Actor Model meets the Kubernetes - CNDT 2019

1. Actor Model meets the Kubernetes Cloud Native Days Tokyo 2019 ৿ຊਅҰ @shnmorimotoʢFringe81גࣜձࣾʣ
2. ࣗݾ঺հ • ໊લɿ৿ຊ ਅҰ • twitter: @shnmorimoto • github: github.com/shnmorimoto • ॴଐɿFringe81 גࣜձࣾ • ࢓ࣄɿ޿ࠂܥϓϩμΫτɾόοΫΤϯυΤϯδχΞ • ྖҬɿScala, Elm, Azure, Kubernetes
3. Fringe81 • ࿡ຊ໦ͷձࣾ • Ad Techܥ/HR TechܥͷྖҬͰ༷ʑͳαʔϏεΛల։ • Ad Tech: docomo Ad Network, GrowLio, … • HR Tech: Unipos
4. ࠓ೔࿩͢͜ͱ/࿩͞ͳ͍͜ͱ • ࿩͢͜ͱ • εςʔτϑϧͳΞϓϦέʔγϣϯʹ͍ͭͯ • εςʔτϑϧͳΞϓϦέʔγϣϯΛ࣮ݱ͢ΔͨΊͷखஈʹͭ ͍ͯʢActorModel/AkkaɾAkka Clusterʣ • Akka ClusterΛk8sͰՔಇͤ͞ΔϝϦοτ • ࿩͞ͳ͍͜ͱ • εςʔτϑϧηοτ
5. εςʔτϨεͳΞϓϦέʔγϣϯ "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   ɾ
   ɾ
   ɾ -# 4DBMF0VU*O
   ͷ੍໿ͳ͠ ো֐ͷ෮چ
   ΋؆୯ • εςʔτϨεͳΞϓϦέʔ γϣϯ • ঢ়ଶΛ࣋ͨͳ͍ • ো֐͕ى͖ͯ΋ɺ෮چ͸ָ • εέʔϦϯάͷ੍໿΋ͳ͠ • ࣮ݱͰ͖Δࣄ͸ඇৗʹݶΒ ΕΔ
6. εςʔτϨεͳΞϓϦέʔγϣϯ + DB "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   -# %# ඞཁͳঢ়ଶΛ
   %#ʹอଘ͢Δʂ ௨ৗɺ༗༻ͳΞϓϦέʔγϣϯΛ࡞੒͢ΔͨΊʹ͸ঢ়ଶΛ%# ౳ʹ࣋ͭඞཁ͕͋Δ
   ͜ΕͰશ͕ͯ໰୊ͳ͘ղܾʁ
7. εςʔτϨεͳΞϓϦέʔγϣϯ + DB "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   -# %# ঢ়ଶΛߋ৽͢ΔͨΊʹ-PDL -PDL͕ղআ͞ΕΔ·Ͱ
   ଴ͭඞཁ͕͋Δ Ϩεϙϯε͕஗͘ͳΔ ಉ͡ঢ়ଶΛෳ਺͔Βߋ৽͠Α͏ͱͨ͠ࡍʹɺϨεϙϯε͕஗͘ͳΔʂ
   ʢঢ়ଶߋ৽͕ෳࡶͳ৔߹͸%FBE-PDL΋ൃੜ͢Δʜʣ ಉҰͷঢ়ଶΛಉ࣌ʹߋ৽͢Δέʔε
8. εςʔτϨεͳΞϓϦέʔγϣϯ + KVS "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   -# ,74 ඞཁͳঢ়ଶΛ
   ,74ʹอଘ͢Δʂ Ϩεϙϯε͕໰୊ʹͳΔͳΒɺ,74ʹ͢Ε͹ྑ͍ʂ
   ͜ΕͰશ͕ͯ໰୊ͳ͘ղܾʁ ଎͍ͧ͒ʂʂʂ
9. εςʔτϨεͳΞϓϦέʔγϣϯ + KVS "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   "QQMJDBUJPO 4FSWFS
   -# ,74 ߋ৽࣌ʹ-PDL͕͔͔Βͳ͍ͷͰɺঢ়ଶͷෆ੔߹͕͓͖ΔՄೳ ੑ͕͋Δ ಉҰͷঢ়ଶΛಉ࣌ʹߋ৽͢Δέʔε ʢઌʹʣঢ়ଶΛߋ৽
   ʂ ʢޙʹʣঢ়ଶΛߋ৽
   ʂ 8*/
10. εςʔτϨεͳΞϓϦέʔγϣϯ + DB/KVS + ??? "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    -# ౰વɺղܾ͢Δखஈ͸৭ʑ͋Δ͕ɺߏ੒͸ෳࡶʹͳΒ͟ΔΛ ಘͳ͍ ಉҰͷঢ়ଶΛಉ࣌ʹߋ৽͢Δέʔε ԿΒ͔ͷ
    ιϦϡʔγϣ ϯʁʁʁʁ
    
