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
rubyhiroba
Search
Sponsored
·
Ship Features Fearlessly
Turn features on and off without deploys. Used by thousands of Ruby developers.
→
Ryoichi SEKIGUCHI
September 21, 2014
Technology
6
1.4k
rubyhiroba
Ryoichi SEKIGUCHI
September 21, 2014
Tweet
Share
More Decks by Ryoichi SEKIGUCHI
See All by Ryoichi SEKIGUCHI
非同期処理とは何なのか
ryopeko
0
98
functionalなアプローチで動的要素を排除する
ryopeko
1
4.2k
Ruby makes everything
ryopeko
0
140
正しく失敗しながら進むプロダクト開発/railsdm2018
ryopeko
10
6.1k
CircleCI を使って自動(ほぼ)でセキュリティアップデート / circleci meetup
ryopeko
4
580
Kaizen Platform でやっている Kaizen Week というイベントについて / kaize week tokyurubykaigi 10
ryopeko
2
1.2k
mysql casual talks vol7
ryopeko
0
2.5k
devsumi2014-dena-bootcamp2014
ryopeko
40
65k
jtrk02
ryopeko
0
5.8k
Other Decks in Technology
See All in Technology
Hardware/Software Co-design: Motivations and reflections with respect to security
bcantrill
1
260
あたらしい上流工程の形。 0日導入からはじめるAI駆動PM
kumaiu
1
240
Azure SQL Databaseでベクター検索を活用しよう
nakasho
0
120
EventBridge API Destination × AgentCore Runtimeで実現するLambdaレスなイベント駆動エージェント
har1101
7
270
漸進的過負荷の原則
sansantech
PRO
3
410
20260120 Amazon VPC のパブリックサブネットを無くしたい!
masaruogura
2
170
【5分でわかる】セーフィー エンジニア向け会社紹介
safie_recruit
0
41k
toCプロダクトにおけるAI機能開発のしくじりと学び / ai-product-failures-and-learnings
rince
5
3.4k
エンジニアとマネジメントの距離/Engineering and Management
