Ontology-Driven Observability: Building an End-to-End Knowledge Graph at Netflix

Netflix has developed an ontology-driven observability system that uses a knowledge graph to provide a unified view of its infrastructure and services. The system, called 'Eclipse,' is built on top of Apache Pinot and uses a graph database to store and query data. The knowledge graph is used to answer complex queries, such as 'which services are impacted by a specific issue?' The system is designed to handle large volumes of data and scale horizontally. Netflix has open-sourced Eclipse, allowing other companies to use the technology. The company has also released a paper on the system's architecture and design decisions.