【摘要】 网格具有异构性、动态性、自治性和分布性等特点,分布式体系结构下的事务模型已不能适应网格环境下事务管理的需求。本文在分析网格事务处理的特点与目前研究现状的基础上,基于开放网格体系结构(OGSA)和Web服务资源框架(WSRF),提出一个适应于网格环境下的数据库事务模型。该模型主要包括协调者事务和参加者事务,能满足网格的动态性和可扩展性。模拟实验证明该模型在动态、面向服务的环境下是可行的、有效的。更多还原

【Abstract】 Because the grid is of heterogeneity,dynamics,autonomy and distribution,the traditional distributed transaction model is not suited to the needs of the grid transaction management. In this paper,the characteristics of grid transaction processing and the present research is analyzed,and then a transaction model for grid database based on the Open Grid Services Architecture(OGSA) and Web Service Resource Framework(WSRF) is proposed. This model includes coordinator transaction and participant transaction,and can satisfy the dynamic and expanding characteristics for grid. The simulation experiments show that the model is feasible and effective under the dynamic and service-oriented environment.更多还原