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CloudでのMySQL
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rm-rf-slant
August 21, 2014
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CloudでのMySQL
rm-rf-slant
August 21, 2014
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Transcript
ୈ13ষɹΫϥυͰͷ MySQL
Agenda 4 ΫϥυͷϝϦοτɺσϝϦοτ 4 Ϋϥυͷ໎৴ 4 ܦࡁੑ 4 4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷMySQL ͷύϑΥʔϚϯε
4 MySQL DBaaS 4 ·ͱΊ
Agenda 4 ΫϥυͷϝϦοτɺσϝϦοτ 4 Ϋϥυͷ໎৴ 4 ܦࡁੑ 4 4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷMySQL ͷύϑΥʔϚϯε
4 MySQL DBaaS 4 ·ͱΊ
ΫϥυͷϝϦοτɺσϝϦοτ
ϝϦοτ 4 HWͷ֎෦ௐୡɺཧͷඞཁ͕Ұແ͠ 4 ӡ༻ίετݮ(ैྔ੍) 4 ιϦϡʔγϣϯͷ͕͍ͷͰɺࢢՁ্͕ Γɺ͕࣌ؒܦͭʹͭΕྑ͍ͷΛ͞ΒʹίετͰར༻Ͱ ͖ΔΑ͏ʹͳΔɻ 4
ϓϩϏδϣχϯά͕؆୯(ෆཁʹͳͬͨΒɺϘλϯҰͭͰղ ܾ)
σϝϦοτ 4 ΩϟύγςΟϓϥϯχϯά͕͍͠ (Ϧιʔεڞ༗͞ΕΔͷͰɺऔಘͨ͠Ϧιʔε͕࣮ࡍʹࢧ ͍ͬͯΔΛա͢Δ͜ͱ͕͋Δ) 4 ΩϟύγςΟՄ༹ੑʹؔ͢Δอূͳ͍ 4 τϥϒϧγϡʔςΟϯά͕͍͠ (࣮ࡍͷϋʔυͷϦιʔεΛܭଌ͢Δ͜ͱ͕Ͱ͖ͳ͍)
Agenda 4 ΫϥυͷϝϦοτɺσϝϦοτ 4 Ϋϥυͷ໎৴ 4 ܦࡁੑ 4 4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷMySQL ͷύϑΥʔϚϯε
4 MySQL DBaaS 4 ·ͱΊ
Ϋϥυͷ໎৴
ຊ࣭తʹεέʔϥϏϦςΟ͕ߴ͍ 4 ͜ΕɺCDP(Cloud Design Pattern)ʹΑΔɻ Ϋϥυ͔ͩΒͱ͍ͬͯɺԿ͠ͳͯ͘εέʔϥϒϧͳ Θ͚͕ͳ͍͠ɺϦιʔεΛબͯࣗ͠ಈతʹεέʔϥϒϧ ʹͳΔΘ͚Ͱͳ͍ɻ ڧ͍ͯݴ͑ɺϦιʔεΛඞཁʹԠͯ͡औಘͰ͖Δ͜ͱ εέʔϥϏϦςΟͷ̍ͭͱݴͬͯྑ͍ʢ͋͘·Ͱ̍ͭͷ
ଆ໘ʣ
ΞοϓλΠϜΛࣗಈతʹվળ͢Δɺ͋Δ ͍ͦΕΛอূ͢Δ 4 ࣮ɺઐ༻ͷΠϯϑϥετϥΫνϟΑΓμϯͨ͠Γػ ೳఀࢭͨ͠Γ͢ΔՄೳੑ͕ߴ͍ɻ
ʮʙΛఏڙ͢ΔͷΫϥυ͚ͩʯͱ͍ ͏ᨳ͍จ۟ 4 ࣮ࡍɺΫϥυͷ༗ແʹؔͳ͘खʹೖΕΔ͜ͱ͕Ͱ͖Δ ʢӕ͖ͭʣ
Ϋϥυಛޮༀ 4 ͍ɺҧ͍·͢w (࣮ͦͦࡍʹݴ͍ͬͯΔਓΛݟͨࣄ͕ແ͍)
Agenda 4 ΫϥυͷϝϦοτɺσϝϦοτ 4 Ϋϥυͷ໎৴ 4 ܦࡁੑ 4 4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷMySQL ͷύϑΥʔϚϯε
4 MySQL DBaaS 4 ·ͱΊ
ܦࡁੑ
ͳΜ͔͗ͬ͠Γॻ͍ͯ͋Γ·͕͢ɺ ͬ͘͟Γ·ͱΊΔͱ...
