基于多级副本分布的机群服务器动态扩展研究

Research on Scalability of Cluster Servers with Multi-replication

升级和扩展是机群服务器系统需要经常面对的问题。该文提出了基于多级副本分布的机群服务器系统重构和动态扩展模型及结点动态添加算法,采用优化的局部平衡文件迁移策略,有效减少系统动态添加新结点时的文件迁移开销,支持机群系统的动态扩展。

Rapid promotion is important and frequent for cluster servers. This paper presents a dynamic scalable system reconstruction model based on multi-replica distribution. Then a node dynamic inserting algorithm with a local optimal file transfer and balance policy is proposed. Experimental results show that the proposed method can reduce the cost of file transfers when dynamic node inserting and supporting the scalability of cluster servers effectively.