とあるSREの博士「過程」 / A Certain SRE’s Ph.D. Journey

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ͱ͋ΔSREͷത࢜ʮաఔʯ SRE NEXT 2025 IN TOKYO @yuuk1t / Yuuki Tsubouchi さくらインターネット株式会社 A Certain SRE ’ s Ph.D. Journey 2025/07/11 2025/07/11

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ݚڀ֓ཁ: Scaling Telemetry Workloads in Cloud Applications എܠͱ໨త ՝୊ ߩݙ 1. Ϋϥ΢υΞϓϦέʔγϣϯͷςϨϝτϦʔ 2. ςϨϝτϦʔϫʔΫϩʔυͷ૿େ 3. ςϨϝτϦʔϫʔΫϩʔυεέʔϦϯά 1. ܭଌɿܭଌॲཧΦʔόʔϔουͷ૿େ 2. ετϨʔδɿऔΓࠐΈσʔλྔͷ૿େͱ௕ظอଘ 3. ϚΠχϯάɿނোಛఆͷਫ਼౓ɾ࣮ߦޮ཰ͷ௿Լ 1. ୹໋ͳωοτϫʔΫ௨৴͕૿େ͢ΔͱɺैདྷͷܭଌॲཧͰ͸ɺܭଌݩͷOS Χʔωϧ͔Βͷసૹॲཧίετ͕ߴ͍ɻ ϝτϦΫε਺ͷ૿େʹରͯ͠ɺऔΓࠐΈॲཧޮ཰ͷ޲্ͱ̍೥Ҏ্ͷ௕ ظอଘΛཱ྆͢Δ͜ͱ͕೉͍͠ɻ ϝτϦΫε਺ͷ૿େʹରͯ͠ɺطଘͷಛ௃࡟ݮΛద༻ͨ͠ͱͯ͠΋ɺγες Ϝશମͷো֐Λଊ͑ΒΕͣɺِཅੑɾِӄੑ͕૿Ճ͢Δɻ ܭଌॲཧͷޮ཰Խ [1] Y. Tsubouchi, M. Furukawa, R. Matsumoto, Low Overhead TCP/UDP Socket-based Tracing for Discovering Network Services Dependencies, Journal of Information Processing (JIP), Vol.30, pp.260-268, March 2022. [2] ௶಺༎थ, ࿬ࡔேਓ, ᖛా݈, দ໦խ޾, খྛོߒ, Ѩ෦ത, দຊ ྄հ, HeteroTSDB: ҟछ෼ࢄKVSؒͷࣗಈ֊૚ԽʹΑΔߴੑೳͳ ࣌ܥྻσʔλϕʔε, ৘ใॲཧֶձ࿦จࢽ, Vol.62, No.3, pp.818- 828, 2021೥3݄. [3] Y. Tsubouchi and H. Tsuruta, MetricSifter: Feature Reduction of Multivariate Time Series Data for Ef fi cient Fault Localization in Cloud Applications, IEEE Access, Vol. 12, pp. 37398-37417, March 2024. 2. औΓࠐΈॲཧͱ௕ظอଘͷޮ཰ͷ޲্ 3. ނোಛఆͷલॲཧͰো֐ʹؔ࿈͠ͳ͍มྔͷ࡟ݮ OSΧʔωϧ಺ͰTCP/UDP௨৴ΠϕϯτΛूଋ͢Δ͜ͱʹΑΔసૹॲཧޮ཰ͷ޲্ ҟछKVSΛ֊૚Խ͠ɺΠϯσοΫεࢀরޮ཰ͱ҆ՁͳετϨʔδ΁ͷ֨ೲΛ࣮ݱɻ ো֐ൃੜ࣌ʹ֤࣌ܥྻͷมԽ఺͕࣌ؒूத͢Δ͜ͱΛߟྀͨ͠ಛ௃࡟ݮʹΑΓɺ ނোಛఆਫ਼౓ͱ࣌ؒΛվળɻ ֤૚ͷϫʔΫϩʔυ૿େ࣌ͷ՝୊ղܾ ςϨϝτϦʔϫʔΫϩʔυ૿େͷ՝୊ ޮ཰తʹεέʔϧՄೳͳςϨϝτϦʔγ εςϜͷ࣮ݱʹ޲͚ͯ ΞϓϦέʔγϣϯ͕ෳࡶԽ͓ͯ͠ΓɺςϨϝτϦʔʹΑΔӡ༻ ؅ཧ͕ඞਢͰ͋Δɻ [1] [2] [3] ςϨϝτϦʔγεςϜͰɺܭଌɾετϨʔδɾϚΠχϯάͷ֤૚ ͰϫʔΫϩʔυ͕૿େ͍ͯ͠Δɻ ܭࢉػࢿݯͷফඅ૿େͳͲͷ໰୊ʹରͯ͠ޮ཰Α͘εέʔϧͤ͞Δ ͜ͱΛ໨తͱ͢Δɻͨͩ͠ɺӡ༻ෳࡶੑΛߟྀ͢Δ͜ͱɻ 79

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