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LLMOpsのパフォーマンスを支える技術と現場で実践した改善
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po3rin
August 15, 2025
Programming
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LLMOpsのパフォーマンスを支える技術と現場で実践した改善
po3rin
August 15, 2025
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Transcript
)JSPNV/BLBNVSBQFSGUPLZP --.0QTͷύϑΥʔϚϯεΛࢧ͑Δٕज़
)JSPNV/BLBNVSB )JSPNV /BLBNVSB QPSJO "*.-0QT&OHJOFFS*OUFSFTUJOH JO*OGPSNBUJPO3FUSJFWBM
-BZFS9ͷ--.0QT
-BZFS9ݱࡏ"*"HFOUΛΰϦΰϦ ਐΊ͍ͯΔ https://layerx.co.jp/news/20250401/
--.0QTॏཁج൫ ϓϩϯϓτόʔδϣϯཧ --.࣮ߦ࣌ͷτϨʔεͳͲͷΦϒβʔόϏϦςΟ Ϟσϧ͝ͱͷਫ਼ݕূ ධՁσʔληοτཧ ࣮ݧͷཧ
-BOHGVTFΠϯϑϥߏ w Ϋϥυ൛ͱηϧϑϗετ൛͕͋Δ w Ϋϥυ൛ຊϦʔδϣϯ͕ͳ͘ɺσʔλཧͷ؍͔ΒηϧϑϗετΛબ w σʔλετΞͱͯ͠1PTUHSF42- 4 $MJDL)PVTF Λ༻͍Δ
$MJDL)PVTFͱ Φʔϓϯιʔεͷੳ͚ 0-"1 ྻࢦσʔλϕʔε -BOHGVTFτϨʔε݁Ռͷ֨ೲઌͱͯ͠ར༻ ॻ͖ࠐ·ΕͨσʔλϒϩοΫετϨʔδͰอ͞ΕΔ "84ͷ߹&'4ͳͲ ࠓճ&'4Λ࠾༻ ෳαʔόʹΑΔΫϥελߏʹରԠ
ΞʔΩςΫνϟ -BOHGVTF "-#ܦ༝ͷ&$4PO'BSHUFB ୯Ұͷ&$44FSWJDFɺ"VUP4DBMJOH༗ޮԽ $MJDL)PVTF /-#ܦ༝ͷ&$4PO'BSHUFB αʔό͝ͱʹݸผͷ&$44FSWJDFΛ࡞ ෦௨৴ϩʔυόϥϯαΛڬ·ͣ௨৴
ͱվળ
ແࣄՔಇʂͱࢥͬͨΒʜ • ຖͷΑ͏ʹλεΫ͕ෆ҆ఆͳঢ়ଶʹ • Langfuse ͕τϨʔεΛهͰ͖ͳ͔ͬͨͱΤϥʔΛు͘ • Max attempts reached
for * record. Dropping record. • େྔͷHTTPλΠϜΞτ • ClickhouseWriter.writeToClickhouse Error: Timeout error.
$16.FNPSZ·ͩ༨༟͕͋Δ
"*ωοτϫʔΫͷͩͱݴ͍ுͬͯΔ ωοτϫʔΫͷͰ͠ΐ͏ʂʂʂ ͔͠͠ɺ֤λΠϜΞτઃఆΛ֬ೝͯ͠ɺͳͦ͞͏ɻ ͦͦT͔͚ͯτϨʔεʹॻ͖ࠐΊͳ͍%#͕͓͔͍͠ɻ
&'4ͷΛൃݟ w 5ISPVHIQVUVUJMJ[BUJPO͕ৗʹߴ͍͜ͱ͕ൃ֮
&'45ISPVHIQVUNPEFʹ͍ͭͯ w 5ISPVHIQVUVUJMJ[BUJPO͕ৗʹߴ͍͜ͱ͕ൃ֮ • EFS ʹεϧʔϓοτϞʔυ͕3छྨ͋Γɺཁ݅ʹ߹ΘͤͯબՄೳ • Elastic: ར༻ঢ়گʹ߹Θͤͯࣗಈతʹεέʔϧ •
Bursting: ετϨʔδ༻ྔʹൺྫͯ͠εϧʔϓοτ૿͑Δ • Provisioned: ࢦఆͨ͠εϧʔϓοτྔΛݻఆͰ֬อ • ֘ͷ EFS Bursting ʹͳ͍ͬͯͨ • ͍࢝Ί͔ͨΓͰ༻ྔ 3~4GiB ΄Ͳ • ετϨʔδ 1GiB ͋ͨΓ 50KiBps ͷεϧʔϓοτ → 200KiB/s ΄Ͳ͔͠ͳ͍
