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ΧΦεΤϯδχΞϦϯάʹ͍ͭͯϠϗʔͰௐ΂͖ͯ·ͨ͠ !.BLVBLF-51BSUZ

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l$IBPT&OHJOFFSJOHz

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lΧΦεϞϯΩʔzͳͲͷϓϥΫςΟε͕༗໊ ݗҾͨ͠/FUqJYͷଘࡏ͕େ͖͍ ྺ࢙ͱͱ΋ʹৼΓฦͬͯΈΔ $IBPT&OHJOFFSJOH

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ΧΦεΤϯδχΞϦϯάͷྺ࢙ )JTUPSZPG$IBPT&OHJOFFSJOH ݩωλ͸(SFNSJOͷࢿྉʮ$IBPT&OHJOFFSJOHUIFIJTUPSZ QSJODJQMFT BOEQSBDUJDFʯ IUUQTXXXHSFNMJODPNDPNNVOJUZUVUPSJBMTDIBPTFOHJOFFSJOHUIFIJTUPSZQSJODJQMFTBOEQSBDUJDF

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/FUqJY͕ʮ$IBPT.POLFZʯΛ։ൃɻ3FTJMJFODZ ճ෮ੑ ͷ୲อΛ֬ೝ͢Δ࢓૊Έ ͱͯ͠ੜ·Εͨɻ͜ͷ೥/FUqJY͕"84ʹຊ֨Ҡߦɻॏཁͳίϯϙʔωϯτ͕ఀࢭͨ͠ͱ ͖ʹγεςϜ͕ͲͷΑ͏ͳԠ౴Λ͔ࣔ֬͢ೝ͢ΔςΫϊϩδʔ͕ඞཁͩͬͨɻ ೥ IUUQTXXXHSFNMJODPNDIBPTNPOLFZ

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/FUqJY͕ʮ4JNJBO"SNZʯΛ։ൃɻ͜Ε͸લਐͷ$IBPT.POLFZΛڧԽ͠ɺ ো֐஫ೖςετ 'BJMVSF*OKFDUJPO5FTUJOH ͱ༷ͯ͠ʑͳো֐Λى͜͢Α͏ʹػೳ௥Ճ͠ ͨ΋ͷɻݱࡏ͸DIBPTNPOOLFZϓϩδΣΫτͱͯ͠ಠཱ͍ͯ͠Δɻ ೥ IUUQTNFEJVNDPNOFUqJYUFDICMPHUIFOFUqJYTJNJBOBSNZFGCBC SimianArmy Chaos Monkey/Latency Monkey/Conformity Monkey/Doctor Monkey/Janitor Monkey/Security Monkey/10–18 Monkey/Chaos Gorilla

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$IBPT.POLFZΛ(JUIVC্Ͱެ։ɻ ಉ࣌ʹʮ༧ظ͠ͳ͍ো֐΁ͷ࠷ળͷରԠࡦ͸ɺසൟʹো֐Λى͜͢͜ͱɻʯͱ͍͏ߟ͑Λ ࣔͨ͠ɻ͜ͷߟ͑ํ͸ʮ13*/$*1-&40'$)"04&/(*/&&3*/(ʯ ΧΦεΤϯδχΞ Ϧϯάݪଇ ʹͭͳ͕͍ͬͯ͘ɻ ೥ IUUQTHJUIVCDPN/FUqJYDIBPTNPOLFZ IUUQQSJODJQMFTPGDIBPTPSH “have found that the best defense against major unexpected failures is to fail often. [༧ظ͠ͳ͍ॏେͳࣦഊʹର͢Δ࠷ળͷ๷ޚࡦ͸ɺසൟʹࣦഊ͢Δ͜ͱɻ] By frequently causing failures, we force our services to be built in a way that is more resilient” [සൟʹࣦഊΛҾ͖ى͜͢͜ͱʹΑͬͯɺαʔϏεͷϨδϦΤϯεΛΑΓڧ੍͢Δɻ]

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/FUqJY͕ʮ$IBPT&OHJOFFSʯͱ͍͏ઐ໳৬Λ੍ఆɻ '*5 'BJMVSF*OKFDUJPO5FTUJOH ͱ͍͏֓೦ΛϒϩάͰൃද ͨ͠ɻ"84SF*OWFOUͰ΋'*5ͷऔΓ૊Έʹ͍ͭͯൃ ද͕ߦΘΕͨɻ ೥ IUUQTNFEJVNDPNOFUqJYUFDICMPHpUGBJMVSFJOKFDUJPOUFTUJOHEFBCC IUUQTXXXTMJEFTIBSFOFU"NB[PO8FC4FSWJDFTQGDFNCSBDJOHGBJMVSFGBVMUJOKFDUJPOBOETFSWJDFSFMJBCJMJUZBXTSFJOWFOU

