Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
About Rails ConnectionPool
Search
Takahiro Uchiyama
July 22, 2020
Technology
0
190
About Rails ConnectionPool
Quipper社内の「ゆるいRuby LT会 Vol.1」でやった資料です。
Takahiro Uchiyama
July 22, 2020
Tweet
Share
More Decks by Takahiro Uchiyama
See All by Takahiro Uchiyama
日々の意思決定の積み重ねを記録するアーキテクチャ・デシジョン・レコード / Architectural Decision Records
highwide
24
19k
停止性問題と数 / Halting problem and number
highwide
0
1.2k
GraphQLスキーマ設計の悩みどころ/My concerns about GraphQL schema design
highwide
0
1.7k
How about today's coffee?
highwide
0
480
How to choose "best of the best"
highwide
1
740
A question about private method testing
highwide
0
3.5k
A life-changing innovation for my work-style by IoT
highwide
0
670
a-code-to-rhyme
highwide
3
650
よちがや.rb案内スライド
highwide
1
590
Other Decks in Technology
See All in Technology
Claude Codeから我々が学ぶべきこと
s4yuba
2
350
Vision Language Modelと自動運転AIの最前線_20250730
yuyamaguchi
3
1k
Tableau API連携の罠!?脱スプシを夢見たはずが、逆に依存を深めた話
cuebic9bic
2
190
ファインディにおける Dataform ブランチ戦略
hiracky16
0
250
相互運用可能な学修歴クレデンシャルに向けた標準技術と国際動向
fujie
0
170
AI によるドキュメント処理を加速するためのOCR 結果の永続化と再利用戦略
tomoaki25
0
320
Strands Agents & Bedrock AgentCoreを1分でおさらい
minorun365
PRO
6
160
alecthomas/kong はいいぞ
fujiwara3
6
1.3k
恐怖!テストコードなき夜
tsukuboshi
2
110
帳票構造化タスクにおけるLLMファインチューニングの性能評価
yosukeyoshida
1
220
猫でもわかるQ_CLI(CDK開発編)+ちょっとだけKiro
kentapapa
0
2.6k
With Devin -AIの自律とメンバーの自立
kotanin0
2
1k
Featured
See All Featured
How to Ace a Technical Interview
jacobian
278
23k
Building a Scalable Design System with Sketch
lauravandoore
462
33k
Facilitating Awesome Meetings
lara
54
6.5k
Faster Mobile Websites
deanohume
308
31k
Connecting the Dots Between Site Speed, User Experience & Your Business [WebExpo 2025]
tammyeverts
8
410
Bootstrapping a Software Product
garrettdimon
PRO
307
110k
Java REST API Framework Comparison - PWX 2021
mraible
31
8.7k
Build your cross-platform service in a week with App Engine
jlugia
231
18k
A designer walks into a library…
pauljervisheath
207
24k
Raft: Consensus for Rubyists
vanstee
140
7k
