A Log Service Package for the ATLAS TDAQ/DCS Group

Author

Murillo-Garcia, R. ; Miotto, G. Lehmann

Author_Institution

CERN, Geneva

Volume

54

Issue

1

fYear

2007

Firstpage

202

Lastpage

207

Abstract

This paper introduces the Log Service, developed at CERN within the ATLAS TDAQ/DCS framework. This package remedies the long standing problem of centralizing log messages produced by TDAQ applications in order to ease later access and maintenance. One or multiple Log Servers form the system´s archival container, based on the MySQL database engine. A C++ interface is provided to access the Log Servers in a transparent manner. Furthermore, a user-friendly web-based tool intended for developers is available to easily browse and/or remove Log Messages. The outline of these software components are herein explained. Performance testing has been conducted within a controllable environment to observe the behaviour of the Log Service

Keywords

C++ language; Internet; SQL; data acquisition; high energy physics instrumentation computing; human computer interaction; object-oriented programming; position sensitive particle detectors; query formulation; ATLAS TDAQ-DCS framework; C++ interface; CERN; MySQL database engine; archival container; log messages; log service package; software components; user-friendly web-based tool; Computer errors; Containers; Data acquisition; Distributed control; Distributed databases; Engines; Information retrieval; Large Hadron Collider; Packaging; Testing; ATLAS; MySQL; databases; distributed; log service;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/TNS.2006.888741

Filename

4089174