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
UUIDは衝突の夢を見るか
Search
Dorian
April 26, 2017
Programming
1
1.2k
UUIDは衝突の夢を見るか
Dorian
April 26, 2017
Tweet
Share
More Decks by Dorian
See All by Dorian
VMとAWS ECSがメインのインフラにKubernetesを導入した効能
doridoridoriand
1
3.5k
オープンSNSフレームワークについて
doridoridoriand
0
1.1k
Other Decks in Programming
See All in Programming
UPDATEがシステムを複雑にする? イミュータブルデータモデルのすすめ
shimomura
0
500
レガシーシステムの機能調査・開発におけるAI利活用
takuya_ohtonari
0
480
Using AI Tools Around Software Development
inouehi
0
940
Blueskyのプラグインを作ってみた
hakkadaikon
1
420
PT AI без купюр
v0lka
0
210
ワンバイナリWebサービスのススメ
mackee
10
7.6k
Step up the performance game with Spring Boot and Project Leyden
mhalbritter
0
170
20250528 AWS Startupイベント登壇資料:AIコーディングの取り組み
procrustes5
0
150
TypeScript LSP の今までとこれから
quramy
1
460
ワイがおすすめする新潟の食 / 20250530phpconf-niigata-eve
kasacchiful
0
290
型安全RESTで爆速プロトタイピング – Hono RPC実践
tacke_jp
0
110
List Unfolding - 'unfold' as the Computational Dual of 'fold', and how 'unfold' relates to 'iterate'"
philipschwarz
PRO
0
180
Featured
See All Featured
Product Roadmaps are Hard
iamctodd
PRO
53
11k
Site-Speed That Sticks
csswizardry
9
620
"I'm Feeling Lucky" - Building Great Search Experiences for Today's Users (#IAC19)
danielanewman
228
22k
Optimizing for Happiness
mojombo
378
70k
Docker and Python
trallard
44
3.4k
Designing for Performance
lara
609
69k
Distributed Sagas: A Protocol for Coordinating Microservices
caitiem20
331
22k
Scaling GitHub
holman
459
140k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Testing 201, or: Great Expectations
jmmastey
42
7.5k
GitHub's CSS Performance
