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
240
civic-notebook
poga
0
93
Fuzz Testing and go-fuzz
poga
0
290
everything is log
poga
12
1.8k
g0v intro
poga
0
81
新聞產生器
poga
0
570
RESTful API @ Front-End Developers Taiwan 2014-04-23
poga
3
130
Dependency Management in Go
poga
4
590
Other Decks in Programming
See All in Programming
TypeScript Graph でコードレビューの心理的障壁を乗り越える
ysk8hori
3
1.2k
macOS でできる リアルタイム動画像処理
biacco42
9
2.4k
Jakarta EE meets AI
ivargrimstad
0
620
as(型アサーション)を書く前にできること
marokanatani
10
2.7k
AI時代におけるSRE、 あるいはエンジニアの生存戦略
pyama86
6
1.2k
Hotwire or React? ~アフタートーク・本編に含めなかった話~ / Hotwire or React? after talk
harunatsujita
1
120
C++でシェーダを書く
fadis
6
4.1k
Tauriでネイティブアプリを作りたい
tsucchinoko
0
370
ECS Service Connectのこれまでのアップデートと今後のRoadmapを見てみる
tkikuc
2
250
CSC509 Lecture 09
javiergs
PRO
0
140
Ethereum_.pdf
nekomatu
0
470
とにかくAWS GameDay!AWSは世界の共通言語! / Anyway, AWS GameDay! AWS is the world's lingua franca!
seike460
PRO
1
900
Featured
See All Featured
A Modern Web Designer's Workflow
chriscoyier
693
190k
Visualizing Your Data: Incorporating Mongo into Loggly Infrastructure
mongodb
42
9.2k
Testing 201, or: Great Expectations
jmmastey
38
7.1k
Music & Morning Musume
bryan
46
6.2k
Bash Introduction
62gerente
608
210k
Site-Speed That Sticks
csswizardry
0
31
Practical Tips for Bootstrapping Information Extraction Pipelines
honnibal
PRO
10
720
Measuring & Analyzing Core Web Vitals
bluesmoon
4
130
The Psychology of Web Performance [Beyond Tellerrand 2023]
tammyeverts
44
2.2k
A better future with KSS
kneath
238
17k
Teambox: Starting and Learning
jrom
133
8.8k
XXLCSS - How to scale CSS and keep your sanity
sugarenia
246
1.3M
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