Cache Aside Pattern
The Cache Aside Pattern is a caching strategy where the application code explicitly manages the cache, loading data from the cache on reads and updating the cache on writes. It involves checking the cache first for data, fetching from the primary data source (like a database) if not found, and then storing it in the cache for future requests. This pattern helps improve performance by reducing database load and latency for frequently accessed data.
Developers should use this pattern in high-traffic applications where read operations are frequent, such as e-commerce sites or social media platforms, to enhance scalability and response times. It's particularly useful when data consistency requirements allow for eventual consistency, as it simplifies cache invalidation by updating the cache only when data changes occur.