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自然のごとく複雑化したウェブシステムの運用自律化に向けて / Experimentable Infrastructure - Speaker Deck
自然のごとく複雑化したウェブシステムの運用自律化に向けて / Experimentable Infrastructure
2017/11/24 人工知能学会 合同研究会 第3回ウェブサイエンス研究会: 自然現象としてのウェブ 招待講演
Yuuki Tsubouchi (yuuk1)
November 24, 2017
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ࣗવͷ͝ͱ͘ෳࡶԽͨ͠ ΣϒγεςϜͷӡ༻ࣗԽ ʹ͚ͯ גࣜձࣾͯͳ ௶ ༎थ id:y_uuki / @y_uuk1 2017/11/24
ਓೳֶձ ߹ಉݚڀձ ୈ̏ճΣϒαΠΤϯεݚڀձ: ࣗવݱͱͯ͠ͷΣϒ টߨԋ -
id:y_uuki / @y_uuk1 ௶ ༎थ https://yuuk.io/ 2012 େࡕେֶ جૅֶ෦ใՊֶݚڀՊ ଔۀ
2013 େࡕେֶ ใՊֶݚڀՊത࢜લظ՝ఔ ୀֶ ಉ גࣜձࣾͯͳ ৽ଔೖࣾ 2017ݱࡏ γχΞΤϯδχΞɺςοΫϦʔυ -
σʔληϯλʔ Πϯλʔ ωοτ 1$ ਓʑ *P5ػث εϚʔτ ϑΥϯ αʔό αʔό
αʔό σʔληϯλʔ αʔό αʔό αʔό -
ΣϒγεςϜͷ։ൃͱӡ༻ • ࣄۀͷ։ൃͱӡ༻ΛʮSoftware Engineerʯ͕୲͏ • ΣϒγεςϜͷ৴པੑΛ୲อ͢ΔͨΊͷ։ൃͱӡ༻Λ ʮSite Reliability Engineer(SRE)ʯ͕୲͏ •
ҰੲલͷදݱʮΣϒΦϖϨʔγϣϯΤϯδχΞʯ • ͞ΒʹͦͷੲɺʮγεςϜཧऀʯʮαʔόཧऀʯ • ࡉ͔ͳࠩҟ͋ΕͲɺେ·͔ͳ2ߏΣϒۀքͰ ීวత -
Site Reliability Engineering HOW GOOGLE RUNS PRODUCTION SYSTEMS Photo by
O’reilly Media / CC by 3.0 https://shop.oreilly.com/product/0636920041528.do https://creativecommons.org/licenses/by/3.0/deed -
