Dependable execution of workflow activities on a virtual private grid middleware

  • Authors:

  • A. Machì;F. Collura;S. Lombardo

  • Affiliations:

  • Department of Palermo, ICAR/CNR;Department of Palermo, ICAR/CNR;Department of Palermo, ICAR/CNR

  • Venue:
  • ICCS'05 Proceedings of the 5th international conference on Computational Science - Volume Part III
  • Year:
  • 2005

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Abstract

In this paper we relate QoS management to Workflow management and discuss dependable execution on a middleware layer, named Virtual Private Grid (VPG), of sets of processes performing a workflow activity. We propose two patterns of interaction between a Workflow Management System and the distributed workflow management support. The patterns monitor resource availability & connectivity, and, in case of fault of any resource, ensure job completion by re-mapping a process graph and restarting it. We also describe current implementation of the patterns and of the run-time support.