Replacing a Cache Service with a Database
10 days ago
- #databases
- #caching
- #performance
- Caches provide pre-computed data at very low latencies compared to databases.
- Using a read replica as a cache can simplify systems by reducing dependencies.
- Caches are still preferred due to their cost-effectiveness, control over data subsets, and ability to handle high concurrency.
- Databases lack features like assigning priority to specific rows or eviction policies, which caches provide.
- Incremental View Maintenance (IVM) could help bridge the gap between caches and databases by precomputing results.
- Partial read replicas and IVM could potentially replace caches for certain use cases.