Event Sourcing,CQRS For PHP Application

Transcript

1. 1.

   Event Sourcing CQRS For PHP Application yuuki takezawa phpcon fuk

   2018
2. 2.

   ͸ͳ͢͜ͱ • Event • CQRS • Event Sourcing + CQRS

   • Event Sourcing / Message Broker • ࣮ྫ
3. 3.

   ͸ͳ͞ͳ͍͜ͱ • DDD • Lambda Architecture • Kappa Architecture •

   Apache Sparkʹ͍ͭͯ
4. 4.

   DDDͱҰॹʹड़΂ΒΕΔ͜ͱ͕ଟ͍Ͱ͕͢ɺ େن໛ͳσʔλॲཧͰ΋׆༻Ͱ͖Δύλʔϯ

5. 5.

   όονॲཧ͕ଟ͍ΞϓϦέʔγϣϯ΍ɺ ෳ਺ͷσʔλϕʔεؒͰ σʔλಉظΛ͢ΔΞϓϦέʔγϣϯʹ΋

6. 6.

   None
7. 7.

   Event / Application Side

8. 8.

   Event? • Observerύλʔϯ • ʙͨ࣌͠ʹɺʙ͢Δ Λදݱ͢Δ • PHPͷ༷ʑͳΞϓϦέʔγϣϯͰར༻͞Ε͍ͯΔ • \SplObserver,

   SplSubject
9. 9.

   Event / PHP • Symfony Event Dispatcher • Illuminate Events

   (Laravel) • Zend Event Manager • RxPHP • ReactPHP
10. 10.

    Event / PHP • γεςϜ౎߹ͰऔΓೖΕΔέʔε΋ଟ͍ • Request͕དྷͨΒɺRouteΛىಈͤ͞Δ • ʙͷॲཧ͕׬ྃͨ͠Βɺϩάʹॻ͖ग़͢

11. 11.

    public function __invoke( FulltextRequest $request ): RedirectResponse { // ొ࿥ॲཧޙʹevent

    try { $entity = new Entity(1, ‘testing’); $this->dispatcher->dispatch( new SinkConnect($this->usecase->run($entity)) ); } catch(\RuntimeException $e) { // Կ͔errorॲཧ } return $this->redirector->route('fulltext.index'); }
12. 12.

    Domain Event

13. 13.

    Event • υϝΠϯϞσϧ಺Ͱൃੜ͢Δग़དྷࣄ / υϝΠϯΠϕϯτ • ʙͨ࣌͠ʹɺʙ͢Δ Λදݱ͢Δ • υϝΠϯϞσϧΛލΔ΋ͷʹ஫໨͢Δ

    • ۀ຿తͳ؍఺͔ΒΠϕϯτͱͯ͠ѻ͏͔
 ܦաΛແࢹ͢΂͖͔Ͳ͏͔ͳͲ
14. 14.

    Domain Event + Observer in PHP

15. 15.

    ҰͭͷPHPΞϓϦέʔγϣϯͷ৔߹ • υϝΠϯϞσϧ಺ͷग़དྷࣄΛ
 ObserverΛ࢖࣮ͬͯ૷͢Δ • ΞϓϦέʔγϣϯͷΫϥε͕ංେԽͨ࣌͠
 খ͞ͳΫϥεʹ෼ׂ͢Δ৔߹΍ɺ
 ϦϑΝΫλϦϯάʹར༻͢Δ͜ͱ΋
 • ୯ҰͷΞϓϦέʔγϣϯ಺Ͱ࣮૷͢Δ৔߹ʹ༗༻


    (1ϓϩηεΏ͑)
16. 16.

    ߟྀ͢Δ͜ͱ • ϚΠΫϩαʔϏεͰ࿈ܞ͢Δ৔߹͸Ͳ͏͢΂͖͔ • ʙͨ࣌͠ʹɺʙ͢Δ
 ଞͷΞϓϦέʔγϣϯɾݴޠͰ࣮ߦ͞ΕΔ͔
 ੾Γग़͢ඞཁ͕͋Δ͔Ͳ͏͔

17. 17.