ikuodanaka
3
670
Amazon ElastiCacheのコスト最適化を考える/Elasticache Cost Optimization
quiver
0
240
AWS Devops Agent ~ 自動調査とSlack統合をやってみた! ~
kubomasataka
2
250
日本語テキストと音楽の対照学習の技術とその応用
lycorptech_jp
PRO
1
320
Featured
See All Featured
No one is an island. Learnings from fostering a developers community.
thoeni
21
3.6k
Neural Spatial Audio Processing for Sound Field Analysis and Control
skoyamalab
0
150
The Impact of AI in SEO - AI Overviews June 2024 Edition
aleyda
5
710
Building the Perfect Custom Keyboard
takai
2
670
End of SEO as We Know It (SMX Advanced Version)
ipullrank
3
3.9k
Lightning Talk: Beautiful Slides for Beginners
inesmontani
PRO
1
430
Build The Right Thing And Hit Your Dates
maggiecrowley
38
3k
My Coaching Mixtape
mlcsv
0
41
StorybookのUI Testing Handbookを読んだ
zakiyama
31
6.5k
AI: The stuff that nobody shows you
jnunemaker
PRO
2
210
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
27k
The Illustrated Children's Guide to Kubernetes
chrisshort
51
51k
Transcript
Rails ʹ͓͚Δ ֎෦γεςϜͱͷεϜʔζͳ ౷߹։ൃ ؔޱ྄Ұ ! ryopeko " ryopeko 3VCZ)JSPCBੜ׆ൃදձ
ؔޱ ྄Ұ # ryopeko " ryopeko • ύʔϑΣΫτRuby ڞஶऀ •
σϒαϛ2014εϐʔΧʔ • ϕετεϐʔΧʔ 2Ґड • ࠷ۙਓ͔ؒͨͪΒෳDBͱݺ Ε͍ͯΔ
IUUQBENJOTCBS
֎෦γεςϜΛͬͨ ৽ΞϓϦέʔγϣϯ։ൃ
IUUQEJBSZTIVDSFBNOFUCMPHSVCZLBJHJMJHIUOJOHUBMLTIUNM lΈΜͳͬͱಠࣗݚڀͷՌΛൃද͢Δͱ͍͍ͱࢥ͏
֎෦γεςϜͱͷܨ͗͜Έ $ API % RPC DB ࢀর
ࠓճDBΛڞ༗͢Δ߹ͷ ख๏ʹ͍ͭͯͷ͓
' "QQ
' "QQ ' "QQ
' "QQ ' "QQ ' "QQ
