Actor Model meets the Kubernetes - CNDT 2019

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Actor Model meets the Kubernetes Cloud Native Days Tokyo 2019 ৿ຊਅҰ @shnmorimotoʢFringe81גࣜձࣾʣ

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ࣗݾ঺հ • ໊લɿ৿ຊ ਅҰ • twitter: @shnmorimoto • github: github.com/shnmorimoto • ॴଐɿFringe81 גࣜձࣾ • ࢓ࣄɿ޿ࠂܥϓϩμΫτɾόοΫΤϯυΤϯδχΞ • ྖҬɿScala, Elm, Azure, Kubernetes

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Fringe81 • ࿡ຊ໦ͷձࣾ • Ad Techܥ/HR TechܥͷྖҬͰ༷ʑͳαʔϏεΛల։ • Ad Tech: docomo Ad Network, GrowLio, … • HR Tech: Unipos

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ࠓ೔࿩͢͜ͱ/࿩͞ͳ͍͜ͱ • ࿩͢͜ͱ • εςʔτϑϧͳΞϓϦέʔγϣϯʹ͍ͭͯ • εςʔτϑϧͳΞϓϦέʔγϣϯΛ࣮ݱ͢ΔͨΊͷखஈʹͭ ͍ͯʢActorModel/AkkaɾAkka Clusterʣ • Akka ClusterΛk8sͰՔಇͤ͞ΔϝϦοτ • ࿩͞ͳ͍͜ͱ • εςʔτϑϧηοτ

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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

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εςʔτϨεͳΞϓϦέʔγϣϯ + DB "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS -# %# ඞཁͳঢ়ଶΛ %#ʹอଘ͢Δʂ ௨ৗɺ༗༻ͳΞϓϦέʔγϣϯΛ࡞੒͢ΔͨΊʹ͸ঢ়ଶΛ%# ౳ʹ࣋ͭඞཁ͕͋Δ ͜ΕͰશ͕ͯ໰୊ͳ͘ղܾʁ

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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

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εςʔτϨεͳΞϓϦέʔγϣϯ + KVS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS -# ,74 ඞཁͳঢ়ଶΛ ,74ʹอଘ͢Δʂ Ϩεϙϯε͕໰୊ʹͳΔͳΒɺ,74ʹ͢Ε͹ྑ͍ʂ ͜ΕͰશ͕ͯ໰୊ͳ͘ղܾʁ ଎͍ͧ͒ʂʂʂ

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εςʔτϨεͳΞϓϦέʔγϣϯ + KVS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS -# ,74 ߋ৽࣌ʹ-PDL͕͔͔Βͳ͍ͷͰɺঢ়ଶͷෆ੔߹͕͓͖ΔՄೳ ੑ͕͋Δ ಉҰͷঢ়ଶΛಉ࣌ʹߋ৽͢Δέʔε ʢઌʹʣঢ়ଶΛߋ৽ʂ ʢޙʹʣঢ়ଶΛߋ৽ʂ 8*/

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εςʔτϨεͳΞϓϦέʔγϣϯ + DB/KVS + ??? "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS -# ౰વɺղܾ͢Δखஈ͸৭ʑ͋Δ͕ɺߏ੒͸ෳࡶʹͳΒ͟ΔΛ ಘͳ͍ ಉҰͷঢ়ଶΛಉ࣌ʹߋ৽͢Δέʔε ԿΒ͔ͷ ιϦϡʔγϣ ϯʁʁʁʁ

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ݱ୅ͷΞϓϦέʔγϣϯ΁ͷཁٻ 5IF3FBDUJWF.BOJGFTUP IUUQTXXXSFBDUJWFNBOJGFTUPPSH ΑΓ ΞϓϦέʔγϣϯ͕ σϓϩΠ͞ΕΔ৔ॴ͸ϞόΠϧ ͔ΒΫϥ΢υ·Ͱ༷ʑ ϨεϙϯελΠϜ͸ ϛϦඵ ϝϯςφϯεͷμ΢ϯλΠϜ ͸θϩɾμ΢ϯλΠϜ ѻ͏σʔλ͸೔ʑ૿Ճ ͔͠΋ɺݱ୅ͷΞϓϦέʔγϣϯ͸ΑΓෳࡶɺ଎͘ɺམͪͳ ͍͜ͱΛཁٻ͞ΕΔ

