Distributed Caching

Summary

Running a shared cache (like a Redis cluster) accessible by all your server instances, instead of separate in-memory caches per instance that can go out of sync with each other.

• 1Compare a distributed cache (shared Redis) to per-instance in-memory caching for a multi-server app.
• 2Learn why cache consistency across instances is a real challenge at scale.
• 3Understand distributed caches also need their own scaling and replication strategy.