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全文検索エンジン「Elasticsearch」の概要とprismatixでの活用事例
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nakamura-tk
July 31, 2022
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1.4k
全文検索エンジン「Elasticsearch」の概要とprismatixでの活用事例
nakamura-tk
July 31, 2022
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Transcript
QSJTNBUJYࣄۀ෦தଜོߒ શจݕࡧΤϯδϯʮ&MBTUJDTFBSDIʯͷ֓ཁͱ QSJTNBUJYͰͷ׆༻ࣄྫ
ࣗݾհ தଜɹོߒ ΫϥεϝιουɹQSJTNBUJYࣄۀ෦ ݕࡧαʔϏε։ൃ୲ ओͳۀ༰ ɾ&MBTUJDTFBSDI
ɾαʔόʔαΠυ +BWB
ຊηογϣϯͷ֓ཁ
αϚϦʔ w &MBTUJDTFBSDIʹ͍ͭͯ w &MBTUJDTFBSDIͱ w &MBTUJDTFBSDIͷಛɾϢʔεέʔε w શจݕࡧʹ͍ͭͯ
w "NB[PO0QFO4FBSDI4FSWJDFʹ͍ͭͯ w QSJTNBUJYͰͷ׆༻ࣄྫ
ఆࢹௌऀ w&MBTUJDTFBSDIʹڵຯ͕͋Δํ wશจݕࡧʹ͍ͭͯΓ͍ͨํ w&MBTUJDTFBSDIΛ༻͍ͨαʔϏεఏڙʹڵຯ͕͋Δํ
Elasticsearch ͱ
&MBTUJDTFBSDIͱ &MBTUJD͕ࣾఏڙ͍ͯ͠Δ&MBTUJD4UBDL ʹؚ·ΕΔશจݕࡧٴͼੳΤϯδϯͰɺ༷ʑ ͳσʔλΛϦΞϧλΠϜʹݕࡧɾੳɾՄࢹԽ ͢Δ͜ͱ͕ՄೳͰ͢ɻ &MBTUJD4UBDLʹؚ·ΕΔϓϩμΫτ • Elasticsearch ɿ
৺ଁ෦ͱͳΔJSONϕʔεͷݕࡧ/ੳΤϯδϯ • Kibana : ݕࡧɺՄࢹԽ༻ͷπʔϧ • Beats ɿ ΞϓϦΠϯϑϥͷ౷ܭใͷσʔλऩूπʔϧ • Logstash ɿ σʔλऩूύΠϓϥΠϯ
Elasticsearch ͷಛ
&MBTUJDTFBSDIͷಛ w εέʔϥϏϦςΟ w ࢄݕࡧ w εΩʔϚϨε w ։ൃऀϑϨϯυϦʔ
w શจݕࡧ
εέʔϥϏϦςΟᶃ &MBTUJDTFBSDIҎ্ͷϊʔυͰΫϥελʔΛߏ ͠ɺͭͷ·ͱ·Γͱͯ͠σʔλΛॲཧ͠·͢ɻ ϊʔυ&MBTUJDTFBSDIͷ Πϯελϯε
εέʔϥϏϦςΟᶄ .BTUFSϊʔυ %BUBϊʔυ *OHFTUϊʔυ ϊʔυʹ༷ʑͳׂΛׂΓͯΔ͜ͱ͕ՄೳͰ͢ɻׂ͝ͱʹϊʔ υΛௐ͢Δ͜ͱͰਫฏํͷεέʔϧ͕Մೳ ར༻ঢ়گʹԠͯ͡ εέʔϧ͕Մೳ γϯϓϧͳϊʔυ
