Engineering Logs for Troubleshooting & Debugging
Problem Description During a rolling update of a Qwen cluster, the model fails to parse the output of an external tool that it invokes as part of its processing pipeline. The failure manifests as runtime exceptions such as: JSONDecodeError: Expecting value: line 1 column 1 (char 0) protobuf parsing error: mismatched wire type ValueError: Unexpected … Read more
Problem Description After a rolling update of the ONNX Runtime (ORT) library in a production Retrieval‑Augmented Generation (RAG) service, the retrieval component consistently returns empty result sets. The symptom manifests as: Search logs contain INFO: Retrieval returned 0 results – query embedding norm is 0.0, check model initialization. Embedding generation logs sometimes show WARN: Embedding … Read more
Problem Description A high‑traffic Text Generation Inference (TGI) service is deployed as a StatefulSet on a Kubernetes cluster. During a rolling upgrade the controller stalls after the first pod is updated. Subsequent pods never reach the Running/Ready state, causing a partial service outage and a noticeable drop in request capacity. Typical symptoms observed in the … Read more
Problem: Webhook timeout during rolling update of PostgreSQL pods in Kubernetes During a CI/CD‑driven rolling update of a PostgreSQL StatefulSet (or a Patroni‑managed cluster), the admission webhook that validates pod creation repeatedly fails with a timeout. Typical error messages observed in the controller logs are: Failed calling webhook “postgresql-admission-webhook”: context deadline exceeded Error from server … Read more