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DB外の副作用をトランザクションから分離しよう / Isolate out-of-DB sid...
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Masato Ohba
April 20, 2023
Programming
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DB外の副作用をトランザクションから分離しよう / Isolate out-of-DB side effects from transactions
gotanda.rb#52@オンライン "DB外の副作用をトランザクションから分離しよう"
Masato Ohba
April 20, 2023
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Transcript
%#֎ͷ෭࡞༻Λ τϥϯβΫγϣϯ͔Β͠Α͏ !HPUBOEBSC PICBSZF
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จσʔλͷ࡞ ૹσʔλͷ࡞ Λ·ͱΊͯߦ͏
τϥϯβΫγϣϯͷ"UPNJDJUZ τϥϯβΫγϣϯʹσʔλϕʔε ͕อޢͰ͖ͳ͍෭࡞༻ΛಥͬࠐΉ ϒϩοΫͷॲཧ͕શ࣮ͯߦ͞ΕΔ ͔ɺ͋Δ͍·࣮ͬͨ͘ߦ͞Εͳ͍ ͔Λอূ͢Δ͜ͱ͕Ͱ͖ͳ͘ͳΔ "UPNJDJUZͷյ͠ํ จྃϝʔϧ ૹ৴ΛՃ
ϝʔϧωοτϫʔΫΛܦ༝ͯ͠ૹ৴͞ΕΔͷͱ͢Δ
ͳͥյΕΔʁ ʮจσʔλ࡞ʯ ʮૹσʔλ࡞ʯ ʮϝʔϧૹ৴ʯ ͕ͯ͢Ұ؏ͯ͠ޭ͢Ε Α͍ ΫϥΠΞϯτ αʔό ϝʔϧαʔό
ޭ
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ࢄτϥϯβΫγϣϯΛؤுΔɺͱ͍͏ಓ͋Δ͕ଟ͘ͷέʔεͰίετ͕ߴͭ͘͘ͱࢥΘΕΔ ͜ͷଞʹτϥϯβΫγϣϯͷ࣌ؒԽɺϩοΫղ์ͪͳͲͷى͖Δ
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ఆϑοΫΛࠐΊΑ͍ τϥϯβΫγϣϯ͔Ͳ͏͔ಈతʹఆ͢Δํ๏
ݕग़ʢࣗ࡞Ҋʣ ࠷ॳʹࢼΈͨࣗ࡞ྫ τϥϯβΫγϣϯதʹݺͼग़͢ͱ raiseͯ͘͠ΕΔ
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͜ΕΒΛΈ߹Θͤͯ ίʔυϕʔε্Ͱͯ͢ͷ෭࡞༻Λ %#τϥϯβΫγϣϯ͔Βྃ✅
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ͦͷ্ͰίʔυϦʔσΟϯά͢Δͱ৽ͨͳൃݟ͕ੜ·Εͯ͞Βʹ໘ന͍ 3BJMTͷJOTUSVNFOUBUJPODBMMCBDLػߏʹ͍ͭͯΔ͜ͱ͕Ͱ͖ͨ
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