tech + code = technical coder on Instagram: "In system design, Redis is a helper — not a lifeline. Here’s how to survive a Redis crash. Comment "Pdf" for detailed Redis notes. ⸻ 1️⃣ Fallback to DB 👉 When Redis is down, all reads temporarily go directly to the database. Example: Product page loads slower, but it still loads. ⸻ 2️⃣ Add Rate Limiting 👉 Protect the database from sudden traffic spikes when cache is gone. Example: Instead of 50K hits/sec, only a safe number reaches DB. ⸻ 3️⃣ Use Red