ΣϒγεςϜͷ৴པੑͱ • γεςϜ͕ఏڙ͢Δͷͷ͏ͪɺ࠷جຊతͳػೳ • γεςϜ͕ٻΊΒΕΔػೳΛɺఆΊΒΕͨ݅ͷԼͰɺఆΊ ΒΕͨظؒʹΘͨΓɺোΛى͜͢͜ͱͳ࣮͘ߦ͢Δ֬ • ʮఆΊΒΕͨ݅ʯʹɺʮԠ͕࣌ؒ˓msҎԼʯͳͲΛؚΉ • ͨͩ͠ɺ100%ͷ৴པੑΛࢦ͍͚ͯ͠ͳ͍
• ϢʔβͷϥοϓτοϓɺࣗͷWifiɺISPͳͲཧ֎ͷγεςϜ͕͋Δ • ৴པੑࣄۀεϐʔυͱͷτϨʔυΦϑʹͳΓ͍͢ [1] [1]: P. O'Connor and A. Kleyner, Practical Reliability Engineering, 5th edition: Wiley, 2012. -
৴པੑΛकΔࣄ • αʔϏεͷՄ༻ੑɺϨΠςϯγɺύϑΥʔϚϯεɺޮ ੑɺมߋཧɺϞχλϦϯάɺΩϟύγςΟϓϥϯχϯ άʹΛͭ • ඞཁͳεΩϧଟذʹΘͨΔ • ίϯϐϡʔλΞʔΩςΫνϟɺωοτϫʔΫɺOSɺࢄγες Ϝɺσʔλϕʔεٕज़ɺΣϒαʔόͷઐࣝ
• ιϑτΣΞΤϯδχΞϦϯά [1] [1]: Betsy Beyer, et al.ฤ ᖒాஉ, et al.༁ Skyגࣜձࣾ ۄཽ࢘༁,ʮSRE αΠτϦϥΠΞϏϦςΟΤϯδχΞϦϯά ――Googleͷ ৴པੑΛࢧ͑ΔΤϯδχΞϦϯάνʔϜʯ,ΦϥΠϦʔɾδϟύϯ,2017/08 -
৴པੑΛकΓͭͭɺඅ༻Λ࠷খʹ͢Δ • ৴པੑΛकΔ͚ͩͰͳ͘ɺਓ݅අσʔληϯλʔඅ༻Λখ ͘͢͞Δ͜ͱٻΊΒΕΔ • ਓ݅අιϑτΣΞʹΑΔӡ༻ޮԽʹΑΓݮ • σʔληϯλʔඅ༻ιϑτΣΞͷ࣮ߦޮͷ্ʹΑΓݮ • ৴པੑΛ੍݅ͱͯ͠ɺඅ༻Λ࠷খʹ͢Δ࠷దԽΛղ
͍͍ͯΔͱ͍͑Δ • ಛʹఆܕ࡞ۀ(τΠϧ)ΛࣗಈԽ͠ɺਓؒͰͳ͘ίϯϐϡʔλ Λεέʔϧͤ͞ΔΑ͏ʹ͢Δ͜ͱ͕େ͖ͳࣄ -
ࣗ࡞αʔό࣌ ~2010 • ळ༿ݪͰύʔπΛߪೖ͠ɺαʔόΛਓ͕Έཱ͍ͯͯͨ • ΈཱͯͨαʔόΛϥοΫʹख࡞ۀͰஔ͍ͯͨ͠ • ࣗ࡞ͰյΕ͍ͨ͢ΊɺԽػߏεέʔϧΞτػ ߏͳͲ৴པੑΛߴΊΔجૅػೳͷਁಁ •
ͷͪʹϕϯμʔαʔόΫϥυҠߦ͕ਐΉ • XenKVMͳͲͷαʔόԾԽٕज़ʹΑΓɺঃʑʹαʔ όΛϞϊ͔Βσʔλͱͯ͠ѻ͏ྲྀΕ͕Ͱ͖͡ΊΔ -
