摘要
云计算技术迅猛发展,众多云服务的功能和服务质量有所不同。针对这种情况,提出一种服务权重计算方法。算法通过分析组合服务和原子服务的关系,结合服务实例的可靠性、新鲜度和负载度,计算服务实例权重值并排行,获得最优实例提供服务。数据分析和仿真实验表明,算法有效选择当前最优服务实例,提高云平台的可用性、效率和鲁棒性。
Cloud computing technology is developing rapidly,various functions and qualities of cloud services differ from each other. In view of this,we propose a service weight computation algorithm. The algorithm computes and ranks the weight of service instances by analysing the relationship of atom service and composition service and combining with reliability,novelty and load degree of service instances to obtain best instance for providing service. Data analysis and simulation experiment all show that the algorithm can pick up optimal current service instance,and promote cloud platform＇s high availability,efficiency and robustness.
出处
《计算机应用与软件》
CSCD
2016年第3期38-42,共5页
Computer Applications and Software
关键词
云计算
服务组合
权重计算
搜索
Cloud computing
Service composition
Weight computation
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