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End-to-End RAG Observability (ANSWERED)

Scenario BasedRAGMedium15 min read

Medium RAG interview question on end-to-end rag observability — architecture, trade-offs, eval, and production patterns.

TL;DR — Quick Answer

Instrument query rewrite, retrieval scores, reranker output, prompt tokens, generation latency, faithfulness scores, and user feedback. Dashboard per-stage p95; trace IDs link complaints to retrieved chunks.

The Interview Question

Explain end-to-end rag observability. How would you design, implement, and evaluate this in a production RAG system? Discuss trade-offs and failure modes.

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