4 ΫϥυͷԸܙΛड͚͍ͯΔදྫɺήʔϜΞϓϦʹܞ ΘΔ։ൃऀɺϞόΠϧΞϓϦ։ൃऀ 4 ΞϓϦέʔγϣϯΛɺ͍ϥΠϑαΠΫϧͰߏங͠ɺ͙͢ ϦϦʔε͍ͨ͠߹࠷ద 4 εέʔϦϯάͷنͱ͞ʹࢿຊ͕ରԠ͖͠Εͳ͘ͳΔϦ εΫΛճආͰ͖Δ 4
ΫϥυϗεςΟϯάɺظతʹݟΔͱɺߴͭ͘͘͜ͱ ͕͋Δ
Agenda 4 ΫϥυͷϝϦοτɺσϝϦοτ 4 Ϋϥυͷ໎৴ 4 ܦࡁੑ 4 4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷMySQL ͷύϑΥʔϚϯε
4 MySQL DBaaS 4 ·ͱΊ
4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷ MySQLͷύϑΥʔϚϯε
MySQLΛಈ࡞ͤ͞ΔͨΊʹඞཁͳ جຊϦιʔε,,,
CPU ϝϞϦ I/O ωοτϫʔΫ
Ϋϥυͱཧαʔόͷൺֱ
CPU 4 CPUͷ͕গͳ͘ɺͰ͋Δ(࠷େͰɺίΞ8ͭ) 4 ίϞσΟςΟαʔόʹेݸͷCPUίΞ͕ࡌ͞Ε͍ͯ Δ
ϝϞϦ 4 Ϧιʔεྔଟ͍͕ɺ࠷େϝϞϦαΠζ͕ݶΒΕ͍ͯΔ (68.4GB) (ίϞςΟςΟͩͱ512GB ~ 1TB) ※ɹࠓɺi2r3͕͋Δ͔Βͬͱଟ͍(AWS)
I/O 4 εϧʔϓοτɺԆɺҰ؏ੑͷ໘ͰI/OύϑΥʔϚϯε͕ݶ ΒΕ͍ͯΔ 4 ༧ଌෆೳͳ͜ͱ͕͋Δ (ཧαʔόɺԿഒߴ)
ωοτϫʔΫ 4 ڞ༗ϦιʔεͳͷͰɺύϑΥʔϚϯεมԽ͍͑͢͠ 4 ௨ৗɺదͳύϑΥʔϚϯεΛҡ࣋͢Δ
͋Εʁ
̐ͭͷ͏ͪɺ̏ͭྼ͍ͬͯΔ...
