Perl + Go実運用の話

by mackee

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Perl + Go࣮ӡ༻ͷ࿩ @mackee_w a.k.a Ϛίϐʔ ໘ന๏ਓΧϠοΫ 2015-12-16 Gotanda.pm #7 vs Yokohama.pm #13

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͜Μ͹ΜΘ

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୭ʁ • Yokohama.pm෭ Ϧʔμʔ • twitter:@mackee_w • github:mackee • ໘ന๏ਓΧϠοΫ • ιʔγϟϧήʔϜͷ ։ൃͱӡ༻PG

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Perl + Go࣮ӡ༻ͷ࿩ @mackee_w a.k.a Ϛίϐʔ ໘ന๏ਓΧϠοΫ 2015-12-16 Gotanda.pm #7 vs Yokohama.pm #13

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෭୊

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·ͨ͸ զʑ͸

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೗Կʹͯ͠Perl ͚ͩΛ࢖͏͜ ͱΛࢭΊͯ https://ﬂic.kr/p/q6cRh

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GoͱPerlͷΩ ϝϥΛӡ༻͢ ΔΑ͏ʹͳͬ ͔ͨ https://twitter.com/bradﬁtz/status/335213285815226369

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Section.0 Perl + Goͷ ߏ੒

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Unity੡ͷΫϥΠΞϯτ (iOS/Android)

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ELBͰड͚ͯPerlͷཱͬͯΔ AppαʔόʹϦόʔεϓϩΩγ

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MySQLͷRDSʹAppαʔό͕ ܨ͛ͯΔ

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ී௨ͳײ͡ Ͱ͸ʁʁʁ

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͜ͷߏ੒͕ෳ਺͋ͬͯ

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Goͷαʔόʹ಺෦APIͰୟ͘

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Section.1 Goͷ࠾༻

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༩͑ΒΕͨ৚݅ • ૝ఆDAUʹ଱͑ΒΕΔ͜ͱ • γϯάϧϚελʔͩͱͭΒͦ͏ͳײ͕͡աڈ ͷ࣮੷͔Βͯ͠૝ఆ͞ΕΔ • શੈքʹಉ͡ΞϓϦΛ഑৴͢Δ • ϚϧνϦʔδϣϯ/DC΋ࢹ໺ʹ

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γϟʔσΟϯά͸ʁʁʁ • DBIx::Classͷຐज़ʹΑΓطଘͷίʔυʹ͸ JOIN͕͍ͬͺ͍ • ͦͷ··΍ΔͳΒMySQL Clusterͱ͔Spider Engineͱ͔͚ͩΕͲฐࣾͰ࣮੷ͳ͍͠RDS ࢖͍͍ͨ͠

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ήʔϜ಺ͷσʔλͷྲྀΕΛݟΔ • શϢʔβ͸ϥϯΫͱݺ͹ΕΔख़࿅౓͝ͱͷ֊ ૚ʹ෼͔ΕͯͦͷதͰϦʔάʹ෼͔ΕΔ • ࢼ߹(ͱݺ͹ΕΔఆ࣌ʹߦΘΕΔGvG)͸Ϧʔά ಺ͷάϧʔϓ͝ͱʹߦΘΕΔ • γʔζϯ࠷ޙʹϦʔά಺ͷ੒੷্ҐऀͰτʔ φϝϯτΛߦ͏

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Αͬ͠ΌϦʔάͰDB෼͚Α͏ • ͪΐ͏ͲϦʔάΛ஍Ҭผʹ͢Δ࿩͕͋ͬͨͷ ͰͦΕʹͷ͔ͬͬͨ(=>ϚϧνϦʔδϣϯ) • Ͱ΋ݟͨ໨ϫϯϫʔϧυΛ࣮ݱ͢Δ(ϑϨϯυ ΍ΫϥϒҠ੶ͳͲ)ͨΊʹ͸தԝαʔό͕ඞཁ • ͦͯ͠๯಄ͷߏ੒͕ग़དྷ্͕ͬͨ

