Nov 4 – 8, 2019
Adelaide Convention Centre
Australia/Adelaide timezone

Evolution of the WLCG Information Infrastructure

Nov 7, 2019, 2:15 PM
Riverbank R3 (Adelaide Convention Centre)

Riverbank R3

Adelaide Convention Centre

Oral Track 3 – Middleware and Distributed Computing Track 3 – Middleware and Distributed Computing


Julia Andreeva (CERN)


The WLCG project aimed to develop, build, and maintain a global computing facility for storage and analysis of the LHC data. While currently most of the LHC computing resources are being provided by the classical grid sites, over last years the LHC experiments have been using more and more public clouds and HPCs, and this trend will certainly increase. The heterogeneity of the LHC computing resources is not limited to the procurement mode. It also implies variety of storage solutions and types of computer architecture which represent new challenges for the topology and configuration description of the LHC computing resources. The WLCG Information infrastructure has to evolve in order to meet these challenges and to be flexible enough to follow technology innovation. It should provide a complete and reliable description of all types of the storage and computing resources to ensure their effective use. This implies changes at all levels, starting from the primary information providers, through data publishing, transportation mechanism and central aggregators. The contribution describes proposed changes in the WLCG Information infrastructure, their implementation and deployment.

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Primary authors

Julia Andreeva (CERN) Alessandro Di Girolamo (CERN) Alessandra Forti (University of Manchester (GB)) Alexey Anisenkov (Budker Institute of Nuclear Physics (RU)) Andrew McNab (University of Manchester)

Presentation materials