Redis High‑Level Design (HLD): How Redis Is Internally Built
Table of Contents
Introduction: What You Will Learn
Foundation (Beginner)
What Redis Is and Why It Matters
Redis High-Level Design (HLD): How Redis Is Internally Built
A comprehensive guide to understanding Redis architecture and internal design.
TL;DRAI
Redis uses a single-threaded event loop on in-memory structures with RDB/AOF persistence and asynchronous replication. Critical trade-offs include RDB vs. AOF durability, replication consistency, and vertical vs. cluster scaling—informing cache strategy, failover resilience, and cost.
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