一种考虑QoS的网格服务匹配模型

Study on Grid Service Matching Based on QoS

网格服务匹配问题包括按功能需求匹配服务和匹配规则,在网格异构的环境下如何进行保证质量的精确服务匹配成为亟待解决的问题。基于上述问题,探讨了在网格服务环境下,一种基于QoS的按需进行服务匹配的技术框架,能够提供较精确的用户需求网格服务和一定的容错能力。阐述了服务匹配,QoS管理,错误管理和资源预约、调度等问题,并给出了原型设计及实现。

Services matching problem in the Grid involves assigning services to tasks in order to satisfy task requirements and service policies. It is critical that service accurately match assuring quality in the Grid. This paper proposes an on-demand service matching technical framework based on QoS, which can accurately find requirement service and definite error tolerance on the internet scale. Then it presents details about service matching, QoS management, error management and resource reservation and scheduling are discussed. We design and implement a system to verify these ideas.