11. ݱ୅ͷΞϓϦέʔγϣϯ΁ͷཁٻ 5IF
    3FBDUJWF
    .BOJGFTUP
    IUUQTXXXSFBDUJWFNBOJGFTUPPSH
    ΑΓ ΞϓϦέʔγϣϯ͕
    σϓϩΠ͞ΕΔ৔ॴ͸ϞόΠϧ ͔ΒΫϥ΢υ·Ͱ༷ʑ ϨεϙϯελΠϜ͸ ϛϦඵ ϝϯςφϯεͷμ΢ϯλΠϜ ͸θϩɾμ΢ϯλΠϜ ѻ͏σʔλ͸೔ʑ૿Ճ ͔͠΋ɺݱ୅ͷΞϓϦέʔγϣϯ͸ΑΓෳࡶɺ଎͘ɺམͪͳ ͍͜ͱΛཁٻ͞ΕΔ
12. εςʔτϑϧͳΞϓϦέʔγϣϯ "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    -# ֎෦ʹ͍࣋ͬͯͨঢ়ଶΛΞϓϦέʔγϣϯଆʹ͍࣋ͬͯ͘͜ ͱͰγϯϓϧͳߏ੒ʹͰ͖ΔͷͰ͸ʁ ঢ়ଶ ঢ়ଶ
    ঢ়ଶ
    ঢ়ଶ
    ঢ়ଶ
13. εςʔτϑϧͳΞϓϦέʔγϣϯ "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    -# ֎෦ʹ͍࣋ͬͯͨঢ়ଶΛΞϓϦέʔγϣϯଆʹ͍࣋ͬͯ͘͜ ͱͰγϯϓϧͳߏ੒ʹͰ͖ΔͷͰ͸ʁ ঢ়ଶ
    ঢ়ଶ
    ঢ়ଶ
    ঢ়ଶ ঢ়ଶΛߋ৽
    ʂ
14. εςʔτϑϧͳΞϓϦέʔγϣϯ "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    -# ঢ়ଶ
    ঢ়ଶ
    ঢ়ଶ
    ঢ়ଶ • εςʔτϑϧͳΞϓϦέʔγϣϯ • ঢ়ଶΛ࣋ͭ • ঢ়ଶͷߋ৽͕γϯϓϧʂ • ঢ়ଶΛΞϓϦέʔγϣϯʹ࣋ͭʹ ͸ʁʁʁ • ঢ়ଶΛߋ৽͢ΔͨΊʹద੾ʹScaling/ Balancing͢Δํ๏͸ʁʁʁ • ΞϓϦέʔγϣϯΛ࠶ىಈͨ͠Βঢ় ଶ͕ফ͑ͳ͍ʁʁʁ
15. ঢ়ଶΛΞϓϦέʔγϣϯʹ࣋ͭʹ͸ʁʁʁ
16. Actor Model • ฒߦγεςϜͷϞσϧͷҰछ • ActorʢΞΫλʔʣͱ͍͏֓೦Λಋೖ͠ɺฒߦγεςϜΛ؆қʹѻ͏͜ͱ͕ Ͱ͖Δʢޙड़ʣ • Erlang͕Actor ModelΛ࠾༻͍ͯ͠Δ • Java/ScalaͰ΋Akkaͱ͍͏πʔϧΩοτΛར༻͢Δ͜ͱͰ࣮ݱͰ͖Δ ΞΫλʔϞσϧʢӳ
    BDUPS
    NPEFMʣͱ͸ɺ೥ɺΧʔϧɾώϡʔΠοτɺ1FUFS
    #JTIPQɺ3JDIBSE
    4UFJHFS
    ͕ൃදͨ͠ฒߦܭࢉͷ਺ֶతϞσϧͷҰछɻ
    ग़య
    ϑϦʔඦՊࣄయʰ΢ΟΩϖσΟΞʢ8JLJQFEJBʣʱ
    ຊηογϣϯͰ͸"LLBΛྫʹऔΓɺ"DUPS
    .PEFMʹ͍ͭͯઆ໌͠·͢
17. • Java/Scala޲͚ʹActor ModelΛ࣮ݱ͢ΔπʔϧΩοτ • LightbendࣾʹΑͬͯ։ൃ͞Εɺݱࡏ͸ΦʔϓϯιʔεͰ։ൃ͕ଓ͚ΒΕ͍ͯΔ • ԼهΛ؆қʹ࣮ݱͰ͖Δ • Actor Model • SupervisorʹΑΔো֐ִ཭ɾ෮چʹ༏ΕͨγεςϜͷߏங • ΫϥελϦϯά • ετϦʔϜॲཧ • etc … Akka - ֓ཁ
18. "DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS +7.
19. +7. "DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS w ঢ়ଶΛ࣋ͭ
    w ͦΕͧΕͷ"DUPSͰϩδοΫΛ࣋ͭ
    w ̍ͭ̍ͭͷ"DUPS͕ϓϩηεͷΑ͏ʹৼΔ෣͏ FY
     $POGFSFODF
    /BNF
    