    ߟྀ͢Δ͜ͱ • ෳ਺ͷΞϓϦέʔγϣϯͱ࿈ܞͨ͠৔߹ͷো֐෮چ
 ϩάΛग़ྗ͍ͯ͠Δ͚ͩͰࡁΉ͔Ͳ͏͔ • ݁ՌΛσʔλϕʔεʹอଘ͠ɺ
 ΞϓϦέʔγϣϯͷσʔλͱͯ͠׆༻
 ݁ՌʹࢸΔ·Ͱͷաఔ͸ඞཁ͔Ͳ͏͔ • ཤྺσʔλอଘ͚ͩͰࡁΉ͔Ͳ͏͔

18. 18.

    ݎ͘ɺͦͯ͠ো֐ʹ΋ڧ͍ ΞϓϦέʔγϣϯʹ͠ͳ͚Ε͹ͳΒͳ͍

19. 19.

    Event Sourcing

20. 20.

    Event Sourcing • ΠϕϯτΛه࿥ͯ͠࠶ݱ͢Δύλʔϯ • ΠϕϯτΛΠϕϯτετΞʹอଘ • ه࿥͞ΕͨΠϕϯτ͔ΒΦϒδΣΫτΛ෮ݩͰ͖Δ • ΠϕϯτʴϩάʴΦϒδΣΫτɺΠϕϯτ͸ෆม

    • ൃੜͨ͠ࣄ࣮Λ఻͑Δ
21. 21.

    Event SourcingΛಋೖ͢΂͖Ͱ͸ͳ͍৔߹ • ΠϕϯτΛه࿥ͯ͠࠶ݱ͢Δඞཁ͕ͳ͍৔߹ • ه࿥͞ΕͨΠϕϯτ͔Β
 ΦϒδΣΫτΛ෮ݩ͢Δ͜ͱ͕ͳ͍৔߹ • খن໛ͳΞϓϦέʔγϣϯɺ
 γϯϓϧͳCRUD͔͠ͳ͍ΞϓϦέʔγϣϯ

    • ࢀরΑΓ΋ॻ͖ࠐΈ͕ϝΠϯͷΞϓϦέʔγϣϯ
22. 22.

    Event Sourcing • PHPͰͲ͏΍࣮ͬͯ૷͢Δ͔ʁ • RDBMSͱ૊Έ߹ΘͤͯશͯͷΠϕϯτ৘ใΛอ؅ʁ • େن໛ͳσʔλʹ͸ରԠͰ͖Δ͔ʁ • ר͖໭͠ͷॲཧ͸Ͳ͏͢Δ͔ʁ

23. 23.

    Asynchronous / Synchronous Event

24. 24.

    ಉظΠϕϯτ • Πϕϯτ͸ಉظॲཧͰ͋Δ΂͖͔Ͳ͏͔
 Πϕϯτൃੜ࣌ʹଈ࠲ʹଞΞϓϦέʔγϣϯʹ൓ө͢Δ ඞཁ͕͋Δ͔ • ΠϕϯτൃߦɺΠϕϯτཤྺอ࣋ɺ
 αϒεΫϥΠόʹΑΔσʔλӬଓԽΛߦ͏

25. 25.

    ඇಉظΠϕϯτ • Πϕϯτ͸ඇಉظʹͰ͖Δ͔Ͳ͏͔
 Πϕϯτ͕ൃੜͨ͜͠ͱΛ୲อ͠ɺ
 ଞΞϓϦέʔγϣϯ΁ͷ൓ө͸஗Ԇͤͯ͞΋Α͍͔ • ΠϕϯτൃߦɺΠϕϯτཤྺอ࣋·Ͱ
 σʔλӬଓԽ͸஗ԆͰ࣮ߦ͞ΕΔ
 (χΞϦΞϧλΠϜఔ౓)

26. 26.

    CQRS

27. 27.

    ΞϓϦέʔγϣϯͷ੒௕Ͱൃੜ͢Δ໰୊ • σʔλϞσϧͱύϑΥʔϚϯε • αʔϏε੒௕ͱڞʹ૿͑ΔෳࡶͳΫΤϦͱ૿͑Δ༰ྔ • σʔλͷਖ਼͠͞(ਖ਼نԽ)͔ޮ཰Խ͔(ඇਖ਼نԽ) • RDBMSͷෆಘҙ෼໺ +

    NoSQLʹΑΔΧόʔ
 ಉظํ๏ͷෳࡶԽ
28. 28.

