Memory First An introduction to Redis
summary
A fast, in‑memory key‑value system that calls itself a Memory‑first NoSQL DB, exposes strings, hashes, lists, sets, sorted/geo sets, streams and probabilistic types, and ships modules like RedisJSON + RediSearch modules and Bloom/TimeSeries. Demos include storing a JPEG as a binary string, using bitfields for an Advent of Code parser, and Node code using node‑redis where commands map 1:1 and run successfully. Notable numbers: HyperLogLog: 12KB ≈97% accurate and persistence options are RDB snapshots (e.g. hourly if ≥1 change) or AOF with typical fsync every second; field‑level hash TTLs arrive in 7.4.
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chapters (11)
- 0:00Introduction to Redis
- 0:27What is Redis
- 3:39Redis data structures
- 15:25Core Redis commands
- 23:31Low-level Redis protocol
- 29:31Working with strings
- 36:50Hashes and sets
- 39:20Redis JSON module
- 47:39Redis persistence
- 51:30Code demo with Node Redis
- 56:05Q&A
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