文献类型：期刊文献

英文题名：Load balancing strategy for cloud computing based on dynamic replica technology

作者：Liu, Kun[1];Wang, Tingmei[1];Chen, Jingxia[1]

第一作者：刘琨

通讯作者：Liu, K[1]

机构：[1]Beijing Union Univ, Coll Appl Sci & Technol, Beijing, Peoples R China

第一机构：北京联合大学应用科技学院

通讯机构：[1]corresponding author), Beijing Union Univ, Coll Appl Sci & Technol, Beijing, Peoples R China.|[1141775]北京联合大学应用科技学院;[11417]北京联合大学;

年份：2019

卷号：19

期号：4

起止页码：891-901

外文期刊名：JOURNAL OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING

收录：EI(收录号：20194907785847);Scopus(收录号：2-s2.0-85075823354);WOS:【ESCI(收录号:WOS:000498820900004)】；

基金：The research was founded within the project entitled: "Premium Funding Project for Academic Human and Resources Development in Beijing Union University" and "Research funds of Beijing Union University".

语种：英文

外文关键词：Cloud computing; load balancing; replica; file access frequency

摘要：Dynamic Replica Technology can solve the problem of load balancing in cloud computing. Multiple replicas are distributed in different nodes and the load of a node can be dispersed to other nodes that have the replicas. This paper presents a replica manage strategy based on file access frequency to solve the problem of load balancing, including the time for creating the replicas, the number of the replicas, the location of the replicas, the time for deleting the replicas and deleting the replicas. The strategy determines the number and the location of replicas according to the file access frequency, node's storage space, network bandwidth, replica consistency maintenance cost and other factors. The replica will be deleted when the file access frequency is low or it has not been accessed for a long time. Experimental results reveal that the algorithm can not only achieve load balancing but also improve the performance of the system.