Redis: Client side caching
Explore how client-side caching in Redis improves application performance by reducing server requests. Understand the challenges of cache invalidation and the mechanisms Redis offers, including TTL, PUB/SUB messaging, and Redis 6's tracking and broadcasting modes for efficient invalidation management.
What is client-side caching
When the client requires data, they ask the Redis server to provide the data. Each back and forth from the server results in some bandwidth consumption, and it takes some time to get the result. It is possible to cache the result of the most frequently used keys on the client-side. This drastically improves the performance of the application, as it does not need to send requests to the database
Challenges in client-side caching
The biggest challenge faced in caching the data on the client-side is how to invalidate the data. Suppose we have cached some data on the client-side, and it is changed on the server. The client will keep referring to the stale data present in its cache. There should be some mechanism to invalidate the data on the client’s cache if it is ...