Introducing Redis at FDI UCM

Quick introduction to Redis database. I gave this talk in my university for a group of around 40/50 students.

Redis is the most popular key-value NoSQL database, in this quick introduction to Redis I'll cover:
- What's Redis?
- Which companies are using Redis in production? Twitter, Github, Pinterest, Instagram...
- Why to use Redis?
- What are the main features of Redis?
- Use case in Dailyfocus.

Any questions? Reach out to me on Twitter (@jgferreiro) or on my website: https://jorgeferreiro.com/contact

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on https://www.twitter.com/jgferreiro
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Transcript

1. Introducing
 Redis Jorge Ferreiro
2. @jgferreiro - Introducing Redis Jorge Ferreiro Ferreiro.me
3. The four 
 Questions
4. @jgferreiro - Introducing Redis What is Redis? Redis is the most popular(1) key-value NoSQL database. Created in 2009 [1] 22 May 2017 - https://db-engines.com/en/ranking/key-value+store It's like a big hash table en memoria
5. @jgferreiro - Introducing Redis Where Redis? Servers!
6. @jgferreiro - Introducing Redis Who is using Redis? And probably your future companies :)
7. @jgferreiro - Introducing Redis #1 key-value DB [1] db-engines.com ranking key-value+store (May 2017) YAY!
8. @jgferreiro - Introducing Redis Why Redis? • Session storage • Cache Results • Real time analytics, chat apps • API throttling… More on this: http://objectrocket.com/blog/how-to/top-5-redis-use-cases Shared data
9. @jgferreiro - Introducing Redis But no need to worry like Buddy!
10. Features
11. @jgferreiro - Introducing Redis Main features • Easy to use and open source (Yay! ) • Supports complex data structure for values • Tons of languages supported! ()
 Go, JavaScript (Node.js), Ruby, Java, PhP, Python… • Redis clusters! Persiste en disco!
12. @jgferreiro - Introducing Redis Redis in a nutshell! • SET name Jorge • GET name
 => Jorge • INCR NUMBER => 11 • EXPIRE NUMBER 120
13. Use case
14. @jgferreiro - Introducing Redis Dailyfocus It’s a productivity application that integrates all your services in one place ML (experiments)
15. @jgferreiro - Introducing Redis The Problem Feeds that refreshes fast Users, So store the sessions Feeds • Composed of many third party apis and Dailyfocus services. • Need to be reload each time
16. @jgferreiro - Introducing Redis The Problem 1. Calling APIS are costly 2. Delays on loading time make users angry 3. High server costs $$$ and workloads increased without caching
17. Jorge Ferreiro @jgferreiro | Introducing Redis The Solution (I) Caching user Sessions Requests Server parses request and gets sessions from Redis
18. Jorge Ferreiro @jgferreiro | Introducing Redis The Solution (II) No cached? Update cache Call to MongoDB, external APIS, etc… to reduce latency and waiting time … Caching user Feeds
19. @jgferreiro - Introducing Redis Wanna try? Try.redis.io
20. @jgferreiro - Introducing Redis Wanna review slides? bit.ly/redis_fdi
 or ferreiro.me
21. @jgferreiro - Introducing Redis
22. @jgferreiro - Introducing Redis Thank you! Github @ferreiro Jorge@ferreiro.me