Presentation given in class for Cloud Computing at Universitat Politècnica de Catalunya

1. Presenter: Jimmy Zöger
Course: Cloud Computing
Date: 2013-05-13

2. DATA MODEL
Types of values:
• Strings
• Lists of strings
• Sets of strings
Keys are strings
Data structures server
Not plain key-value store
• Sorted sets
• Hashes
> SET course "CLC"
OK
> GET course
"CLC"

3. PERSISTENCE
• Data stored in memory
• Persisted on disk if needed (snapshots or log)

4. FEATURES
• Atomic operations [increment, append, get_and_set ...]
• Transactions
• Expirations (relative or absolute, like a cache)
• Publish / Subscribe {messages in channels}

5. WHO IS USING IT?
• Called the “Swiss Army Knife” of key-value stores at Instagram
• Stack Overflow uses Redis as cache for the entire network
• Twitter uses Redis for real-time delivery
• Flickr, Craigslist, Disqus & Github also uses Redis