rag

Weaviate RAG prompt rendering error after updating template placeholders

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Problem – RAG Prompt Rendering Failure After Updating Template Placeholders In a staging deployment of Weaviate (Docker Compose, PostgreSQL vector store, generative AI module v1.22), updating the prompt_template.yaml to replace the built‑in {{question}} placeholder with a custom name (e.g., {{user_query}}) caused the generative endpoint to return HTTP 500. The logs contain errors such as: Error rendering … Read more

AMD GPU nodes TLS handshake failure to artifact storage after driver update

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AMD GPU Nodes TLS Handshake Failure to Artifact Storage After Driver Update Problem Description After upgrading the ROCm driver suite to 6.0.3 on a mixed‑GPU Kubernetes cluster (NVIDIA A100/H100 and AMD Instinct MI250), all pods scheduled on AMD GPU nodes began failing to download model artifacts from the central artifact-storage service (Azure Blob, S3, or … Read more

Mistral AI RAG citation JSON‑LD schema mismatch on edge node

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Problem Description – Mistral AI RAG citation JSON‑LD schema mismatch on edge node Edge deployments of Mistral AI’s Retrieval‑Augmented Generation (RAG) pipeline are failing to produce citations that conform to the required JSON‑LD schema. Downstream parsers – e.g., knowledge‑graph ingest services – reject the payload, leading to: Runtime crashes in Kubernetes edge pods (e.g., jsonschema.exceptions.ValidationError: … Read more

RAG metadata filter excludes relevant docs after schema change

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Problem: RAG metadata filter excludes relevant documents after a schema change Symptom During the fine‑tuning loop, the retrieval step returns 0 documents for queries that previously returned dozens of matches. OpenAI API logs contain errors such as: OpenAIError: 400 Bad Request – Invalid filter: field ‘is_verified’ does not exist in the index. Training loss spikes … Read more

TensorRT RAG batch inference fails with embedding dimension mismatch after model change

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Problem Description A production inference server that runs a Retrieval‑Augmented Generation (RAG) pipeline with TensorRT started throwing runtime errors after the passage encoder checkpoint was upgraded. The server processes thousands of queries per second in batches of up to 128 on a single GPU. Within seconds of deployment the following errors appeared in the logs: … Read more

RAG vector store connection timeout during rolling update of Meta LLaMA

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Problem Description During a rolling update of a production Meta LLaMA RAG service, the retrieval‑augmented generation pipeline intermittently fails to retrieve embeddings. The failure manifests as: grpc deadline exceeded: context deadline exceeded while attempting to query vector store VectorStoreError: connection refused – unable to establish TCP connection to Faiss endpoint TimeoutError: failed to retrieve embeddings … Read more

Prometheus nightly batch aborts due to RAG prompt placeholder not substituted

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Problem – Nightly RAG Batch Jobs Abort with Unsubstituted Prompt Placeholders The nightly batch pipeline that drives large‑scale Retrieval‑Augmented Generation (RAG) for reporting is failing. Each run aborts with a non‑zero exit code and the generated CSV contains malformed or empty fields. The primary symptom is a rendering error where template variables such as {{user_query}}, … Read more

TGI checkpoint storage class not found after A/B deployment

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TGI checkpoint storage class not found after A/B deployment Problem During an A/B testing rollout of Text Generation Inference (TGI) instances, the newly created replica fails to start and logs an error similar to: Failed to load checkpoint: storage class “fast-ssd” not found Other observed symptoms include: Pod tgi-a-12345 stays in Pending state. kubectl describe … Read more

Qwen RAG query decomposition failure after embedding model change

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Problem The RAG (Retrieval‑Augmented Generation) pipeline in the Qwen service started returning incomplete answers after the embedding model was upgraded from text‑embedding‑ada‑002 to qwen‑embedding‑v2. The most visible symptom was that the query decomposition stage produced either malformed sub‑queries or no sub‑queries at all, causing downstream vector search to return empty result sets. The issue manifested … Read more

RAG pipeline chunk overlap causing duplicate context injection in Kubernetes

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RAG Pipeline Chunk Overlap Causing Duplicate Context Injection in Kubernetes Problem The Retrieval‑Augmented Generation (RAG) service deployed on a GPU‑accelerated Kubernetes cluster began exhibiting: Excessive token duplication in the vector store, leading to inflated embedding counts. Memory pressure on A100/H100 pods, resulting in OOMKilled restarts. Embedding latency spikes (>30 s) and a 40 % drop in retrieval … Read more