How can we ensure data consistency in cache systems?

How can we ensure data consistency in cache systems?

To ensure data consistency in cache systems, you can use strategies like cache invalidation, write-through caching, or read-through caching.

What is cache invalidation and how does it work?

Cache invalidation is the process of removing or updating cached data when the underlying data changes, ensuring that stale data isn't served.

Can you explain write-through caching?

In write-through caching, data is written to both the cache and the underlying data store simultaneously, ensuring consistency.

What are the trade-offs of using these strategies?

The trade-offs include performance impacts, complexity in implementation, and potential latency in data retrieval.