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Oct 1, 2025 · Databases

Why Did Redis Memory Spike 10×? Uncover the Hidden Config Mistake

A sudden Redis memory surge from 2 GB to 20 GB was traced to a misconfigured list-compress-depth parameter, revealing how uncompressed lists and queue backlogs can cause ten‑fold memory growth, and outlining step‑by‑step diagnostics, compression fixes, and long‑term optimization strategies.