SRE視点で振り返るメルカリのアーキテクチャ変遷と普遍的な考え

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1 SREࢹ఺ͰৼΓฦΔϝϧΧϦͷΞʔΩςΫνϟ มભͱීวతͳߟ͑

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2 Platform Engineering Division SRE team Engineering Manager    ΤϯδχΞϦϯάϚωʔδϟʔͱͯ͠Fintechࣄ ۀ͓ΑͼϝϧΧϦͷSREνʔϜΛ୲౰͠ɺ૊৫ ԣஅͰ৴པੑ޲্ʹऔ૊த ● SLOΛ༻͍ͨ؂ࢹج൫ͷߏங ● ΠϯγσϯτϚωδϝϯτମ੍ͷڧԽ ● BCP/DRઓུͷࡦఆɾਪਐ foostan

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3 ࠓ೔఻͍͑ͨ͜ͱ

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4 ࠓ೔࿩͢͜ͱ

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5 ϝϧΧϦͱΞʔΩςΫνϟͷมભ มԽΛਪ঑͢ΔจԽͷதͰαʔϏε͸ͲͷΑ͏ʹมԽ͖͔ͯͨ͠

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7 ϝϧΧϦͷมભ

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8 ϝϧΧϦͷ4ͭͷόϦϡʔ

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9 ϝϧΧϦͷ4ͭͷόϦϡʔ | มԽΛਪ঑͢ΔจԽ

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10 ΞʔΩςΫνϟͷมભ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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11 ● ϝϧΧϦϦϦʔε౰ॳ(2013)͸ ͘͞ΒΠϯλʔωοτͷੴङ DC্ͰՔಇ ● ͍ΘΏΔLAMPͰϞϊϦεͳߏ ੒ͩͬͨ 2013 ϞϊϦε / LAMP

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12 αʔϏε֦େʹ൐͏ ● ෳࡶԽ͢ΔγεςϜ ● σʔλͷ૿Ճ ● ։ൃ૊৫ͷ֦ுɺνʔϜͷ૿Ճ ● σϓϩΠස౓ͷ૿Ճ ● ϝϯςφϯείετͷ૿Ճ ● Πϯγσϯτͷ૿Ճ ● ੜ࢈ੑͷ௿Լ ● etc 2013 ~ 2016 ϞϊϦε / LAMPͷݶք

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13 2017 ϚΠΫϩαʔϏε΁ͷஈ֊తͳҠߦ ϚΠΫϩαʔϏε + Google Cloud ● ϞϊϦε͔Βঃʑʹ෼཭ ● ϚΠΫϩαʔϏε୯ҐͰ։ൃ/ӡ༻ ● API GatewayʹΑΔΠϯλʔ ϑΣʔεͷ౷Ұ ● etc ૊৫ͷٸܹͳ֦େʹ൐͏αʔϏε։ൃ ͷࠔ೉΍ӡ༻ͷ֦ுੑͷϘτϧωοΫ ղফΛਤΔ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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14 2019 ϝϧϖΠϩʔϯνͱڞ௨ϓϥοτϑΥʔϜ ϝϧϖΠͱϝϧΧϦͷϓϥοτϑΥʔϜ͸ڞ௨ Խ͞ΕɺαʔϏε։ൃ͓Αͼӡ༻͕౷Ұ͞Εͨ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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15 ϝϧίΠϯͷϦϦʔεʹ൐͍ɺ Platformӡ༻΋มԽ ҉߸ࢿ࢈ަ׵ۀΛਐΊΔͨΊ ͷηΩϡϦςΟରࡦ΍ίϯϓϥ ΠΞϯε؅ཧͷͨΊʹ͋ΒΏΔ ΋ͷͷ෼཭͕ٻΊΒΕͨ Mercoin Development Tool Production Mercari Development Tool Production 2023 ϝϧίΠϯϩʔϯνͱϓϥοτϑΥʔϜ෼཭ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ GitHub Logos and Usage https://brandfetch.com/okta.com

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16 ϝϧίΠϯͱϝϧΧϦؒ͸ Private Service Connect Ͱ઀ଓ͞ Ε ϚΫϩαʔϏεͷґଘؔ܎΋࠷খݶʹͳΔΑ͏ઃܭ͞Εͨ 2023 ϝϧίΠϯͷϩʔϯνͱΫϥελ෼཭ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ https://brandfetch.com/fastly.com

