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Scheduling method for cloud service workflow

A scheduling method and workflow technology, applied in the field of cloud computing, can solve the problem of providing services to users without considering the service availability interval

Active Publication Date: 2015-07-15
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these methods do not take into account constraints such as the service is provided to the user in the form of an available range, and the user's trust requirements for the service.

Method used

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  • Scheduling method for cloud service workflow
  • Scheduling method for cloud service workflow
  • Scheduling method for cloud service workflow

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Embodiment Construction

[0038] The technical solution of the present invention will be described in detail below in conjunction with the drawings:

[0039] The cloud service system architecture applicable to the present invention is as follows figure 1 As shown, including cloud service providers, cloud service trust management systems, cloud service agents, users, workflow schedulers and candidate service pools, the present invention relates to workflow schedulers and candidate service pools. In this embodiment, it is assumed that the cloud service provider registers its own service with the cloud service agent, the cloud service agent submits the registered service to the cloud service trust management system for analysis, and the result is returned to the cloud service agent, and the user Submit your own workflow application and service quality constraints to cloud service agents. The cloud service agent submits the workflow application to the workflow scheduler, and the workflow scheduler selects th...

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Abstract

The invention discloses a scheduling method for a cloud service workflow and belongs to the technical field of cloud computation. The scheduling method disclosed by the invention comprises the following steps of step A, sequentially allocating feasible services for all tasks in the workflow according to a rule that cost means of the tasks are minimized to obtain an initial scheduling scheme of the workflow, wherein the cost mean of any one task is determined according to the following method that one task selects one feasible service; immediate successor tasks of the task respectively select feasible services with minimum costs, and a mean value of costs of the services selected by the task and the immediate successor tasks of the task is a cost mean of the task; step B, by taking meeting of the default trust requirement and the workflow deadline requirement as constraint conditions and a least rental fee as an objective, adjusting an initial scheduling scheme to obtain a final workflow scheduling scheme. According to the scheduling method disclosed by the invention, the least service rental fee is realized while the service trust, an available service range and the constraint of the workflow deadline are met.

Description

Technical field [0001] The invention relates to a cloud service workflow scheduling method, which belongs to the technical field of cloud computing. Background technique [0002] Cloud computing is a new market-oriented business model aimed at providing high-quality and low-cost information services. Cloud computing can access a configurable computing resource sharing pool in a convenient and on-demand manner through the network. However, cloud computing is currently facing severe security issues. Trust is an important security alternative in the distributed Internet environment ([Blaze M., Feigenbaum J., Lacy J. Decentralized trust management[C]. Proceedings of the 17th Symposium on Security and Privacy. Oakland, CA: IEEE Computer Society Press, May 6-8.1996: 164-173.], [James Urquhart. The Biggest Cloud-Computing Issue of 2009 is Trust [EB / OL]. (2009-06-01) http: / / www.cnet.com / news / the-biggest-cloud-computing-issue-of-2009-is-trust]). Trust mechanisms have been studied in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F9/46
Inventor 李小平丁涛勇朱夏陈龙胡苇
Owner SOUTHEAST UNIV
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