あなたの知らない データベースのロギングの世界 / logging queries

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Ԟଜߊ߂(.01FQBCP *OD ೔ CVJMEFSTDPO ͋ͳͨͷ஌Βͳ͍  σʔλϕʔεͷϩΪϯάͷੈք

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γχΞΤϯδχΞ Ԟଜߊ߂!IGN ٕज़෦ϓϥοτϑΥʔϜάϧʔϓ

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!UONU͞ΜͷηογϣϯʹͰٕͨज़తରࡦͷͭ ʢ%#ϩΪϯάʣʹ͍͓ͭͯ࿩͠·͢ IUUQTTQFBLFSEFDLDPNUONUXIFSFEPXFTUBSUXJUIJOGPSNBUJPOTFDVSJUZ

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wͳͥ؂͕ࠪॏཁ͔ w؂ࠪϩάʹٻΊΔ৘ใ w؂ࠪϩάΛऔΔํ๏ w1SPYZ42-Λհͨ͠ߏ੒ w1SPYZ42-ͷϋϚΓͲ͜Ζ ຊ೔ͷςʔϚ ͔͜͜Β.Z42-த৺ ͜ͷล͔Β1SPYZ42-ͷ࿩

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ͳͥ؂͕ࠪॏཁ͔

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wʮΧϥʔϛʔγϣοϓʯʹ͓͚Δ৘ใྲྀग़ʹؔ ͢Δ͝ใࠂͱ͓࿳ͼ w IUUQTQEGQFQBCPDPNEPDVNFOUEQEG w IUUQTQEGQFQBCPDPNEPDVNFOUEQEG ൃදܦҢ

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ͳͥ؂͕ࠪॏཁ͔ ὎ͳʹ͔ى͖͔ͯΒ͡Ό஗͍

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௥੻ՄೳੑʢτϨʔαϏϦςΟʣͷ௿Լ ݕ஌ͷ೉қ౓্ঢ ճ෮ྗʢ෮چɺࣄۀܧଓʣͷ௿Լ ؂ࠪূ੻ͷෆ଍͕ট͘ϦεΫ

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Πϯγσϯτͷ࣌ܥྻ ೔࣌ ಺༰ 2018/01/07 (೔) 20:04 ݕ஌ 2018/01/07 (೔) 22:28 Ұ࣍ରԠ׬ྃ 2018/01/08 (݄) 01:33 ӨڹൣғҰ෦ൃ֮ 2018/01/10 (ਫ) 13:34 Өڹൣғ௥Ճൃ֮ 2018/01/10 (ਫ) 15:35 ୈࡾऀػؔʹΑΔௐࠪ։࢝ 2018/01/25 (໦) 11:58 ୈࡾऀػؔʹΑΔௐࠪ׬ྃ 2018/01/26 (ۚ) 07:40 ৘ใެ։ Өڹൣғͷ೺Ѳʹ͕͔͔࣌ؒΓɺ৘ใެ։ͷ஗Εʹܨ͕Δ

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ʮ཈ࢭɾ཈੍ʯ ʮ༧๷ɾ๷ࢭʯ ʮݕ஌ɾ௥੻ʯ ʮճ෮ɾܧଓʯ ৘ใηΩϡϦςΟରࡦͷڧԽ

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ʮ཈ࢭɾ཈੍ʯ ʮ༧๷ɾ๷ࢭʯ ʮݕ஌ɾ௥੻ʯˡຊηογϣϯͷςʔϚ ʮճ෮ɾܧଓʯ ৘ใηΩϡϦςΟରࡦͷڧԽ

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wઌͷΠϯγσϯτͰ͸ɺෆਖ਼ϓϩάϥϜʹΑΔ ͷσʔλϕʔε .Z42- ΞΫηε͕ൃ֮ wʮ͍ͭɺ୭͕ɺͲ͜ʹɺͲͷΑ͏ͳΫΤϦΛൃ ߦͨ͠ͷ͔ʯΛه࿥͠ɺ࠶ൃ๷ࢭʹ໾ཱͯΔ ؂ࠪϩάͷڧԽ