&'45ISPVHIQVUNPEFͷมߋ • Bursting → Elastic มߋͯ͠ঢ়گ͕վળͨ͠ • AWS ίϯιʔϧͷॳظ Elastic
• Terraformaws provider ͷॳظ Bursting ͳ͜ͱΛݟམͱ͍ͯͨ͠ (ຌϛε)
$MJDL)PVTF%FFQ%JWF
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ w τϨʔεͷॻ͖ࠐΈͰΤϥʔ͕ൃੜ͍ͯͨͨ͠ΊɺͦͷลͷڍಈΛௐࠪ͠·ͨ͠ɻ
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ • InsertΛड͚ΔͱɺPartͱ͍͏୯ҐͰ σʔλΛ֨ೲ͢Δɻ • ҰؾʹInsert͢ΔͷͰͳ͘ɺҰ Bufferʹ֨ೲ͢Δ͜ͱͰɺલͬͯ σʔλΛιʔτͯ֨͠ೲ͢Δɻ
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ • PartΛ࡞ΔࡍʹσʔλΛιʔτ͠ɺΧϥ Ϝʹ͚ͯΠϯσοΫεใͱڞʹPartͱ ͯ͠อଘ • ιʔτ͢Δ͜ͱʹΑΓɺΠϯσοΫεใ ͔ΒͲͷϑΝΠϧʹඞཁͳσʔλ͕֨ೲ͞ Ε͍ͯΔ͔͕ܭࢉ͘͢͠ͳ͍ͬͯΔɻ
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ Compress columnsͰɺgranuleͱ͍͏୯ҐʹσʔλΛ͚ɺprimary.idxͱ͍͏ϑΝΠϧʹ Ͳͷൣғͷσʔλ͕͋Δ͔Λอଘ͓ͯ͘͜͠ͱͰɺߴͳσʔλΞΫηεΛ࣮ݱ͍ͯ͠Δɻ
MarkΧϥϜ͝ͱʹ࡞ΒΕอଘͨ͠granuleͷॴΛḷΓ͘͢͢Δ $MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ ϨϓϦέʔγϣϯ࣌ʹ࣍ͷσʔλΛૹ৴͢Δඞཁ͕͋Γ·͢ɻ w ΧϥϜσʔλϑΝΠϧ DPMVNO@OBNFCJOܗࣜͷѹॖ͞Εͨσʔλ w ΠϯσοΫεϑΝΠϧ QSJNBSZJEYͳͲͷϓϥΠϚϦΩʔΠϯσοΫε w
ϚʔΫϑΝΠϧ DPMVNO@OBNFNSLͳͲͷߦҐஔϚʔΧʔ w ϝλσʔλϑΝΠϧ DIFDLTVNTUYU DPMVNOTUYUͳͲͷύʔπهड़ใ
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ 1BSUTͷϚʔδఆظతʹൃੜ͠·͢ɻ ϑΝΠϧγεςϜ͜ΕΛఆͯ͠ε ϧʔϓοτΛ֬อ͢Δඞཁ͕͋ͬͨɻ
$MJDL)PVTFͷύϑΥʔϚϯεΛࢧ͑Δٕज़ • ClickHouseͰϨϓϦέʔγϣϯɺϚʔδͱ͍ͬͨඇಉظॲཧ͕ൃੜ͠·͢ɻ • ϨϓϦέʔγϣϯ࣌ʹɺ͜ͷPartsΛHTTPܦ༝ͰϨϓϦέʔγϣϯ͢Δͨ ΊɺωοτϫʔΫεϧʔϓοτؾΛ͚ͭΔඞཁ͕͋Δɻ • ࠓճͷ߹ωοτϫʔΫͷλΠϜΞτΑΓɺϑΝΠϧγεςϜͷλΠϜ Ξτ͕͘ઃఆ͞Ε͍ͯͨͷ͕ࠜຊͷʹؾ͖ͮʹ͍͘ݪҼͰͨ͠ɻ
·ͱΊ
"*ʹฉ͚ͩ͘ͰΘ͔Βͳ͍ࠜຊݪҼ༨༟Ͱଘࡏ͢Δ ύϑΥʔϚϯεͷݟɺΠϯϑϥࣝɺΞϧΰϦζϜͷࣝҾ͖ଓ͖ඞ ཁɻֶΜͰ͍͖·͠ΐ͏ʂʂʂʂ
"*࣌Ͱ%FFQ%JWF͢Δ͜ͱՁ ཪଆͰಈ͍͍ͯΔॲཧΛ۩ମతʹΔ͜ͱͰɺύϑΥʔϚϯεɺ҆ఆੑΛ্͛Δͱ ͖ʹͲ͜ʹΛ͚ͭΕྑ͍ͷ͔ͷௐ͕ࠪඇৗʹ͘͢͠ͳͬͨɻ ϩάϝτϦΫε͚ͩΛݟͯରԠΛ૾͢ΔͷͰͳ͘ɺ࣮ࡍʹཪଆΛཧղ͢Δ͜ ͱͰɺ֬৴Λ࣋ͬͨࠜຊղܾ͕Ͱ͖ΔΑ͏ʹͳͬͨɻ
ϒϩάʹͯ͠·͢ʂʂ tech.layerx.co.jp/entry/deep-dive-clickhouse
)JSPNV/BLBNVSBQFSGUPLZP --.0QTͷύϑΥʔϚϯεΛࢧ͑Δٕज़ͱ ݱͰ࣮ફͨ͠վળ