    σʔλϕʔεઃܭͷ೰Έ • ਖ਼نԽͱநग़͍ͨ͠σʔλͷΪϟοϓ • நग़͍ͨ͠σʔλʹ߹ΘͤͨઃܭΛ͢Δ͜ͱʹΑΔ
 ੍໿͕͔͚ΒΕͳ͍δϨϯϚ • ࣮૷ίʔυͰ୲อ͢ΔͨΊʹෳࡶԽ • ಛఆͷσʔλϕʔεʹରͯ͠ͷCRUDʹґଘͨ͠ߟ͑

29. 29.

    ਖ਼نԽ͸͢΂͖ʂ

30. 30.

    ϏδωεཁٻʹରԠ͢ΔͨΊʹ
 σʔλϕʔεͰશͯରԠ͢Δͷ͸ਖ਼͍͔͠ ਖ਼نԽɺඇਖ਼نԽ͸
 ಉ࣠͡Ͱߟ͑Δ΂͖Ͱ͸ͳ͍

31. 31.

    Ϗδωεཁٻ γεςϜ౎߹(ϑϨʔϜϫʔΫͳͲ) Ϋϥεઃܭ γϯϓϧ͞ ύϑΥʔϚϯε

32. 32.

    CQRS "A few myths about CQRS". Ouarzy's Blog. 
 http://www.ouarzy.com/2016/10/02/a-few-myths-about-cqrs/

    ࢀর
33. 33.

    CQRSͱ͸Կ͔ • ॻ͖ࠐΈ(෭࡞༻͋Γ)ͱ
 ಡΈࠐΈ(෭࡞༻ͳ͠)Λ෼཭͢Δ • ෭࡞༻͋Γ͸σʔλͳͲʹԿΒ͔ͷมߋΛ༩͑Δ΋ͷ
 • ॻ͖ࠐΈ => Command


    • ಡΈࠐΈ => Query
34. 34.

    CQRS • ͋ΒΏΔϝιου͸ɺΞΫγϣϯΛ࣮ߦ͢ΔίϚϯυ ͔ɺݺͼग़͠ݩʹσʔλΛฦ͢ΫΤϦ͔ͷ͍ͣΕ͔Ͱ ͋ͬͯɺ྆ํΛߦͬͯ͸ͳΒͳ͍ɻ͜Ε͸ɺ࣭໰Λ͢Δ ͜ͱͰճ౴ΛมԽͤͯ͞͸ͳΒͳ͍ͱ͍͏͜ͱͩɻ
 
 "Greg YoungྲྀCQRS -

    Mark Nijhof". Digital Romanticism. 
 http://d.hatena.ne.jp/digitalsoul/20100712/1278886009 ࢀর 

35. 35.

    Command • ੔߹ੑ
 ੍໿Λ͔͚ͯਖ਼͘͠ɺݎ͘ • ॻ͖ࠐΈɺߋ৽ɺ࡟আॲཧ͸
 ಡΈࠐΈʹൺ΂ͯޮ཰ੑ΍଎౓ɺ
 εέʔϥϏϦςΟΛҙࣝ͢Δ͜ͱ͸͋·Γͳ͍

36. 36.

    Query • ੔߹ੑΑΓ΋ݕࡧޮ཰ • ΄ͱΜͲͷΞϓϦέʔγϣϯʹ͓͍ͯɺ
 ॻ͖ࠐΈΑΓ΋ݕࡧͷൺॏ͕େ͖͍͜ͱ͕΄ͱΜͲ • εέʔϧ͕༰қͰ͋Δ͜ͱɺ
 ߴ଎ͳύϑΥʔϚϯεͰ͋Δ͜ͱ

37. 37.

    PHPΞϓϦέʔγϣϯ޲͚
 Command, Query෼཭࣌ͷσʔλϕʔε

38. 38.

    Command

39. 39.