ߏ
ࢄݕࡧ σʔλΛࢄͯ͠อ࣋͢Δ͜ͱͰɺେྔσʔλͰߴ ͳݕࡧ͕ՄೳɻϊʔυؒͰϨϓϦΧΛอ͍࣋ͯ͠Δͷ Ͱɺো࣌ͷ෮چૣ͍ɻ
εΩʔϚϨε ࣄલͷεΩʔϚఆٛແ͠ʹσʔλΛొՄೳͰ͢ɻ ొ͞Εͨσʔλ༰Λੳ͠ɺ&MBTUJDTFBSDI͕ࣗಈ Ͱఆٛ͠·͢ɻ
։ൃऀϑϨϯυϦʔᶃ w 3&45"1*Ͱ֤छૢ࡞͕Մೳ w $36% w Ϋϥελʔɾϊʔυͷઃఆ w $MJFOU༷ʑͳݴޠͰఏڙ
w +BWB w 1)1 w 1ZUIPO w 3VCZ w FUD
։ൃऀϑϨϯυϦʔᶄ %PDLFSΠϝʔδ͕ఏڙ͞Ε͍ͯͯ؆୯ʹར༻Մೳɻ ϩʔΧϧͰͷ։ൃݕূ%PDLFS্Ͱߦ͑·͢ɻ
։ൃऀϑϨϯυϦʔᶅ ݕࡧɾՄࢹԽ༻πʔϧͷ,JCBOBʹɺ&MBTUJDTFBSDIͷΤϯυϙΠϯτʹ؆୯ʹϦ ΫΤετՄೳͳ%FW5PPMT͕ఏڙ͞Ε͍ͯͯϒϥβ͔ΒΞΫηεՄೳ
શจݕࡧᶃ ෳͷจॻʢϑΝΠϧʣ͔ΒಛఆͷจࣈྻΛݕࡧ͢Δ͜ͱɻ ʮϑΝΠϧ໊ݕࡧʯʮ୯ҰϑΝΠϧͷจࣈྻݕࡧʯͱҟͳΓɺ ʮෳจॻʹ·͕ͨͬͯɺจॻʹؚ·ΕΔશจΛରͱͨ͠ݕࡧʯ ࢀߟ: https://ja.wikipedia.org/wiki/%E5%85%A8%E6%96%87%E6%A4%9C%E7%B4%A2
શจݕࡧᶄ ߴͳશจݕࡧΛ࣮ݱ͢ΔͨΊɺ&MBTUJDTFBSDIͰ จॻొ࣌ʹసஔΠϯσοΫεΛ࡞͠·͢ɻ
શจݕࡧᶅ ొ͢ΔจॻΛݴޠॲཧʹֻ͚·͢ɻ ݴޠॲཧͰෆཁͳจࣈͷআڈখจࣈʹ౷Ұͨ͠Γ͠ɺɹ ୯ޠຖʹ۠Γ·͢ɻ
શจݕࡧᶆ Ͳͷ୯ޠ͕Ͳͷจॻʹଘࡏ͢Δ͔ͷ ࡧҾ సஔΠϯσοΫε Λ࡞͠·͢ɻ
શจݕࡧᶇ ݕࡧ࣌ʹݕࡧϫʔυΛݴޠॲཧʹֻ͚ɺసஔΠϯσοΫε͔Β Ұக͢ΔจॻΛݟ͚ͭ·͢ɻ ୯ޠ୯ҐͰΠϯσοΫεΛ࡞͢ΔͨΊɺߴͳશจݕࡧ͕Մೳ
ຊޠܗଶૉղੳϓϥάΠϯ
ຊޠͷݴޠॲཧᶃ ӳޠεϖʔε۠ΓͰ୯ޠΛநग़ͨ͠ΓݴޠॲཧΛߦ ͑·͕͢ɺຊޠͰҟͳΔରԠ͕ඞཁͰ͢ɻ 5IJTJTBQFOˠ5IJTJTBQFO ͜ΕϖϯͰ͢ˠʁʁʁ
ຊޠͷݴޠॲཧᶄ ຊޠ༻ͷݴޠղੳϓϥάΠϯ͕ఏڙ͞Εͯ·͢ɻ εϖʔε۠ΓͰͳ͘ɺࣙॻΛར༻ͨ͠ํ๏ʹͳΓ·͢ɻ ར༻ํ๏&MBTUJDTFBSDIͷσΟϨΫτϦͰɺίϚϯυ࣮ߦ ͢Δ͜ͱͰಋೖՄೳͰ͢ɻ $sudo bin/elasticsearch-plugin install analysis-kuromoji
ࢀߟIUUQTXXXFMBTUJDDPHVJEFFOFMBTUJDTFBSDIQMVHJOTDVSSFOUBOBMZTJTLVSPNPKJIUNM
&MBTUJDTFBSDIͷϢʔεέʔε • WebαΠτͷݕࡧػೳ • ϩάΠϕϯτσʔλͷอଘɾੳ • ػցֶशͰϦΞϧλΠϜʹϞσϧΛ࡞ • ηΩϡϦςΟੳ