The Cost Of JavaScript in 2023
addyosmani
51
8.7k
Agile that works and the tools we love
rasmusluckow
329
21k
Transcript
Նͩʂ ϓʔϧͩʂ 3VCZͰ-5ͩʂʂʂ Նͩʂ ϓʔϧͩʂ 3VCZͰ-5ͩʂʂʂ 2VJQQFSࣾΏΔ͍3VCZ-5ձ7PM !IJHIXJEF
ίωΫγϣϯ ϓʔϧͷ ࣮ΛͬͯΈͨ ίωΫγϣϯ ϓʔϧͷ ࣮ΛͬͯΈͨ 2VJQQFSࣾΏΔ͍3VCZ-5ձ7PM !IJHIXJEF ͱ͍͏Θ͚Ͱ
"CPVUNF BOEUPEBZTUIFNF ✴ ݄2VJQQFSʹKPJO ✴ ίʔνϯάνʔϜͰ8FC։ൃΛ͍ͬͯΔ ✴ ͜ͳ͍ͩͷVKJIJTBษڧձͰͷGPSLUISFBEͷઆ໌͕େมΘ͔Γ͔ͬͨ͢ͷͰɺۀʹͭͳ͕ ΔܗͰ͏গ͠۷ΓԼ͛ͯΈ͍ͨͱࢥͬͨ ✴
✴ 3BJMTͷ$POOFDUJPO1PPM5ISFBEͱ͕ؔ͋Δͱ͍͏ͳΜͱͳ͘ฉ͍ͨ͜ͱ͕͋Γɺ͜ ΕΛ۷ΓԼ͛Δͷʮࣗʹͱͬͯ৽نੑʯ͕͋Γͦ͏
ͱ͍͏͍ܰؾ࣋ͪͰ࢝ΊͨΒ ऩर͕͔ͭͳ͘ͳͬͨͷͰ ੜஆ͔͍ͰݟकͬͯΒ͑Δͱ͏Ε͍͠Ͱ͢ ˞͜ͷϖʔδൃදલʹͲ͏͢Μͩ͜Εͬͯؾ࣋ͪʹͳͬͯՃ͠·ͨ͠
Foo.find(1) ௐࠪΛελʔτ͢Δ্Ͱͷ࠷ॳͷϞνϕʔγϣϯ ࠓ3BJMTͷ͜ͷཪଆͰ ίωΫγϣϯ͕Ͳ͏ΘΕ͍͔ͯ͘ίʔυΛ͍ͬͯͧ͘ʂ
ͱ͜Ζ͕ʮ'PPGJOEʯͰίωΫγϣϯϓʔϧ͕ Ͳ͏ΘΕΔ͔ݟΔલʹ 3BJMTΛىಈͨ͠ͱ͜Ζ͔Β͍ͬͯ͘ඞཁ͕͋Δͱɺ ࠓճֶΜͰ͍ͯΘ͔ͬͨɻ
SBJMTىಈ࣌ʹBDUJWFSFDPSESBJMUJF͕SFRVJSF͞ΕΔ IUUQTSBJMTHVJEFTKQJOJUJBMJ[BUJPOIUNM
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@IBOEMJOHSC DPOGJHͷಡΈࠐΈׂѪɻ
BDUJWFSFDPSEMJCBDUJWF@SFDPSESBJMUJFSC ·ͣ͜͜ͰFTUBCMJTI@DPOOFDUJPO͕ݺΕΔɻ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@IBOEMJOHSC ͜͜ͷFTUBCMJTI@DPOOFDUJPO͕ݺΕΔɻ
DPOOFDUJPOͷઃఆΛಡΈࠐΜͰ
ʮDPOOFDUJPO@IBOEMFSʯͷɺFTUBCMJTI@DPOOFDUJPOΛݺͿɻ DPOOFDUJPO@IBOEMFSͬͯԿʁ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPSFSC ࠓͷ5ISFBEʹઃఆ͞Ε͍ͯΕɺͦͷDPOODUJPO@IBOEMFSΛ͏ɻ ·ͩઃఆ͞Εͯͳ͔ͬͨΒɺ$POOFDUJPO"EBQUFST$POOFDUJPO)BOEMFSΛ5ISFBEʹొ͓ͯ͘͠ɻ $POOFDUJPO)BOEMFS5ISFBEʹͭͷΑ͏ͩɻ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTSC $POODFDUJPO)BOEMFSDPOOFDUJPO@QPPMSCʹ͋Γͦ͏ͩ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC ࠷ऴతʹݺΕΔFTUBCMJTI@DPOOFDUJPO͜Εɻ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTDPOOFDUJPO@TQFDJGJDBUJPOSC EBUBCBTFZNMͷΛݩʹ࡞ͬͨDPOGJH͔Βɺ$POOFDUJPO4QFDJGJDBUJPOΫϥεΛฦ͢
طʹଘࡏ͍ͯ͠ΔDPOOFDUJPOΛSFNPWF͢Δɻ ˞ͨͩ͠ࠓͬͯΔͷ3BJMTͷॳճىಈ࣌ͳͷͰׂѪɻ
"DUJWF4VQQPSU/PUJGJDBUJPOTJOTUSVNFOUFSͱʁ
IUUQTSBJMTHVJEFTKQBDUJWF@TVQQPSU@JOTUSVNFOUBUJPOIUNM
DPOOFDUJPOBDUJWF@SFDPSEͱ͍͏໊લͰ֎͔ΒϑοΫͰ͖ΔΠϕϯτΛ࡞͍ͬͯΔ
PXOFS@UP@QPPMͱʁ
!PXOFS@UP@QPPMJOJUJBMJ[F࣌ʹ࡞ΒΕ͍ͯΔ BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC
IUUQTXXXSVCZEPDJOGPHFNTDPODVSSFOUSVCZ$PODVSSFOU.BQ DPODVSSFOUSVCZͷ.BQͷΑ͏ͩɻ
TQFDOBNFΛʮPXOFSʯͱߟ͑ɺͦΕʹରԠ͢Δ $POOFDUJPO"EBQUFST$POOFDUJPO1PPMΛಥͬࠐΜͰ͍Δ͜ͱ͕Θ͔Δɻ
