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7th International Conference on Mobile Data Management (MDM'06)
Activity Scheduling inWeb-Service Based Workflow Management for Balancing Load and Handling Failures
Nara, Japan
May 10-May 12
ISBN: 0-7695-2526-1
Hideyuki Katoh, Tokyo Institute of Technology, Japan
Takashi Kobayashi, Tokyo Institute of Technology, Japan
Haruo Yokota, Tokyo Institute of Technology, Japan
In a workflow management system, appropriate allocation of its activities greatly contributes to the improvement of its efficiency. We have proposed OXTHAS, a loadbalancing method of scheduling the activities in workflow management systems using Web-services. The OXTHAS makes the activities to be assigned to appropriate executors based on the estimation of their processing capacity using execution histories in workflow engines. In this paper, we propose a failure-aware re-scheduling method for the OXTHAS using process time-outs under network and system failures. To allocate activities appropriately, the estimated processing capacity and time-out duration are re-calculated with consideration of the penalty for a failure when a process time-out occurs. We then evaluate the effectiveness of the proposed methods through simulations.
Citation:
Hideyuki Katoh, Takashi Kobayashi, Haruo Yokota, "Activity Scheduling inWeb-Service Based Workflow Management for Balancing Load and Handling Failures," mdm, pp.135, 7th International Conference on Mobile Data Management (MDM'06), 2006
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