ΫϥυͷجຊϦιʔε 4 CPUɺϝϞϦɺI/Oͷ̏ͭͷϦιʔεɺ͋Δఔ੍ݶ͕͋ ΔͬΆ͍ 4 શମతʹݟͯɺϦιʔεϋʔυΣΞʹൺΔͱɺߴੑ ೳͰͳ͍ ※ɹAWSͷΈΛൺֱ͍ͯ͠ΔͷͰɺ͋·ΓࢀߟʹͳΒͳ͍ɻ͔ ͳΓιϦϡʔγϣϯมΘ͍ͬͯΔͷͰҰ֓ʹྼ͍ͬͯΔͱ ݴ͍͍(ϕΞϝλϧͱ͔͋Δ͠ɺࠃϕϯμʔؤுͬͯΔ)
͜ΕΒΛ౿·্͑ͨͰɺύϑΥʔϚϯεݕ ূ
ྫ͑... Q. ΫϥυͰϗεςΟϯά͍ͯ͠ΔMySQLͱɺಉ͡Α͏ͳα ΠζͷཧϋʔυΣΞΛ༻ͨ͠߹Λൺֱ͢Δͱɺύ ϑΥʔϚϯε݁ՌͲ͏ͳΔʁ
εϖοΫ 4 ཧαʔό 8جͷCPUίΞɺ16GBͷϝϞϦɺதఔͷRAIDΞϨΠΛ ࡌ ɹ 4 EC2(AWS) 8جͷEC2ίϯϐϡʔτϢχοτɺ15GBͷϝϞϦɺ͍ͭ͘ ͔ͷEBS(Elastic
Block Store)Λࡌ
ྫ͑... Q. ΫϥυͰϗεςΟϯά͍ͯ͠ΔMySQLͱɺಉ͡Α͏ͳα ΠζͷཧϋʔυΣΞΛ༻ͨ͠߹Λൺֱ͢Δͱɺύ ϑΥʔϚϯε݁ՌͲ͏ͳΔʁ ɹ A. ಉఔͷύϑΥʔϚϯε͕ಘΒΕΔؾ͕͢Δ...
ݱ࣮ 4 ಉ͡͞Ͱ࣮ߦͰ͖ΔͱݶΒͳ͍ 4 EC2ΠϯελϯεͷύϑΥʔϚϯεɺཧαʔόͱൺ Δͱ҆ఆ͍ͯ͠ͳ͍ 4 ଞͷΠϯελϯεͱϦιʔεΛڞ༗͍ͯ͠Δ
ͭ·Γɺมಈతͳੑ࣭
େ
Կ͕ʁʢ1/2ʣ MySQLɺಛʹInnoDBɺύϑΥʔϚϯεͷΒ͖ͭ(I/Oύ ϑΥʔϚϯε͕มԽ͠қ͍)Λ·ͳ͍ɻI/Oॲཧɺαʔό ͰmutexϩοΫ(ഉଞ੍ޚػߏ)Λऔಘ͢ΔՄೳੑ͕͋Δɻ͜Ε ͕Ҿ͘ͱɺौ͕ى͖ͯଟ͘ͷϓϩηεཱ͕ͪԟੜ͠ɺΫΤ Ϧͷ࣮ߦʹෆࣗવͳ΄Ͳ͕͔͔࣌ؒΔΑ͏ʹͳΔɻ (ThreadsrunningɺThreadsconnectedͱ͍ͬͨঢ়ଶมͷ ͕Ͷ্͕Δ)
Կ͕ʁʢ2/2ʣ ͪߦྻͷ͞ʹӨڹ͢ΔɻԠ࣌ؒ౸ணײ֮ʹΒ͖ͭ ͕͋Εɺવɺͪߦྻ͘ͳΔɻϦιʔεͷύϑΥʔϚ ϯε͕มಈతͰ͋Ε͋Δ΄ͲɺϦΫΤετͷॏෳ͕සൃ͠ɺ ͪߦྻʹฒͿػձ͕૿͑Δɻ ݁Ռͱͯ͠ɺ΄ͱΜͲͷΫϥυίϯϐϡʔςΟϯάϓϥοτ ϑΥʔϜͰɺߴ͍ฒߦੑ҆ఆ͍ͨ͠Ԡ࣌ؒͷୡ͕ ࠔʹͳΔɻ
͏͢ज़ͳ͍ͷ͔ʁ
