A QoS-based WSRF Service Scheduling Mechanism in Spatial Data Grid | |
Wu, Xi ; Fang, Yu ; Chen, Bin ; Huang, Zhou | |
2009 | |
关键词 | QoS Spatial Data Grid WSRF service scheduling mechanism |
英文摘要 | Spatial Data Grid is an ideal environment to handle the data-intensive and computing-intensive geo-spatial processes. In this heterogeneous and distributed environment, the requirements of service scheduling are dynamic and diverse. Therefore, an appropriate scheduling mechanism should be adopted, which would be able to deal with the resources properties of a grid environment, such as the data size, network capabilities, and the capabilities of processors, and meet the need of specific GIS (Geographic Information System) applications. This paper proposes a scheduling mechanism based on utility of Quality of Service (QoS). And, this scheduling mechanism, wrapped into a standard WSRF service, provides a transparent way to select the appropriate spatial data service providers in a dynamic spatial data grid and hides the complexity of the scheduling strategy from users to coordinate those required services. Experiments show that our scheduling mechanism can provide services selection and performance guarantees and lead to better spatial resource sharing and significant service performance.; Computer Science, Hardware & Architecture; Computer Science, Information Systems; Optics; EI; CPCI-S(ISTP); 0 |
语种 | 英语 |
DOI标识 | 10.1117/12.813182 |
内容类型 | 其他 |
源URL | [http://ir.pku.edu.cn/handle/20.500.11897/311997] ![]() |
专题 | 地球与空间科学学院 |
推荐引用方式 GB/T 7714 | Wu, Xi,Fang, Yu,Chen, Bin,et al. A QoS-based WSRF Service Scheduling Mechanism in Spatial Data Grid. 2009-01-01. |
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