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17 ϝϧϖΠͷϨΠϠʔߏ଄Խ͞ΕϚ ΠΫϩαʔϏε͕ഁ୼࢝͠ΊΔ API Microservices ϨΠϠʔʹศ རAPI͕ੜ·ΕΔ ● ґଘ͕ूத ● ϝϯςίετͷ૿େ ● ᐆດͳ੹೚ڥք ● SPOFԽ ● etc 2024 Re Architecture ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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18 2024 ~ Re Architecture | ٯίϯ΢ΣΠͷ๏ଇʹΑΔղܾ ॎׂΓͷ૊৫ߏ଄΁ͷมߋ ● API MicroservicesϨΠϠʔͷ੔ཧ ● ґଘ͕ूத͍ͯͨ͠APIͷղମ͕ ਐߦ gRPC Federation ● ϝϧΧϦൃͷOSS ● Protocol Buffersͷఆٛʹैͬͯ BFFαʔϏεͱΠϯλʔϑΣʔε Λੜ੒͢Δ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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19 ϚΠΫϩαʔϏεઓུ͸਺೥ͷӡ༻ Ͱ໰୊఺΋ग़͖ͯͨ ● ଟछଟ༷ͳϚΠΫϩαʔϏε ● ϥΠϒϥϦ΍ίϯϙʔωϯτͳ ͲΛৗʹ࠷৽ʹอͭͷ͸ࠔ೉ ● ৽نߏங͢ΔͨΊͷπʔϧ΍ε ΫϦϓτɺνΣοΫϦετͳͲ ͷΤίγεςϜ͸ॆ࣮͍ͯ͠Δ ͕ɺֶशίετ͕ߴ͍ ● etc 2025 ϚΠΫϩαʔϏε΁ͷۤ೰

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20 ࣾ಺ͰϞϊϨϙ΍Ϟδϡϥʔ ϞϊϦεͷߏ૝͕ग़࢝Ίͨ    άϩʔόϧΞϓϦͰͷ࠾༻ ● طଘͷΤίγεςϜΛ׆ ༻ͭͭ͠ɺӡ༻ͷॊೈੑ Λҡ࣋͢Δ ● ॳظ։ൃͷεϐʔυͱক དྷతͳεέʔϥϏϦςΟ ͷόϥϯεΛऔΔ 2025 ϞδϡϥʔϞϊϦε ࢀߟ: άϩʔόϧల։Λࢧ͑Δج൫ͷཪଆ https://engineering.mercari.com/blog/entry/20251007-behind-the-infrastructure-powering-global-expansion/ [mercari GEARS 2025] Building Foundation for Mercari’s Global Expansion https://speakerdeck.com/mercari/mercari-gears-2025-building-foundation-for-mercaris-global-expansion

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21 ʮϝϧΧϦͱΞʔΩςΫνϟͷมભʯ·ͱΊ

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22 ϚΠΫϩαʔϏεͱ৴པੑࢦඪ ϚΠΫϩαʔϏεʹର͢ΔSLOӡ༻ͷ՝୊ΛͲ͏৐Γӽ͍͔͑ͯ͘

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23 ΞʔΩςΫνϟͱ੹೚ൣғ ֤νʔϜ͸ࣗ਎ͷ੹೚ൣғ ʹରͯ͠։ൃͱӡ༻Λߦ͏ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ Cloudflare Press Kit

