Production

Data Ingestion and Incremental Sync for Production RAG: CDC Streams, Content Hashing, Backpressure, and Zero-Downtime Indexing

Maintaining retrieval-augmented generation (RAG) systems in production introduces a fundamental distributed systems challenge that rarely surfaces in proof-of-concept architectures: state synchronization. While initial ingestion across a static document corpus is straightforward, production data sources (PostgreSQL databases, transactional stores, object storage, and enterprise knowledge hubs) undergo continuous mutation. Records are inserted, updated, soft-deleted, and reassigned new access per