    Query

40. 40.

    Query

41. 41.

    Query

42. 42.

    Query

43. 43.

    Query

44. 44.

    Query

45. 45.

    CQRS Application Application

46. 46.

    ཧ۶͸Θ͔Δ͚Ͳɺ Ͳ͏࣮૷͢Ε͹͍͍ͷ͔ʁ ಉظ͸Ͳ͏͢Δͷʁ

47. 47.

    Event Sourcing + CQRS

48. 48.

    Event Sourcing / Command Event Application Command RDBMS

49. 49.

    Event Sourcing / Command Event Application Command RDBMS ΞϓϦέʔγϣϯ͔Β ॻ͖ࠐΈࢦࣔ(class)

50. 50.

    Event Sourcing / Command Event Application Command RDBMS ΞϓϦέʔγϣϯ͔Β ॻ͖ࠐΈࢦࣔ(class)

    σʔλϕʔεʹinsert
51. 51.

    Event Sourcing / Command Event Application Command RDBMS ΞϓϦέʔγϣϯ͔Β ॻ͖ࠐΈࢦࣔ(class)

    σʔλϕʔεʹinsert ਖ਼ৗʹॻ͖ࠐ·Εͨ ࣄ࣮Λฦ٫
52. 52.

    Event Sourcing / Command Event Application Command RDBMS ΞϓϦέʔγϣϯ͔Β ॻ͖ࠐΈࢦࣔ(class)

    σʔλϕʔεʹinsert ਖ਼ৗʹॻ͖ࠐ·Εͨ ࣄ࣮Λฦ٫ ࣄ࣮ʹج͍ͮͨ
 ΠϕϯτΛൃߦ
53. 53.

    Event Sourcing / Command Event Application Command RDBMS Transaction

54. 54.

    Event Sourcing / Query Event / Listener Application NoSQL Query

55. 55.

    Event Sourcing / Query Event / Listener Application NoSQL Query

    EventͷൃߦΛݕ஌͠ NoSQLʹσʔλΛૠೖ
56. 56.

    Event Sourcing / Queryྫ Event / Listener Application NoSQL Query

    EventͷൃߦΛݕ஌͠ NoSQLʹσʔλΛૠೖ Application͔ΒQuery
 நग़໰͍߹Θͤ
57. 57.

    Event Sourcing / Query Event / Listener Application NoSQL Query

    EventͷൃߦΛݕ஌͠ NoSQLʹσʔλΛૠೖ Application͔ΒQuery
 நग़໰͍߹Θͤ NoSQLʹ໰͍߹Θͤ υϝΠϯʹ࠷దԽ͞Εͨ΋ͷΛظ଴
58. 58.

    Event Sourcing / Query Event / Listener Application NoSQL Query

    EventͷൃߦΛݕ஌͠ NoSQLʹσʔλΛૠೖ Application͔ΒQuery
 நग़໰͍߹Θͤ NoSQLʹ໰͍߹Θͤ υϝΠϯʹ࠷దԽ͞Εͨ΋ͷΛظ଴ ݁ՌΛฦ͢ͷΈ
59. 59.

    Cache System σʔλϕʔεߋ৽
 $PNNBOE σʔλϕʔεߋ৽׬ྃΠϕϯτ
 &WFOU
    4PVSDJOH σʔλϕʔεߋ৽׬ྃݕ஌
 &WFOU
    -JTUFOFS Ωϟογϡ࡟আͳͲ

60. 60.

    Structure Event Publisher Command Query Event Subscriber

61. 61.

    Structure Event Publisher Command Query Event Subscriber ੹຿͸ॻ͖ࠐΈͷΈ

62. 62.

    Structure Event Publisher Command Query Event Subscriber ੹຿͸ॻ͖ࠐΈͷΈ ੹຿͸ಡΈࠐΈͷΈ

63. 63.

    Structure Event Publisher Command Query Event Subscriber ੹຿͸ॻ͖ࠐΈͷΈ ੹຿͸ಡΈࠐΈͷΈ ੹຿͸Eventૹ৴ͷΈ

64. 64.

