Understanding Cache Response
The Cache Response is a key part of Azure Cache for Redis. It determines how quickly data is served. A higher cache response time indicates the data is quickly available.
The cache response can be affected by factors like cache invalidation, cache miss, and the overall consistency of the data.
Key Concepts
- **Cache Miss:** Data isn't in the cache and needs to be fetched. - **Cache Hit:** Data is in the cache – fast retrieval. - **Cache Invalidation:** A mechanism to update the cache with new data.
Policies
Azure Cache for Redis has default policies that dictate how data is cached. These policies are configured through the Azure Portal, and you can override them using `cache-policy` settings.
Example
Consider a scenario where a user requests a product ID. The cache might be cached for a short time. If the product ID changes, the cache will be invalid, and the user will see an error.