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24 ໌֬ͳ੹೚ൣғͱᐆດͳ੹೚ൣғ ໌֬ͳ੹೚ൣғ ● ࣗ਎ͷαʔϏε͸໌֬ͰͦͷSLO Λ؅ཧ͢Δͷ͸ඞਢ ● ൣғ֎ͷଞͷSLOΛؾʹ͢Δʹ͸ ݶք͕͋Δ ᐆດͳ੹೚ൣғ ● ڞ௨APIͷ୲౰͸Ͳ͔͜ ● ଞϚΠΫϩαʔϏεʹґଘͯ͠Ξ ϥʔτ͕τϦΨʔ͞ΕΔ͜ͱ΋͠ ͹͠͹ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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25 ϚΠΫϩαʔϏεຖͷSLO؅ཧ ͢΂ͯͷΤϯυϙΠϯτʹରͯ͠໢ཏ తʹSLOΛઃఆ ● SLOϕʔεͷϞχλʔઃஔ ● ৄࡉʹෆ۩߹ՕॴΛݕ஌͠ɺΞ ϥʔτΛτϦΨʔՄೳ ● ϚΠΫϩαʔϏε୯ମͰ100Λ௒ ͑ΔSLOΛ؅ཧ ● SLOͷৼΓฦΓ΍Ξοϓσʔτ͕ ࠔ೉ʹ ● ϚΠΫϩαʔϏεؒͰSLOͷෆ੔ ߹͕ൃੜ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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26 ো֐ൣғͷಛఆ͸ࠔ೉ ͲͷAPI͕Ͳ͜ͰϦΫΤετ͞ΕΔ ͔ͷ೺Ѳ͸ࠔ೉ ● Ξϥʔτ͕τϦΨʔ͞Εͯ ΋ɺ͓٬͞·Өڹͱ௚઀݁ͼ ͔ͭͳ͍ ● ੹೚ൣғ֎ͷνʔϜʹͱͬͯԿ ͕ى͖͍ͯΔ͔೺Ѳ͢Δͷ͸ ೉͍͠ ● ݁Ռతʹো֐෮چ͕஗ΕΔ͜ ͱʹͳΔ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ Cloudflare Press Kit

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27 Critical User JourneyʢCUJʣͷಋೖ ͓٬͞·ʹϑΥʔΧε ● Ұ࿈ͷ͓٬͞·ମݧʹ ରͯ͠SLOΛఆٛ ● ͓٬͞·Өڹ͕໌֬ʹ ͳΓɺΠϯγσϯτͷ શମ೺Ѳ͕Մೳʹ ● ݱ࣮తͳ਺ͷCUJΛఆ ٛ࣋͠ଓతͳ؅ཧ͕Մ ೳʹ ϩΰग़యɿGoogle Cloud ϓϩμΫτ ΞΠίϯ

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28 CUJϕʔεSLOͷ࣮૷ 40ͷCUJΛఆٛ ● ྫʣ ○ ঎඼ݕࡧ ○ ग़඼ɾߪೖɾൃૹ ● ը໘ૢ࡞ + ը໘ભҠ ● Availableͳঢ়ଶΛఆٛ ● ίΞػೳʹϑΥʔΧε ࢀߟ: [SRE NEXT] ෳࡶͳγεςϜʹ͓͚ΔUser Journey SLOͷಋೖ https://speakerdeck.com/yakenji/sre-next-fu-za-nasisutemuniokeruuser-journey-slonodao-ru

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29 CUJϕʔεSLOͷ࣮૷ طଘͷςετϑϨʔϜϫʔΫΛ ྲྀ༻ͯ͠୳ࡧΛࣗಈԽ ● ΞϓϦ͸೔ʑมԽ͢Δ  → ΫϦςΟΧϧAPI΋มԽ ͢Δ ● ୳ࡧΛࣗಈԽͯ͠ৗʹ࠷৽ ͷঢ়ଶΛҡ࣋͢Δඞཁ͕͋ Δ

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30 CUJϕʔεSLOͷ࣮૷ LookerͰ݁ՌͷՄࢹԽ +TerraformͰϞχλϦϯά൓ө ● ΫϦςΟΧϧAPIͷՄࢹԽͱ APM΁ͷ൓ө΋൒ࣗಈԽ ● ޻਺Λ࡟ݮͭͭ͠౷ҰతͳϞ χλϦϯάΛ࣮ࢪ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ HashiCorp Brand Guidelines

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31 CUJϕʔεSLOͷ࣮૷ ো֐ൃੜޙɺଈ࠲ʹӨڹൣғΛಛఆ ● ӨڹCUJͱͱ΋ʹΞϥʔτ௨஌ ● Slack botͰӨڹൣғΛҰཡԽ

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32 Datadog WorkflowsʹΑΔݪҼಛఆ CUJϕʔεSLOΛτϦΨʔʹ༷ͯ͠ʑͳΞΫ γϣϯʹͭͳ͛Δ ● ্ҐϨΠϠʔ(API Gateway)ͷϝτϦΫ εΛར༻͍ͯ͠ΔͨΊͲ͜Ͱ໰୊͕ൃੜ ͔ͨ͠͸ಛఆͰ͖ͳ͍ ● Datadog WorkflowsΛར༻ͯ͠ɺಈతʹ ৘ใΛऔಘͯ͠ݪҼΛಛఆ͠୲౰νʔϜ Λݺͼग़͢ ● ࠓޙ͸αʔϏεͷεϖοΫ৘ใ΍ PlaybookΛར༻͠ɺࠜຊݪҼ෼ੳ΍ࢭ ݂ରԠͷࣗಈԽʹͭͳ͛Δ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ Cloudflare Press Kit https://slack.com/intl/ja-jp/media-kit https://brandguides.brandfolder.com/pagerduty/logo

