Evolving self-adaptive services using planning-based reflective middleware

Eliassen, Frank; Gjørven, Eli; Eide, Viktor S. Wold; Michaelsen, Jørgen Andreas

doi:10.1145/1175855.1175856

Cited by 12 publications

(8 citation statements)

References 5 publications

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“…The QuA middleware [1] supports planning-based adaptation, which means that applications are specified by their behavior, and are planned, instantiated, and maintained by the middleware in such a way that the behavioral requirements are satisfied throughout the application life-time.…”

Section: Foundations Of the Qua Planning Middlewarementioning

confidence: 99%

“…The three resulting key-bases are QuA-capsule, QuA-capsule:Java 1 1 The ":" delimiter is placed between type and property for readability, and is not supposed to be there following the definition of the form of key-bases given above.…”

Section: Mapping Of Service Mirrors To Nodesmentioning

confidence: 99%

“…We present the design of a resource broker based on a P2P infrastructure, and describe how this broker is used by our planning-based adaptation middleware QuA [1]. In the QuA middleware, adaptation is driven by metadata associated to services (e.g., service performance or cost).…”

Section: Introductionmentioning

confidence: 99%

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Brokering Planning Metadata in a P2P Environment

Oudenstad

Rouvoy

Eliassen

et al. 2008

Distributed Applications and Interoperable Systems

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Abstract. In self-adaptive systems, metadata about resources in the system (e.g., services, nodes) must be dynamically published, updated, and discarded. Current adaptive middleware approaches use statically configured, centralized repositories for storing and retrieving of such metadata. In peer-to-peer (P2P) environments, we can not assume the existence of server nodes that are always available for hosting such centralized services. However, the metadata repository is the keystone of the adaptation middleware and the consistency of adaptations relies on its reliability.To address this limitation in our QuA planning-based adaptation middleware, we introduce a P2P broker, which is a metadata advertisement service based on P2P technology. This P2P broker can be plugged into the QuA middleware to support the construction of self-adaptive applications in a P2P environment. We use a structured P2P protocol that distributes the service metadata over a set of nodes based on service type and property information. The P2P broker is therefore capable of handling node failures by providing replication of the metadata. We present a working prototype of the P2P broker as well as results from initial experiments. These results show that the metadata distributes well over the nodes in the network, thus enabling scalability and robustness to node failures.

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Section: Foundations Of the Qua Planning Middlewarementioning

confidence: 99%

Section: Mapping Of Service Mirrors To Nodesmentioning

confidence: 99%

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Brokering Planning Metadata in a P2P Environment

Oudenstad

Rouvoy

Eliassen

et al. 2008

Distributed Applications and Interoperable Systems

Self Cite

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show abstract

“…The QuA middleware [5] supports planning-based adaptation, which means that applications are specified by their behavior, and planned, instantiated, and maintained by the middleware in such a way that the behavioural requirements are satisfied throughout the application life-time.…”

Section: The Qua Middlewarementioning

confidence: 99%

“…as they become available in the network. We have developed a resource broker based on a P2P infrastructure, which is used by our planning-based adaptation middleware QuA [5]. In the QuA middleware, adaptation is driven by metadata associated to services (e.g., service performance or cost).…”

Section: Introductionmentioning

confidence: 99%

Peer-to-peer brokering of planning meta-data

Oudenstad

Eliassen

Gjørven

et al. 2007

Proceedings of the 6th International Workshop on Adaptive and Reflective Middleware: Held at the ACM/IFIP/USENIX International

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In self-adaptive systems, metadata about resources in the system (e.g., services, nodes) must be dynamically published, updated, and removed. Current middleware approaches use statically configured, centralised repositories for storing and retrieving of such metadata. However, in the context of peer-to-peer (P2P) environments, we can not assume the existence of server nodes that are always available for hosting such centralised services.Thus, in our planning-based adaptation middleware, we introduce a P2P broker, which is a metadata advertisement service based on P2P technology. We use a structured P2P protocol that distributes the service metadata over a set of nodes based on service type and property information. Initial experiments show that the metadata distributes well over the nodes in the network, thus enabling scalability and robustness to node failures. KeywordsPeer-to-peer systems, resource brokering, self-adaptive middleware, service planning.

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Meta Reconfiguration of Adaptive Middleware Using Semantic Web and Context Information

Lobato¹

2011

2011 IEEE 35th Annual Computer Software and Applications Conference

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Evolving self-adaptive services using planning-based reflective middleware

Cited by 12 publications

References 5 publications

Brokering Planning Metadata in a P2P Environment

Brokering Planning Metadata in a P2P Environment

Peer-to-peer brokering of planning meta-data

Meta Reconfiguration of Adaptive Middleware Using Semantic Web and Context Information

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