    $MPVE
    /BUJWF
    %BZT
    5PLZP
    
     %BUF
    
    
     FY
     $POGFSFODF
    /BNF
    
    $MPVE
    /BUJWF
    %BZT
    'VLVPLB
    
     %BUF
    
    
     ෳ਺ͷ"DUPS͕Ծ૝ϓϩηεͷΑ͏ʹՔಇ͢Δ
20. +7. "DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS $POGFSFODF໊͸ʁ $MPVE
    /BUJWF
    %BZT
    5PLZP
     ͦΕͧΕͷ"DUPSؒ͸ϝοηʔδΛ௨ͯ͠ඇಉظʹॲཧΛߦ͏
21. "DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS ɾݸʑͷ"DUPS͸ΞυϨεΛ͓࣋ͬͯΓɺͦͷΞυϨεѼʹϝοηʔδΛૹ৴͢Δɻ
    ɾϝʔϧϘοΫεͷΑ͏ͳΩϡʔΛ͓࣋ͬͯΓɺಧ͍ͨϝοηʔδʹ͍ͭͯॱ࣍ॲཧΛߦ͏ +7.
22. "DUPS
     Akka Actor - Supervisionʢิʣ "DUPS
     "DUPS
     "DUPS
     "DUPS ਌ ࢠ ଙ • Actor͸ࣗ਎ͷࢠͱͳ ΔActorΛੜ੒Ͱ͖Δ • ActorؒͰͷ਌ࢠؔ ܎ɺҰछͷπϦʔߏ ଄Λߏ੒Ͱ͖Δ
23. "DUPS
     "DUPS
     "DUPS
     "DUPS
     "DUPS ਌ ࢠ ଙ • ਌Actor͸ࢠActorͷ؂ ಜऀʢSupervisorʣͱ ͳΔ • ࢠActorʹ໰୊͕ൃੜ ͨ͠৔߹ʹఀࢭ΍࠶ى ಈ౳ͷॲཧΛߦ͏ ؂ࢹ ؂ࢹ Akka Actor - Supervisionʢิʣ
24. "DUPS
     "DUPS
     "DUPS
     "DUPS
     "DUPS ਌ ࢠ ଙ • ਌Actor͸ࢠActorʹ໰୊͕ൃੜ͢ ΔͱઓུʹԊͬͯରԠ • ఀࢭ • ࠶ىಈʢActorΛ࠶ੜ੒͢Δʣ • ΤεΧϨʔγϣϯ ໰୊͕ൃੜ "DUPS͕ઓུʹԊͬͯɺରԠ Akka Actor - Supervisionʢิʣ
25. • ActorΛར༻͢Δ͜ͱͰɺΞϓϦέʔγϣϯଆͰঢ়ଶΛ΋ͭ͜ͱ͕Ͱ͖Δ • Actor͸ঢ়ଶ΍ϩδοΫΛ࣋ͭ • Actor͸ͦΕͧΕಠཱ͍ͯ͠Δ • Actorؒͷ௨৴͸ϝοηʔδϯάΛ௨ͯ͠ѻ͏ • Actor͸SupervisionͷػೳΛ͓࣋ͬͯΓɺ؆୯ʹΞϓϦέʔγϣϯଆͰো֐ͷ ִ཭ɾ෮چΛ͢Δ͜ͱ͕Ͱ͖Δ Akka Actor - ·ͱΊ