Ϋϥυ࣌ 2011ʙ • 2011AWS౦ژϦʔδϣϯ։ઃ͠ɺ༗໊Σϒاۀ͕Ҡߦ ͠͡ΊΔ • ඞཁͳͱ͖ʹ͙͢ʹϋʔυΣΞϦιʔε͕खʹೖΔ࣌ • ैདྷ୯ҐͷϦʔυλΠϜ͕୯Ґʹ •
αʔόΛϓϩάϥϚϒϧʹ࡞͢Δ֓೦͕ొ • ෛՙʹԠͯࣗ͡ಈͰαʔόΛ૿͢ͳͲͷಈతͳΠϯϑϥ ετϥΫνϟΛߏஙͰ͖ΔΑ͏ʹͳ͖ͬͯͨ https://aws.amazon.com/jp/aws_history/details/ -
Site Reliability Engineering(SRE)ͷొ • ʮ৴པੑʯΛ୲อ͢ΔΤϯδχΞϦϯάͱ͍͏ɺԿΛ͢Δ ٕज़ΤϯδχΞͳͷ͔͕͖ͬΓఆٛ͞Εͨ • ͦΕ·ͰɺʮΠϯϑϥʯʮԼճΓʯͳͲͱ͍͏ݺΕํ • ΣϒΦϖϨʔγϣϯͱ͍͏୯ޠ͕͋ͬͨɺΦϖϨʔγϣ
ϯ=ӡ༻ͷΠϝʔδ͕ڧ͍ • SREιϑτΣΞ։ൃΛॏࢹ͍ͯ͠Δ “ΠϯϑϥνʔϜվΊ Site Reliability Engineering (SRE) νʔϜʹͳΓ·ͨ͠” https://tech.mercari.com/entry/2015/11/18/153421 -
ຊා͍ΣϒγεςϜ • ҟৗ͕ൃੜͯ͠ݪҼ͕Θ͔Βͳ͍͜ͱ͕͋Δ • γεςϜʹର͢Δૢ࡞͕҆શ͔Ͳ͏͔อূ͞Ε͍ͯͳ͍ • ࣗಈԽ͕ਐΜͰ͍Δ͔Βͦ͜ɺෆ໌Ͱ͋Δ͜ͱ͕ҟৗʹ ର͢ΔʮڪාʯΛ͏Ή • γεςϜͷৼΔ͍͕·ΔͰʮࣗવݱʯʹײ͡ΒΕΔ
• ৼΔ͍ͷղ໌ʹଟ͘ͷ࣌ؒΛͱΒΕͨΓɺΘ͟ͱࣗಈ ԽΛආ͚ͯɺਓؒͷஅΛ͞͏ͱ͢Δ͜ͱ͕͋Δ -
ຊා͍ΣϒγεςϜӡ༻: ྫ1 • ϋʔυΣΞͷΩϟύγςΟʹ·ͩ༨༟͕͋Δʹ͔͔ΘΒͣɺ 1͋ͨΓͷॲཧೳྗ͕಄ଧͪʹͳΔέʔε • Λࣗಈ૿Ճͤ͞Δͷɺಛఆϊʔυͷଓͷڐ༰ྔΛ ͑ͯ͠·͏ • ϚϧνεϨουϞσϧͷWebαʔόͰɺڞ༗ϝϞϦ্Ͱάϩʔό
ϧϩοΫΛͱ͍ͬͯΔՕॴ͕͋Γɺಉ࣌ॲཧ͕΄΅1 • ScalaͷॲཧܥϨϕϧͷͰಛఆʹ͕͔͔࣌ؒͬͨ -
• ࢄσʔλϕʔεͷωοτϫʔΫஅ • ϚελʔɾεϨʔϒͷ2ߏͷσʔλϕʔεαʔό • Ϛελʔ=>εϨʔϒϦΞϧλΠϜʹσʔλΛෳ • Ϛελʔϊʔυ͕μϯ͢ΔͱϑΥϩϫʔϊʔυ͕Ϛε λʔঢ֨ •
ωοτϫʔΫ͕அ͞ΕΔͱɺ྆ํͱϚελʔ • ͲͪΒ͔Ұํσʔλ͕ॻ͖ࠐ·ΕɺҰ؏ੑ͕ͳ͘ͳΔ ຊා͍ΣϒγεςϜӡ༻: ྫ2 -