• ཧใΛར༻ͯ͠ͷۭؒݕࡧ • Ҩࢠσʔλͷੳ
Amazon OpenSearch Service
"NB[PO0QFO4FBSDI4FSWJDF w&MBTUJDTFBSDI͔ΒϑΥʔΫ wϚωʔδυαʔϏε wσϓϩΠ wཧ wෳͷΫΤϦݴޠαϙʔτ wΠϕϯτϞχλϦϯάɾΞϥʔτ
"NB[PO0QFO4FBSDI4FSWJDF Ϛωδϝϯτίϯιʔϧ͔Β؆୯ʹ࡞͕ՄೳͰɺ֤छઃ ఆมߋϞχλϦϯάػೳఏڙ͞Ε͍ͯ·͢ɻ
prismatix ʹ͍ͭͯ
QSJTNBUJYͱ w &$$3.ΦϜχνϟωϧ"1*ϓϥοτϑΥʔϜ w ϚΠΫϩαʔϏεΫϥυωΠςΟϒ
QSJTNBUJYͱ wൢചνϟωϧͱόοΫΦϑΟεγεςϜͷϋϒ ͱͯ͠Քಇ w&$$3.ʹඞཁͳػೳ܈ΛબతʹಋೖՄೳ wϏδωεͷنαʔϏεɾϑΣʔζʹ߹Θ ͤͯ࠷దͳߏͰར༻Մೳ
Elasticsearchͷ׆༻ํ๏
Ϧιʔε QSJTNBUJYͷ"1*ϦιʔεࢦΞʔΩςΫνϟ 30" ʹج͍ͮͯઃ ܭ͍ͯ͠·͢ɻ Ϧιʔεͱ"1*Λ௨ͯ͡ૢ࡞ՄೳͳॏཁੑΛ࣋ͬͨσʔλͰɺ 30"ϦιʔεΛத৺ʹߟ͑ΔΞʔΩςΫνϟͰ͢ɻ w αʔϏε
w ϦιʔεࡏݿϦιʔε w ձһαʔϏε w ձһϦιʔε͓ؾʹೖΓϦιʔε
׆༻ํ๏ᶃ αΠτΛߏங͢Δࡍɺඥͮ͘େྔͷϦιʔεΛߜΓࠐΈͭ ͭɺར༻͍߲͚ͨͩ͠Λऔಘ͢Δͷେม w ໊ɾઆ໌จͰશจݕࡧ͍ͨ͠ w ϨϏϡʔ͕ཉ͍͠ w ࡏݿ͕ͳ͍ඇදࣔʹ͍ͨ͠
w ݕࡧʹҰக͢Δ w ΧςΰϦҰཡ w FUD
׆༻ํ๏ᶄ QSJTNBUJYͰ֤Ϧιʔεૢ࡞࣌ʹ,JOFTJT%BUB4USFBNΛ ར༻ͯ͠ߴʹ&MBTUJDTFBSDIू
׆༻ํ๏ᶅ &MBTUJDTFBSDIͷݕࡧϦΫΤετΛߦ͢ΔݕࡧαʔϏε Λఏڙ͠ɺूͨ͠ෳͷϦιʔεΛԣஅͯ͠ݕࡧ͕Մೳ ݕࡧαʔϏε "1*ϦΫΤετ ݕࡧϦΫΤετ Ϩεϙϯε Ϩεϙϯε
׆༻ํ๏ᶆ Ϧιʔεຖʹ༷ʑͳ"1*Λఏڙ͓ͯ͠Γɺར༻༻్ʹԠͨ͡ ϦΫΤετύϥϝʔλΛ༻ҙ ݕࡧαʔϏε ݕࡧϖʔδ ళฮϖʔδ ϖʔδ ձһϖʔδ FUD
FUD "1*ϦΫΤετ Ϩεϙϯε
͍͞͝ʹ
͍͞͝ʹ w &MBTUJDTFBSDIΛར༻͢Δ͜ͱͰߴͳશจݕࡧ͕Մೳ w %PDLFSΠϝʔδ͕͞Ε͍ͯΔͷͰڵຯ͋Δํ৮ͬͯΈͯ ͍ͩ͘͞ w IUUQTXXXEPDLFSFMBTUJDDPSFMBTUJDTFBSDI w
&MBTUJDTFBSDIͷৄ͍͠ར༻ํ๏ʹ͍ͭͯެࣜαΠτฐࣾ ϒϩάΛ֬͝ೝ͍ͩ͘͞ w IUUQTXXXFMBTUJDDPHVJEFJOEFYIUNM w IUUQTEFWDMBTTNFUIPEKQUBHTFMBTUJDTFBSDI
None