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Introducing high performance distributed logging service for ACS
Indexado
Scopus SCOPUS_ID:77956143989
DOI 10.1117/12.857289
Año 2010
Tipo

Citas Totales

Autores Afiliación Chile

Instituciones Chile

% Participación
Internacional

Autores
Afiliación Extranjera

Instituciones
Extranjeras


Abstract



The ALMA Common Software (ACS) is a software framework that provides the infrastructure for the Atacama Large Millimeter Array and other projects. ACS, based on CORBA, offers basic services and common design patterns for distributed software. Every properly built system needs to be able to log status and error information. Logging in a single computer scenario can be as easy as using fprintf statements. However, in a distributed system, it must provide a way to centralize all logging data in a single place without overloading the network nor complicating the applications. ACS provides a complete logging service infrastructure in which every log has an associated priority and timestamp, allowing filtering at different levels of the system (application, service and clients). Currently the ACS logging service uses an implementation of the CORBA Telecom Log Service in a customized way, using only a minimal subset of the features provided by the standard. The most relevant feature used by ACS is the ability to treat the logs as event data that gets distributed over the network in a publisher-subscriber paradigm. For this purpose the CORBA Notification Service, which is resource intensive, is used. On the other hand, the Data Distribution Service (DDS) provides an alternative standard for publisher-subscriber communication for real-time systems, offering better performance and featuring decentralized message processing. The current document describes how the new high performance logging service of ACS has been modeled and developed using DDS, replacing the Telecom Log Service. Benefits and drawbacks are analyzed. A benchmark is presented comparing the differences between the implementations. © 2010 SPIE.

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Disciplinas de Investigación



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Scopus
Computer Science Applications
Electrical And Electronic Engineering
Electronic, Optical And Magnetic Materials
Applied Mathematics
Condensed Matter Physics
SciELO
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Publicaciones WoS (Ediciones: ISSHP, ISTP, AHCI, SSCI, SCI), Scopus, SciELO Chile.

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Autores - Afiliación



Ord. Autor Género Institución - País
1 Avarias, Jorge A. Hombre National Radio Astronomy Observatory Socorro - Estados Unidos
2 Lopez, Joao S. - Universidad Técnica Federico Santa María - Chile
3 MAUREIRA-FREDES, CRISTIAN DANILO Hombre Universidad Técnica Federico Santa María - Chile
4 Sommer, Heiko Hombre Observatorio Europeo Austral - Alemania
5 Chiozzi, Gianluca Hombre Observatorio Europeo Austral - Alemania

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