ͍࣌ؒ͸ܾ·ͬͯΔ w ಇ͖͗͢Δਓ͸͍ͳ͍͚Ͳۤઓͯ͠Δͱ͖͸࢒ۀ͕ͪ͠

    w ͦͷ࣌ͷ࣮ྗͱܦݧͱ؀ڥʢӡʣ͕ࠨӈ͢Δؾ͕͢Δʜ

  76. w ΋ͪΖΜਏ͍ͱ͖΋͋Δ w Ͱ͖Δ͚ͩҰਓͰ๊͑ࠐ·ͳ͍Α͏ʹͯ͠Δ w ࣗ༝ͳ؀ڥͳͨΊɺࣗ෼͕ಇ࣌ؒ͘Λௐ੔͠ͳ͍ͱ͍͚ͳ͍ w ϑϨοΫε੍ͱ͸͍͑ɺ݄Ͱಇ͔ͳ͖Ό͍͚ͳ͍࣌ؒ͸ܾ·ͬͯΔ w ಇ͖͗͢Δਓ͸͍ͳ͍͚Ͳۤઓͯ͠Δͱ͖͸࢒ۀ͕ͪ͠

    w ͦͷ࣌ͷ࣮ྗͱܦݧͱ؀ڥʢӡʣ͕ࠨӈ͢Δؾ͕͢Δʜ

  77. w ࣾձਓҰ೥໨ w ॳΊͯͷࣾձਓͳͷͰܦݧ͕ͳ͍ w ؀ڥʢӡʣΛྑ͘͢Δํ๏͕͋Δͷ͔ʜ  w ͋Δ͔΋͠Εͳ͍͚Ͳ๻͸஌Βͳ͍ w

    ػձΛ૿΍ͨ͢Ίʹ৭Μͳਓʹग़ձ͏ͷ͸༗Γͩͱࢥ͏ w ࣮ྗͳΒ஁͑ํ࣍ୈͰ޲্͢Δ
  78. None

  79. Good programmer copies

  80. w ʬ໊ɾεଞʭࣸ͠ɻෳࣸʢ͢Δ͜ͱʣɻʮॻྨΛʕ͢ΔʯʮผͷهԱഔମ ʹʕ͢ΔʯʮʕΛऔΔʯɻ໛฿ʢ͢Δ͜ͱʣɻ໛଄඼ɻ IUUQTKBXJLJQFEJBPSHXJLJ&#&&#$ ίϐʔ

  81. w ઌਓͷ໛฿͢Δ w େ఍ͷ͜ͱ͸طʹରॲ͞Ε͍ͯΔ w ࣗ෼͕਎ʹ͚͍ͭͨεΩϧͷಓͷϓϩΛ໛฿͢Δ w ޮ཰Α͘৘ใऩूͷεΩϧ w ϞνϕʔγϣϯΛҡ࣋͢ΔεΩϧ

    w ௕͘׆༻Ͱ͖ΔΑ͏ͳεΩϧ w How to copy for your skill

  82. w ઌਓͷ໛฿͢Δ w େ఍ͷ͜ͱ͸طʹରॲ͞Ε͍ͯΔ w ࣗ෼͕਎ʹ͚͍ͭͨεΩϧͷಓͷϓϩΛ໛฿͢Δ w ޮ཰Α͘৘ใऩूͷεΩϧ w ϞνϕʔγϣϯΛҡ࣋͢ΔεΩϧ

    w ௕͘׆༻Ͱ͖ΔΑ͏ͳεΩϧ w શͯΛԿ΋ߟ͑ͣʹؙύΫϦ͢ΔΘ͚͡Όͳ͍ How to copy for your skill

  83. Great programmer pastes

  84. w ίϐʔͨ͠΋ͷΛผͷ৔ॴͳͲ΁ϖʔετʢసࣸɾష෇ʣ͢Δͱ͍͏ૢ࡞ Λද͢ίϯϐϡʔλ༻ޠͰ͋Δɻ IUUQTKBXJLJQFEJBPSHXJLJίϐʔɾΞϯυɾϖʔετ ϖʔετ

  85. w ໛฿ͨ͜͠ͱΛΞ΢τϓοτ͢Δ w ໛฿ͯ͠ͳ͍͜ͱ΋Ξ΢τϓοτ͢Δ w ࣗ෼͕ಘͨεΩϧΛ࣍ͷਓʹ޲͚ͯΞ΢τϓοτ͢Δ w ϒϩά΍4/4౳ɺΦϯϥΠϯͰਓ໨ʹͭ͘ͱ͜Ζ w ΋ͪΖΜ௚઀ڭ͑ͯ͋͛Δͷ΋Ξ΢τϓοτ

    w ͜ΕΛ܁Γฦ͢ͱࣅͨଐੑͷਓ຺΋޿͕Δ How to paste your skill

  86. ίϐϖͰ࠷ߴͷਓࡐ΁

  87. ·ͱΊ

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