26. ঢ়ଶΛߋ৽͢ΔͨΊʹద੾ʹScaling/ Balancing͢Δํ๏͸ʁʁʁ
27. ActorͷScaling/Balancing /PEF
    /PEF
    /PEF
    -# ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS ˞࣮ࡍʹ͸΋ͬͱଟ͘ͷ"DUPS͕
    Քಇ͢Δ͜ͱʹͳΔ /PEFؒʹ౉ͬͯɺ"DUPSΛల ։͢Δʹ͸ʁ ͲͷΑ͏ʹɺͲͷ/PEFʹͲͷ ঢ়ଶ͕͋Δ͔Λ஌Δ͜ͱ͕Ͱ͖ Δʁ
28. Akka Cluster "LLBͰ͸$MVTUFSΛߏ੒͢Δ͜ͱ͕Ͱ͖Δ +7. +7. +7. +7. +7.
29. Akka Cluster +7. +7. +7. +7. +7. ϩʔΧϧͰͷ"DUPSؒͷϝοηʔδύογϯά͸ͦͷ··Ͱ
30. Akka Cluster +7. +7. +7. +7. +7. ϊʔυΛ·͍ͨͩ"DUPSؒͷϝοηʔδϯά͸
    ϩʔΧϧͱશ͘ಉ͡Α͏ʹѻ͏͜ͱ͕Ͱ͖Δ
31. Akka Cluster ϩʔΧϧͱಉ༷ʹϊʔυΛ·͍ͨͩ"DUPSؒͷ؂ࢹ΋Մೳ +7. +7. +7. +7. +7. ਌ ࢠ ؂ࢹ
32. ͦΕͧΕຖʹϢχʔΫͳࣝผࢠ Λ"DUPSΛ&OUJUZͱݺͿ Akka Cluster Sharding +7. +7. +7. +7. 4IBSE
     4IBSE
     4IBSE
     4IBSE
     4IBSE
     4IBSE
     ୯ମͷϊʔυ্ͷ"DUPS $MVTUFS্Ͱ4IBSEJOH͞Εͨ"DUPS &OUJUZΛ4IBSEʹ෼͚ɺ4IBSEΛ ෳ਺ͷϊʔυʹ෼ࢄͤ͞Δ͜ͱ͕Ͱ ͖Δ
33. Akka Cluster Sharding +7. +7. +7. +7. 4IBSE
     4IBSE
     4IBSE
     4IBSE
     4IBSE
     4IBSE
     ୯ମͷϊʔυ্ͷ"DUPS $MVTUFS্Ͱ4IBSEJOH͞Εͨ"DUPS ಉҰͷࣝผࢠΛ΋ͭ&OUJUZ͸ $MVTUFSʹҰՕॴ͔͠ଘࡏ͠ͳ͍͜ ͱΛอূ 4IBSEʹ9999ͱ͍͏ࣝผࢠ Λ࣋ͭ&OUJUZ͕͍ͨΒɺଞͷ 4IBSEʹ͸ಉ͡&OUJUZ͸ଘࡏ͠ ͳ͍
34. Akka Cluster Sharding +7. +7. +7. +7. 4IBSE
