llamaindex

RAG reranker timeout in LlamaIndex Docker container under load

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Problem During load testing and in production traffic spikes, the RAG reranker component of LlamaIndex running inside a Docker container consistently throws timeout errors. The failure manifests as: 2024-09-28 12:34:56,789 ERROR reranker – RerankerTimeoutError: Reranking request timed out after 30.0 seconds Traceback (most recent call last): File “/app/llama_index/reranker.py”, line 212, in rank response = self.client.post(payload, … Read more

LlamaIndex init fails with ConfigMap mount error in Kubernetes

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Problem LlamaIndex initialization fails inside a Kubernetes pod that is part of a data‑pipeline job. The failure manifests as an exception when the library attempts to read credential files or configuration values that are expected to be provided via a ConfigMap or Secret volume mount. Typical error output: Traceback (most recent call last): File “/app/pipeline.py”, … Read more

LlamaIndex batch ingestion timeout under high‑traffic API gateway

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Problem – Batch Ingestion Timeout in LlamaIndex Behind a High‑Traffic API Gateway When a large document batch is submitted to an endpoint that forwards the request to a LlamaIndex ingestion service, the request frequently ends with a 504 Gateway Timeout or a client‑side deadline exceeded error. Under sustained traffic the ingestion job is aborted, leading … Read more

LlamaIndex filter expression parse error during Kubernetes autoscaling

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Problem Description When querying a LlamaIndex microservice deployed in a Kubernetes cluster, the service returns a FilterExpressionParseError for any query that contains complex boolean or range filters. Typical error messages observed in the pod logs are: FilterExpressionParseError: Unexpected token ‘AND’ at position 12 ValueError: Could not parse filter expression: syntax error near ‘>=’, expected ‘:’ … Read more

LlamaIndex storage class not found error during hybrid Kubernetes deployment

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Problem: “Storage class not found” error during LlamaIndex index initialization in a hybrid Kubernetes deployment LlamaIndex attempts to create a PersistentVolumeClaim (PVC) for the vector‑store backend (e.g., S3, Azure Blob) using the storage_class_name supplied in its configuration. In a mixed on‑prem / cloud environment the pod fails to start and the following error appears in … Read more

LlamaIndex JSON mode schema violation missing required fields in production

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Problem: LlamaIndex JSON mode produces schema‑violating payloads in production On an on‑premises server the ingestion pipeline receives JSON objects from LlamaIndex that are later consumed by internal Spark jobs and a REST indexing service. The pipeline intermittently fails with errors such as: SchemaValidationError: Missing required property ‘document_id’ JSONDecodeError: Expecting ‘,’ delimiter: line 4 column 27 … Read more

LlamaIndex replica sync lag during concurrent evaluation runs

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Problem Description During large‑scale RAG benchmark runs, multiple evaluation workers concurrently upsert documents into a distributed vector store (Pinecone, Weaviate, Milvus, or Azure Cognitive Search) via LlamaIndex. The retrieval phase intermittently returns stale embeddings and missing metadata, causing a measurable drop in precision (up to 12 %) and inconsistent answer faithfulness across workers. Typical symptoms observed … Read more

LlamaIndex context window overflow after recursive retrieval

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Problem Statement In a high‑throughput Retrieval‑Augmented Generation (RAG) service built on LlamaIndex, recursive retrieval combined with hybrid search (BM25 + embeddings) caused the assembled prompt to exceed the target LLM’s context window. The overflow manifested as: OpenAI API error: 400 Bad Request – This model’s maximum context length is 8192 tokens LlamaIndexError: Prompt exceeds max token limit … Read more

LlamaIndex StatefulSet update fails with pod termination delay

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Problem Description A production LlamaIndex service deployed as a StatefulSet began failing during rolling updates. Pods entered the Terminating phase for more than ten minutes, PVC unmounts stalled, and the vector‑store index became corrupted. The symptoms manifested as: Ingress returned 503 Service Unavailable – LlamaIndex API not ready. Ingestion pipelines timed out with Failed to … Read more

LlamaIndex training loop failed to fetch data due to network policy

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Problem Description During a nightly training run, the LlamaIndex training loop crashes when it attempts to load external documents or call remote APIs. The pod logs contain errors such as: urllib3.exceptions.MaxRetryError: Failed to establish a new connection: [Errno 111] Connection refused requests.exceptions.ConnectionError: HTTPConnectionPool(host=’example.com’, port=80): Max retries exceeded with url: /data.json (Caused by NewConnectionError) EgressPolicyDenied: traffic … Read more