CyberinfraV1, Main, Exploration, bibRecord, 000A92

Middleware Design & Implementation for LSST

Identifieur interne : 000A92 ( Main/Exploration ); précédent : 000A91; suivant : 000A93

Middleware Design & Implementation for LSST

Auteurs : Dave Mills [Allemagne]

Source :

Proceedings of SPIE, the International Society for Optical Engineering [ 0277-786X ] ; 2010.

RBID : Pascal:11-0070241

Descripteurs français

Pascal (Inist)
- Intergiciel, Analyse donnée, Détection panne, Logiciel libre, Système gestion base donnée, Génération automatique, Génération code, Transmission en continu, Structure donnée, Dictionnaire, Temps réel, Traitement transaction, Abstraction, Distribution donnée, Télescope, Transmission donnée, Documentation, Système référence, Consistance, Télémétrie.
Wicri :
- topic : Dictionnaire, Documentation.

English descriptors

KwdEn :
- Abstraction, Automatic generation, Code generation, Consistency, Data analysis, Data distribution, Data structures, Data transmission, Database management systems, Dictionaries, Documentation, Failure detection, Middleware, Open source software, Range finding, Real time, Reference systems, Streaming, Telescopes, Transaction processing.

Abstract

The LSST middleware design is based on a set of software abstractions; which provide standard interfaces for common communications services. The observatory requires communication between many subsystems, and comprehensive archiving of subsystem status data. Control commands as well as health and status data from across the observatory must be stored to support both the science data analysis, and trending analysis for the early detection of hardware anomalies. The Service Abstraction Layer (SAL) is implemented using open source packages that implement open standards of DDS (Data Distribution Service) for data communication and SQL for storage. Designs for the automatic generation of code, documentation, and subsystem simulation, are being developed. Abstractions for the Telemetry datastreams, each with customized data structures, Command/Response, and the Logging and Alert messages are described. The definition of instances of these abstractions is tightly controlled by reference to a system dictionary. All code referencing them is automatically generated and includes real-time consistency checking on a per-transaction basis. All command transactions, telemetry, and messages, are automatically stored in a system wide "Facility Database" system. Virtual Machine technology is used to provide an easily replicated and consistent developer toolset for generating middleware interfaces on a per subsystem basis.

Affiliations:

Allemagne

Links toward previous steps (curation, corpus...)

to stream PascalFrancis, to step Corpus: 000052
to stream PascalFrancis, to step Curation: 000193
to stream PascalFrancis, to step Checkpoint: 000098
to stream Main, to step Merge: 000A97
to stream Main, to step Curation: 000A92

Le document en format XML

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<term>Consistency</term>
<term>Data analysis</term>
<term>Data distribution</term>
<term>Data structures</term>
<term>Data transmission</term>
<term>Database management systems</term>
<term>Dictionaries</term>
<term>Documentation</term>
<term>Failure detection</term>
<term>Middleware</term>
<term>Open source software</term>
<term>Range finding</term>
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<term>Telescopes</term>
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<term>Analyse donnée</term>
<term>Détection panne</term>
<term>Logiciel libre</term>
<term>Système gestion base donnée</term>
<term>Génération automatique</term>
<term>Génération code</term>
<term>Transmission en continu</term>
<term>Structure donnée</term>
<term>Dictionnaire</term>
<term>Temps réel</term>
<term>Traitement transaction</term>
<term>Abstraction</term>
<term>Distribution donnée</term>
<term>Télescope</term>
<term>Transmission donnée</term>
<term>Documentation</term>
<term>Système référence</term>
<term>Consistance</term>
<term>Télémétrie</term>
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<front><div type="abstract" xml:lang="en">The LSST middleware design is based on a set of software abstractions; which provide standard interfaces for common communications services. The observatory requires communication between many subsystems, and comprehensive archiving of subsystem status data. Control commands as well as health and status data from across the observatory must be stored to support both the science data analysis, and trending analysis for the early detection of hardware anomalies. The Service Abstraction Layer (SAL) is implemented using open source packages that implement open standards of DDS (Data Distribution Service) for data communication and SQL for storage. Designs for the automatic generation of code, documentation, and subsystem simulation, are being developed. Abstractions for the Telemetry datastreams, each with customized data structures, Command/Response, and the Logging and Alert messages are described. The definition of instances of these abstractions is tightly controlled by reference to a system dictionary. All code referencing them is automatically generated and includes real-time consistency checking on a per-transaction basis. All command transactions, telemetry, and messages, are automatically stored in a system wide "Facility Database" system. Virtual Machine technology is used to provide an easily replicated and consistent developer toolset for generating middleware interfaces on a per subsystem basis.</div>
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Middleware Design & Implementation for LSST

Middleware Design & Implementation for LSST

Source :

Descripteurs français

English descriptors

Abstract

Links toward previous steps (curation, corpus...)

Le document en format XML

Pour manipuler ce document sous Unix (Dilib)

Pour mettre un lien sur cette page dans le réseau Wicri