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εςʔτϑϧͳΞϓϦέʔγϣϯ "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS -# ֎෦ʹ͍࣋ͬͯͨঢ়ଶΛΞϓϦέʔγϣϯଆʹ͍࣋ͬͯ͘͜ ͱͰγϯϓϧͳߏ੒ʹͰ͖ΔͷͰ͸ʁ ঢ়ଶ ঢ়ଶ ঢ়ଶ ঢ়ଶ ঢ়ଶ

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εςʔτϑϧͳΞϓϦέʔγϣϯ "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS "QQMJDBUJPO 4FSWFS -# ֎෦ʹ͍࣋ͬͯͨঢ়ଶΛΞϓϦέʔγϣϯଆʹ͍࣋ͬͯ͘͜ ͱͰγϯϓϧͳߏ੒ʹͰ͖ΔͷͰ͸ʁ ঢ়ଶ ঢ়ଶ ঢ়ଶ ঢ়ଶ ঢ়ଶΛߋ৽ʂ

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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

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ঢ়ଶΛΞϓϦέʔγϣϯʹ࣋ͭʹ͸ʁʁʁ

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Actor Model • ฒߦγεςϜͷϞσϧͷҰछ • ActorʢΞΫλʔʣͱ͍͏֓೦Λಋೖ͠ɺฒߦγεςϜΛ؆қʹѻ͏͜ͱ͕ Ͱ͖Δʢޙड़ʣ • Erlang͕Actor ModelΛ࠾༻͍ͯ͠Δ • Java/ScalaͰ΋Akkaͱ͍͏πʔϧΩοτΛར༻͢Δ͜ͱͰ࣮ݱͰ͖Δ ΞΫλʔϞσϧʢӳBDUPSNPEFMʣͱ͸ɺ೥ɺΧʔϧɾώϡʔΠοτɺ1FUFS #JTIPQɺ3JDIBSE4UFJHFS͕ൃදͨ͠ฒߦܭࢉͷ਺ֶతϞσϧͷҰछɻ ग़యϑϦʔඦՊࣄయʰ΢ΟΩϖσΟΞʢ8JLJQFEJBʣʱ ຊηογϣϯͰ͸"LLBΛྫʹऔΓɺ"DUPS.PEFMʹ͍ͭͯઆ໌͠·͢

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• Java/Scala޲͚ʹActor ModelΛ࣮ݱ͢ΔπʔϧΩοτ • LightbendࣾʹΑͬͯ։ൃ͞Εɺݱࡏ͸ΦʔϓϯιʔεͰ։ൃ͕ଓ͚ΒΕ͍ͯΔ • ԼهΛ؆қʹ࣮ݱͰ͖Δ • Actor Model • SupervisorʹΑΔো֐ִ཭ɾ෮چʹ༏ΕͨγεςϜͷߏங • ΫϥελϦϯά • ετϦʔϜॲཧ • etc … Akka - ֓ཁ

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"DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS +7.

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+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 %BZT5PLZP %BUF FY $POGFSFODF/BNF$MPVE/BUJWF %BZT'VLVPLB %BUF ෳ਺ͷ"DUPS͕Ծ૝ϓϩηεͷΑ͏ʹՔಇ͢Δ

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+7. "DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS $POGFSFODF໊͸ʁ $MPVE/BUJWF %BZT5PLZP ͦΕͧΕͷ"DUPSؒ͸ϝοηʔδΛ௨ͯ͠ඇಉظʹॲཧΛߦ͏

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"DUPS Akka Actor "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS "DUPS ɾݸʑͷ"DUPS͸ΞυϨεΛ͓࣋ͬͯΓɺͦͷΞυϨεѼʹϝοηʔδΛૹ৴͢Δɻ ɾϝʔϧϘοΫεͷΑ͏ͳΩϡʔΛ͓࣋ͬͯΓɺಧ͍ͨϝοηʔδʹ͍ͭͯॱ࣍ॲཧΛߦ͏ +7.