     4IBSE
     4IBSE
     4IBSE
     4IBSE
     4IBSE
     ୯ମͷϊʔυ্ͷ"DUPS $MVTUFS্Ͱ4IBSEJOH͞Εͨ"DUPS Ͳ͜ͷ4IBSEʹԿͷ&OUJUZ͕ଘࡏ ͢Δͷ͔΋؅ཧ͞Ε͍ͯΔ 4IBSEʹ9999ͱ͍͏&OUJUZ ͕ଘࡏ͢Δ
35. Akka Cluster - Clusterͷߏஙʢิʣ $MVTUFSΛߏங͢Δʹ͸ɺ$MVTUFSͷى఺ɺϊʔυͷ+PJO΍ -FBWFΛ؅ཧ͢Δ4FFEϊʔυ͕ඞཁ 4FFE 4FFE +7. +7. +7. +7.
36. $MVTUFSʹ৽نϊʔυΛ௥Ճ͢Δ৔߹ɺ
    ·ͣ͸4FFEϊʔυͱ௨৴͢Δඞཁ͕͋Δ 4FFE 4FFE ৽نϊʔυ +PJO Akka Cluster - Clusterͷߏஙʢิʣ +7. +7. +7. +7. +7.
37. • ϊʔυؒͰClusterΛߏங͢Δ͜ͱ͕Ͱ͖Δ • ͜Ε·Ͱͷػೳ͸ϩʔΧϧͱಉ͡Α͏ʹѻ͏͜ͱ͕Ͱ͖ΔʢTransparencyʣ • ϝοηʔδύογϯά • Supervision(؂ಜ) • Akka Cluster (Sharding)Λར༻͢Δ͜ͱͰ • ActorͷҰҙੑΛอূɿCluster಺ͰEntity͕Ұҙʹଘࡏ͢Δ͜ͱΛอূ͢Δ • ActorͷҐஔΛ؅ཧɿCluster಺ͰEntityͷҐஔΛ؅ཧ͍ͯ͠ΔͷͰɺͲͷshardʹ͍Δͷ͔͕෼͔Δ • ϊʔυ͕௥Ճ͞ΕΔͱγϟʔυΛࣗಈతʹϦόϥϯε͢Δ͜ͱ͕Ͱ͖Δ • ৽نʹϊʔυΛ௥Ճ͢Δʹ͸ɺSeedϊʔυͷ৘ใΛ஌͍ͬͯΔඞཁ͕͋Δʢͨͩ͠ɺAkka Clusterʹ͸ Service Discoveryͷػೳ͸ͳ͍ʣ Akka Cluster - ·ͱΊ
38. ΞϓϦέʔγϣϯΛ࠶ىಈͨ͠Βঢ়ଶ͕ফ ͑ͳ͍ʁʁʁ
39. /PEF
    /PEF
    /PEF
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS "LLB
    $MVTUFS "DUPSͷঢ়ଶ͕ফ͑ͳ͍ʁ ϊʔυʹো֐͕
    ൃੜʂ ϊʔυʹো֐͕ى͖ͨΓɺ"QQMJDBUJPO͕མͪͨΒ"DUPSͷঢ় ଶ͸ফ͑ͯ͠·͏ɻͨͩ͠"DUPSΛӬଓԽ͢Δํ๏͕༻ҙ͞Ε ͍ͯΔɻ ActorͷӬଓԽ
40. "DUPS ActorͷӬଓԽ %#,74 ͑ͬɺ݁ہ%#,74ར༻͢Δͷʁʁʁ ӬଓԽ͢ΔͨΊʹɺ%#,74Λར༻͢Δ ঢ়ଶ
     $POGFSFODF
    /BNF
    
