1. Redis Fundamentals and the String Type
Redis, which stands for REmote DIctionary Server, is a versatile data store written in the C programming language. By default it listens for client connections on TCP port 6379. Ar...
Read full chapter →The essential Redis Data Structures & Use Cases cheat sheet: 7 concise chapters you can read in minutes, distilled from the full deck. When you're ready, drill the flashcards or test yourself under exam conditions.
Redis, which stands for REmote DIctionary Server, is a versatile data store written in the C programming language. By default it listens for client connections on TCP port 6379. Ar...
Read full chapter →A Set in Redis is an unordered collection of unique strings. Adding members with SADD is constant time, \(O(1)\) per element, while reading the full membership list with SMEMBERS i...
Read full chapter →The Redis List is an ordered collection of strings, ordered by insertion. Small lists are stored in a compact structure called a listpack, which replaced the older ziplist represen...
Read full chapter →A Redis Stream is an append-only log data structure that supports consumer groups, message IDs, and acknowledgments. Each entry carries an ID composed of the millisecond timestamp...
Read full chapter →Beyond the core types, Redis offers several specialized structures that solve specific problems very efficiently. The HyperLogLog is a probabilistic counter for unique items. Regar...
Read full chapter →Redis gives operators fine-grained control over what happens when memory fills up. Two settings drive this behavior: the maxmemory directive, which caps how many bytes Redis is all...
Read full chapter →Redis provides several mechanisms for distributing data and coordinating concurrent access. Replication involves asynchronous copies from a primary to one or more replica nodes, wh...
Read full chapter →Done reading?
Test yourself with the Redis Data Structures & Use Cases practice exam — timed questions, instant score, full review of wrong answers. Free.
🎯 Take the Practice Exam →