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33 ʮϚΠΫϩαʔϏεͱ৴པੑࢦඪʯ·ͱΊ

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34 ৴པੑΛ༳Δ͕͢ϦεΫͱରࡦ ൃੜ͠͏ΔϦεΫʹରͯ͠ɺͲͷΑ͏ʹकΔ΂͖΋ͷΛҡ࣋͢Δ͔

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35 ৴པੑΛ༳Δ͕͢ϦεΫ ϦεΫ ● Րࡂɺେ஍਒(ट౎௚Լܕ) ● େن໛γεςϜো֐ ● αΠόʔ߈ܸ Өڹൣғ ● κʔϯن໛ ● Ϧʔδϣϯن໛ ● ґଘ͢ΔαʔϏε / ύʔτφʔاۀ

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36 ϦεΫʹର͢Δඋ͑ BCP/DR Business Continuity Plan = ࣄۀܧଓܭը ● ࡂ֐΍γεςϜো֐ͳͲͷ༗ࣄͷࡍʹɺ͓٬͞·΁ͷӨڹΛ࠷খ ݶʹ཈͑ɺॏཁۀ຿Λૣظʹ෮چɾܧଓͤ͞Δ͜ͱͰɺࣾձతͳ ੹೚ΛՌͨ͢ ● γεςϜʹݶΒͣɺਓ΍ݐ෺/ઃඋ΋ؚ·ΕΔ Disaster Recovery ● ॏཁۀ຿ΛఆΊͨ෮چ໨ඪ࣌ؒʢRTOʣͱ໨ඪ෮چ࣌఺ʢRPOʣ ʹج͖ͮɺ৘ใγεςϜ͓Αͼۀ຿ϓϩηεΛਝ଎ʹ෮چͤ͞Δ ● BCPʹؚ·ΕΔɺ۩ମతͳγεςϜ෮چʹؔ͢Δ͜ͱ

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37 ԿΛकΔ͔ ͢΂ͯͷαʔϏε/ػೳΛ100%Քಇ͠ଓ͚Δ͜ͱ͸Ͱ͖ͳ͍ ● ϏδωεӨڹ෼ੳ(BIA)Λߦ͍ॏཁۀ຿ΛఆΊΔ ● ॏཁۀ຿͕ఀࢭͨ͠ͱ͖ͷϦεΫ͸Կ͔ ○ ๏ྩҧ൓ ○ ϒϥϯυՁ஋ͷ௿Լ΍ܦࡁతଛࣦ ○ αʔϏεʹΑͬͯҟͳΔ͔ ■ ϝϧΧϦɺϝϧϖΠɺϝϧίΠϯɺetc ● ୡ੒͢΂͖෮چ໨ඪΛఆΊͯϦεΫͱίετͷόϥϯεΛߟ͑Δඞཁ͕ ͋Δ

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38 ෮چ໨ඪ ● RLO(Recovery Level Objective): ۓٸͷ෮چର৅ = ॏཁۀ຿ ● RTO(Recovery Time Objective) : ͍ͭ·Ͱʹ෮چͤ͞Δ͔ ● RPO(Recovery Point Objective): Ͳͷ࣌఺·ͰͷσʔλΛ෮چͤ͞Δ͔

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39 Multi-Zoneߏ੒ɿ(ൺֱత)ڱ͍ྖҬͷো֐΁ͷରԠ ୯Ұκʔϯʹ͓͍ͯো֐͕ൃੜ͠ ͨ͜ͱΛ૝ఆ͢Δ(୯ҰDCͷো֐/ ՐࡂͳͲ) Managed Service͸࠷খߏ੒͕ Multi-Zoneߏ੒ͷ΋ͷ΋ଟ͘ɺൺ ֱతίετ͕͔͔Βͳ͍