jonrohan
1031
460k
CoffeeScript is Beautiful & I Never Want to Write Plain JavaScript Again
sstephenson
161
15k
Transcript
66*% িಥͷເΛݟΔ͔ 4LJMM8FEOFTEBZ
͓·͑ͩΕ w ͍ͩ͠ w --ͱ͔Α͘ॻ͘Α w ࠷͍ۙΜ;ΒΛ͔͍ͬͯ͡·͢ w ͓ञΛࢁҿΊΔਓΛਅʹ୳͍ͯ͠·͢
66*% w ϢχʔΫͳจࣈྻΛಘΔ࣌ྑ͍ͬͯ͘Δͱࢥ͍ ·͢ ҎԼྫ GEEDBCBEDE w ͲΜͳʹੜͯ͠িಥ͠ͳ͍ͱ͔ɻɻ w
ͰຊͳΜͰ͔͢Ͷ
ͦͦ66*%ͱ w ࢄγεςϜ্Ͱͱ౷ແ͠ʹ࡞Ͱ͖Δࣝผࢠͱ ͯ͠ઃܭ͞Εͨ w όʔδϣϯେผͯͭ͠ଘࡏ w ༷3'$ͱͯ͠ެ։͞Ε͍ͯΔ IUUQTUPPMTJFUGPSHQEGSGDQEG
w ࠷ॳͷࣈͷ෦͕όʔδϣϯΛද͍ͯ͠Δ w ࠷ޙͷจࣈͷ෦όϦΞϯτͱݺΕΔ มछͷछྨΛද͍ͯ͠Δ w όʔδϣϯ/*$ͷ."$ΞυϨεΛ༻ͨ͠Γ w όʔδϣϯόʔδϣϯͷҰ෦Λ104*9ͷ6*%(*%Ͱஔ͖ ͑ͨͷ
w όʔδϣϯͱ.%4)"Ͱੜͨ͠ϋογϡΛ༻͍ͯ ͍Δͷͱͳ͍ͬͯΔ GEEDBCBEDE
GEEDBCBEDE w զʑ͕ීஈ༻͍͍ͯΔ66*%όʔδϣϯ w ͦΕʹՃ͑ͯόϦΞϯτͱݺΕΔจࣈྻ͕ՃΘΔ " # ͷ͍ͣΕ͔ʹͳΔ
w શͯཚʹΑΔੜ
GEEDBCBEDE w ্ه66*%ਐͰܻCJU ਐ w ͔͜͜Βόʔδϣϯ ͱόϦΞϯτ
ΛҾ ͘ͱɺCJUͷࣗ༝͕͋Δ w ?º?௨Γ͘͢͝ଟ͍
ຊʹিಥ͠ͳ͍ͷʁ w ҙ֎ͱඦສͱ͔ग़ྗ͢ Δͱ͙͢িಥ͢ΔͷͰʁ w ͍͘Β EFWVSBOEPNͱ͔छʹ ͬͯͯͶ͑ɻɻ
·͋ͬͯΈͬ w 66*%Λͻͨ͢Βੜͯ͠%#ʹ*/4&35 w ͕࣌ؒڐ͢ݶΓͣͬͱ
require 'securerandom' require 'mysql2' client = Mysql2::Client.new(:host => 'localhost', :username
=> 'root', :password => 'password', :database => 'uuid' ) while true do begin uuid = SecureRandom.uuid client.query("insert into uuid.ruby (`uuid`) values ('#{uuid}')") puts uuid rescue => e p e end end
ॏෳνΣοΫ w ੜ͞Εͨ66*%શ݅Λ͖࣋ͬͯͯɺ ཁૉΧϯτ w VOJRϝιουΛར༻ͯ͠ॏෳഉআ ཁૉΧϯτ w ཁૉʹҧ͍͕͋Εॏෳ͍ͯ͠Δͣ ͘͢͝ಥ؏ͳॏෳνΣοΫ
ॏෳνΣοΫ ͘͢͝ಥ؏ͳॏෳνΣοΫ puts 'িಥͨ͠Ͱ' if data.count != data.uniq.count
ॏෳνΣοΫ దʹ#PUʹͭͿ͔ͤͯ֬ೝͱ͔ͯ͠·ͨ͠
ൃੜ w ༻ҙ͍ͯͨ͠%#ͷ༰ྔΛ͑Δ w ૉʹσΟεΫ͕େ͖͍%#Λ࡞Ҡߦ
ൃੜ w ԯ͑ͨ͋ͨΓ͔ΒॏෳνΣοΫͰ͖ͳ͘ͳΔ ͓͍ 1$ͷϝϞϦʹΒͳ͍ w ஞ࣍%#͔ΒಡΈऔͬͯಉҰͷ66*%͕͋Δ͔%#ʹ ͍߹Θͤ͢Δํࣜʹมߋ
ൃੜ w ,74ʹ͢ΕΑ͔ͬͨײ w ฒྻॲཧग़དྷΔΑ͏ʹ͚ͨ͠ΕͲΓ͍ ༻ҙͨ͠%#αʔόʔ͕ශऑͩͬͨ
Ͱɺিಥͨ͠ͷʁ w ੜͨ͠66*%ԯສ w ԯϨίʔυௐͨײͩ͡ͱিಥ͠·ͤΜͰͨ͠
Ͱɺিಥͨ͠ͷʁ w ଟ͠ͳ͍ͱࢥ͏ w 66*%ͩͱিಥ͠ͳ͍ͷ͔͚ͩΕͲɺ୯७ͳIFYͱ͔ Ͳ͏ͳΜͩΖ͏
͓͠·͍