!SLIDE bullets center

• In memory, key-value* store
• Non-blocking, single threaded
• 100k reads/writes per sec

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Swiss army knife for data

• Binary-safe strings
• List, set, sorted set, hash
• Pub/sub channels
• Expirable keys

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Caching

• Hash input query
• Shove result into redis
• Set an expiration
• Delete to invalidate

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Web app sessions

• Only accessed by primary key anyways
• Lower per-page overhead
• Expire automatically

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tail logs

• LPUSH + LTRIM into a list
• Track latest N events

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Task queues

• LPOP/RPUSH on a list
• Blocking atomic POPs for workers
• Backend for resque and restmq

!SLIDE bullets #API Throttling

• Store list using API key
• Fast limit checks
• Capped collections with expiration