    $MPVE
    /BUJWF
    %BZT
    5PLZP
    
     5JDLFU
    
41. &WFOU
    4PVSDJOH͸"LLB
    1FSTJTUFODFͷػೳͰ࣮ݱՄೳ "DUPS ActorͷӬଓԽ %#,74 %#,74ʹอଘ͢Δͷ͸ɺঢ়ଶͰ͸ͳ͘ɺΠϕϯτΛ อଘ͢Δʢ&WFOU
    4PVSDJOHʣ อଘ͢Δͷ͸ঢ়ଶΛมߋͨ͠Πϕϯτ ঢ়ଶ
     $POGFSFODF
    /BNF
    
    $MPVE
    /BUJWF
    %BZT
    5PLZP
    
     5JDLFU
     νέοτΛຕొ࿥ νέοτ͕ຕചΕͨ νέοτ͕ຕചΕͨ ɾ
    ɾ
    ɾ
42. "DUPS ActorͷӬଓԽ %#,74 ো֐࣌ʹ͸ΠϕϯτΛશͯಡΈࠐΈɺঢ়ଶΛ෮ݩ͢Δ ঢ়ଶ
     $POGFSFODF
    /BNF
    
    $MPVE
    /BUJWF
    %BZT
    5PLZP
    
     5JDLFU
     νέοτΛຕొ࿥ νέοτ͕ຕചΕͨ νέοτ͕ຕചΕͨ ɾ
    ɾ
    ɾ Πϕϯτ͔Βঢ়ଶΛ෮ݩ͢Δ
43. εςʔτϨεͳΞϓϦέʔγϣϯ + DBʢ࠶ܝʣ "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    "QQMJDBUJPO 4FSWFS
    -# %# ঢ়ଶΛߋ৽͢ΔͨΊʹ-PDL -PDL͕ղআ͞ΕΔ·Ͱ
    ଴ͭඞཁ͕͋Δ Ϩεϙϯε͕஗͘ͳΔ ಉ͡ঢ়ଶΛෳ਺͔Βߋ৽͠Α͏ͱͨ͠ࡍʹɺϨεϙϯε͕஗͘ͳΔʂ
    ʢঢ়ଶߋ৽͕ෳࡶͳ৔߹͸%FBE-PDL΋ൃੜ͢Δʜʣ ಉҰͷঢ়ଶΛಉ࣌ʹߋ৽͢Δέʔε
44. "DUPS
     ActorͷӬଓԽ %#,74 ɾঢ়ଶͷߋ৽͸ϝϞϦ্Ͱ׬݁
    ɾঢ়ଶΛߋ৽͢Δͷ͸ҰՕॴʢ&OUJUZʣͷΈͱอূ͞Ε͍ͯΔ
    ɾΠϕϯτΛอଘ͢Δ͚ͩͳͷͰɺBEE͚ͩͰྑ͍ νέοτΛຕొ࿥ νέοτ͕ຕചΕͨ νέοτ͕ຕചΕͨ ɾ
    ɾ
    ɾ νέοτ͕ຕചΕͨ ϩοΫ΍ഉଞ੍ޚ͕ඞཁͳ͍ͷͰɺϨεϙϯε͕଎͍ ߋ৽
45. • Actorͷঢ়ଶΛอଘ͢ΔͷͰ͸ͳ͘ɺঢ়ଶΛมߋ͢ΔΠϕϯτΛอଘ͢Δ ʢEvent Sourcingʣ • ঢ়ଶͷߋ৽͸ϝϞϦ্Ͱ׬݁ • ϩοΫ΍ഉଞ੍ޚ͕ඞཁͳ͍ • ϨεϙϯεΛ଎͘͢Δ͜ͱ͕Ͱ͖Δ • ActorͰEventSourcing͢Δʹ͸Akka PersistenceΛར༻Ͱ͖Δ ActorͷӬଓԽ - ·ͱΊ
46. εςʔτϑϧͳΞϓϦέʔγϣϯ
47. /PEF
    /PEF
    /PEF
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS
    ঢ়ଶ
    
