Improving Availability and Performance of the Event Metadata System for the BM@N Experiment

Event indexing, or event metadata systems are common for particle physics experiments. Their main goal is to keep a searchable catalogue of physics events, a subset of which can be retrieved based on given filtering criteria. The Event Metadata System (EMS) of the BM@N experiment has been previously designed, developed and deployed and is being improved now to increase its performance, convenience for users, as well as fault tolerance. In this paper, the architecture of the current version of the BM@N EMS is reviewed and some recent improvements that have been applied are presented.