A real-time transaction service for grid computing  

作　　者：唐飞龙 LiMinglu JoshuaHuangZhexue FrankTong CaoJian 

机构地区：[1]DepartmentofComputerScience＆Engineering,ShanghaiJiaotongUniversity,Shanghai200030,P.R.China [2]E-BusinessTechnologyInstitute,TheUniversityofHongKong,HongKong,P.R.China

出　　处：《High Technology Letters》2005年第2期163-166,共4页高技术通讯（英文版）

基　　金：国家高技术研究发展计划(863计划)，国家重点基础研究发展计划(973计划)，the grand project of the Science and Technology Commission of Shanghai Municipality

摘　　要：A real-time transaction service aims at ensuring the consistency of real-time and transactional Grid applications. This paper proposes an efficient real-time transaction service (RTTS). It provides abilities to discover qualified services, I.e., participants, to execute specified sub-transactions, coordinate real-time Grid transactions, calculate deadline and assign priority for scheduling concurrent transactions. The service discovery adopts the two-level registry mechanismto adapt to transient Grid services. The coordination algorithm invokes multiplefunctional alternative services for each sub-transaction so that it remarkablyimproves the successful ratio of real-time transactions. The experiment result shows that the RTTS can well coordinate real-time transactions for Grid service environment and shield users from the complex process.

关 键 词：计算机网络 网格 实时处理系统 最终期限 优先权 

分 类 号：TP393[自动化与计算机技术—计算机应用技术]