ࣗಈԽʹΑΔฐ • අ༻Λগͳ͘͢Δ͜ͱͰɺࣗಈԽԽػߏΛඋ͑Δ͜ͱ Ͱ৴པੑ͕Լ͕Δ͜ͱ͕͋Δ • ࣗಈεέʔϧ͢Δͱผͷ෦͕٧·Δ • ԽػߏʹΑΓɺҰ؏ੑ͕ࣦΘΕΔ͜ͱ͕͋Δ • ܥશମͷਫ਼៛ͳཧղͱΤϥʔέʔεͷ໖ີͳચ͍ग़͕͠ඞཁ
• ࠷ۙίϯϙʔωϯτΛ૿͢ํٕज़͕ਐΜͰ͍Δͨ Ίɺύλʔϯ͕૿େ͠ਓ͕ཧղ͢Δ͜ͱ͕͘͠ͳ͍ͬͯΔ -
ࢄγεςϜͷෳࡶ͞ • ҎԼͷࢄγεςϜͷલఏ͕͋Γɺཧ๏ଇʹͤΒΕΔ • ϊʔυ(ϋʔυΣΞ)յΕ͏Δ • ωοτϫʔΫஅɾԆ͕͋ΓɺଳҬ༗ݶͰ͋Δ • ͜ΕΒͷΤϥʔ͔Βͷճ෮ػߏෳࡶʹͳΓ͕ͪ •
TCPͷϑϩʔ੍ޚ࠶ૹ੍ޚͳͲ͕Α͍ྫ • σʔλϕʔεʹ͓͍ͯɺωοτϫʔΫஅ͞ΕͯՄ༻ੑͱҰ ؏ੑΛҡ࣋͢Δ͜ͱ͍͠ (CAPఆཧ) -
ೖྗύλʔϯͷෳࡶ͞ • ਓؒɺݕࡧΫϩʔϥɺεύϚʔͳͲͷ׆ಈʹԠͯ͡γεςϜͷ ೖྗύλʔϯಥൃతʹมԽ͢Δ • ੍ޚֶͰ͍͏ͱ͜Ζͷ֎ཚ • γεςϜͷڍಈΛ༧ଌ͢Δʹ࠶ݱੑ͕ඞཁ • ͔͠͠ɺΣϒγεςϜʹର͢Δ͋ΔظؒͷೖྗύλʔϯΛશ
ʹ࠶ݱ͢Δ͜ͱ͍͠ • σʔλϕʔεͳͲͷอଘঢ়ଶΛ࣌ͷظؒʹ্ͨ͠Ͱɺೖྗ ύλʔϯΛྲྀ͠ࠐΉ -
ෳࡶੑͷج४ • αΠζ • Τϯτϩϐʔ • ΞϧΰϦζϜใྔ • ཧਂ •
ྗֶਂ • ܭࢉೳྗ • ౷ܭతͳෳࡶੑ • ϑϥΫλϧ࣍ݩ • ֊ -
ෳࡶੑͷج४: αΠζ • ͯͳͷγεςϜαΠζ த~େنఔ • αʔϏε: 100+ (෦ؚ͚Ή) •
ϩʔϧ: 1000+ • ϗετ: 1000+ • ϓϩηε/εϨου: 10000+ • SRE: 10ਓऑ • GoogleAmazonେنͰ͓ͦΒ͘100~1000ഒͷαΠζ -
֊ - ϓϩάϥϜ࣮ߦ୯Ґ - 10લ • Ϩϕϧ1: ϓϩηε/εϨου • Ϩϕϧ2:
αʔό (ෳͷϓϩηεͷू߹ମ) • Ϩϕϧ3: ϩʔϧ (ΫϥελϩʔυόϥϯαԼͷαʔό܈) • Ϩϕϧ4: αʔϏε: (ϩʔϧ·ͨϚΠΫϩαʔϏεͷू߹ମ) • Ϩϕϧ5: ϓϥοτϑΥʔϜ: (ෳͷαʔϏεͷू߹ମ) • Ϩϕϧ6: Σϒ -
֊ - ϓϩάϥϜ࣮ߦ୯Ґ - ࠷ۙ • Ϩϕϧ1: ϓϩηε/εϨου • Ϩϕϧ2:
ίϯςφ • Ϩϕϧ3: αʔό (ෳͷϓϩηεͷू߹ମ) • Ϩϕϧ4: ϩʔϧ (ΫϥελϩʔυόϥϯαԼͷαʔό܈) • Ϩϕϧ5: ϚΠΫϩαʔϏε • Ϩϕϧ6: αʔϏε: (ϩʔϧ·ͨϚΠΫϩαʔϏεͷू߹ମ) • Ϩϕϧ7: ϓϥοτϑΥʔϜ: (ෳͷαʔϏεͷू߹ମ) • Ϩϕϧ8: Σϒ -
ෳࡶ͕ͨ͞Β͢ͷ • γεςϜͷঢ়ଶ༧ଌ͕ࠔʹͳΓɺͦͷ݁ՌɺਓؒʹஅΛ ʑٻΊΔΑ͏ʹͳΔ • ͜Ε͔Β࣮ࢪ͢Δมߋ͕҆શ͔Ͳ͏͔ΛอূͰ͖ͳ͍ɺ·ͨ อূ͢ΔͨΊʹखؒΛ͔͚ͳ͚Ε͍͚ͳ͍ • ֎ཚͷ࠶ݱ͕͍ͨ͠ΊɺҰख͕͔͔ؒΔ •
͍ͭεέʔϧͷݶքʹ͋ͨΔ͔Θ͔Βͳ͍ • ݶքʹ͋ͨͬͯɺͲ͕͜ϘτϧωοΫ͔Θ͔Βͳ͍ • ΤϯδχΞͷܦݧΛجʹٕͨܳ͠Ͱղܾ͍ͯ͠Δ -
ΣϒγεςϜͷ͞·͟·ͳࢦඪ • ݸʑͷϋʔυΣΞϦιʔεࢦඪ • CPUར༻ɺϝϞϦ༻ྔɺωοτϫʔΫଳҬͳͲ • ݸʑͷϛυϧΣΞ/ΞϓϦέʔγϣϯϦιʔεࢦඪ • εϨουɺΫΤϦɺͪߦྻͷ͞ͳͲ •
ܥશମΛදݱ͢Δࢦඪ • αʔϏεશମͷԠ࣌ؒɺΤϥʔϨʔτͳͲ -
؍ଌ݁ՌΛͱʹͨ͠φΠʔϒͳ੍ࣗޚ • Ϋϥυͷ಄ʹΑΓαʔόͷੜͱഇغΛϓϩάϥϜԽ • ࢦඪͷมಈʹԠͯ͡αʔόͷݸੑೳΛࣗಈௐ • ෆௐϓϩηε/αʔόͷ৽ँ • ύϥϝʔλΤϯδχΞͷܦݧΛݩʹΛઃఆ •
ݱࡏͰɺ͜ͷ͋ͨΓ͕ΣϒγεςϜͷݱͰਁಁதͷٕ ज़Ϩϕϧ • ͨͩ͜͠ͷΑ͏ͳφΠʔϒͳ੍ࣗޚʹ͕ى͖͍͢ -
ͪߦྻཧΛར༻੍ͨࣗ͠ޚ • ฏۉԠ࣌ؒͱฏۉϦΫΤετΛ؍ଌ͠ɺͦΕΒΛॲ ཧ͢ΔͨΊͷ߹ܭϓϩηε/αʔόΛׂΓग़ࣗ͠ಈௐ Ͱ͖Δ • ࢦඪΛ؍ଌ͚ͭͮ͠ɺ౸ணͱॲཧ͔ΒඞཁͳϦ ιʔεΛܧଓతʹܭࢉ͠ɺௐ͠ଓ͚Δ #SFOEBO(SFHH l4ZTUFNT1FSGPSNBODF&OUFSQSJTFBOEUIF$MPVEz
1SFOUJDF)BMM Ϧτϧͷ๏ଇ: ҆ఆঢ়ଶʹ͋Δܥʹ͓͍ͯɺγεςϜͷฏۉϦΫΤε τLɺฏۉ౸ணλͱฏۉͪ࣌ؒͷੵʹ͍͠ (L=λW) -
ͪߦྻཧͷ • ͦͦରΣϒγεςϜͷ౸ண͕Θ͔Βͳ͍ • Ծఆ͢Δͷൣғ֎ͷɺ༧ଌͷͰ͖ͳ͍ಥൃతͳ֎ཚʹରԠ͠ ͮΒ͍ • Θ͔Γ͍͢֎ཚɺྫ͑Yahoo!๒ͳͲ • ֎ཚࣄۀػձͱͳΔ͜ͱ͕͋ΔͨΊɺ͔Β֎ΕͨҟৗͰ
