CERN VM-FS: Software distribution made easy

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What is it?

CERN Virtual Machine File System (CERN VM-FS) is a web-based, global versioning file system optimised for software distribution. The file system content is installed on a central web server from where it can be mirrored and cached by other web servers and web proxies. File system clients download data and meta-data on demand and cache them locally. Data integrity and authenticity is ensured by cryptographic hashes and digital signatures.

Market data analysis use case

Jumptrading, a leading international quantitative research company uses this open-source software for small file distribution and accessing market data archives. In 2022, CERN and Jumptrading began investigating together how the speed and scalability of the CERNVM-FS software can be improved, benefitting the wider open-source community using the software.