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Title: The ATLAS Event Index: The Architecture of the Core Engine

Journal Article · · Journal of Physics. Conference Series
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  1. Universita di Genova and INFN Sezione di Genova (Italy)
  2. European Organization for Nuclear Research (CERN), Meyrin (Switzerland)
  3. Linear Accelerator Laboratory, Orsay (France)
  4. Federico Santa Maria Technical University Valparaiso, Region de Valparaiso (Chile)

The global view of the ATLAS Event Index system has been presented in the 17th ACAT Conference. This article concentrates on the architecture of the system core component. This component handles the final stage of the event metadata import. It organizes its storage and provides a fast and feature-rich access to all information. A user is able to interrogate metadata in various ways, including by executing user-provided code on the data to make selections and to interpret the results. A wide spectrum of clients is available, from a set of Linux-like commands to an interactive graphical Web Service. The stored event metadata contain the basic description of the related events, the references to the experiment event storage and the full trigger record and can be extended with other event characteristics. Derived collections of events can be created. Such collections can be annotated and tagged with further information.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Organization:
USDOE Office of Science (SC)
Contributing Organization:
ATLAS Collaboration
OSTI ID:
1544184
Journal Information:
Journal of Physics. Conference Series, Vol. 1085; ISSN 1742-6588
Publisher:
IOP PublishingCopyright Statement
Country of Publication:
United States
Language:
English

References (1)

CERN single sign on solution journal July 2008

Figures / Tables (4)