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؂ࠪϩάʹٻΊΔ৘ใ

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σʔλϕʔε΁ͷΞΫηε৘ใͳͲΛه࿥͠ɺͲ ͷΑ͏ͳૢ࡞͕ߦΘΕͨͷ͔Λɺ͋ͱ͔ΒͰ΋ ֬ೝͰ͖ΔΑ͏ʹอଘͨ͠΋ͷ σʔλϕʔεͷ؂ࠪϩάͱ͸

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w42-εςʔτϝϯτʢΫΤϦʣ wΫϥΠΞϯτ*1 wΫϥΠΞϯτϢʔβ w઀ଓσʔλϕʔε໊ w઀ଓઌϗετ໊ ؂ࠪϩάʹඞཁͳ৘ใྫ

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w%#ʹྲྀΕΔ͢΂ͯͷΫΤϦΛه࿥͍ͨ͠ w࣮ߦ͞ΕΑ͏ͱࣦͨ͠ഊΫΤϦ౳΋ؚ·ΕΔ ؂ࠪϩάʹඞཁͳཁ݅ "VEJU %# DMJFOU %# DMJFOU

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؂ࠪϩάΛऔΔํ๏

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.Z42-ͷઃఆ wHFOFSBM@MPH ϓϥάΠϯ wNZTRMBVEJU NDBGFF w.BSJB%#"VEJU1MVHJO %#ϓϩΩγ w1SPYZ42- w.BSJB%#.BY4DBMF ͍Ζ͍ΖͳΫΤϦϩάͷऔಘํ๏

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Ұ൪खܰͳํ๏ɻ%#ɺϢʔβɺϗετɺΫΤϦ ϩά͕547ܗࣜͰه࿥͞Ε͍ͯΔɻ HFOFSBM@MPH 2018-09-07T16:39:50.949045Z 8 Connect root@localhost on using Socket 2018-09-07T16:39:50.949471Z 8 Query select @@version_comment limit 1 2018-09-07T16:40:13.059736Z 8 Query SELECT * FROM test.t 2018-09-07T16:40:13.762332Z 8 Quit

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w%#΁ͷΞΫηε͕ܹ͘͠ͳΔͱϩάͷॻ͖ࠐ Έෛՙ͕όΧʹͳΒͳ͘ͳͬͯ͘Δ wҰݟ͓खܰͳํ๏͕ͩɺσʔλϕʔεͷσΟε Ϋ*0ʹӨڹΛٴͿ఺ʹ஫ҙ HFOFSBM@MPHӡ༻্ͷݒ೦఺

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wࣦഊͨ͠ΫΤϦ͕ه࿥͞Εͳ͍ wෆਖ਼ͳΫΤϦ͸ඞ࣮ͣߦ͞Ε͏Δ͔ʁ w؂ࠪϩά͸ɺෆਖ਼ͳΫΤϦ΋ؚΊͯɺ%#Ͱ࣮ ߦ͞ΕΑ͏ͱͨ͢͠΂ͯͷΫΤϦΛه࿥͍ͨ͠ ͷͰཁ݅Λຬͨͤͳ͍ HFOFSBM@MPH؂ࠪͱͯ͠ͷܽ఺

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1PTUHSF42-Ͱ͸MPH@TUBUFNFOUBMMͱ MPH@MJOF@QSFpYbUVIEJF`ͷΑ ͏ʹ͢Ε͹ه࿥Մೳͱͷ͜ͱ ͪΐͬͱԣಓ1PTUHSF42- 2018-09-10 01:14:05 UTC postgres 172.20.0.1 testdb idle 00000LOG: statement: SHOW server_version 2018-09-10 01:14:08 UTC postgres 172.20.0.1 testdb idle 00000LOG: statement: SELECT * FROM information_schema.tables;

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wIUUQTHJUIVCDPNNDBGFFNZTRMBVEJU w.Z42-αʔόϓϥάΠϯΛར༻ͨ͠؂ࠪϩά wMJCBVEJU@QMVHJOTPΛVTSMJC NZTRM QMVHJOҎԼʹ഑ஔ͢Δͱར༻Ͱ͖Δ NDBGFFNZTRMBVEJU

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curl -L 'https://bintray.com/mcafee/mysql-audit- plugin/download_file?file_path=audit-plugin- mysql-5.7-1.1.6-784-linux-x86_64.zip' -o audit- plugin-mysql.zip unzip audit-plugin-mysql.zip cp audit-plugin-mysql-5.7-1.1.6-784/lib/ libaudit_plugin.so /usr/lib/mysql/plugin/ NZTRMBVEJU४උ

