Caching and Connection Management Questions

Covers caching strategies and connection management used to improve database performance and scalability. Topics include caching patterns such as local in memory caches and distributed caches, cache eviction policies and time to live strategies, cache invalidation and coherence trade offs, read through and write through approaches, cache warming and prefetching, the impact of caching on consistency and correctness, instrumentation and monitoring of cache hit and miss rates, sharding and partitioning of caches, connection pooling design including pool sizing, connection reuse, leak detection, prepared statement caching, transaction boundary interactions with pooling, and operational concerns when using caches and pools in cloud and multi region deployments.