Design a Production RAG System in 2026
Design a production RAG system with hybrid search, reranking, evaluation, caching, security, capacity planning, and deployment tradeoffs for interviews.
rag
2 articles
Resolve "ChromaDB collection does not exist"
Two causes account for almost every ChromaDB 'collection does not exist' — using get_collection instead of get_or_create, and an ephemeral client that never persisted.