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$ bash ./audit-plugin-mysql-5.7-1.1.6-784/utils/ offset-extract.sh /usr/sbin/mysqld //offsets for: /usr/sbin/mysqld (5.7.23) {"5.7.23","f5943a4e0d10ed18befd36bb32aed8bc", 6992, 7040, 4000, 4520, 72, 2704, 96, 0, 32, 104, 136, 7128, 4392, 2800, 2808, 2812, 536, 0, 0, 6360, 6384, 6368}, NZTRMBVEJUΦϑηοτͷܭࢉ

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--- my.cnf +++ /etc/my.cnf @@ -33,3 +33,7 @@ innodb_log_buffer_size=32M innodb_log_file_size=128M innodb_autoextend_increment=64 + +plugin-load=AUDIT=libaudit_plugin.so +audit_offsets=6992, 7040, 4000, 4520, 72, 2704, 96, 0, 32, 104, 136, 7128, 4392, 2800, 2808, 2812, 536, 0, 0, 6360, 6384, 6368 +audit_json_file=on NZTRMBVEJUNZDOGͷઃఆ

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{ "msg-type": "activity", "date": "1501591974035", "thread-id": "1", "query-id": "8508", "user": "", "priv_user": "", "ip": "", "host": "", "cmd": "create_db", "query": "CREATE DATABASE IF NOT EXISTS infra" } NZTRMBVEJUϩά΁ͷग़ྗ WBSMJCNZTRMNZTRMBVEJUKTPO Θ͔Γ΍͍͢Α͏੔ܗͯ͠·͢

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wHFOFSBM@MPHಉ༷ɺϩάͷॻ͖ࠐΈෛՙ wΦϑηοτͷܭࢉ͕ΊΜͲ͍͘͞ɻP⒎TFU FYUSBDUTIίϚϯυͷ࣮ߦʹHEC NETVN NZTRMEͷσόοά༻TZNCPMT͕ཁΔ NDBGFFNZTRMBVEJUͷݒ೦఺

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wIUUQTNBSJBECDPNLCFONBSJBEC BCPVUUIFNBSJBECBVEJUQMVHJO wNZTRMBVEJUͱಉ͡Α͏ʹTFSWFS@BVEJUTPΛ VTSMJC NZTRMQMVHJOҎԼʹ഑ஔ͢Δͱ ར༻Ͱ͖Δ .BSJB%#"VEJU1MVHJO

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INSTALL PLUGIN server_audit SONAME 'server_audit.so'; SET GLOBAL server_audit_logging = 'ON'; .BSJB%#"VEJU1MVHJO४උ

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20170807 13:56:47,example.com,root,localhost, 151722,0,CONNECT,,,0 20170807 13:56:47,example.com,root,localhost, 151722,73837,QUERY,,'select @@version_comment limit 1',0 20170807 13:56:47,example.com,root,localhost, 151722,73838,QUERY,,'select @@hostname',0 20170807 13:56:47,example.com,root,localhost, 151722,0,DISCONNECT,,,0 .BSJB%#"VEJU1MVHJOϩά WBSMJCNZTRMTFSWFS@BVEJUMPH

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wHFOFSBM@MPHಉ༷ɺϩάͷॻ͖ࠐΈෛՙ w.Z42-͸ࠓޙαϙʔτ͞ΕΔͷͰ͠ΐ͏͔ ʢܥͷϓϥάΠϯ͸ແ͔ͬͨʣ .BSJB%#"VEJU1MVHJOͷݒ೦఺

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)JHIQFSGPSNBODF .Z42-QSPYZ IUUQTQSPYZTRMDPN ΫΤϦͷϩΪϯάҎ֎ʹ΋ ΫΤϦΩϟογϡɺϧʔςΟ ϯάɺϑΝΠΞ΢Υʔϧͳ Ͳ৭ʑͱػೳ͕͋Δ 1SPYZ42-

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.Z42-ͱΫϥΠΞϯτͷؒʹઃஔ͠ɺΫΤϦ Λ஥հ͢Δ 1SPYZ42- 1SPYZ42- %# DMJFOU %# DMJFOU