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40 Multi-Regionߏ੒ɿ޿Ҭো֐΁ͷରԠ ୯ҰϦʔδϣϯʹ͓͍ͯো֐͕ൃੜ͠ ͨ͜ͱΛ૝ఆ͢Δ(ट౎௚Լܕ஍਒౳Ͱ ౦ژϦʔδϣϯ͕յ໓͢ΔͳͲ) ೔ຊʹ͓͚ΔMulti-Regionߏ੒͸ଟ͘ ͷCloudϕϯμʔͰ౦ژ-େࡕߏ੒ʹͳ Δ͕ɺίετ͕ඈ༂తʹ্ঢ͠ɺ͞Β ʹDBؔ࿈ͰωοτϫʔΫ஗Ԇ͕໰୊ʹ ͳΓ࢝ΊΔ

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41 Multi-Regionߏ੒ͷ஫ҙ఺ɿSpannerͷ৔߹ ಛ௃ ● ߴ͍Մ༻ੑͱSLA ● RPO: 0 ͷ࣮ݱ ίετ໰୊ ● 3~4ഒ্ঢ͢Δ(ಡΈॻ͖ྔɺσʔλྔʹΑͬͯҟͳΔ) ωοτϫʔΫ஗ԆʹΑΔੑೳྼԽ ● ॻ͖ࠐΈ͸1 commit ͋ͨΓ਺ms~਺ेmsͷϨΠςϯγѱԽ͕૝ఆ͞ΕΔ ● εϧʔϓοτͷ্ݶ͕Լ͕Δ ● ΞϓϦέʔγϣϯଆͰͷରԠ͕ඞཁʹͳΔ৔߹͕͋Δ

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42 Multi-Regionߏ੒ͷ஫ҙ఺ɿGCSͷ৔߹ σʔλಉظͷ஗Ԇ໰୊ ● 1࣌ؒͰ99.9%͕ಉظ͞Εɺ࢒Γ ͸12࣌ؒҎ಺Λ໨ඪͱ͍ͯ͠Δ (RPO: 12࣌ؒ) ● ඞཁʹԠͯ͡Dual-regionͷλʔ ϘϨϓϦέʔγϣϯ(RPO: 15෼) Λར༻͢Δඞཁ͕͋Δ ● RPO: 0ͷ৔߹ͷ༻్ͱͯ͠͸࢖ ͑ͳ͍ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ

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43 Multi-Region vs ࠷খߏ੒ ίετ΍෺ཧతͳڑ཭͕཭Ε͍ͯΔ͜ͱ΁ͷ੍໿ɺγεςϜͷෳࡶ͞ʹΑΔ؅ཧίετ౳Λߟ͑ ͯʮकΔ΂͖΋ͷʯͷݱ࣮ղΛ୳Δ ϩΰग़య: Google Cloud ϓϩμΫτ ΞΠίϯ Cloudflare Press Kit HashiCorp Brand Guidelines

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44 ґଘ͢ΔαʔϏε / ύʔτφʔاۀͱͷBCPࠩҟ αʔϏε͸ࣾ಺Ͱ׬݁ͤͣʹ ύʔτφʔاۀͳͲ֎෦αʔϏ εʹґଘ͢Δ͜ͱ͕ଟ͍ ࣗ෼ͨͪͷBCPઓུΛ੔͑ͨ ͱͯ͠΋ɺ֎෦ʹґଘ͢Δ৔߹ ͸ͦΕΒ΁ͷରԠ΋ߟ͓͔͑ͯ ͳ͍ͱ͍͚ͳ͍ ϩΰग़య: Cloudflare Press Kit

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45 ґଘ͢ΔαʔϏε / ύʔτφʔاۀͱͷBCPࠩҟ RTO͕ಉਫ४Ͱ͋Ε͹ಉ͡λ ΠϛϯάͰ෮چ͕Մೳ    ͔͠͠ଟ͘ͷ৔߹ɺ෮چ໨ඪ͸ ҟͳΔͨΊɺ֎෦αʔϏε͕ ෮چ͠ͳ͍͜ͱΛߟྀ͢Δඞཁ ͕͋Δ ϩΰग़య: Cloudflare Press Kit

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46 ෦෼ఀࢭͷઃܭ ϝϧΧϦΞϓϦʹ͸ɺϑϦϚɺ ϝϧϖΠɺϝϧίΠϯͳͲɺ ༷ʑͳػೳؚ͕·Ε͍ͯΔ ͔ͦ͠͠ΕͧΕͷαʔϏεʹ͸ ͦΕͧΕͷґଘ͕ଘࡏ͢Δͨ ΊɺҰ੪ʹ෮چͰ͖ΔՄೳੑ ͸௿͍

