In this invited, conference talk, Charles will describe the factors that drove him to create Milvus, the world's most popular open-source vector database (measured in github stars). He'll give some background on how the use cases for vector data are different from traditional databases, and how those use cases drove him to design Milvus, an open-source project for unstructured data. The architecture uses "logs as data", is "shared-something", at a high level with four layers that are independent in terms of scalability and disaster recovery.