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
Redis: based on real story
Search
Poga Po
March 31, 2012
Programming
16
1.3k
Redis: based on real story
Talk @ NoSQL Taiwan
Poga Po
March 31, 2012
Tweet
Share
More Decks by Poga Po
See All by Poga Po
Spacer - iThome Serverless All-Star
poga
2
280
civic-notebook
poga
0
100
Fuzz Testing and go-fuzz
poga
0
350
everything is log
poga
12
1.8k
g0v intro
poga
0
90
新聞產生器
poga
0
640
RESTful API @ Front-End Developers Taiwan 2014-04-23
poga
3
160
Dependency Management in Go
poga
4
630
Other Decks in Programming
See All in Programming
CSC305 Lecture 04
javiergs
PRO
0
270
The Past, Present, and Future of Enterprise Java
ivargrimstad
0
360
iOSエンジニア向けの英語学習アプリを作る!
yukawashouhei
0
190
AIと人間の共創開発!OSSで試行錯誤した開発スタイル
mae616
1
160
いま中途半端なSwift 6対応をするより、Default ActorやApproachable Concurrencyを有効にしてからでいいんじゃない?
yimajo
2
420
CSC509 Lecture 06
javiergs
PRO
0
260
Web Components で実現する Hotwire とフロントエンドフレームワークの橋渡し / Bridging with Web Components
da1chi
3
2.5k
CSC305 Lecture 03
javiergs
PRO
0
240
overlayPreferenceValue で実現する ピュア SwiftUI な AdMob ネイティブ広告
uhucream
0
180
Foundation Modelsを実装日本語学習アプリを作ってみた!
hypebeans
0
110
非同期jobをtransaction内で 呼ぶなよ!絶対に呼ぶなよ!
alstrocrack
0
910
Devoxx BE - Local Development in the AI Era
kdubois
0
130
Featured
See All Featured
Keith and Marios Guide to Fast Websites
keithpitt
411
23k
Docker and Python
trallard
46
3.6k
The Cost Of JavaScript in 2023
addyosmani
55
9k
Measuring & Analyzing Core Web Vitals
bluesmoon
9
620
JavaScript: Past, Present, and Future - NDC Porto 2020
reverentgeek
52
5.6k
For a Future-Friendly Web
brad_frost
180
9.9k
Mobile First: as difficult as doing things right
swwweet
224
10k
Six Lessons from altMBA
skipperchong
29
4k
How STYLIGHT went responsive
nonsquared
100
5.8k
GitHub's CSS Performance
jonrohan
1032
470k
Being A Developer After 40
akosma
91
590k
How to Think Like a Performance Engineer
csswizardry
27
2k
Transcript
Poga 2012.03.31 based on real story
Hi 你好 Hallo 안녕 ciao salut こんにちは
i Poga
i wear many hats
i wear many hats build products
Product released PARTY? Let’s
Database CPU Utilization
Performance Degrading = Unhappy User = Less Profit
Complex Queries Inefficient schema
Limited Time
None
Just ADD it to your stack
Just ADD it to your stack Not Replace
Special Performance Simple In-memory Atomic
Special Performance Simple In-memory Atomic
Management Problem a.k.a. “We don’t have a MIS”
Dependency Feb 25, 2009 First public beta Oct 14, 2011
Redis 2.4 First external dependency jemalloc Mar 31, 2012
Installation Feb 25, 2009 First public beta Oct 14, 2011
Redis 2.4 First external dependency jemalloc Mar 31, 2012 make install make install
Stable
None
Special Performance Simple In-memory Atomic
Special Performance Simple In-memory Atomic
In-Memory Memcached High Performance Simple Key-Value Redis In-Memory High Performance
Data Structures Persistence Replication ...
Data Structures List, Set, Sorted Set, Hash, String http://redis.io/commands
Understand your problem http://nosql.mypopescu.com/post/18977451039/redis-guide-what-each-redis-data-type-should-be-used Every command in Redis is manipulating
a data structure
Special Performance Simple In-memory Atomic
Special Performance Simple In-memory Atomic
=
http://redis.io/topics/benchmarks FAST for real
Special Performance Simple In-memory Atomic
No Race Condition every command in redis is atomic use
redis as a incremental counter “There are very few systems that support an “increment and return” operation, and Redis is one of them (Oracle sequences are another).” http://nateware.com/2010/02/18/an-atomic-rant/
No Race Condition every command in redis is atomic Combine
multiple command: still atomic! MULTI SET key 123 SET key2 456 EXEC Warning: Don’t confuse with transaction
Special Performance Simple In-memory Atomic
i
Did I make any changes to MySQL? NO It’s still
our main database
Did I solve the problem? YES solve complex queries via
Redis data structure
Happy Database Add Redis to stack
How? Sorted Set: Per user notification String: API request limiter
String, List: Request logging List: Job Queue
Real World = Risk Persistence Replication Sharding
Persistence RDB AOF
RDB • Snapshot • Compact • .rdb file can be
transfered to other backup system • Chances to lose data
AOF • logs of every write operation • durable •
bigger file size
You want a degree of safety comparable to PostgreSQL? Just
use BOTH
Replication Master Slave Slave Slave
Replication • Read-only salves • Save on slaves
Sharding • Memory is limited • Split data into multiple
redis servers
Presharding Single Machine Redis instance Redis instance Redis instance Redis
instance Redis instance Redis instance Redis instance Redis instance Redis instance Redis instance Multiple Machine
Some Case Study • Resque • Rubygems.org • Tumblr •
Instagram
Resque High Performance Job Queue https://github.com/blog/542-introducing-resque
Rubygems.org http://www.scribd.com/doc/34269414/Redis-Persistence-Power feature switch API request limit Logging Job Queue
Tumblr http://engineering.tumblr.com/post/7819252942/staircar-redis-powered-notifications Per-user Notification 30,000 request/s per server
Instagram http://engineering.tumblr.com/post/7819252942/staircar-redis-powered-notifications Simple Key-value mapping 1/3 cost on hardware
Cross server temporary file sharing i Redis string is binary-safe
Future
Future Lua Scripting Watchdog
Lua Scripting Atomic Saving bandwidth between servers
Ruby Redis Sum up 200,000 values ... 200,000 times
Ruby Redis Sum up 200,000 values, with Lua scripting 1
request
Data Model Query Language Scripting MySQL Redis Relational Table SQL
Data Structures Lua Lua
Watchdog Let Redis monitor itself Like slow queries in MySQL
More information to diagnose problem
Bright Future Lua Scripting Watchdog
= Unique
Unique = Not replacing anyone Job security of other database
What will u get
More life less cost Happy User
Thank you question? @devpoga