    "DUPS "LLB
    $MVTUFS %#,74 εςʔτϑϧͳΞϓϦέʔγϣϯ "LLB
    1FSTJTUFODF &WFOU
    4PVSDJOH ঢ়ଶΛߋ৽
    ʂ "DUPSͷঢ়ଶΛ
    ߋ৽͢Δϝοηʔδ "LLB
    "DUPS
    
    "LLB
    $MVTUFS 4IBSEJOH
    
    "LLB
    1FSTJTUFODFͰεςʔτϑϧͳΞϓϦέʔγϣϯΛߏ੒Ͱ͖Δ
48. • ֎෦σʔλετΞʢDB/KVSʣʹอଘ͍ͯͨ͠ঢ়ଶΛΞϓϦέʔγϣϯ಺ ʹอ࣋͢Δ • ঢ়ଶͷߋ৽͕ϝϞϦ্Ͱ׬݁͢ΔͨΊʹɺଈԠੑ͕ߴ·Δ • ঢ়ଶͷߋ৽ΛҰՕॴͷΈʹอূ͢Δ͜ͱͰɺෆ੔߹Λ๷͙͜ͱ͕Ͱ͖Δ • ActorͷӬଓԽʹ͸Event SourcingΛ༻͍Δ • σʔλͷ௥ՃͷΈͳͷͰɺlock΍ഉଞ੍ޚ͕ඞཁͳ͍ εςʔτϑϧͳΞϓϦέʔγϣϯ
49. • ϊʔυͷεέʔϧΞ΢τ/Πϯ • ϊʔυো֐࣌ͷࣗಈ෮چ • Clusterʹ৽نϊʔυΛ௥Ճ͢ΔࡍʹඞཁͱͳΔService Discovery Akka ClusterͷΈͰରԠͰ͖ͳ͍͜ͱ ,VCFSOFUFTͱ૊Έ߹ΘͤΔ͜ͱͰղܾ
50. Akka Cluster on Kubernetes
51. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. Akka Cluster on k8s - ֓ཁ
52. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. ͭͷ1PE
    