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͜ͷ࣌఺Ͱ๻͸ GoΛ࠾༻͢Δ ཧ༝Λ୳͍ͯͨ͠

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http://www.kayac.com/news/2014/07/golang

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ͦΕ͔ΒԿϲ݄͔ܦͬͯ • झຯͰॻ͍ͨΓଞͷαʔϏεͰϛυϧ΢ΣΞ ͱͯ͠ಈ͍͍ͯΔౕΛݟͨΓ͍ͯͯ͠ಛੑత ͳ΋ͷ͸ݟ͖͑ͯͨ • ιγϟήʔΛ·Δ͖ͬΓϦϓϨʔε͢Δͷ͸ େมͩͱࢥ͏͕ɺػೳ͕ߜΒΕͯͨΒ͍͍ײ ͡ʹͳΔؾ͕͢Δ

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Ϊδϡπతͳཧ༝෇͚ • Perlଆͷαʔόʹ͸1୆ʹ͖ͭଟ਺ͷϓϩηεཱ͕ͭ͜ͱ ʹͳΔ • ͦͷଟ਺ͷϓϩηε͔ΒͷHTTPϦΫΤετΛ͞͹͘ͷͨ Ίʹಉ͡ϓϩηε਺෼ͷPerlΛཱͯͯͨΒҙຯ෼͔Μͳ͍ ײ͡ʹͳΔͷͰ͸(΋ͪΖΜ಺෦APIͷ࢖͍ํʹΑͬͯ͸ͦ ͏ͳΒͳ͍ؾ΋͢Δ) • ϦιʔεΛޮ཰తʹ࢖͑ΔݴޠͰॻ͘ͷ͕͍͍ؾ͕͢Δʂ

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Section.2 GoΛॻ͘

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ࣾ಺ͷPerlͷίʔυ

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ܕͰΨνΨνʹݻΊ͍ͯΔ ͷ͕΄ͱΜͲ

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ܕΛຖճॻ͍͍ͯ ΔͳΒͦΕΛ࢖ͬ ͯίϯύΠϧ࣌ʹ ղܾͨ͠΄͏͕Α ͘Ͷʁ

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ํ਑ • Ͱ͖Δ͚ͩ Go way Λ໨ࢦ͢ • net/httpΛͦͷ··࢖͏ • Ͱ͖Δ͚ͩPerlΛॻ͍͍ͯͨ࣌ͱಉ͡ߟ͑Ͱॻ ͚ΔΑ͏ʹ͢Δ • Goʹͳͬͯศརʹͳͬͨ͜ͱ͸ར༻͢Δ

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IDLͷ࿩ • IDL = Interface Deﬁnition Language • ྫ: JSON Schema, Swagger, Protobuf • RPCͳͲͷΠϯλʔϑΣΠεΛઐ༻ݴޠͰఆٛ ͯͦ͠ΕΛར༻ͯ͠ίʔυΛੜ੒ͨ͠Γ͢Δ

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ฐࣾͷIDLͷ࿩ • ΋ͱ΋ͱBaalͱ͍͏ಠࣗIDL͕ࣾ಺Ͱ࢖ΘΕ͍ͯ ͨ • BaalͰServiceͱεΩʔϚΛఆٛ͠ɺC#(Unity)ͷ APIୟ͘ίʔυΛੜ੒͢Δ • PerlͰίϯτϩʔϥͷςετΛॻ͘ͱ͖ʹBaalͰ ܕ΍εΩʔϚ͕͍͋ͬͯΔ͔ΛνΣοΫ͢Δ

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go generateͷػӡ • BaalͰΫϥΠΞϯτ͕ੜ੒Ͱ͖ΔͳΒαʔό (ͷίϯτϩʔϥ)΋ੜ੒Ͱ͖Δ͸ͣ • ΍ͬͯΈͨ -> Ͱ͖ͨ • ϝϦοτ: ϦΫΤετΛύʔεͯ͠Goͷܕʹม ׵͢ΔͷͰิ׬ʹग़ͯ͘Δ࠷ߴ

