Distributed Caching And Invalidation

Use When

• Read-heavy paths need lower latency
• Cache coherence issues are causing stale user data

Workflow

1. Classify cacheable data and staleness tolerance.
2. Define cache keys, TTL, and ownership.
3. Implement write-through or invalidation strategy.
4. Add fallback behavior for cache misses and outages.
5. Observe hit ratio, stale reads, and stampede risk.

Required Checks