' "QQ ' "QQ ' "QQ
DBڞ༗ͨ͠߹ʹ ʹͳͬͯ͘Δ͜ͱ
ෳਓͰ։ൃ͍ͯ͠Δ߹ BQQMF DIFSSZ QFBDI HSBQF PSBOHF GSVJUT
ෳਓͰ։ൃ͍ͯ͠Δ߹ BQQMF DIFSSZ QFBDI HSBQF PSBOHF GSVJUT TFMFDU
ෳਓͰ։ൃ͍ͯ͠Δ߹ BQQMF DIFSSZ QFBDI HSBQF PSBOHF GSVJUT TFMFDU TFMFDU
ෳਓͰ։ൃ͍ͯ͠Δ߹ BQQMF DIFSSZ QFBDI HSBQF PSBOHF GSVJUT TFMFDU EFMFUF TFMFDU
ෳਓͰ։ൃ͍ͯ͠Δ߹ BQQMF DIFSSZ QFBDI HSBQF PSBOHF GSVJUT TFMFDU EFMFUF TFMFDU
Unit Test Ͱಉ༷
Unit Test ࣌ͷڞ༗DBͷࠔΓࣄ • ςετ༻ͷDB͕ڞ༗͞ΕͯΔͱ݁ՌʹӨڹ • ςετ༻ͷDB͕ଘࡏ͠ͳ͍߹DBͷϦΫ ΤετΛϞοΫ͢Δඞཁ • ςετσʔλΛ༻ҙ͢Δͷ͕͘͠ͳΔ
ڞ༗DBͷεΩʔϚมߋʹ ै͢Δͷ͕େม
͜͜·ͰͰ σϝϦοτΛ·ͱΊΔͱ…
DBڞ༗ͨ͠߹ͷσϝϦοτ • ෳਓͰͷ։ൃ࣌ʹσʔλෆ߹ͱͳΔ • Unit Test ࣌ʹڞ༗DBͷऔΓѻ͍͕ࡶʹͳΔ • ڞ༗DBͷεΩʔϚมߋʹै͢Δͷ͕େม
ΓखݩʹDB͕͋ͬͯ΄͍͠… (Rails ͬͯखݩʹDB࡞Γ·͢͠…)
Ͱखݩʹ ࣋ͬͯΈ·͠ΐ͏
DBڞ༗ͨ͠߹ͷσϝϦοτ • ෳਓͰͷ։ൃ࣌ʹσʔλෆ߹ͱͳΔ • Unit Test ࣌ʹڞ༗DBͷऔΓѻ͍͕ࡶʹͳΔ • ڞ༗DBͷεΩʔϚมߋʹै͢Δͷ͕େม ্ͭղܾͦ͠͏ʜ
खݩʹ࣋ͭ߹ͷ σϝϦοτʹ͍ͭͯߟ͑ͯΈΔ
खݩʹDBΛ࣋ͬͨ߹ͷσϝϦοτ • σʔλͷ४උ͕େม • ରʹ Slave ؚ͕·Ε͍ͯͯߋ৽ܥ SQL ଧͭΑ͏ͳ ίʔυΛॻ͍͍ͯΔ߹ɺຊ൪ͰϨϓϦ͕ࢭ·ͬͯ
ࢮ͵ • ݩͷDBεΩʔϚΛΔज़͕ඞཁ • ݩͷDBεΩʔϚΛखݩʹ؆୯ʹ࠶ݱ͢Δज़͕ඞཁ
σʔλͷ४උ͕େม
σʔλͷ४උ͕େม • db:seed తͳΈͰҰׅͰ༻ҙ͢Δ • ֎෦͔Βࢀর͢ΔͷΈͷDBͷ߹ɺσʔλύ λʔϯΛཏͰ͖Δͱ͍͏ϝϦοτ • େมͳͷύλʔϯͷϝϯς •
(Ͳ͏ͤςετͰඞཁͩ͠)
खݩʹDBΛ࣋ͬͨ߹ͷσϝϦοτ • σʔλͷ४උ͕େม • ରʹ Slave ؚ͕·Ε͍ͯͯߋ৽ܥ SQL ଧͭΑ͏ͳ ίʔυΛॻ͍͍ͯΔ߹ɺຊ൪ͰϨϓϦ͕ࢭ·ͬͯࢮ
͵ • ݩͷDBεΩʔϚΛΔज़͕ඞཁ • ݩͷDBεΩʔϚΛखݩʹ؆୯ʹ࠶ݱ͢Δज़͕ඞཁ
Slave ʹߋ৽ܥΫΤϦ
Slave ʹߋ৽ܥΫΤϦ • # eagletmt/switch_point Λ͏͜ͱͰղܾ • Slave ʹߋ৽ܥΫΤϦΛଧͱ͏ͱ͢Δͱྫ֎ •
ෳDBΛऔΓѻ͏͜ͱʹͳΔͷͰ switch_point ͱͯ༗ޮ • ࣗͣͱ M/S Λҙࣝ͢ΔΑ͏ͳએݴతهड़ʹͳΔ
IUUQTHJUIVCDPNFBHMFUNUTXJUDI@QPJOUCMPCNBTUFSTQFDNPEFMTSC TXJUDI@QPJOUͷઃఆྫ Ұ෦ൈਮ