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47 ෦෼ఀࢭͷઃܭ ྫ) γεςϜ͕෮چͯ͠΋ྲྀ௨ ໢͕ࢭ·͍ͬͯΔ৔߹ ϑϦϚΞϓϦ෦෼Λ෦෼తʹ੾ Γ཭͠ɺଞͷػೳΛಈ͔͢ඞཁ ͕͋Δ ػೳ/αʔϏε୯ҐͰఀࢭͯ͠΋ શମͱͯ͠ഁ୼͠ͳ͍Α͏ʹ࡞ Δඞཁ͕͋Δ

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48 ෮چ܇࿅ γεςϜͰकΕͳ͍෦෼͸܇࿅Ͱิ͏ ● RPO͸܇࿅ͯ͠΋ߴΊΔ͜ͱ͸Ͱ͖ͳ͍͕ɺ෮چ·Ͱ ͷ࣌ؒͷ୹ॖʹΑͬͯRTOΛߴΊΔ͜ͱ͸Մೳ ● ܇࿅ʹΑͬͯRPO/RTO͕ୡ੒Ͱ͖Δ͔Ͳ͏͔ͷ֬ೝΛ ߦ͏ ● γεςϜ͸ৗʹมԽ͍ͯ͠ΔͷͰఆظతʹߦ͏ඞཁ͕ ͋Δ ͜Ε͸େن໛ো֐΍ࡂ֐ʹݶΒͣ೔ʑͷΠϯγσϯτʹؔ ͯ͠΋ಉ͡࿩

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49 ΠϯγσϯτϨεϙϯεͱֶͼ ো֐΍ࣦഊ͔ΒֶΜͰ࣍ʹ׆͔͢ͷ͕ॏཁ ● ৼΓฦΓ ○ ݪҼ෼ੳɺ߃ٱରԠ͓Αͼ࠶ൃ๷ࢭͷཱҊ ○ γεςϜͷमਖ਼ɺΞʔΩςΫνϟͷมߋɺӡ༻ϓϩη εͷվળͳͲͰ࣍ʹܨ͛Δ ● Ϩϙʔτ࡞੒ / ڞ༗ ○ ࣾ಺޲͚ / ࣾ֎޲͚ͷใࠂ ○ φϨοδڞ༗ / ԣల։ ● Πϯγσϯτ෼ੳ ○ μογϡϘʔυ࡞੒ɺ܏޲෼ੳɺಛ௃ͷՄࢹԽ

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50 ·ͱΊ

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51 มԽ͢Δ؀ڥͷதͰɺ৴པੑΛकΓଓ͚ΔͨΊʹ ΞʔΩςΫνϟ͸มԽ͍ͯ͘͠ ● ৽͍͠ϏδωεΛ࢝ΊΔͨΊ ● ϑΣʔζͷมԽʹରԠ͢ΔͨΊ ● ʮ·΋Δ΂͖΋ͷʯΛकΔͨΊ γεςϜ͸յΕΔ ● ࡂ֐ΛࢭΊΔ͜ͱ͸Ͱ͖ͳ͍ ● ো֐͸͍ͭͰ΋ى͜Γ͏Δ

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52 มԽ͢Δ؀ڥͷதͰɺ৴པੑΛकΓଓ͚ΔͨΊʹ ͓٬͞·໨ઢͷSLOΛ৴པੑͷࢦඪͱͯ͠ఆΊΔ ● CUJϕʔεSLOͷΑ͏ʹ͓٬͞·΁ͷ৴པੑΛ਺஋Խ͢Δ ● ͓٬͞·Өڹ͕ग़ͨ৔߹ɺଈ࠲ʹݕ஌/ରԠͰ͖ΔΑ͏ʹ͢Δ कΔ΂͖΋ͷΛఆٛ͠ɺ΋͠΋ʹඋ͑Δ ● ϦεΫͱίετΛߟྀͯ͠ΞʔΩςΫνϟΛ޻෉͢Δ ● ܇࿅΍ΠϯγσϯτϨεϙϯε͔Βͷֶͼ͸ॏཁ ● ৼΓฦΓʹΑΔγεςϜͷमਖ਼ɺΞʔΩςΫνϟͷมߋɺӡ༻ϓϩηεͷ վળͳͲ͕৴པੑΛߴΊΔ

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53 ࠓ೔఻͍͑ͨ͜ͱ