CERN Accelerating science

ATLAS Note
Report number ATL-SOFT-PROC-2023-041
Title Evolution of the ATLAS CREST conditions DB project
Author(s) Mineev, Mikhail (Joint Inst. for Nuclear Research (RU)) ; Formica, Andrea (Université Paris-Saclay (FR)) ; Ozturk, Nurcan (University of Texas at Arlington (US)) ; Roe, Shaun (CERN) ; Tsulaia, Vakhtang (Lawrence Berkeley National Lab. (US)) ; Vogel, Marcelo (University of Texas at Arlington (US)) ; Alexandrov, Evgeny (Joint Institute for Nuclear Research (RU))
Corporate Author(s) The ATLAS collaboration
Collaboration ATLAS Collaboration
Publication 2024
Imprint 21 Sep 2023
Number of pages 5
In: Phys. Part. Nucl. 55 (2024) 441-443
In: 10th International Conference "Distributed Computing and Grid Technologies in Science and Education", Dubna, Ru, 3 - 7 Jul 2023, pp.441-443
DOI 10.1134/S1063779624030067
Subject category Particle Physics - Experiment
Accelerator/Facility, Experiment CERN LHC ; ATLAS
Free keywords ATLAS, conditions data, CREST
Abstract The CREST project is a new realization of the conditions DB with the REST API and JSON support for the ATLAS experiment. This project allows to simplify the conditions data structure and to optimize the data access. The CREST development requires not only the client C++ library (CrestApi) but also the various tools for testing software and validating data. A command line client realizes a quick access to the stored data. A set of the utilities was used to make a dump of the data from CREST to the file system and to test the client library and the CREST server using the dummy data. Now CREST software is being tested using the real conditions data converted with the COOL to CREST converter. The Athena code (ATLAS event processing software framework) was modified to operate with the new conditions data source.

Corresponding record in: Inspire


 Record created 2023-09-21, last modified 2024-06-14