JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
TY - UNPB AU - Plötzeneder, B. AU - Mazanec, T. ED - Plötzeneder, Birgit ED - Schaa, Volker RW ED - Štajminger, Ana TI - Grafana and the "archiver cache" - from Machine Status to Facility-Wide Live Data Access J2 - Proc. of PCaPAC2022, Dolní Brežany, Czech Republic, 04-07 October 2022 CY - Dolní Brežany, Czech Republic T2 - International Workshop on Emerging Technologies and Scientific Facilities Controls T3 - 13 LA - english AB - The Control & DAQ systems of ELI Beamlines store data inside a Cassandra cluster, and traditionally provide access and visualization via standard CS GUIs and archiver tools. In 2020, motivated by the increasing operational demands of a maturing facility, we started to develop a concept which was initially only intended as a machine-status website to expose some of this data live. Responding to wildly diverging stakeholder feedback, this evolved into a new layer for rapid data access (’archiver cache’), based on InfluxDB, with Grafana as a frontend. Fully operational since 2021, this stack has become a powerful and heavily used tool for operations, and is continuously extended to include auxiliary data sources beyond CS (building management, IT monitoring, cleanroom…). In 2022, over 25000 metrics are available live and updated every 3-5 seconds, with a latency of less than 5 seconds. This contribution describes the background, architectural drivers, system design and implementation, lessons learned, and considerations for the future. PB - JACoW Publishing CP - Geneva, Switzerland ER -