What is a distributed caching strategy for a high-availability application?

In this scenario, you have to consider the following points: - Implement a **cluster of servers** that will all act as the distributed cache. Implement a **data sharding** process to evenly distribute the data amongst all cache servers and make sure it uses a consistent hashing algorithm to minimize cache reorganization when a server joins or leaves the cluster. - Add **cache replication** to have redundancy of your data in case of a failure, that way, your distributed cache is fault-tolerant as well. - **Cache invalidation** is a must on any caching solution, as your data will become stale if you don’t update it often.

caching system-design