aws-database

ElastiCache loses your AI chatbot's session memory at every node replacement. MemoryDB doesn't. A decision framework for when to pick MemoryDB over ElastiCache, OpenSearch Serverless, and S3 Vectors for AI workloads — with the latency math and the failure mode that forces the switch.

Aurora Limitless shards Aurora transparently to hundreds of millions of rows per second. Here's when it beats vertical scaling, how to pick shard keys, and the real cost trade-offs.