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1SPYZ42-Λհͨ͠ߏ੒

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$ cat -A log/queries.log.00000018 mysql:3306M-~M-`sM-YM-^PKuÊ^@M-~M-~uM-YM- ^PKuÊ^@M-~)JM-ÊTaM-^Ly~^Hhello!!1$ 1SPYZ42-ͷϩά͸όΠφϦ IFMMPͱ͍͏ΫΤϦΛ౤༷͛ͨࢠ

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wIUUQTHJUIVCDPNUBLBJTIJqVFOUQMVHJO QSPYZTRMRVFSZMPH w 1SPYZ42-ͷϩά͸όΠφϦ

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wຊ౰͸͜ͷ࿩Λ͔ͨͬͨ͠ w1SPYZ42-ͷམͱ݀͠ʹϋϚΓ·ͬͯͨ͘ͲΓ ண͚ͳ͔ͬͨͷͰɺͦͷ࿩Λ͠·͢ w1SPYZ42-ͷϋϚΓͲ͜Ζͱͯ͠঺հ͠·͕͢ɺ ʮΫϥΠΞϯτͱσʔλϕʔεʹதؒ૚ΛڬΉʯ ͱ͍͏ߏ੒ΛऔΔͱ͖ʹؾʹ͓͖͍ͯͨ͠ͱ͜ ΖͰ΋͋Γ·͢ Մ༻ੑΛଛͶͳ͍ΞʔΩςΫνϟ

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1SPYZ42-Λհͨ͠ߏ੒ ͱʹ͔͘΍ΔΜͩύλʔϯ server A server B server C ProxySQL ProxySQL ProxySQL DB app app app 0.0.0.0:3306 0.0.0.0:3306 0.0.0.0:3306

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1SPYZ42-Λհͨ͠ߏ੒ Consul watch ProxySQL Cluster Client Client Client ProxySQL ProxySQL ProxySQL DB db-proxy.service.foo.consul (via Consul DNS Interface) ཧ૝ڷ

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1SPYZ42-ͷϋϚΓͲ͜Ζ ΫϥΠΞϯτͱσʔλϕʔεʹதؒ૚ΛڬΉߏ੒Λ औΔͱ͖ʹؾʹ͓͖͍ͯͨ͠ͱ͜ΖͰ΋͋Γ·͢

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Ϣʔβ؅ཧ໰୊

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w 1SPYZ42-͸όοΫΤϯυͷ%#ʹͭͳ͙ΞΧ΢ϯτ৘ใ Λࣗ෼Ͱอ͍࣋ͯ͠Δ w %#ͷNZTRMVTFSͱ1SPYZ42-ͷNBJONZTRM@VTFST ͕ζϨΔͱ໘౗ Ϣʔβ؅ཧ໰୊ ProxySQL (main.mysql_users) Client DB Connect as hello (using *668425423DB5…) *DB5193AF9213… con builders *123456788909… hello *668425423DB5… password username Client Client Connect as builders (using *12345678909…) Connect as con (using *12345678909…) ⭕ ⭕ ❌ *DB5193AF9213… con bbuilders *8425423DB519… hello *668425423DB5… password username ⭕ ❌

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DIBSTFU໰୊

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w1SPYZ42-͸TLJQDIBSBDUFSTFUDMJFOU IBOETIBLFΛαϙʔτͯ͠ͳ͍ w1SPYZ42-ͷEFGBVMUDIBSTFUͱ͍͏֓೦΋ ՃΘΓɺ.Z42-ͷDIBSTFUͱDMJFOUͷ DIBSTFUͱࡾ໾ἧ͍౿Έ w݁ՌɺVKJTͱ͔͋ΔͱจࣈԽ͚͢Δ DIBSTFU໰୊

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wͤɺ4&5/".&4 wجຊతʹ͸ΫϥΠΞϯτͰؤுΔ͔͠ͳͦ͞͏ w1)1ͳΒNZTRM J @TFU@DIBSTFUؔ਺Λ࢖͏౳ DIBSTFU໰୊ΛͳΜͱ͔͢Δ

