Explore the critical role of graph technology in large-scale observability systems during this 26-minute conference talk from KubeCon + CloudNativeCon Europe 2023. Delve into the challenges of managing increasing volumes of observability data and discover how graph concepts can provide a missing link in understanding complex system states. Learn about the application of graph databases like neo4j, AWS Neptune, and Azure Cosmos in mainstream technology. Examine emerging trends in the observability community, including Jaeger service graph, Backstage service catalog, and eBay's Groot tool for root cause analysis. Gain insights into the opportunities and challenges of leveraging graph-based approaches to extract more meaningful answers from observability data, and consider the potential need for an open standard in observability graph modeling.