Abstract
A new bookkeeping system called Jiskefet is being developed for A Large Ion Collider Experiment (ALICE) during Long Shutdown 2, to be in production until the end of LHC Run 4 (2029). Jiskefet unifies two functionalities: a) gathering, storing and presenting metadata associated with the operations of the ALICE experiment and b) tracking the asynchronous processing of the physics data. It will replace the existing ALICE Electronic Logbook and AliMonitor, allowing for a technology refresh and the inclusion of new features based on the experience collected during Run 1 and Run 2. The front end leverages web technologies much in use nowadays such as TypeScript and NodeJS and is adaptive to various clients such as tablets, mobile devices and other screens. The back end includes an OpenAPI specification based REST API and a relational database. This paper will describe the organization of the work done by various student teams who work on Jiskefet in sequential and parallel semesters and how continuity is guaranteed by using guidelines on coding, documentation and development. It will also describe the current status of the development, the initial experience in detector stand-alone commissioning setups and the future plans.
Highlights
During the LHC Long Shutdown 2 a renewal of the bookkeeping systems in place for ALICE is envisioned
At the start of the ALICE operations in 2007 a bookkeeping system was developed and it evolved with time during the LHC data-taking periods Run 1 (2009-2013) and Run 2 (20152018) following the users needs
The Data Preparation Group, Physics Working Groups and ALICE physicists are the main users of AliMonitor
Summary
During the LHC Long Shutdown 2 a renewal of the bookkeeping systems in place for ALICE is envisioned. At the start of the ALICE operations in 2007 a bookkeeping system was developed and it evolved with time during the LHC data-taking periods Run 1 (2009-2013) and Run 2 (20152018) following the users needs. This system was based on the LAMP The Data Preparation Group, Physics Working Groups and ALICE physicists are the main users of AliMonitor. Since its deployment it has stored 12.9 million jobs, i.e. specified activities on data, amounting to 97 GB data. We finish with the current status, discussion, future work and conclusions
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