CPUͷ੍ݶʹؔͯ͠ɺͰ ͖Δ͜ͱͦΕ΄Ͳͳ͍ɻ
ͰɺI/Oผ
I/OύϑΥʔϚϯε্ͷͨΊͷղܾํ๏ ʢ1/4ʣ I/OʹɺشൃੑϝϞϦʢRAMʣͱӬଓϝϞϦ(σΟεΫɺ EBS)ͷͲͪΒΛར༻ͯ͠ߏΘͳ͍ɻ͜ͷͨΊɺγεςϜʹ ϝϞϦ͕ͲΕ͚ͩࡌ͞Ε͍ͯΔ͔ʹࠨӈ͞ΕΔՄೳੑ͕͋ ΔɻेͳϝϞϦ͕ࡌ͞Ε͍ͯΕɺಡΈऔΓΩϟογϡͰ ॲཧͰ͖ΔΑ͏ʹͳΔͨΊɺಡΈऔΓͱॻ͖ࠐΈʹඞཁͱͳΔ I/OΛݮͰ͖Δɻ
I/OύϑΥʔϚϯε্ͷͨΊͷղܾํ๏ ʢ2/4ʣ RAIDΛͬͯEBSϘϦϡʔϜΛετϥΠϐϯά/ϛϥʔϦϯ ά͢Εɺ͋ΔϙΠϯτ·ͰɺI/OύϑΥʔϚϯεΛվળͰ ͖Δɻ ※͔͠͠ɺEBSϘϦϡʔϜΛՃ͢ΔͱɺԿ͔ͷͣΈͰ͍ͣ Ε͔ͷϘϦϡʔϜͷύϑΥʔϚϯε͕ࠅ͘Լ͢ΔՄೳੑ͕ٯ ʹߴ͘ͳΔɻ
I/OύϑΥʔϚϯε্ͷͨΊͷղܾํ๏ ʢ3/4ʣ σʔλϕʔεͷཧઃܭͱཧઃܭ(εΩʔϚͱΠϯσοΫε) Λ৻ॏʹߦ͏Α͏ʹ͢ΕɺΞϓϦέʔγϣϯΫΤϦͷ࠷ద Խͱಉ͡Α͏ʹɺI/Oͷݮ͕ظͰ͖Δɻ͜ΕΒɺI/OΛ ݮͰ͖ΔͨΊʹద༻Ͱ͖Δ࠷ޮՌతͳखஈɻ ૠೖΛଟ༻͢ΔΑ͏ͳϫʔΫϩʔυͰɺύʔςΟγϣϯΛ্ खͬͯ͘ɺI/OΛ̍ͭͷύʔςΟγϣϯʹूதͤ͞ΔΑ͏ʹ ͢ΔͱޮՌత͔͠Εͳ͍ɻ
I/OύϑΥʔϚϯε্ͷͨΊͷղܾํ๏ ʢ4/4ʣ MySQLαʔόιϑτΣΞΛΞοϓάϨʔυ͢Δɻ
૯ධ 4 ΫϥυͷجຊϦιʔεɺཧαʔόʹൺΔͱɺ ΓߴੑೳͰͳ͍ ʢωοτϫʔΫྫ֎ʣ 4 ΫϥυͷϦιʔεมಈతͳੑ࣭ͳͷͰɺ͕ ଟ͍ 4 I/O࣍ୈͰɺύϑΥʔϚϯε্͕Ͱ͖Δ
Agenda 4 ΫϥυͷϝϦοτɺσϝϦοτ 4 Ϋϥυͷ໎৴ 4 ܦࡁੑ 4 4ͭͷجຊϦιʔε͔ΒݟͨɺΫϥυͰͷMySQL ͷύϑΥʔϚϯε
4 MySQL DBaaS 4 ·ͱΊ
MySQL DBaaS
DBaaSͱʁ ΫϥυͰϗεςΟϯά͍ͯ͠ΔαʔόʹMySQLΛΠϯε τʔϧ͢Δํ๏Ҏ֎ʹɺMySQLΛΫϥυͰ༻͢Δํ๏ ͕͋Γ·͢ɻ ͭ·Γɺσʔλϕʔε͍ͨ͠ΛϦιʔεͱͯ͠ఏڙ͢Δͱ͍͏ ͜ͱͰ͢ɻ ͦΕ͕ɺDBaaS(Database as a Service)