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࣮ࡍͷBaalͷྫ ϑϨϯυਃ੥ namespace Data.Request { entity FriendRequestRequest { /# ਃ੥͢ΔϢʔβ #/ UserId: !long; /# ਃ੥͞ΕΔϢʔβ #/ TargetUserId: !long; } } namespace Data.Response { entity FriendRequestResponse { /# 1: ਃ੥த 2: ਃ੥͞Εத 3: ϑϨϯυొ࿥ࡁΈ #/ Status: !integer; } }

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࣮ࡍͷBaalͷྫ ϑϨϯυਃ੥ namespace Service { service FriendService { /# ༑ͩͪਃ੥ /api/friend/request POST #/ Request: <= !Data.Request.FriendRequestRequest => !Data.Response.FriendRequestResponse; } }

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ੜ੒͞Εͨίʔυ

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ੜ੒͞Εͨίʔυ

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͜ͷίʔυΛ࢖͏ͱ͜Ζ

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͜ͷίʔυΛ࢖͏ͱ͜Ζ ิ׬ʹग़ͯ͘Δʂʂʂ

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Go͔ΒDBΛѻ͏࿩ • ORMΛ࢖ΘͣʹΫΤϦϏϧμʔΛ࢖͏Α͏ʹͨ͠ • ϥΠϒϥϦ࠾༻ͷํ਑ͱͯ͠ʮࣗ෼͕ॻ͚ͦ͏ɺ ࣗ෼͕ϝϯςͰ͖ͦ͏ʯͳ΋ͷͱ͍͏ͷ͕͋Γ ·ͨ͠ • Ҏલgorp࢖ͬͨ͜ͱ͕͋ͬͯͦΜͳʹ޷͖͡Όͳ ͔ͬͨ

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Go͔ΒDBΛѻ͏࿩ • ͱ͸͍͑DDLͱGoͷstructͱಉ͜͡ͱΛ2౓ॻ ͘ͷ͸ਏ͍ • ͷͰGoͷstructΛλά෇͖Ͱॻ͍ͨΒDDLʹม ׵͢ΔͷΛॻ͍ͨ -> ࢖͑ͨ࠷ߴ • ੾Γग़ͨ͠ -> github.com/mackee/go-genddl

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͜Ε͕

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͜͏ͳΔ

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Section.3 Perl͔ΒGo

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Perl͔ΒGoʹͭͳ͙ • GoͷAPIαʔό͸εςʔτϨεͳRESTful JSON API • ೝূͳ͠ɺηογϣϯͳ͠ • FurlͰͭͳ͍ͰϦΫΤετΛJSONʹύʔε͢ ΔΫϥεΛPerlଆʹ༻ҙͯͦ͠ΕΛ࢖͏

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Goଆ͕མͪͯΔ࣌͸ʁ • Goଆ͕མͪͯશαʔόμ΢ϯ͸ආ͚͍ͨ • ํ਑1: ಺෦APIΛ༻͍ΔAPIΛݶఆ͢Δ • ํ਑2: མ͍ͪͯͯ΋ͳΜͱ͔Ͱ͖Δ৔߹͸ͳΜͱ͔͢ Δ • ํ਑3: མ͍ͪͯͯ΋ͳΜͱ͔Ͱ͖ͳ͍৔߹͸ૉ௚ʹࢮ ΜͰΤϥʔΛग़͢

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ͳΜͱ͔Ͱ͖Δ৔߹͸ͳΜͱ͔ ͢Δ • ྫ: ϩάΠϯޙʹදࣔ͞ΕΔϚΠϖʔδͷ͓஌ ΒͤAPI(࣮͸͓஌Βͤ͸தԝαʔόʹ಺෦API Ͱ໰͍߹Θͤͯ഑৴͍ͯ͠Δʂʂʂ) • ࢮΜͰ͍Δ৔߹ -> 200Ҏ֎͕ؼ͖ͬͯͨ࣌ͷ ྫ֎ΛΩϟονۭͯͬ͠ΆΛฦ͢ -> શମͱ͠ ͯ͸ੜ͔͢

