Developing a Microservices Architecture for Online Monitoring of MPD Experiment Data at the NICA Collider

Abstract Modern experiments in high-energy physics are characterized by large volumes of data, requiring efficient methods of online processing and analysis. The Multi-Purpose Detector (MPD) experiment at the Nuclotron-based Ion Collider fAcility (NICA) is a state-of-the-art international high-energy physics experiment at the Joint Institute for Nuclear Research (JINR) and is scheduled to start in 2026. To operate the experiment, it is necessary to develop a monitoring system to control data from all detector subsystems (event display). To operate the event display, it is necessary to pre-process the data stream from the detectors in online mode. The implementation of this task requires the use of modern methods of parallel and distributed computing. The article presents the implementation of such a system based on microservice architecture for the MPD experiment.