Software Distribution allows Research Communities and Infrastructures to deploy software on worldwide- distributed computing infrastructures used to run data processing applications.
Overview
Software Distribution
Software Distribution is based on the well-known CernVM-File System (CernVM-FS), providing a scalable, reliable and low- maintenance software distribution service. It was developed to assist High Energy Physics (HEP) collaborations to deploy software on the worldwide- distributed computing infrastructure used to run data processing applications. CernVM-FS is implemented as a POSIX read-only file system in user space (a FUSE module). Files and directories are hosted on standard web servers and mounted in the universal namespace /cvmfs.
Software usually comprises many small files that are frequently opened and read as a whole. Furthermore, software includes frequent look-ups for files in multiple directories when search paths are examined. Through aggressive caching and reduction of latency, CernVM-FS facilitates deployment of the software, necessary to process experiment data, on distributed computing infrastructures. It replaces package managers and shared software areas on cluster file systems.
Main features
- Allows centrally managed software distribution across federated environments
- Allows to make content available as a read-only file system that efficiently downloads and caches files on demand
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