Ray Data and Docling Tackle Enterprise AI’s Biggest Pain Point

Zach Anderson
Feb 27, 2026 16:58

New integration combines Ray Data’s distributed processing with Docling’s document parsing to process 10k+ complex files for RAG applications in hours instead of days.

Enterprise teams building AI applications just got a solution to their most frustrating bottleneck. Anyscale has detailed how combining Ray Data with Docling can transform weeks of document processing into hours—a development that could accelerate deployment timelines for companies sitting on massive document archives.

The technical integration addresses what insiders call the “data bottleneck” in Retrieval-Augmented Generation systems. While demos make generative AI look straightforward, the reality involves wrestling with thousands of legacy PDFs, complex tables, and embedded images that traditional processing tools handle poorly.

What Actually Changes

Ray Data’s streaming execution engine pipelines data across CPU and GPU tasks simultaneously. The Python-native architecture eliminates serialization overhead that plagues other frameworks when translating data between language environments. For teams running batch inference or preprocessing massive datasets, this means faster iteration cycles.

Docling handles the parsing complexity that breaks most traditional tools—accurately extracting tables and layouts while preserving semantic structure. When integrated with Ray Data, each worker node runs a Docling instance with embedded AI models in memory, enabling parallel document processing at scale.

The architecture works like this: a Ray Data Driver manages execution and serializes task code for distribution. Workers read data blocks directly from storage and write processed JSON files to the destination. The driver never becomes a bottleneck because it’s not handling actual data throughput.

Kubernetes Foundation

KubeRay orchestrates the Ray clusters on Kubernetes, handling dynamic autoscaling from 10 to 100 nodes transparently. The system includes automatic recovery when worker nodes fail—critical for large ingestion jobs that can’t afford to restart from scratch.

The end-to-end flow moves documents from object storage through parsing and chunking, generates embeddings on GPU nodes, and writes to vector databases like Milvus. RAG applications then query the database to feed context to LLMs.

Companies including Pinterest, DoorDash, and Instacart already use Ray Data for last-mile processing and model training, suggesting the technology has proven production viability.

Beyond Simple Search

The broader play here targets agentic AI workflows where autonomous agents execute multi-step tasks. Quality of processed data becomes more critical as agents rely on precise documentation to act on behalf of users. Organizations building scalable architectures now position themselves for advanced inference chains with multiple sequential LLM calls.

Red Hat OpenShift AI and Anyscale platforms provide deployment options with enterprise governance requirements. The open-source foundation means teams can start testing without major procurement hurdles.

For AI teams currently spending more time on data preparation than model tuning, this integration offers a practical path forward. The question isn’t whether distributed document processing matters—it’s whether your infrastructure can handle what comes next.

Image source: Shutterstock