一种基于虚拟工作空间的有状态网格服务副本复制方法  

A Replica Creation Approach of Grid Service with State Based on Virtual Workshop

作　　者：宋宝燕[1] 李旭峰[1] 奚丽娜[1] 毛艳英[1] 申德荣[2] 于戈[2] 

机构地区：[1]辽宁大学信息科学与技术学院,辽宁沈阳110036 [2]东北大学信息科学与工程学院,辽宁沈阳110004

出　　处：《电子学报》2008年第10期1949-1954,共6页Acta Electronica Sinica

基　　金：国家自然科学基金(No.60873068,60673139,60703068);辽宁省教育厅高等学校科研项目计划(No.20060349);沈阳市科学技术计划项目(No.1063305-1-00(061833))

摘　　要：网格副本复制技术只能对无状态的数据、文件资源等进行复制,而不能对网格服务这种包含软硬件需求、有状态的服务形式进行复制.为解决网格服务的访问瓶颈、负载均衡等问题,本文提出一种基于虚拟工作空间的有状态网格服务副本复制方法Ragsres.Ragsres利用虚拟工作空间良好的执行分离属性和对执行环境可定制化的特性,实现对网格服务运行所需的软硬件环境的搭建和复制;根据虚拟机监控快照技术的数据转换原理,完成网格服务内存状态的复制;采用web服务的有状态资源模拟技术,实现有状态资源的状态复制.The replica creation technology of Grid can not replicate Grid Services which are with state and include software and hardware requirements, while only replicate datum and file resources which are no state.Aiming at resolving the question such as accessing bottleneck,load balance of Grid Service, we advise a replica creation approach of Grid Service with state based on Virtual Workshop called Ragsres. Ragsres implements the replication of software and hardware environment using customized trait and well executing separation attribute of Virtual Workshop. It accomplishes the replication of Grid service memory state based the snapshot of Virtual Machine Monitor. The approach realizes the replication of resources with state, which adopting modeling technology of Web service.

关 键 词：网格服务 虚拟工作空间 虚拟机监控 副本复制 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]