Data Bookkeeping Service 3 _ Providing event metadata in CMS

20th International Conference on Computing in High Energy and Nuclear Physics

物理学;计算机科学

Giffels, M.^1 ; Guo, Y.^2 ; Riley, D.^3

PH-CMG-CO. CERN, Geneve 23

CH-1211, Switzerland^1

Fermi National Accelerator Laboratory, Batavia

IL

60510, United States^2

Cornell University, Ithaca

NY, United States^3

关键词: Compact Muon solenoids;    Large Hadron collider LHC;    Physics analysis;    Processing history;    Workload management;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/513/4/042022/pdf
DOI  :  10.1088/1742-6596/513/4/042022

学科分类：计算机科学（综合）

来源: IOP

【 摘 要 】

The Data Bookkeeping Service 3 provides a catalog of event metadata for Monte Carlo and recorded data of the Compact Muon Solenoid (CMS) experiment at the Large Hadron Collider (LHC) at CERN, Geneva. It comprises all necessary information for tracking datasets, their processing history and associations between runs, files and datasets, on a large scale of about 200, 000 datasets and more than 40 million files, which adds up in around 700 GB of metadata. The DBS is an essential part of the CMS Data Management and Workload Management (DMWM) systems [1], all kind of data-processing like Monte Carlo production, processing of recorded event data as well as physics analysis done by the users are heavily relying on the information stored in DBS.