ແࢹͰ͖ͳ͍ • ͨͩ͠ɺఆৗঢ়ଶͰͷΛ༻͍ͯɺΩϟύγςΟϓϥϯχϯά ʹར༻͢Δ͜ͱͰ͖Δ -
ϑΟʔυόοΫ੍ޚͷ • ੍ޚରϒϥοΫϘοΫεͰ͋Γɺதෆ໌ͰΑ͍ • SRE͕ΞϓϦέʔγϣϯͷதΛΒͣʹϞχλϦϯά݁ Ռ͚ͩΛΈͯোରԠ͢Δ༷ࢠʹࣅ͍ͯΔ • ͪߦྻཧͰͰ͖ͳ͍μΠφϛΫεΛѻ͑Δ • ݱ࣮ͷΣϒγεςϜͰɺղੳతʹϞσϧΛಋग़͢Δͷ
͍ͨ͠Ίɺύϥϝʔλͷܾఆʹʮ࣮ݧʯʹΑΔܭଌ ͕ඞཁ [1]: େ࡚ ത೭, େنωοτϫʔΫͷ ઃܭɾϞσϧԽɾ੍ޚ, https://www.ieice.org/~netsci/wp-content/uploads/2013/08/NetSci201308_Ohsaki.pdf [1] -
ϑΟʔυόοΫ੍ޚͷಋೖΠϝʔδ • ੍ޚೖྗ: αʔόͷɺαʔόͷϝϞϦྔͳͲ • ੍ޚग़ྗ: ϨεϙϯελΠϜɺΤϥʔͳͲ • ੍ޚग़ྗΛࢹ͠ଓ͚ɺඪ͔Β֎ΕͨΒ੍ޚೖྗΛม ߋ͠ɺݩʹ͢Α͏ͳૢ࡞Λ͢Δ
• ੍ޚೖྗʹରͯ͠ୡؔΛద༻͠ɺ੍ޚग़ྗΛಘΔ • ୡؔͷಉఆνϡʔχϯάɺ࣮γεςϜͰԠΛΈΔ ඞཁ͕͋Δ -
“PRINCIPLES OF CHAOS ENGINEERING”, https://principlesofchaos.org/ Chaos Engineering is the discipline
of experimenting on a distributed system in order to build confidence in the system’s capability to withstand turbulent conditions in production. -
Θ͟ͱҟৗΛى͜͢ൃ • αʔόμϯͳͲΘ͟ͱҟৗΛى͜͢͜ͱͰ࣮ݧ͢Δ • ͔͠͠ɺຊ൪ڥͰҟৗΛىͨ͜͠Γɺݶք·ͰෛՙΛ͔͚Δ ͷෆ҆ • ΫϥυίϯςφͳͲݶΓͳ͘ຊ൪ʹ͍ۙڥΛΦϯσϚϯ υʹߏங͢Δٕज़͕ൃୡ͖͍ͯͯ͠Δ •
ຊ൪ڥͷෛՙΛ࠶ݱ͢Δͷ·͍͕ͩ͠… • ࣮ݧڥΛߴʹ࡞͠ഇغ͢Δ͜ͱͰ҆શʹ࣮ݧΛࣗಈԽ͢Δ -
੍ޚҎ֎ͷ࣮ݧ • ಈ࡞ςετ • ෛՙςετ • Τϥʔςετ • ϋʔυΣΞނোωοτϫʔΫԆͷ૿େͳͲ •
ύϥϝʔλνϡʔχϯά • OSͳͲͷύϥϝʔλ(όοϑΝαΠζͳͲ)νϡʔχϯά • ͜ΕΒʹ͍ͭͯࣗಈԽ͢Δ -
