CRIC: a unified information system for WLCG and beyond

Abstract

The Worldwide LHC Computing Grid (WLCG) is an innovative distributed environment which is deployed through the use of grid computing technologiesin order to provide computing and storage resources to the LHC experimentsfor data processing and physics analysis. Following increasing demands of LHC computing needs toward high luminosity era, the experiments are engagdin an ambitious program to extend the capability of WLCG distributed environment, for instance including opportunistically used resources such as High-Performance Computers (HPCs), cloud platforms and volunteer computer. norder to be effectively used by the LHC experiments, all these diverse distributed resources should be described in detail. This implies easy service discovery of shared physical resources, detailed description of service configurations and experiment-specific data structures is needed. In this contribution, we present a high-level information component of a distributed computing environment, the Computing Resource Information Catalogue (CRIC) which aims to facilitate distributed computing operations for the LHC experiments and consolidate WLCG topology information. In addition, CRIC performs data validation and provides coherent view and topology descriptinto the LHC VOs for service discovery and configuration. CRIC represents teevolution of ATLAS Grid Information System (AGIS) into the common experiment independent high-level information framework. CRIC’s mission is to serve not just ATLAS Collaboration needs for the description of the distributed environment but any other virtual organization relying on large scale distributed infrastructure as well as the WLCG on the global scope. The contribution describes CRIC architecture, implementation of data model,collectors, user interfaces, advanced authentication and access control components of the system.

Preparing for the next WLCG Network Data Challenge: Site Network Monitoring

“…• Utilize the WLCG CRIC (Computing Resource Information Catalogue) [5] as the mechanism to publish the site network information…”

ESCAPE Data Lake

“…Finally, the interoperability of the Data Lake services is ensured by the Compute Resources Information Catalog (CRIC) [27], a central catalogue containing services information and configuration for Rucio, e.g. supported protocols at sites and their prioritisation.…”

Grid Information Systems: Past, Present and Future

“…Provide a centralised service discovery system along with a single system for experiment annotation and configuration. This is currently a direction that is already underway with the development of the Computing Resource Information Catalog (CRIC) service [22].…”