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Grid Workflow Recovery as Dynamic Constraint Satisfaction Problem
Zitatschlüssel Dragiev2009
Autor Stanimir Dragiev and Jörg Schneider
Buchtitel Proceedings of 23. PARS Workshop
Jahr 2009
Adresse Parsberg
Zusammenfassung With service level agreements (SLAs) the Grid broker guarantees to finish the Grid jobs by a given deadline. There are a number of approaches, to plan reservations to fulfil these deadline requirements and to handle currently running jobs in the case of a resource failure. However, there is a lack of strategies to handle the already planned but not yet started jobs. These jobs will be most likely also affected by the resource failure and can be remapped to other resources well in advance. Complex Grid jobs (Grid workflows) consisting of multiple sub-jobs introduce a higher complexity to determine a remapping saving as much Grid jobs as possible. In this paper a recovery scheme for Grid workflows using a dynamic constraint solver is presented and the gain in the number of saved Grid jobs is evaluated using extensive simulations.
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