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.VMUJQMFYJOH໰୊

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1SPYZ42-͸ඪ४Ͱ௨৴ͷଟॏԽʢෳ਺ΫϥΠΞϯτ͔Β ͷ઀ଓΛ·ͱΊΔʣػೳΛఏڙ͍ͯ͠Δ 1SPYZ42-.VMUJQMFYJOH ProxySQL Application A DB Client Client Client Client multiplexing client backend proxy

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-"45@*/4&35@*%ؔ਺ͷΑ͏ͳʮηογϣϯதͷ࠷ۙͷ */4&35݁ՌʯΛݟΔΑ͏ͳ΋ͷͱ૬ੑ͕ѱ͍ 1SPYZ42-.VMUJQMFYJOH ProxySQL Application A DB Client Client Client Client multiplexing client backend proxy

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mysql> SHOW CREATE TABLE t\G ******************** 1. row ******************** Table: t Create Table: CREATE TABLE `t` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(10) NOT NULL, PRIMARY KEY (`id`) ) ENGINE=InnoDB DEFAULT CHARSET=utf8mb4 COLLATE=utf8mb4_0900_ai_ci -"45@*/4&35@*%

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mysql> INSERT INTO t VALUES (NULL, 'hfm'); mysql> SELECT * FROM t; +----+------+ | id | name | +----+------+ | 1 | hfm | +----+------+ mysql> SELECT LAST_INSERT_ID(); +------------------+ | LAST_INSERT_ID() | +------------------+ | 1 | +------------------+ -"45@*/4&35@*%

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mysql> INSERT INTO t (name) VALUES ('builders'), ('con'), ('yeah!!'); mysql> SELECT * FROM t; +----+----------+ | id | name | +----+----------+ | 1 | hfm | | 2 | builders | | 3 | con | | 4 | yeah!! | +----+----------+ mysql> SELECT LAST_INSERT_ID(); +------------------+ | LAST_INSERT_ID() | +------------------+ | 2 | +------------------+ -"45@*/4&35@*%

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ੜ੒͞Εͨ*%͸ɺ઀ଓ͝ͱʹαʔόʔ಺ʹอ࣋͞Ε·͢ɻ ͭ·Γɺؔ਺ʹΑͬͯࢦఆ͞ΕͨΫϥΠΞϯτʹฦ͞Εͨ஋ ͸ɺͦͷΫϥΠΞϯτʹΑͬͯ"650@*/$3&.&/5Χϥ ϜʹӨڹΛ༩͑Δ࠷ۙͷεςʔτϝϯτ༻ʹ࠷ॳʹੜ੒͞Ε ͨ"650@*/$3&.&/5஋Ͱ͢ɻ͜ͷ஋͸ɺ΄͔ͷΫϥΠ Ξϯτ͕ಠࣗͷ"650@*/$3&.&/5஋Λੜ੒ͨ͠৔߹Ͱ ΋ӨڹΛड͚ΔՄೳੑ͸͋Γ·ͤΜɻ͜ͷಈ࡞ʹΑͬͯɺ֤ ΫϥΠΞϯτ͸΄͔ͷΫϥΠΞϯτͷΞΫςΟϏςΟʔΛؾ ʹ͢Δ͜ͱͳ͘ɺϩοΫ΍τϥϯβΫγϣϯΛ࣮ߦ͠ͳ͍Ͱ ಠࣗͷ*%ΛऔಘͰ͖·͢ɻ -"45@*/4&35@*% IUUQTEFWNZTRMDPNEPDSFGNBOKBJOGPSNBUJPOGVODUJPOTIUNMGVODUJPO@MBTUJOTFSUJE

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1SPYZ42-.VMUJQMFYJOH ProxySQL Client Client Client INSERT INSERT INSERT SELECT LAST_INSERT_ID()

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1SPYZ42-.VMUJQMFYJOH ProxySQL Client Client Client INSERT INSERT INSERT SELECT LAST_INSERT_ID() ProxySQL DB INSERT INSERT INSERT SELECT LAST_INSERT_ID()

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1SPYZ42-.VMUJQMFYJOH ProxySQL Client Client Client INSERT INSERT INSERT SELECT LAST_INSERT_ID() ProxySQL DB INSERT INSERT INSERT SELECT LAST_INSERT_ID() ͜ͷ*/4&35 Ͳͷ$MJFOUग़਎