    Structure Event Publisher Command Query Event Subscriber ੹຿͸ॻ͖ࠐΈͷΈ ੹຿͸ಡΈࠐΈͷΈ ੹຿͸Eventૹ৴ͷΈ

    ੹຿͸Eventड৴ͱ
 ॻ͖ࠐΈ
65. 65.

    Event Sourcing • CommandɺQueryɺEvent Sourcing͸
 ผΞϓϦέʔγϣϯɾݴޠͰ࣮૷Ͱ͖Δ͘Β͍ͷ
 γϯϓϧ͞ • EventอଘͱυϝΠϯʹରԠͨ͠QueryΛͲ͏΍ͬͯ
 ޮ཰తʹ࣮૷͢Δ͔

66. 66.

    ΞϓϦέʔγϣϯ෼ׂྫ

67. 67.

    ΞϓϦέʔγϣϯ෼ׂྫ PHP WebΞϓϦέʔγϣϯ webΞϓϦ։ൃνʔϜ

68. 68.

    ΞϓϦέʔγϣϯ෼ׂྫ PHP WebΞϓϦέʔγϣϯ webΞϓϦ։ൃνʔϜ ूܭॲཧ push etc CLI։ൃνʔϜ / DWH

    etc
69. 69.

    ΞϓϦέʔγϣϯ෼ׂྫ PHP WebΞϓϦέʔγϣϯ webΞϓϦ։ൃνʔϜ ूܭॲཧ push etc CLI։ൃνʔϜ / DWH

    etc ޿ࠂ഑৴ܥAPI ޿ࠂ഑৴։ൃνʔϜ
70. 70.

    ΞϓϦέʔγϣϯ෼ׂྫ PHP WebΞϓϦέʔγϣϯ webΞϓϦ։ൃνʔϜ ूܭॲཧ push etc CLI։ൃνʔϜ / DWH

    etc ޿ࠂ഑৴ܥAPI ޿ࠂ഑৴։ൃνʔϜ ϢʔβʔͷӾཡ৘ใʹج͍ͮͨ ৘ใ͕ཉ͍͠Ͱ͢ ϦΞϧλΠϜͰ
71. 71.

    Event Sourcing / Message Broker

72. 72.

    Event SourcingͱMiddlewareબఆ • PubSubͰشൃੑͷͳ͍΋ͷΛબ୒͢Δ • ϝοηʔδอ؅͕ՄೳͰɺ࠶ݱ͢Δ͜ͱ͕Մೳͳ΋ͷ Λ࠾༻͢Δͷ͕๬·͍͠ • εέʔϥϒϧͰ͋Δ͜ͱ

73. 73.

    Event Sourcing / RDBMS • PubSubͰشൃੑͷͳ͍΋ͷΛબ୒͢Δ
 ͦΜͳػೳ͸ͳ͍ͷͰόονॲཧͳͲͰ
 ఆظతʹσʔλ௥Ճ͕͋Δ͔Ͳ͏͔Λݕࡧ͢Δ
 • ϝοηʔδอ؅͕ՄೳͰɺ࠶ݱ͢Δ͜ͱ͕Մೳͳ΋ͷΛ࠾༻͢Δͷ

    ͕๬·͍͠
 ಘҙ෼໺ • εέʔϥϒϧͰ͋Δ͜ͱ
 SlaveͳͲΛ૿΍͢͜ͱͰରԠ͸Ͱ͖Δ
74. 74.

    Event Sourcing / Redis • PubSubͰشൃੑͷͳ͍΋ͷΛબ୒͢Δ
 PUBLISH SUBSCRIBEͳͲ͕͋ΔͷͰ࣮ݱ͸Ͱ͖Δ͕ɺ
 شൃੑʹ͍ͭͯ͸ઃఆͰؤுΔ
 •

    ϝοηʔδอ؅͕ՄೳͰɺ
 ࠶ݱ͢Δ͜ͱ͕Մೳͳ΋ͷΛ࠾༻͢Δͷ͕๬·͍͠
 ͋·ΓಘҙͰ͸ͳ͍(τϥϯβΫγϣϯͳ͠) • εέʔϥϒϧͰ͋Δ͜ͱ
 ༰қʹͰ͖Δ
75. 75.