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"DUPS Akka Actor - Supervisionʢิʣ "DUPS "DUPS "DUPS "DUPS ਌ ࢠ ଙ • Actor͸ࣗ਎ͷࢠͱͳ ΔActorΛੜ੒Ͱ͖Δ • ActorؒͰͷ਌ࢠؔ ܎ɺҰछͷπϦʔߏ ଄Λߏ੒Ͱ͖Δ

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"DUPS "DUPS "DUPS "DUPS "DUPS ਌ ࢠ ଙ • ਌Actor͸ࢠActorͷ؂ ಜऀʢSupervisorʣͱ ͳΔ • ࢠActorʹ໰୊͕ൃੜ ͨ͠৔߹ʹఀࢭ΍࠶ى ಈ౳ͷॲཧΛߦ͏ ؂ࢹ ؂ࢹ Akka Actor - Supervisionʢิʣ

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"DUPS "DUPS "DUPS "DUPS "DUPS ਌ ࢠ ଙ • ਌Actor͸ࢠActorʹ໰୊͕ൃੜ͢ ΔͱઓུʹԊͬͯରԠ • ఀࢭ • ࠶ىಈʢActorΛ࠶ੜ੒͢Δʣ • ΤεΧϨʔγϣϯ ໰୊͕ൃੜ "DUPS͕ઓུʹԊͬͯɺରԠ Akka Actor - Supervisionʢิʣ

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• ActorΛར༻͢Δ͜ͱͰɺΞϓϦέʔγϣϯଆͰঢ়ଶΛ΋ͭ͜ͱ͕Ͱ͖Δ • Actor͸ঢ়ଶ΍ϩδοΫΛ࣋ͭ • Actor͸ͦΕͧΕಠཱ͍ͯ͠Δ • Actorؒͷ௨৴͸ϝοηʔδϯάΛ௨ͯ͠ѻ͏ • Actor͸SupervisionͷػೳΛ͓࣋ͬͯΓɺ؆୯ʹΞϓϦέʔγϣϯଆͰো֐ͷ ִ཭ɾ෮چΛ͢Δ͜ͱ͕Ͱ͖Δ Akka Actor - ·ͱΊ

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ঢ়ଶΛߋ৽͢ΔͨΊʹద੾ʹScaling/ Balancing͢Δํ๏͸ʁʁʁ

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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

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Akka Cluster "LLBͰ͸$MVTUFSΛߏ੒͢Δ͜ͱ͕Ͱ͖Δ +7. +7. +7. +7. +7.

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Akka Cluster +7. +7. +7. +7. +7. ϩʔΧϧͰͷ"DUPSؒͷϝοηʔδύογϯά͸ͦͷ··Ͱ

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Akka Cluster +7. +7. +7. +7. +7. ϊʔυΛ·͍ͨͩ"DUPSؒͷϝοηʔδϯά͸ ϩʔΧϧͱશ͘ಉ͡Α͏ʹѻ͏͜ͱ͕Ͱ͖Δ

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Akka Cluster ϩʔΧϧͱಉ༷ʹϊʔυΛ·͍ͨͩ"DUPSؒͷ؂ࢹ΋Մೳ +7. +7. +7. +7. +7. ਌ ࢠ ؂ࢹ

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ͦ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

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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

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Akka Cluster Sharding +7. +7. +7. +7. 4IBSE 4IBSE 4IBSE 4IBSE 4IBSE 4IBSE ୯ମͷϊʔυ্ͷ"DUPS $MVTUFS্Ͱ4IBSEJOH͞Εͨ"DUPS Ͳ͜ͷ4IBSEʹԿͷ&OUJUZ͕ଘࡏ ͢Δͷ͔΋؅ཧ͞Ε͍ͯΔ 4IBSEʹ9999ͱ͍͏&OUJUZ ͕ଘࡏ͢Δ

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Akka Cluster - Clusterͷߏஙʢิʣ $MVTUFSΛߏங͢Δʹ͸ɺ$MVTUFSͷى఺ɺϊʔυͷ+PJO΍ -FBWFΛ؅ཧ͢Δ4FFEϊʔυ͕ඞཁ 4FFE 4FFE +7. +7. +7. +7.