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/FUqJYͷΧΦεΤϯδχΞνʔϜͳͲʹΑΔ͞Βʹཧ࿦Խ͞Εͨ࿦จʮ$IBPT&OHJOFFSJOHʯͷൃදɻ $IBPT&OHJOFFSJOHIUUQTBSYJWPSHGUQBSYJWQBQFSTQEG 13*/$*1-&40'$)"04&/(*/&&3*/( ΧΦεΤϯδχΞϦϯάͷݪଇ ͕։ઃɻ IUUQQSJODJQMFTPGDIBPTPSH "84"ESJBO$PDLDSPGUʹΑΔʮ$IBPT"SDIJUFDUVSFʯͷ঺հɻ IUUQTXXXJOGPRDPNKQOFXTDPDLDSPGUDIBPTBSDIJUFDUVSF /FUqJYग़਎ͷͷ,PMUPO"OESVT͕ʮ'BJMVSFBTB4FSWJDFʯΛܝ͛Δͷ(SFNMJOͳͲ͕αʔϏεԽɻ IUUQTXXXHSFNMJODPN ೥

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(SFNMJOࣾத৺ʹʮ$IBPT$POGʯ͕։࠵ɻ IUUQTDIBPTDPOGTQMBTIUIBUDPN IUUQTUIJOLJUDPKQBSUJDMF ೔ຊࠃ಺Ͱ΋ΫοΫύου͕$IBPT&OHJOFFSJOHͷಋೖΛϒϩάͰൃදɻ ʮ$IBPT&OHJOFFSJOH΍͍ͬͯ͘એݴ$PPL1BE%FWFMPQFST#MPHʯ IUUQTUFDIMJGFDPPLQBEDPNFOUSZ ೥

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ଟ͘ͷେखٕज़اۀ͕औΓ૊ΈΛൃදɻ5XJMJPɺ /FUqJYɺ-JOLFE*Oɺ'BDFCPPLɺ(PPHMFɺ .JDSPTPGUɺ"NB[POͳͲ͕Ϧετʹؚ·ΕΔɻ ೥ݱࡏ ˞$IBPT&OHJOFFS$PNNVOJUZʹΑΔࢿྉ https://coggle.it/diagram/WiKceGDAwgABrmyv/t/chaos-engineeringcompanies%2C-people%2C-tools-practices/0a2d4968c94723e48e1256e67df51d0f4217027143924b23517832f53c536e62

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༷ʑͳπʔϧ͕஀ੜ͠ίϛϡχςΟ͕ଘࡏ͍ͯ͠Δɻ BXFTPNFDIBPTFOHJOFFSJOH ೥ݱࡏ

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ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ

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ʮͲ͏͍͏໰୊͕ى͖Δ͔ʁʯʹ౴͑Δ ૝ఆͯ͠Δ͜ͱ ,OPXO ͸͋Δఔ౓ରԠग़དྷΔ ૝ఆͯ͠ͳ͍͜ͱ 6OLOPXO ͸ରԠग़དྷͳ͍ ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ

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,OPXO 6OLOPXO ஌͍ͬͯͯ ཧղ͍ͯ͠Δ͜ͱ ஌͍ͬͯΔ͕ े෼ʹཧղ͍ͯ͠ͳ͍͜ͱ ཧղ͍ͯ͠Δ͕ ҙ͍ࣝͯ͠ͳ͍͜ͱ ؾ෇͍͍ͯͳ͍ ͋Δ͍͸׬શʹཧղ͍ͯ͠ͳ͍͜ͱ ,OPXO 6OLOPXO ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ IUUQTXXXHSFNMJODPNDPNNVOJUZUVUPSJBMTDIBPTFOHJOFFSJOHUIFIJTUPSZQSJODJQMFTBOEQSBDUJDF ஌ࣝͷ෼ྨ

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,OPXO 6OLOPXO ى͖Δ͜ͱ͸஌͍ͬͯͯ ରԠ͢Δํ๏΋஌͍ͬͯΔ ى͖Δ͜ͱ͸஌͍ͬͯΔ͕ ରԠ͢Δํ๏͸෼͔Βͳ͍ ͳͥى͖Δͷ͔͸෼͔Βͳ͍͕ ରԠ͢Δํ๏͸஌͍ͬͯΔ ى͖Δ͜ͱ͸஌Βͳ͍ ରԠ͢Δํ๏΋෼͔Βͳ͍ ,OPXO 6OLOPXO ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ ى͖͏ΔγεςϜো֐ͱରԠ

