Rucio : Billion-row scalable and flexible metadata

Rucio produces large amounts of metadata for it’s files and datasets which is stored in a central Rucio server. However there is a fixed set of metadata attributes that can be stored currently. Rucio would like a generic metadata catalogue with no restriction on the kind of metadata stored for the files. The project is to to design and implement a generic and scalable metadata component that integrates with the core transactional model of Rucio.