    ͭͷ"LLB
    $MVTUFSͷϊʔυͱͳΔ Akka Cluster on k8s - ֓ཁ
53. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. "LLB
    $MVTUFS ,VCFSOFUFT ΞϓϦέʔγϣϯଆͷΫϥελϦϯά͸"LLB
    $MVTUFSɺ
    ΠϯϑϥଆͷΫϥελϦϯά͸,VCFSOFUFTͰ؅ཧ Akka Cluster on k8s - ֓ཁ
54. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE Πϯϑϥଆ͸)1"Ͱ1PEͷεέʔϦϯά Akka Cluster on k8s - εέʔϦϯά
55. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. ΞϓϦέʔγϣϯଆ͸"DUPS
    $MVTUFSͰ"DUPSͷεέʔϦϯά Akka Cluster on k8s - εέʔϦϯά
56. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. ো֐ ΦʔτώʔϦϯά 1PEଆͷো֐͸1PEͷΦʔτώʔϦϯάͰରԠ Akka Cluster on k8s - ো֐෮چ
57. 7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. "DUPSଆͷ$SBTI͸"DUPSͷ4VQFSWJTJPOͰରԠ $SBTI 4VQFSWJTJPOͰରԠ Akka Cluster on k8s - ো֐෮چ
58. +7. +7. +7. 1PE 1PE 1PE "LLB
    $MVTUFS Akka Cluster On k8s - Node௥Ճ "LLB
    $MVTUFSʹ͸,VCFSOFUFTͱͷ࿈ܞػೳ͕༻ҙ͞Ε͍ͯΔ +7. 1PE ৽نϊʔυ LT
    "1*
59. +7. +7. +7. 1PE 1PE 1PE "LLB
    $MVTUFS Akka Cluster On k8s - Node௥Ճ ,VCFSOFUFTͷ"1*ʹ໰͍߹ΘͤΔࣄͰɺ
    $MVTUFS಺ͷ1PEͷѼઌΛ஌Δ͜ͱ͕Ͱ͖Δ +7. 1PE ৽نϊʔυ LT
    "1* $MVTUFSͷ1PEͷѼઌΛ໰͍߹ Θͤ
60. +7. +7. +7. 1PE 1PE 1PE "LLB
    $MVTUFS Akka Cluster On k8s - Node௥Ճ $MVTUFS಺ͷ1PEʹ޲͚ͯɺ+PJOϝοηʔδΛૹΔ +7. 1PE ৽نϊʔυ LT
    "1* ໰͍߹Θͤͨ݁Ռ͔Βϊʔυ΁ +PJOϝοηʔδΛ͓͘Δ
61. +7. +7. +7. 1PE 1PE 1PE "LLB
    $MVTUFS Akka Cluster On k8s - Node௥Ճ "LLB
    $MVTUFSʹ͸ͳ͔ͬͨɺ4FSWJDF
    %JTDPWFSͷػೳΛ LT͕ิ׬ͯ͘͠ΕΔ +7. 1PE ৽نϊʔυ LT
    "1*
62. • Akka ClusterͷΈ͚ͩͰ͸ରԠͰ͖ͳ͔ͬͨ఺ΛKubernetes͕ Χόʔͯ͘͠ΕΔ • Akka Cluster͔ΒݟͨNodeͷScaleOut/In • Akka Cluster͔Βݟͨϊʔυͷো֐෮چ • Akka Cluster͔ΒݟͨଞϊʔυͷService Discovery • PodʹKubernetes API΁ͷΞΫηεݖݶΛ෇༩͢Δඞཁ͕͋Δ Akka Cluster On k8s - ·ͱΊ
63. ·ͱΊ
64. • ʢຊདྷ֎෦DV/KVSʹ͍࣋ͬͯΔʣঢ়ଶΛΞϓϦέʔγϣϯʹ͍࣋ͬͯΔͷ͕ɺεςʔτϑϧ ͳΞϓϦέʔγϣϯ • εςʔτϑϧͳΞϓϦέʔγϣϯ͸ଈԠੑ͕ߴ͍ • εςʔτϑϧͳΞϓϦέʔγϣϯΛߏ੒͢ΔͨΊʹActor ModelʢAkkaʣ͕͋Δ • Akka Actor + Akka ClusterʢShardingʣ+ Akka PersistenceͰεςʔτϑϧͳΞϓϦέʔ γϣϯΛ؆୯ʹߏ੒Ͱ͖Δ • ActorͷӬଓԽʹ͸Event SourcingΛར༻͢Δ • ΞϓϦέʔγϣϯ૚ʹActor ModelɺΠϯϑϥ૚ʹKubernetesΛ૊Έ߹ΘͤΔ͜ͱͰɺ Actor Model͚ͩͰ͸ରԠͰ͖ͳ͔ͬͨ͜ͱΛิ׬͢Δ͜ͱ͕Ͱ͖Δ ·ͱΊ
65. • Akkaͷଞͷศརπʔϧ • Akka HttpɺAkka Streamsɺetc… • NWো֐࣌౳ͷClusterͷSpritBrain • CQRS + ES ࠓ೔࿩͞ͳ͔ͬͨ͜ͱ
66. • Using Akka Cluster for a payment service - Scala Matsuri 2019 • https://speakerdeck.com/negokaz/using-akka-cluster-for-a-payment-service • How to build an Event-Sourcing system using Akka with EKS - Scala Matsuri 2019 • https://speakerdeck.com/j5ik2o/how-to-build-an-event-sourcing-system-using-akka-with-eks • Managing an Akka Cluster on Kubernetes - Scala Days LAUSANNE 2019 • https://portal.klewel.com/watch/webcast/scala-days-2019/talk/23/ • White Paper: The Benefits Of Using Akka With Kubernetes • https://www.lightbend.com/blog/new-white-paper-the-benefits-of-using-akka-with-kubernetes ࢀߟ