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Microservices Batch on GAE
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petitviolet
March 27, 2018
Programming
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1.9k
Microservices Batch on GAE
Implement microservices architecture batch Scala program on Google AppEngine Standard Environment.
petitviolet
March 27, 2018
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Transcript
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͜ͷลͷͰ͢
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("& 5BTL2VFVFͷࡉ͔͍ w 4DBMBͷ࣮ςΫχοΫ
ࠓ͢͜ͱ͞ͳ͍͜ͱ ͢͜ͱ w ("& 5BTL2VFVF 4DBMBͰόονΛ࡞Δ w ओʹΞʔΩςΫνϟతͳઓུ ͞ͳ͍͜ͱ w
("& 5BTL2VFVFͷࡉ͔͍ w 4DBMBͷ࣮ςΫχοΫ
όονʁ
όονʁ ϓϩάϥϜ܈Λॲཧత͝ͱʹ۠Γɺ͜ͷ۠ Γຖʹॱ࣮࣍ߦͯ͠Ώ͘ॲཧͷ͜ͱ XJLJQFEJB ཁ͢ΔʹɺԿ͔͠ΒͷॲཧΛॱ࣮࣍ߦ͢Δ͜ͱ
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όονͷΘ͕·· w ىಈ࣌Ҏ֎͓͔͚ۚͨ͘ͳ͍ w ίέͨΒࣗಈͰϦτϥΠ͍ͨ͠ w σʔλ͕૿͑ͨΒΦʔτεέʔϧ͍ͤͨ͞
ͦΕɺ("&Ͱग़དྷΔΑ
("& w (PPHMF"QQ&OHJOF w ͍ΘΏΔ1BB4 w \4UBOEBSE 'MFYJCMF^&OWJSPONFOUͷछྨ w 4&੍ݶ͕ݫ͍͕͠ӡ༻͓ͤ
w '&੍ݶ͕؇͍͕ӡ༻खಈ
("& ϑϨΩγϒϧڥɺελϯμʔυڥΛิ͢ Δ͜ͱΛతͱ͍ͯ͠·͢ɻ IUUQTDMPVEHPPHMFDPNBQQFOHJOFEPDTqFYJCMFKBWBqFYJCMFGPSTUBOEBSEVTFST IMKB جຊ4&Λݕ౼͠ɺμϝͬΆ͍ͳΒ'&ʹ͢Δ
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CBTJDόονͱ͔ w NBOVBMखӡ༻Ͱ*BB4دΓ
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σʔλ͕૿͑ͨΒΦʔτεέʔϧ͍ͤͨ͞ w
5BTL2VFVF
5BTL2VFVF w ("&ɺಛʹ4&Ͱ؆୯ʹ͑ΔδϣϒΩϡʔ w \1VTI 1VMM $SPO^Ωϡʔͷछྨ͋Δ w ("&αʔϏεؒͷ࿈ܞʹ1VTIΩϡʔ͕ඇৗʹศར w
DSPO͋ΔͷͰόονͷىಈ؆୯ w εςʔλε͕YYͱ͔ͳΒϦτϥΠͯ͘͠ΕΔ
5BTL2VFVF w ઃఆൺֱత୯७Ͱ؆୯ʹ࡞Մೳ w ͜Μͳײ͡ ˡϦτϥΠճͷ্ݶ ˡλεΫͷੜଘ࣌ؒ
