Speaker
Description
The ALICE experiment at CERN's Large Hadron Collider benefited from a major upgrade during the Long Shutdown 2 (2018 - 2022) which will generate up to 27 Tb/s of data from the detectors during the Runs 3 and 4. The update includes a redesign of the computational system, now named O2 (Online-Offline) and a new suite of web application GUIs which will be used by multiple teams and operators in the control room of the experiment 24 hours a day. Thus the new GUI suite includes a new tool named Bookkeeping, whose main purpose is to keep track of the experiment and provide a history state of the system at any point in time.
Bookkeeping allows users to manually insert system updates which then can be filtered and retrieved to quickly access the information they are looking for. Moreover, it provides the means to other systems to enable them to automatically store and retrieve data. Based on the input, it builds global and individual statistics about the system performances which in turn helps improving the overall efficiency of the experiment.
The provided UI and API use modern web technologies and are based on a shared web framework developed in-house, to ensure the application is robust enough to fill the needs of Run 3 and Run 4 while being easily maintained and enhanced.
This presentation describes the Bookkeeping functionalities, the purpose they serve and the means that have been put in place to fulfill them.