IUUQTBQJSVCZPOSBJMTPSH ͜͜ͰυΩϡϝϯτΛݟ͓ͯ͘ɻ
ᐌ͘ ✴ ίωΫγϣϯϓʔϧɺσʔλϕʔεଓΛߦ͏εϨουͱಉظ͢Δ ✴ ͦΕͧΕͷεϨουσʔλϕʔεͷίωΫγϣϯΛίωΫγϣϯϓʔϧ͔ΒνΣοΫΞ τ͠ɺίωΫγϣϯΛ͍ɺ͍ऴΘͬͨΒνΣοΫΠϯ͢Δ ฦ͢ ɻ ✴ $POOFDUJPO1PPMશʹUISFBETBGFͰɺҰͭͷίωΫγϣϯͭͷεϨου͔Βಉ࣌ʹ
͑ͳ͍ɻ ✴ ίωΫγϣϯΑΓεϨου͕ଟ͍ͱ͖ʹɺεϨου্͕ݶΛ͑ͯίωΫγϣϯΛ νΣοΫΞτ͠Α͏ͱͨ͠ͱ͖ɺ$POOFDUJPO1PPM5ISFBE͕ίωΫγϣϯΛฦͯ͘͠ ΔͷΛͭ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC
ίωΫγϣϯΛΩϟογϡ͢Δ͍ΕͷΛ࡞͓ͬͯ͘
ίωΫγϣϯऔಘͪ ͷΩϡʔΛ࡞͓ͬͯ͘
None
IUUQTBQJSVCZPOSBJMTPSHDMBTTFT"DUJWF3FDPSE$POOFDUJPO"EBQUFST$POOFDUJPO1PPM3FBQFSIUNM EBUBCBTFZNMͰઃఆ͞ΕͨGSFRVFODZͷඵ ͘͠σϑΥϧτͷඵ ͝ͱʹ ίωΫγϣϯϓʔϧͷGMVTIͱSFBQΛݺΜͰ͍Δ
None
None
None
None
✴ EBUBCBTFZNM͔ΒಘΒΕͨTQFDΛͱʹ$POOFDUJPO1PPMΛ࡞͍ͬͯΔ ✴ $POOFDUJPO1PPMࣗମ࡞Δͷͷɺ·ͩ$POOFDUJPOࣗମཱ͍֬ͯ͠ͳ͍͜ͱ͕Θ͔Δ "DUJWF3FDPSE$POOFDUJPO"EBQUFST$POODFUJPO)BOEMFSFTUBCMJTI@DPOOFDUJPO
Foo.find(1) Α͏͘3BJMT͕ىಈͰ͖ͨͷͰ͍ͭ͜ͷॲཧΛ͑Δɻ
BDUJWFSFDPSEMJCBDUJWF@SFDPSECBTFSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSECBTFSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPSFSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSECBTFSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@IBOEMJOHSC ͜͜ͷDPOOFDUJPO@IBOEMFS͖ͬ͞ݟͨΑ͏ʹˣʹ͋Δ BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPSFSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC QPPMΛऔಘͯ͠ɺQPPM͔ΒDPOOFDUJPOΛऔಘ͍ͯ͠Δͷ͕Θ͔Δ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC ίωΫγϣϯ͕Ωϟογϡ͞Ε͍ͯΔ߹ͦΕΛར༻͠ɺͳ͚ΕDIFDLPVUͯ͘͠Δ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC Ωϡʔʹ͕͍ͪΕͦΕΛ͍ɺͦ͏Ͱͳ͚Εɺ৽͍͠ίωΫγϣϯΛνΣοΫΞτ͢Δ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC OFX@DPOOFDUJPOࣗମɺ֤%#ͷBEBQUFS͔ΒಘΒΕΔ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPOOFDUJPO@BEBQUFSTBCTUSBDUDPOOFDUJPO@QPPMSC 5ISFBEಉظͷதͰɺ৽͍͠DPOOFDUJPO͕QPPMʹొ͞ΕΔ
BDUJWFSFDPSEMJCBDUJWF@SFDPSEDPSFSC ͱ͍͏Θ͚ͰɺDPOFODUJPOऔಘͷཱྀ͍͕ऴΘΓɺGJOEͰ͏ͨΊͷDPOOFDUJPO͕֬อͰ͖ͨʂ
ײ ✴ ࣮ɺ·ͱʹ3BJMTͷίʔυΛಡΜͰ͍͘ܦݧ͕͋·Γͳ͔ͬͨͷͰָ͋ͬͨ͘͠ ✴ εϥΠυʹసه͠ͳ͕ΒίʔυϦʔσΟϯά͍ͯ͘͠ͷɺҙ֎ͱϝϞϦ͕εϥΠυʹ ΔͷͰͪΐͬͱ͚ͩศར ✴ $POOFDUJPO1PPMͷ2VFVFͱ3FBQFSपΓͷཧղ͕·ͩઙ͍ ✴ 3BJMTͷ"84ͷ"VSPSBͷϑΣΠϧΦʔόʔ$POOFDUJPO1PPMपΓͰ૬ੑ͕ѱ͍ͱ͍͏ʹͭ
͍ͯฉ͍ͨ͜ͱ͕͋Γɺͦͷ͋ͨΓͷݟ͕ࣝਂ·ͬͨ ✴ ࢀߟIUUQNBUTVLB[IBUFOBCMPHDPNFOUSZ
-FUTEJWFJOUPUIFQPPM 5IBOLT