Ծઆԋ៷๏ • (1) ؍ʹج͍ͮͨͷൃݟ (؍ଌ) • (2) Λղܾ͢ΔԾઆͷఏى • (3)
Ծઆ͔Βͷςετ໋ͷԋ៷ • (4) ςετ໋ͷ࣮ݧతݕূ·ͨূ (࣮ݧ) • (5) ςετͷ݁Ռʹجͮ͘Ծઆͷड༰ɺमਖ਼·ͨ์غ ՈܒҰஶʮՊֶֶͷটʯͪ͘·ֶܳจݿ 2015 -
ࣗӡ༻ͷͨΊͷେ͖ͳน • ϋʔυΣΞϦιʔε੍ • ༧Ί༻ҙͨ͠ϦιʔεϓʔϧͰ͚͞ΔҎ্ͷෛՙʹ͑ΒΕ ͳ͍ • Ϋϥυʹ্ݶଘࡏ͢Δ • ֎ཚͷେ͖ͳมԽΛ༧Ͱ͖ͳ͍
• αʔόͷ૿ՃͳͲʹσΟϨΠ͕ଘࡏ͢ΔͨΊɺϑΟʔυόοΫ ͕ؒʹ߹Θͳ͍έʔε͋Γ͑Δ • ΣϒαΠΤϯεͷݚڀΛϑΟʔυϑΥϫʔυ੍ޚʹ͑Δ͔ -
ࣗൃతʹൃల͢ΔαʔϏεͷಛΛଊ͑ɺྫ͑ɺ Web αʔϏε͕ࠓޙൃల͍ͯ͘͠ͷ͔ɺݩؾΛ ͳ͍ͯ͘͘͠ͷ͔ɺͦ͏ͨ͠ঢ়ଶ༧ଌΛࢦ͠ɺ ࣗతͳਓγεςϜͷμΠφϛΫεΛଊ͑Δී วతͳํ๏Λͭ͘ΓɺࣗવՊֶͱͯ͠ͷਓγ εςϜݱͱ͍͏ͷཱ֬Λࢦ͍ͯ͠Δɻ 106 ਓ
ೳɹ31 ר 1 ߸ʢ2016 1 ݄ʣʮΣϒαΠΤϯεݚڀձʢSIG-WebSciʣʯ ൃ -
ࣗӡ༻ • ͜͜·Ͱͷʮࣗʯͷఆٛʮࣗಈम෮ʯʮࣗӡ༻ʯ • ༩͑ΒΕ੍ͨ݅=৴པੑ Λຬͨ͢Α͏ʹࣗಈ࡞͢Δ ͜ͱΛࢦ͍ͯ͠Δ • ৴པੑΛࣗతʹຬͨͤΕɺඅ༻ͷ͏ͪਓ݅අ͋Δఔ ݮͰ͖Δ
• ৴པੑͷ݅ઃఆɺΞʔΩςΫνϟͷܾఆɺιϑτΣΞ ͷޮԽͳͲҎલͱͯ͠ਓͷࣄ -
ωοτϫʔΫͷٕज़֊ΛؚΉ Webͷଘࡏͦͷͷ Λ৽͍͠ʮࣗવݱʯͱͯ͠ଊ͑ɺྫ͑ɺͦͷʮੜ ଶܥʯͱͯ͠ͷߏΛ໌Β͔ʹ͢Δ͜ͱͰɺීวతͳ μΠφϛΫεύλʔϯΛ໌Β͔ʹ͠ɺैདྷͷࣗવՊ ֶɾਓจՊֶͷߟ͑Λൃలͤ͞Δ͜ͱΛࢦ͍ͯ͠ Δɻ 106 ਓ
ೳɹ31 ר 1 ߸ʢ2016 1 ݄ʣʮΣϒαΠΤϯεݚڀձʢSIG-WebSciʣʯ ൃ -
ΣϒγεςϜΞʔΩςΫνϟݚڀձ • ຊʹίϯϐϡʔλωοτϫʔΫͷݚڀձͨ͘͞Μ͋Δ • ΣϒγεςϜͷΞʔΩςΫνϟϦΞϧϫʔϧυͷӡ༻·Ͱؚ Ίͨݚڀձ͕͋·Γͳ͍ • ࠷͍ۙͷใॲཧֶձIOTݚڀձ • ւ֎ͩͱUSENIXͷLISASREconͳͲ
• ͦ͜ͰݚڀձΛ্ཱͪ͛Α͏ͱ͍ͯ͠Δ => 12/23@ژ • ϋογϡλά #wsaݚ