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$MVTUFSʹ৽نϊʔυΛ௥Ճ͢Δ৔߹ɺ ·ͣ͸4FFEϊʔυͱ௨৴͢Δඞཁ͕͋Δ 4FFE 4FFE ৽نϊʔυ +PJO Akka Cluster - Clusterͷߏஙʢิʣ +7. +7. +7. +7. +7.

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• 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

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ΞϓϦέʔγϣϯΛ࠶ىಈͨ͠Βঢ়ଶ͕ফ ͑ͳ͍ʁʁʁ

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/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

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"DUPS ActorͷӬଓԽ %#,74 ͑ͬɺ݁ہ%#,74ར༻͢Δͷʁʁʁ ӬଓԽ͢ΔͨΊʹɺ%#,74Λར༻͢Δ ঢ়ଶ $POGFSFODF /BNF$MPVE /BUJWF%BZT 5PLZP 5JDLFU

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&WFOU4PVSDJOH͸"LLB 1FSTJTUFODFͷػೳͰ࣮ݱՄೳ "DUPS ActorͷӬଓԽ %#,74 %#,74ʹอଘ͢Δͷ͸ɺঢ়ଶͰ͸ͳ͘ɺΠϕϯτΛ อଘ͢Δʢ&WFOU4PVSDJOHʣ อଘ͢Δͷ͸ঢ়ଶΛมߋͨ͠Πϕϯτ ঢ়ଶ $POGFSFODF /BNF$MPVE /BUJWF%BZT 5PLZP 5JDLFU νέοτΛຕొ࿥ νέοτ͕ຕചΕͨ νέοτ͕ຕചΕͨ ɾ ɾ ɾ

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"DUPS ActorͷӬଓԽ %#,74 ো֐࣌ʹ͸ΠϕϯτΛશͯಡΈࠐΈɺঢ়ଶΛ෮ݩ͢Δ ঢ়ଶ $POGFSFODF /BNF$MPVE /BUJWF%BZT 5PLZP 5JDLFU νέοτΛຕొ࿥ νέοτ͕ຕചΕͨ νέοτ͕ຕചΕͨ ɾ ɾ ɾ Πϕϯτ͔Βঢ়ଶΛ෮ݩ͢Δ

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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

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"DUPS ActorͷӬଓԽ %#,74 ɾঢ়ଶͷߋ৽͸ϝϞϦ্Ͱ׬݁ ɾঢ়ଶΛߋ৽͢Δͷ͸ҰՕॴʢ&OUJUZʣͷΈͱอূ͞Ε͍ͯΔ ɾΠϕϯτΛอଘ͢Δ͚ͩͳͷͰɺBEE͚ͩͰྑ͍ νέοτΛຕొ࿥ νέοτ͕ຕചΕͨ νέοτ͕ຕചΕͨ ɾ ɾ ɾ νέοτ͕ຕചΕͨ ϩοΫ΍ഉଞ੍ޚ͕ඞཁͳ͍ͷͰɺϨεϙϯε͕଎͍ ߋ৽

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• Actorͷঢ়ଶΛอଘ͢ΔͷͰ͸ͳ͘ɺঢ়ଶΛมߋ͢ΔΠϕϯτΛอଘ͢Δ ʢEvent Sourcingʣ • ঢ়ଶͷߋ৽͸ϝϞϦ্Ͱ׬݁ • ϩοΫ΍ഉଞ੍ޚ͕ඞཁͳ͍ • ϨεϙϯεΛ଎͘͢Δ͜ͱ͕Ͱ͖Δ • ActorͰEventSourcing͢Δʹ͸Akka PersistenceΛར༻Ͱ͖Δ ActorͷӬଓԽ - ·ͱΊ

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εςʔτϑϧͳΞϓϦέʔγϣϯ

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/PEF /PEF /PEF ঢ়ଶ"DUPS ঢ়ଶ"DUPS ঢ়ଶ"DUPS ঢ়ଶ"DUPS "LLB$MVTUFS %#,74 εςʔτϑϧͳΞϓϦέʔγϣϯ "LLB1FSTJTUFODF &WFOU4PVSDJOH ঢ়ଶΛߋ৽ʂ "DUPSͷঢ়ଶΛ ߋ৽͢Δϝοηʔδ "LLB"DUPS"LLB$MVTUFS 4IBSEJOH "LLB 1FSTJTUFODFͰεςʔτϑϧͳΞϓϦέʔγϣϯΛߏ੒Ͱ͖Δ

