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This article explains how Redis, an in‑memory key‑value store, ensures data durability through two persistence methods—RDB snapshotting and AOF command logging—detailing their commands, file structures, configuration options, performance trade‑offs, and rewrite processes.
This article explains how Redis, an in‑memory key‑value store, ensures data durability through two persistence methods—RDB snapshots and AOF command logging—detailing their commands, internal workflows, file structures, configuration options, and trade‑offs between safety and performance.
The article explains the concept of in‑memory (main‑memory) databases, traces the maturation and cost reduction of memory technology, discusses their performance benefits and volatility challenges, and outlines current bottlenecks, persistent‑memory breakthroughs, and future development stages.