όονͷΘ͕·· w ىಈ࣌Ҏ֎͓͔͚ۚͨ͘ͳ͍ w ("&4&ͳΒ࣮ߦ࣌ؒ՝ۚ w ίέͨΒࣗಈͰϦτϥΠ͍ͨ͠ w 5BTL2VFVFʹϦτϥΠػೳ͕͋Δ w
σʔλ͕૿͑ͨΒΦʔτεέʔϧ͍ͤͨ͞ w
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σʔλ͕૿͑ͨΒΦʔτεέʔϧ͍ͤͨ͞ w σʔλগ σʔλଟ
ΦʔτεέʔϧʹΉ͚ͯ w εέʔϧΞοϓ͍ͨ͠ w ("&ͩͱࣗಈͰग़དྷͳ͍ w εέʔϧΞτ͍ͨ͠ w ("&ϦΫΤετ૿ͰεέʔϧΞτ w
σʔλ͕૿͑ΔͱϦΫΤετ͕૿͑ΔΑ͏ ʹ࣮͢Δ
ΦʔτεέʔϧʹΉ͚ͯ w εέʔϧΞοϓ͍ͨ͠ w ("&ͩͱࣗಈͰग़དྷͳ͍ w εέʔϧΞτ͍ͨ͠ w ("&ϦΫΤετ૿ͰεέʔϧΞτ w
σʔλ͕૿͑ΔͱϦΫΤετ͕૿͑ΔΑ͏ ʹ࣮͢Δ
4DBMBͱ("&
4DBMBͱ("& w 'SJOHFͰαʔόαΠυ։ൃʹ4DBMBΛΑ͘͏ w ("&4&ͷ+BWBରԠ݄ w IUUQTDMPVEQMBUGPSNHPPHMFCMPHDPN+BWBPO"QQ&OHJOF4UBOEBSEFOWJSPONFOUJTOPXHFOFSBMMZBWBJMBCMFIUNM w 4&Ͱ+BWB͕ಈ͚4DBMBಈ͘ʂ
4DBMBͰόονॲཧ w 4DBMBඇಉظॲཧϧʔϓॲཧ͕هड़͘͢͠ɺ όονͰ͋Γ͕ͪͳॲཧΛ؆୯ʹॻ͚Δ w 'VUVSFͱ-JTUNBQͷΑ͏ͳ"1*Λ͏ val targets: List[Data] =
??? val resultFutures: List[Future[Result]] = targets map { target => Future { execute(target) } // 何か重い処理を非同期で実行 } val results: Future[List[Result]] = Future.sequence(resultFutures)
͜͜Ͱൃੜ w ("&4&γϯάϧίΞ w ඇಉظॲཧͷޮՌ͕ബ͍ w '&ʹͯ͠ϚϧνίΞʹ͢Δʜ
ίΞ͕Γͳ͚Ε ϚγϯΛ૿͍͍ͤ͡Όͳ͍
5BTL2VFVFΛͬͯίΞΛ૿͢ ϚϧνίΞγϯά ϧίΞ ϚϧνΠϯελϯε w ඇಉظॲཧΛλεΫͱͯ͠5BTL2VFVFQVU͢Δ w \ಉ͡ ผͷ^("&αʔϏεͰड͚औͬͯඇಉظॲཧ w
ϧʔϓॲཧҰͭͣͭผͷλεΫʹ͢Δ 5BTL2VFVF
େ͖ͳόονॲཧΛ খ͞ͳλεΫʹׂͯ͠ ඇಉظʹॲཧ͢Δ
·͞ʹ.JDSPTFSWJDFT
ͪͳΈʹ ("&4&ͩͱϝϞϦͷ࠷େαΠζ͕(#ͳͷͰɺ Լखʹେ͖ͳόονΛಈ͔͢ͱ؆୯ʹ00.͕ى ͖ΔͷͰɺόονΛখׂͤ͘͟͞ΔΛ͑ͳ͍ σʔλଟ
.JDSPTFSWJDFTͳόον όονॲཧΛׂͯ͠ޙଓͷॲཧ5BTL2VFVF Λͬͯܨ͙ 5BTL2VFVF ॲཧରͷ ҰཡΛऔಘ Ұͭͣͭ ॲཧ͢Δ ͞Βʹࡉ͔͘ ॲཧ͢Δ
ͪ߹Θͤͯ ΫϦʔϯΞοϓ ʜ ʜ
όονͷΘ͕·· w ىಈ࣌Ҏ֎͓͔͚ۚͨ͘ͳ͍ w ("&4&ͳΒ࣮ߦ࣌ؒ՝ۚ w ίέͨΒࣗಈͰϦτϥΠ͍ͨ͠ w 5BTL2VFVFʹϦτϥΠػೳ͕͋Δ w
σʔλ͕૿͑ͨΒΦʔτεέʔϧ͍ͤͨ͞ w ࡉ͔͘λεΫʹΓ͚ͯεέʔϧΞτ 5BTL2VFVF
·ͱΊ 4DBMBͰॻ͍ͨόονΛ ("&4&Ͱಈ͔͢ͱͤʹͳΕΔ