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• ֎෦σʔλετΞʢDB/KVSʣʹอଘ͍ͯͨ͠ঢ়ଶΛΞϓϦέʔγϣϯ಺ ʹอ࣋͢Δ • ঢ়ଶͷߋ৽͕ϝϞϦ্Ͱ׬݁͢ΔͨΊʹɺଈԠੑ͕ߴ·Δ • ঢ়ଶͷߋ৽ΛҰՕॴͷΈʹอূ͢Δ͜ͱͰɺෆ੔߹Λ๷͙͜ͱ͕Ͱ͖Δ • ActorͷӬଓԽʹ͸Event SourcingΛ༻͍Δ • σʔλͷ௥ՃͷΈͳͷͰɺlock΍ഉଞ੍ޚ͕ඞཁͳ͍ εςʔτϑϧͳΞϓϦέʔγϣϯ

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• ϊʔυͷεέʔϧΞ΢τ/Πϯ • ϊʔυো֐࣌ͷࣗಈ෮چ • Clusterʹ৽نϊʔυΛ௥Ճ͢ΔࡍʹඞཁͱͳΔService Discovery Akka ClusterͷΈͰରԠͰ͖ͳ͍͜ͱ ,VCFSOFUFTͱ૊Έ߹ΘͤΔ͜ͱͰղܾ

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Akka Cluster on Kubernetes

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. Akka Cluster on k8s - ֓ཁ

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. ͭͷ1PEͭͷ"LLB$MVTUFSͷϊʔυͱͳΔ Akka Cluster on k8s - ֓ཁ

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. "LLB$MVTUFS ,VCFSOFUFT ΞϓϦέʔγϣϯଆͷΫϥελϦϯά͸"LLB$MVTUFSɺ ΠϯϑϥଆͷΫϥελϦϯά͸,VCFSOFUFTͰ؅ཧ Akka Cluster on k8s - ֓ཁ

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE Πϯϑϥଆ͸)1"Ͱ1PEͷεέʔϦϯά Akka Cluster on k8s - εέʔϦϯά

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. ΞϓϦέʔγϣϯଆ͸"DUPS$MVTUFSͰ"DUPSͷεέʔϦϯά Akka Cluster on k8s - εέʔϦϯά

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. ো֐ ΦʔτώʔϦϯά 1PEଆͷো֐͸1PEͷΦʔτώʔϦϯάͰରԠ Akka Cluster on k8s - ো֐෮چ

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7. 7. 1PE +7. 1PE +7. 1PE +7. 1PE +7. "DUPSଆͷ$SBTI͸"DUPSͷ4VQFSWJTJPOͰରԠ $SBTI 4VQFSWJTJPOͰରԠ Akka Cluster on k8s - ো֐෮چ

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+7. +7. +7. 1PE 1PE 1PE "LLB$MVTUFS Akka Cluster On k8s - Node௥Ճ "LLB$MVTUFSʹ͸,VCFSOFUFTͱͷ࿈ܞػೳ͕༻ҙ͞Ε͍ͯΔ +7. 1PE ৽نϊʔυ LT"1*

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+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

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+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

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+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*

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• Akka ClusterͷΈ͚ͩͰ͸ରԠͰ͖ͳ͔ͬͨ఺ΛKubernetes͕ Χόʔͯ͘͠ΕΔ • Akka Cluster͔ΒݟͨNodeͷScaleOut/In • Akka Cluster͔Βݟͨϊʔυͷো֐෮چ • Akka Cluster͔ΒݟͨଞϊʔυͷService Discovery • PodʹKubernetes API΁ͷΞΫηεݖݶΛ෇༩͢Δඞཁ͕͋Δ Akka Cluster On k8s - ·ͱΊ

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·ͱΊ

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• 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

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• Akkaͷଞͷศརπʔϧ • Akka HttpɺAkka Streamsɺetc… • NWো֐࣌౳ͷClusterͷSpritBrain • CQRS + ES ࠓ೔࿩͞ͳ͔ͬͨ͜ͱ

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• 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