    None
76. 76.

    Message Broker

77. 77.

    None
78. 78.

    Apache Kafka • ZookeeperΛར༻ͨ͠ΫϥελϦϯάʹΑΔߴՄ༻ੑ • ϝοηʔδͷӬଓԽɺϨϓϦέʔγϣϯɺ࠶औಘՄ • ϏοάσʔλରԠ • ετϦʔϜରԠͷϝοηʔδϯάϛυϧ΢ΣΞ

    • Kafka ConnectʹΑΔपลγεςϜͱͷߴ͍਌࿨ੑ
 (Amazon kinesisͱ΄΅ಉ͡)
79. 79.

    Event Sourcing • ΠϕϯτΛΠϕϯτετΞʹอଘ
 Kafkaࣗମʹอଘ͢Δ͜ͱ͕Ͱ͖ɺ
 σʔλϕʔεʹసૹՄೳ • ه࿥͞ΕͨΠϕϯτ͔ΒΦϒδΣΫτΛ෮ݩͰ͖Δ
 ॲཧ͞ΕͨΠϕϯτ͸࠶ൃߦՄೳ •

    ΠϕϯτʴϩάʴΦϒδΣΫτɺΠϕϯτ͸ෆม
 ൃߦޙͷΠϕϯτΛॻ͖׵͑Δ͜ͱ͸Ͱ͖ͳ͍ • ൃੜͨ͠ࣄ࣮Λ఻͑Δ
 τϥϯβΫγϣϯ͋Γ
80. 80.

    ϝοηʔδͷܽଛʹ͍ͭͯ ૹ৴ࣦഊ BDLड৴ࣦഊ #SPLFSμ΢ϯ ϝοηʔδड৴ࣦഊ

81. 81.

    ϝοηʔδ఻ୡͷอূ • At least once semantics
 ॏෳΛڐՄ • At most

    once semantics
 ܽଛΛڐՄ • Exactly once semantics
 ॏෳɺ͓ΑͼܽଛΛڐՄ͠ͳ͍
 
 "Exactly-once Semantics are Possible: Here’s How Kafka Does it". Confluent APACHE KAFKA. 
 https://www.confluent.io/blog/exactly-once-semantics-are-possible-heres-how-apache-kafka-does-it/ ࢀর
82. 82.

    Performance?

83. 83.

    Apache Kafka֓ཁ • Partition
 ෛՙ෼ࢄ༻్ʹར༻
 ෳ਺ͷConsumer͕ͦΕͧΕͷPartitionΛࢀর͠ɺ
 ͦΕͧΕ͕ॲཧΛߦ͏
 ॲཧϑϩʔͷσβΠϯʹΑͬͯଟ༷ͳར༻ํ๏ • librdkafka͕ඇৗʹߴ଎


    PHPͰ͸rdkafka(librdkafkaϥοϓ)
84. 84.

    Example Partition

85. 85.

    Performance • confluent: 250000 records, 34.84177593s • sarama-cluster: 250000 records,

    2m20.614963038s
 • confluent was almost 5x faster on the read.
86. 86.

    Consumer

87. 87.

    Kafka Connect • Kafka Connectͱ͸ɺ
 पลγεςϜ͔ΒͷσʔλΛऔΓࠐΈ(Source)ɺ
 σʔλૹ৴(Sink)ͷೋछྨΛαϙʔτ͢Δػೳ • Amazon SQS΍MongoDBͷσʔλΛKafkaͰऔࠐΉɺ


    ϝοηʔδΛͦͷ··Elasticsearch΍RDBMSʹ֨ೲɺ
 ͕ߦ͑Δ • Connect͸ࣗ༝ʹ֦ுͯ͠ಠࣗConnectΛ࣮૷Մೳ
88. 88.

    Kafka Connect • γϯϓϧͳέʔεͰ͋Ε͹ɺ
 ಛʹ࣮૷͢Δ͜ͱͳ͘QueryΛαϙʔτ • Consumer͸ผΞϓϦέʔγϣϯͱͯ͠
 ෼ׂ͢Δͷ΋͍͍Ͱ͠ΐ͏ • ෳࡶͳσʔλΛ࡞੒͢ΔͷͰ͋Ε͹


    ConsumerͰσʔλΛ૊Έ߹ΘͤΔ
89. 89.

