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Learn to build cost-efficient, multi-tenant knowledge bases using time-to-live (TTL) operations in this 47-minute code-focused conference session from AWS re:Invent 2025. Discover how to dramatically reduce infrastructure costs in SaaS environments by implementing serverless architectures that ingest documents only when needed and automatically expire unused documents. Follow along with live coding demonstrations that address the critical challenge of managing multiple tenants with varying usage patterns. Explore practical implementation of Amazon Bedrock's custom data source with DynamoDB TTL triggers and intelligent document lifecycle management. Master a tiered-based approach by implementing knowledge bases with a choice of vector databases, including OpenSearch and S3 Vectors. Gain insights into broader applications of TTL-driven session management, cache optimization, and tenant resource provisioning strategies for scalable multi-tenant architectures.