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w.VMUJQMFYJOHͷੈքʹ͓͍ͯΫΤϦ͸ࠞ͟Δ wಉ࣌ʹଟ਺ͷΞΫηεͰ༰қʹࠞ͟Δ 1SPYZ42-.VMUJQMFYJOHͷ൓ল

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w.VMUJQMFYJOHͷੈքʹ͓͍ͯΫΤϦ͸ࠞ͟Δ wಉ࣌ʹଟ਺ͷΞΫηεͰ༰қʹࠞ͟Δ w-"45@*/4&35@*%͕ର৅ͱ͸ผςʔϒϧͷ*% ͱ͔औ͖ͬͯͪΌ͏ wJEͰ͋Δ΂͖ͱ͜Ζ͕ʹ ͳ͍ͬͯͨΈ͍ͨͳใࠂΛ΋Βͬͯٽ͘ 1SPYZ42-.VMUJQMFYJOHͷ൓ল

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wࣾ಺ͷΠϯςάϨʔγϣϯ؀ڥ΍εςʔδϯά ؀ڥͰݕূͨ͠ͱ͖͸ൃݟͰ͖ͳ͔ͬͨ wձࣾͷਓ͔͠৮Βͳ͍؀ڥʹ௿ΞΫηεස౓ w࠶ݱͰ͖ͳ͍ੋඇ΋ͳ͍ -"45@*/4&35@*%໰୊ͷࠔ೉

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wNZTRMTMBQͰେྔͷฒྻΞΫηεΛߦͬͨ wฒྻ౓Λ্͛ΔͱίωΫγϣϯ͕ࠞ͟Γ࢝Ίͨ w.VMUJQMFYJOHػೳΛΦϑʹͨ͠Β࣏ͬͨ 5IBOLT!L-P8 -"45@*/4&35@*%໰୊ͷ࠶ݱ

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CREATE TABLE a ( id BIGINT(20) UNSIGNED NOT NULL AUTO_INCREMENT, name VARCHAR(10), updated BOOLEAN DEFAULT false, PRIMARY KEY (id) ); NZTRMTMBQ INSERT INTO mysqlslap.a (name) VALUES ('hello'); SELECT * FROM mysqlslap.a; ... SELECT * FROM mysqlslap.a; UPDATE a SET updated = true WHERE id = (SELECT LAST_INSERT_ID()); create.sql query.sql

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mysqlslap \ --host=proxysql_url \ --user=user \ --password=******** \ --delimiter=';' \ --create=create.sql \ --query=query.sql \ --concurrency=100 \ --iteration=1 \ --no-drop NZTRMTMBQͷίϚϯυྫ

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NZTRMTMBQͷJUFSBUJPOΛ࢖͏ ͱɺ1SPYZ42-Ͱl/PEBUBCBTF TFMFDUFEzΤϥʔʹͳͬͯࢮ͵ɻ JUFSBUJPO͔͠ಈ͔ͳ͍ JUFSBUJPOͱ1SPYZ42-૬ੑ໰୊

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؂ࠪϩάͷ׆༻ํ๏ ʢࠓޙͷల๬ʣ

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wେৎ෉ͳΞΫηεͱ໰୊͋ΔΞΫηεͷफ़ผ wͭ·Γෆਖ਼ΫΤϦͷϒϩοΩϯά΍௨ใ ؂ࠪϩάͷ׆༻

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wෆਖ਼ͷఆٛ͸αʔϏε࣍ୈɺܾΊͷ෦෼΋͋Δ wྫ͑͹8)&3&۟ͷແ͍4&-&$5ΫΤϦ౳ wͨͩ͠ɺಠࣗఆٛ͢Δʹ͸ਓखʹݶք͕͋Δ ෆਖ਼ΫΤϦͱ͸

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ෆਖ਼ͳσʔλΞΫηε༧๷ͷݚڀ IUUQTSBOEQFQBCPDPNQBQFSTJPUQSPDFFEJOHLPNFJQEG

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w ͳʹ͔ى͖͔ͯΒͰ͸஗͍ͷͰϩά͸͔ͬ͠ΓऔΔ w ΫϥΠΞϯτͱ%#ͷؒʹ૚ΛڬΉͱมԽ͕େ͖͍ w ॿ͚ͯ͘Ε w ਐḿ͋Ε͹ϒϩάͳͲͰใࠂ͠·͢ ·ͱΊ