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,OPXO 6OLOPXO ى͖Δ͜ͱ͸஌͍ͬͯͯ ରԠ͢Δํ๏΋஌͍ͬͯΔ ى͖Δ͜ͱ͸஌͍ͬͯΔ͕ ରԠ͢Δํ๏͸෼͔Βͳ͍ ͳͥى͖Δͷ͔͸෼͔Βͳ͍͕ ରԠ͢Δํ๏͸஌͍ͬͯΔ ى͖Δ͜ͱ͸஌Βͳ͍ ରԠ͢Δํ๏΋෼͔Βͳ͍ ,OPXO 6OLOPXO ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ ى͖͏ΔγεςϜো֐ͱରԠ

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,OPXO 6OLOPXO ى͖Δ͜ͱ͸஌͍ͬͯͯ ରԠ͢Δํ๏΋஌͍ͬͯΔ ى͖Δ͜ͱ͸஌͍ͬͯΔ͕ ରԠ͢Δํ๏͸෼͔Βͳ͍ ͳͥى͖Δͷ͔͸෼͔Βͳ͍͕ ରԠ͢Δํ๏͸஌͍ͬͯΔ ى͖Δ͜ͱ͸஌Βͳ͍ ରԠ͢Δํ๏΋෼͔Βͳ͍ ,OPXO 6OLOPXO ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ ى͖͏ΔγεςϜো֐ͱରԠ

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,OPXO 6OLOPXO ஌͍ͬͯͯ ཧղ͍ͯ͠Δ͜ͱ ஌͍ͬͯΔ͕ े෼ʹཧղ͍ͯ͠ͳ͍͜ͱ ཧղ͍ͯ͠Δ͕ ҙ͍ࣝͯ͠ͳ͍͜ͱ ؾ෇͍͍ͯͳ͍ ͋Δ͍͸׬શʹཧղ͍ͯ͠ͳ͍͜ͱ ,OPXO 6OLOPXO ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ IUUQTXXXHSFNMJODPNDPNNVOJUZUVUPSJBMTDIBPTFOHJOFFSJOHUIFIJTUPSZQSJODJQMFTBOEQSBDUJDF ஌ࣝͷ෼ྨ

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,OPXO 6OLOPXO ஌͍ͬͯͯ ཧղ͍ͯ͠Δ͜ͱ ஌͍ͬͯΔ͕ े෼ʹཧղ͍ͯ͠ͳ͍͜ͱ ཧղ͍ͯ͠Δ͕ ҙ͍ࣝͯ͠ͳ͍͜ͱ ؾ෇͍͍ͯͳ͍ ͋Δ͍͸׬શʹཧղ͍ͯ͠ͳ͍͜ͱ ,OPXO 6OLOPXO ΧΦεΤϯδχΞϦϯά͸ԿΛղܾ͢Δͷ͔ʁ ࣮ݧΛ܁Γฦ͠ɺLOPXOLOPXOTΛ޿͛Δ͜ͱ͕ ϨδϦΤϯεΛߴΊΔ ஌ࣝͷ෼ྨ

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IUUQTUFDIDPOGDPPLQBEDPNUBLVZB@LPTVHJZBNBIUNM 3FTJMJFODF͔Β࢝ΊΔΧΦεΤϯδχΞϦϯάੜ׆

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·ͱΊ

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ΧΦεΤϯδχΞϦϯά͸ ϚΠΫϩαʔϏεΞʔΩςΫνϟͱͱ΋ʹ ൃలͭͭ͋͠ΔϓϥΫςΟε

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https://speakerdeck.com/adhorn/chaos-engineering-why-breaking-things-should-be-practiced-14fe367f-db3d-4d1c-b24a-3826a22896d8?slide=3

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NBLVBLFDPN "VUI 1BZ "1* 1VTI NBLVBLFDPN 'FFE "ENJO (5.

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·ͱΊ ҙࣝ͠ͳ͚Ε͹ͳΒͳ͍ίϯϙʔωϯτ͸જࡏతʹ૿͍͑ͯΔɻ γεςϜؒͷґଘ؅ཧ΍ෳࡶੑ͸૿͍ͯ͠Δɻ ΧΦεΤϯδχΞϦϯάͷΤοηϯεΛ্ख͘׆͔͍ͨ͠ɻ