    Structure Event Publisher Command Query Event Subscriber Application ੹຿͸ಡΈࠐΈͷΈ ੹຿͸Eventૹ৴ͷΈ

    WebΞϓϦέʔγϣϯ ͔Β੾Γग़͢
90. 90.

    Event Sourcing+ CQRS / Kafka • Command QueryΛ୲౰͢ΔWebΞϓϦέʔγϣϯΛ
 γϯϓϧʹ •

    Event SourcingʹΑͬͯɺΞϓϦέʔγϣϯʹՁ஋Λ௥ Ճ͢Δ͜ͱ͕Ͱ͖Δ(෼ੳͳͲ) • Command QueryͷಉظΛαϙʔτ͠ɺ
 ΞϓϦέʔγϣϯʹ߹Θͤͯෛՙ෼ࢄ͕༰қ
91. 91.

    ఆظߋ৽ͤ͞Δόονॲཧͷߟ͑ํ΋มΘΔ

92. 92.

    ྫ

93. 93.

    Example

94. 94.

    Example: Produce Ϣʔβʔͷ࣌ܥྻߦಈϩά͕
    QIQ
    SELBGLBܦ༝ͰૹΒΕͯ͘Δ

95. 95.

    Example: Kafka "QBDIF
    ,BGLB
    
    "QBDIF
    ;PPLFFQFS
    
    QBSUJUJPO
    
    ϲ݄͘Β͍Ͱԯ͘Β͍
 ΞϓϦέʔγϣϯ΁ͷো֐ɾऔΓ͜΅͠ͳ͠

96. 96.

    Example: Consume σʔλϕʔεΛ݁߹ͯ͠ϏδωεϩδοΫٵऩ
    QVTI௨஌ࢦࣔͳͲΠϕϯτΛૹ৴
    ଞαʔϏε͕SBCCJUNRΛ࢖͍ͬͯΔͨΊ

97. 97.

    Example: Cassandra $BTTBOESB
    
    $MVTUFS
    ԯͪΐͬͱ͘Β͍ 55-͋ΓͷͨΊ
    ো֐ͳ͠ɾίϯύΫγϣϯఆظ࣮ߦͰ
    τϥϒϧͳ͠

98. 98.

    Example: Cassandra ͜͜·Ͱ਺NTҎ಺Ͱऴྃ͢ΔͨΊɺ
    ΄΅ϦΞϧλΠϜͰ൓ө͞ΕΔ

99. 99.

    ଞ • ίϯςϯπͷσʔλΛKafkaܦ༝Ͱऩू͠HDFS֨ೲ
 SparkʹΑΔ෼ੳॲཧޙ Cassandra֨ೲ
 ΞϓϦέʔγϣϯ͔Β͸Cassandraʹ
 γϯϓϧͳΫΤϦΛ౤͛ΔͷΈʹ • Event Sourcing,

    CQRSͷ૊Έ߹ΘͤʹΑΓ
 Ωϟογϡੜ੒΍σʔλ࠷దԽʹΑΓߴ଎Խʹߩݙ

100. 100.

     Now

101. 101.

     େࡶ೺ͳαϯϓϧ͸ԼهΛࢀর͍ͩ͘͞
 https://github.com/ytake/laravel-presto- kafka-demo

102. 102.

     ·ͱΊ • େن໛ʹͳΔ͜ͱ͕༧ଌͰ͖ͨΒ
 ಋೖʹνϟϨϯδ • ҰͭͷϑϨʔϜϫʔΫ͚ͩͰ΍Ζ͏ͱ͠ͳ͍͜ͱ • ϛυϧ΢ΣΞͷ஌ࣝ͸ඞཁʹ • DDDͷ؍఺͚ͩͰ͸ͳ͘ɺ


     ෼ࢄॲཧ΍ෳࡶͳσʔλॲཧͷ
 ϦϑΝΫλϦϯάʹ΋׆͖Δύλʔϯ