IUUQTHJUIVCDPNFBHMFUNUTXJUDI@QPJOUCMPCNBTUFSTQFDNPEFMTSC TXJUDI@QPJOUͷઃఆྫ Ұ෦ൈਮ
खݩʹDBΛ࣋ͬͨ߹ͷσϝϦοτ • σʔλͷ४උ͕େม • ରʹ Slave ؚ͕·Ε͍ͯͯߋ৽ܥ SQL ଧͭΑ͏ͳ ίʔυΛॻ͍͍ͯΔ߹ɺຊ൪ͰϨϓϦ͕ࢭ·ͬͯࢮ
͵ • ݩͷDBεΩʔϚΛΔज़͕ඞཁ • ݩͷDBεΩʔϚΛखݩʹ؆୯ʹ࠶ݱ͢Δज़͕ඞཁ
ݩͷDBͷεΩʔϚΛΔज़
ݩͷDBͷεΩʔϚΛΔज़ • ۀͰ͍ͬͯΔεΩʔϚશͯ git Ͱཧ͞Ε͍ͯΔ • ͜͜ΛݟΕৗʹ࠷৽͕͋Δͱ͍͏ঢ়ଶ • ͜ͷϦϙδτϦͷεΩʔϚใΛ༻͢ΔΑ͏ʹσϓ ϩΠϓϩηεʹΈࠐ·Ε͍ͯΔ
• ฐࣾͷࣄྫʹؔΘΒͣɺmigration ֎ͷεΩʔϚͲ͜ ͔͠ΒʹҰݩཧ͞Ε͍ͯΔ͖
खݩʹDBΛ࣋ͬͨ߹ͷσϝϦοτ • σʔλͷ४උ͕େม • ରʹ Slave ؚ͕·Ε͍ͯͯߋ৽ܥ SQL ଧͭΑ͏ͳ ίʔυΛॻ͍͍ͯΔ߹ɺຊ൪ͰϨϓϦ͕ࢭ·ͬͯࢮ
͵ • ݩͷDBεΩʔϚΛΔज़͕ඞཁ • ݩͷDBεΩʔϚΛखݩʹ؆୯ʹ࠶ݱ͢Δज़͕ඞཁ
ݩͷDBͷεΩʔϚΛ खݩͰ؆୯ʹ࠶ݱ͢Δज़
ݩͷDBͷεΩʔϚΛ؆୯ʹ࠶ݱ͢Δज़ • Ұݩཧ͞Ε͍ͯΔεΩʔϚΛDBʹద༻ ͢Δͷ໘ • ໘ͳঢ়ଶͩͱεΩʔϚ͕ߋ৽͞Εͳ͘ͳΔ • Rails ʹ db:migrate
ͱ͍͏Έ͕͋Δͷ Ͱɺͦͷఔʹద༻ίετΛԼ͍͛ͨ
લఏ:εΩʔϚ͕ϦϙδτϦ ཧ͞Ε͍ͯΔ
͜ͷΛ ղܾ͢ΔΈΛ࡞ͬͯΈͨ
' # (JU)VC"1*$BMM 42- &YFDVUF ( 42-
db_supplier # SZPQFLPEC@TVQQMJFS
db_supplier (settings) DPOpHEBUBCBTFZNM
db_supplier (settings) DPOpHFOWJSPONFOUTEFWFMPQNFOUSC
DEMO
None
None
db_supplier Ͱ࣮ݱ͞Εͨ͜ͱ • ؆୯ʹҰݩཧ͞ΕͨεΩʔϚΛద༻͢Δ͜ ͱ͕Ͱ͖ͨ • ςετ࣌ʹ migration, fixture ͕͑ΔΑ͏ʹ
ͳͬͨ • ֎෦ͷDBͷײ৺ࣄΛݮΒͤͨ
db_supplier Ͱ࣮ݱ͍ͤͨ͜͞ͱ • εΩʔϚʹߋ৽ʹඋ͑ͯͲͷ࣌ͷͷ͕ద ༻͞Ε͍ͯΔ͔Θ͔ΔΑ͏ʹ͢Δ • db:seed ૬ͷͷΈࠐΊΔΑ͏ʹ • etc…
खݩʹDBΛ࣋ͬͨ߹ͷσϝϦοτ • σʔλͷ४උ͕େม • ରʹ Slave ؚ͕·Ε͍ͯͯߋ৽ܥ SQL ଧͭΑ͏ͳ ίʔυΛॻ͍͍ͯΔ߹ɺຊ൪ͰϨϓϦ͕ࢭ·ͬͯࢮ
͵ • ݩͷDBεΩʔϚΛΔज़͕ඞཁ • ݩͷDBεΩʔϚΛखݩʹ؆୯ʹ࠶ݱ͢Δज़͕ඞཁ
·ͱΊ
·ͱΊ • ֎෦ͷDBΛͦͷ··ར༻͢Δͱ։ൃ࣌ʹڝ߹ ͯ͠͠·͏ • खݩʹDBΛ࣋ͭʹͯ͠ద༻͕໘ • εΩʔϚͷཧͱద༻͕ඞཁ • gem
࡞ͬͯղܾͨ͠
࠷ޙʹ…
ͱ͍͑… • DBڞ༗ີ݁߹ʹͳΔ • ϞσϧͷϩδοΫ͕ॏෳͯ͠ଘࡏ͢ΔՄೳੑ • ҙਤ͍ͯ͠ͳ͍ͱ͜ΖͰDBΛ৮ΒΕ͍ͯΔՄ ೳੑ • API
͕༻ҙͰ͖ΔͳΒ API Λબ͖͢