TY - JOUR
T1 - Middleware Adaptation with the Delphoi Service
AU - Maassen, J.
AU - van Nieuwpoort, R.V.
AU - Kielmann, T.
AU - Verstoep, K.
AU - Burger, M.
PY - 2006
Y1 - 2006
N2 - Grid middleware needs to adapt to changing resources for a large variety of operations. Currently, however, there is only low-level information available about Grid resources, coming from various but functionally isolated monitoring and information systems. In this paper, we present the Delphoi service. It provides a unified interface to the necessary information, and also matches the abstraction level needed by middleware services to adapt their behavior. We describe Delphoi's architecture, the information it provides, and we evaluate the quality of its performance information. Delphoi has been developed as part of the EC-funded GridLab project and is currently being deployed on the project's testbed for adding adaptivity to GridLab's middleware services. Copyright © 2006 John Wiley & Sons, Ltd.
AB - Grid middleware needs to adapt to changing resources for a large variety of operations. Currently, however, there is only low-level information available about Grid resources, coming from various but functionally isolated monitoring and information systems. In this paper, we present the Delphoi service. It provides a unified interface to the necessary information, and also matches the abstraction level needed by middleware services to adapt their behavior. We describe Delphoi's architecture, the information it provides, and we evaluate the quality of its performance information. Delphoi has been developed as part of the EC-funded GridLab project and is currently being deployed on the project's testbed for adding adaptivity to GridLab's middleware services. Copyright © 2006 John Wiley & Sons, Ltd.
U2 - 10.1002/cpe.1022
DO - 10.1002/cpe.1022
M3 - Article
SN - 1532-0626
VL - 18
SP - 1659
EP - 1679
JO - Concurrency and Computation: Practice and Experience
JF - Concurrency and Computation: Practice and Experience
IS - 13
ER -