Study of NoSQL technologies for the CMS Conditions Data

References [1] CMS experience with online and offline databases A. Pfeiffer et al., J.Phys.Conf.Ser. 396 (2012) 052059 2014 Introduction CMS (Compact Muon Solenoid) is an experiment at the LHC at CERN, with the goal to answer the most fundamental questions about the universe, with the essential help of several fields of computer science. The CMS Physics, Software & Computing Group, Computing Operations section (CMG-CO) plays a main role in the development and maintance of the complex infrastructure for managing the detector’s Alignment and Calibration constants („conditions”). This data is essential for the analysis and reconstruction of the recorded data.