Taylor, Ryan P. and Cordeiro, Cristovao Jose Domingues and Giordano, Domenico and Hover, John and Kouba, Tomas and Love, Peter Allan and McNab, Andrew and Schovancová, Jaroslava and Sobie, R. (2017) Consolidation of cloud computing in ATLAS. Journal of Physics: Conference Series, 898 (3): 052008. ISSN 1742-6588
Full text not available from this repository.Abstract
Throughout the first half of LHC Run 2, ATLAS cloud computing has undergone a period of consolidation, characterized by building upon previously established systems, with the aim of reducing operational effort, improving robustness, and reaching higher scale. This paper describes the current state of ATLAS cloud computing. Cloud activities are converging on a common contextualization approach for virtual machines, and cloud resources are sharing monitoring and service discovery components. We describe the integration of Vacuum resources, streamlined usage of the Simulation at Point 1 cloud for offline processing, extreme scaling on Amazon compute resources, and procurement of commercial cloud capacity in Europe. Finally, building on the previously established monitoring infrastructure, we have deployed a real-time monitoring and alerting platform which coalesces data from multiple sources, provides flexible visualization via customizable dashboards, and issues alerts and carries out corrective actions in response to problems.