| Issue |
EPJ Web of Conf.
Volume 295, 2024
26th International Conference on Computing in High Energy and Nuclear Physics (CHEP 2023)
|
|
|---|---|---|
| Article Number | 02013 | |
| Number of page(s) | 9 | |
| Section | Online Computing | |
| DOI | https://doi.org/10.1051/epjconf/202429502013 | |
| Published online | 06 May 2024 | |
https://doi.org/10.1051/epjconf/202429502013
First year of experience with the new operational monitoring tool for data taking in CMS during Run 3
1 CERN, Geneva, Switzerland
2 Rice University, Houston, Texas, USA
3 UCSD, San Diego, California, USA
4 MIT, Cambridge, Massachusetts, USA
5 Vilnius University, Vilnius, Lithuania
* Corresponding author e-mail: Andrea.Petrucci@cern.ch
Published online: 6 May 2024
The Online Monitoring System (OMS) at the Compact Muon Solenoid experiment (CMS) at CERN aggregates and integrates different sources of information into a central place and allows users to view, compare and correlate information. It displays real-time and historical information. The tool is heavily used by run coordinators, trigger experts and shift crews, to ensure the quality and efficiency of data taking. It provides aggregated information for many use cases including data certification. OMS is the successor of Web Based Monitoring (WBM), which was in use during Run 1 and Run 2 of the LHC. WBM started as a small tool and grew substantially over the years so that maintenance became challenging. OMS was developed from scratch following several design ideas: to strictly separate the presentation layer from the data aggregation layer, to use a well-defined standard for the communication between presentation layer and aggregation layer, and to employ widely used frameworks from outside the HEP community. A report on the experience from the operation of OMS for the first year of data taking of Run 3 in 2022 is presented.
© The Authors, published by EDP Sciences, 2024
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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