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τϥϯβΫγϣϯ͕࢖͑ͳ͍໰ ୊ • ผαʔόผDBͳͷͰ౰વͦͷؒͰී௨ͷτϥϯβ Ϋγϣϯ͸࢖͑ͳ͍ • ͳͷͰGoଆAPIΛႈ౳(ಉ͡ϦΫΤετΛԿ౓ୟ͍ ͯ΋ಉ݁͡ՌʹͳΔ)ʹͳΔΑ͏ʹ഑ྀ͢Δ • ྫ: ϑϨϯυਃ੥Λ2౓ୟ͍ͯ΋ʮϑϨϯυਃ੥͠ ͨΑʔʯͱฦ͢ɻDBͷঢ়ଶ͸2౓໨͸ͦͷ··

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Section.4 Ωϝϥͷӡ ༻

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σϓϩΠํ๏ • consulͷϚϧνDCͰͦΕͧΕߏ੒͞Ε͍ͯΔ • ͦΕͧΕͷDCʹconsul eventΛൃߦ͢Δ -> stretcher ͰS3ʹ্͛ͨtarballΛpull͖ͯͯ͠σϓϩΠ • σϓϩΠ͢Δ΋ͷ͸ಉ͡tarballʂʂ̍̍ • daemontoolsͰཱͬͯΔαʔϏε͕ҧ͏

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GoͷϏϧυํ๏ • σϓϩΠεΫϦϓτ಺ͰϏϧυ͍ͯ͠Δ • ґଘύοέʔδ΋ͦ͜Ͱͱ͍ͬͯΔ • ςετ͍ͯ͠Δ΋ͷͱࠩ෼͕ग़ΔՄೳੑ͕͋Δ…… ͪΐͬͱා͍ • ґଘύοέʔδ͸ࣗ෼ͷσΟϨΫτϦҎԼʹִ཭͍ͯ͠ Δ(vendoringͬΆ͍͚ΕͲόʔδϣϯ؅ཧ͸͍ͯ͠ͳ͍)

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࣮ࡍʹӡ༻ʹೖͬͯ • GoଆىҼͷόά΍τϥϒϧ͸ͳ͠(!) • ຊ౰ʹؾΛ͚ͭ·ͬͯ͘ॻ͍͍ͯΔͷͰͦΕ͕ޭ Λ૗͍ͯ͠Δؾ͕͠ͳ͍Ͱ΋ͳ͍ • ͋ͱCPU΁ͷෛՙ͕ΊͪΌগͳͯ͘ຊ౰ʹಈ͍ͯ ͍Δͷ͔৺഑ʹͳΔϨϕϧ(ൺֱର৅͸DBIx::Class ͱDateTimeΛΨϯΨϯ࢖͍ͬͯΔPerlଆͷαʔό)

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೰Έ • νʔϜ಺ʹGoͷίʔυʹखΛग़ͤΔਓ͕গͳ ͍ • ͦΜͳʹػձ͕ଟ͘ͳ͍ͷ΋͋Δ • ؾ߹ೖΕͯॻ͔ͳ͍ͱ͍͚ͳ͍͠ɺԿΑΓจ Խݍ/ߟ͑ํ͕ҧ͏ͷͰֶͼ௚͠ʹͳΔ

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·ͱΊ • GoͰϑϨϯυͱ͔࣮૷͢Δͷ͕ඇৗʹ಄Λ͜Ͷ͘Γճͯ͠๐͸ ͖ͳ͕Β΍͚ͬͨΕͲษڧʹͳͬͨؾ͕͢Δ • ϚΠΫϩαʔϏεతʹαʔό෼͚Δͷ͸ΞϦ͔΋͠Εͳ͍(Ψνϟ ͱ͔ڞ௨Ͱ͠ΐ) • ͕ɺτϥϯβΫγϣϯ͕΍͸Γ೉఺ • GoͰϑϧεϖοΫͷιγϟήʔΛॻ͘ͷ͸ࠓͷஈ֊Ͱ͸ແཧʂɹ ͚ͩΕͲϥΠϒϥϦ(ಛʹORM)ͷ஌ݟ͕ஷ·Ε͹ߦ͚Δؾ͕͢Δ