Moving the California distributed CMS xcache from bare metal into containers using Kubernetes [article]

Edgar Fajardo, Matevz Tadel, Justas Balcas, Alja Tadel, Frank Wuerthwein, Diego Davila, Jonathan Guiang, Igor Sfiligoi
2020 arXiv   pre-print
The University of California system has excellent networking between all of its campuses as well as a number of other Universities in CA, including Caltech, most of them being connected at 100 Gbps. UCSD and Caltech have thus joined their disk systems into a single logical xcache system, with worker nodes from both sites accessing data from disks at either site. This setup has been in place for a couple years now and has shown to work very well. Coherently managing nodes at multiple physical
more » ... ations has however not been trivial, and we have been looking for ways to improve operations. With the Pacific Research Platform (PRP) now providing a Kubernetes resource pool spanning resources in the science DMZs of all the UC campuses, we have recently migrated the xcache services from being hosted bare-metal into containers. This paper presents our experience in both migrating to and operating in the new environment.
arXiv:2003.02319v1 fatcat:6236oblqendjzmxunwgqoxeuvy