Queuing-based capacity planning approach for Web service workflows using optimization algorithms

Queuing-based capacity planning approach for Web service workflows using optimization algorithms
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使用优化算法的基于队列的 Web 服务工作流容量规划方法

DOI:
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发表时间:
2008
期刊:
IEEE International Conference on Digital Ecosystems and Technologies
影响因子:
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通讯作者:
Ralf Steinmetz
Ralf Steinmetz
中科院分区:
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文献类型:
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作者:
J. Eckert;Stefan Schulte;N. Repp;R. Berbner;Ralf Steinmetz

文献摘要

被引文献

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数字生态系统中面向服务的工作流面临的一个主要挑战是跨组织Web服务工作流的容量规划,以避免性能下降。为了分析Web服务工作流的执行能力和规划工作流控制,可以使用排队论来描述工作流的平均性能行为。通过解决Web服务工作流的容量规划问题,资源的使用变得越来越重要。容量规划和性能度量对于确保工作流执行仍然可行和避免由于过载而导致的SLA违反至关重要。因此,本文提出了一种基于排队论的Web服务工作流容量规划方法,以支持容量规划决策。此外,我们还描述了一种优化算法,该算法如何以最小的成本实现对所调用Web服务的最佳利用。
One major challenge for service-oriented workflows in digital ecosystems is capacity planning for cross-organizational Web service workflows in order to avoid performance degradation. In order to analyze the execution capacity of Web service workflows and to plan the workflow control, queuing theory can be used to describe the average performance behavior of a workflow. By addressing capacity planning of Web service workflows, resource usage becomes more and more important. Capacity planning and performance measurement are crucial to ensure that the workflow execution remains feasible and SLA violations due to overload are avoided. Thus, this paper presents a capacity planning approach for Web service workflows based on queuing theory to support capacity planning decisions. Further we describe an optimization algorithm how to achieve an optimal utilization of the invoked Web services at minimal costs.