ͭ·ΓɺΫϥυͰDBΛऔಘ͠ɺ αʔϏεΛ࣮ࡍʹ࣮ߦ͢Δ࡞ۀ ͤΔ͜ͱ͕Ͱ͖Δ
Amazon RDS 4 ݱஈ֊Ͱ༻͍ͯ͠ΔMySQLαʔ όͱ΄΅มΘΒͳ͍ 4 γεςϜཧશͯAmazon͕ ߦͯ͘͠ΕΔ 4 ಛݖͷ੍͕͍͔ͭ͋͘ΔɹʢϨ
ϓϦέʔγϣϯؔ࿈ͷૢ࡞Ұ ࣮ߦͰ͖ͳ͍etc…ʣ
ϝϦοτ 4 σʔλϕʔεཧ࡞ۀͷେΛAmazonʹؙ͛Ͱ͖Δɻ ʢϨϓϦͱ͔શͯߦʣ 4 RDSͷ΄͏͕ଞͷํ๏ΑΓίετ͕͔͔Βͳ͍͜ͱ͕͋ Δɻ ※අ༻ߏɺਓతࢿݯʹΑͬͯ…(CDP͕͓Ζ͔ͦͩ ͱɺඅ༻ରޮՌΊͳ͍) 4
ݖݶͷ੍ݶͳͲͰɺώϡʔϚϯΤϥʔΛ͍Ͱ͘ΕΔ
σϝϦοτ 4 ͦͦαʔόʹΞΫηεͰ͖ͳ͍ ʢI/OͷԠ࣌ؒͳͲͷɺϦιʔεͷڍಈΛܭଌͰ͖ͳ͍ʣ 4 શͳεϩʔΫΤϦϩάϑΝΠϧΛऔಘͰ͖ͳ͍ʢࠅ͍ʣ 4 PerconaͷΑ͏ͳύϑΥʔϚϯεڧԽػೳɺଘࡏ͠ͳ͍ ʢΠέͯͳ͍ʣ 4
ࣗͨͪͰղܾͰ͖ΔΑ͏ͳͰɺશͯAmazonʹґ པ͠ͳ͚ΕͳΒͳ͍ʢࣃᙱ͍ʣ
͏ʔΜ…
૯ධ 4 ύϑΥʔϚϯεʹؔͯ͠ɺਖ਼ඍົɻ ίετ͔ΒݟͯɺϦιʔεࢹCloudWatchͱ͍͏ผ αʔϏεͷར༻͕ٻΊΒΕΔͷͰɺඅ༻͕༨ܭʹ͔͔Δɻ ͲͪΒ͔ͱ͍͏ͱɺϏδωεχʔζʹج͍ͮͯRDSΛ༻ ͢Δ͔൱͔Λஅ͢Δͷ͕ಘࡦɻ ύϑΥʔϚϯε͕Ͳ͏ͯ͠ඞཁͳ߹ɺܿ͘AWSΫϥ υΛఘΊ·͠ΐ͏ʂ
Cloud SQL 4 Google͕ఏڙ͍ͯ͠ΔɺϑϧϚ ωʔδυͷMySQLσʔλϕʔε 4 ෳͷκʔϯͰͷಉظɾඇಉظϨ ϓϦέʔγϣϯՄೳ 4 ಛݖͷ੍͕͍͔ͭ͋͘Δ
ʢϑΝΠϧૢ࡞ܥͷؔ(LOAD DATA INFILEͱ͔)࣮ߦͰ͖ͳ ͍etc…ʣ
ϝϦοτ 4 σʔλͷ҉߸ԽʹΑΔ҆શੑͷ্ 4 ॊೈͳྉۚମܥ 4 JDBCͱDBΞΫηεAPIΛαϙʔτ
σϝϦοτ 4 ݸʑͷΠϯελϯε500GB·Ͱ 4 GAE(Google App Engine)͋Γ͖ͷσʔλϕʔε 4 ରԠݴޠ͕গͳ͍ 4
ଞͷαʔϏεͷҠ২͕ࠔ
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