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A New Load Balancing Scheme on Heterogeneous Database Cluster
作者姓名:GONG  Weihua  WANG  Yuanzhen
作者单位:College of Computer Science and Technology, Huazhong University of Science and Technology, Guanshan, Wuhan 430074, China.
基金项目:Supported by the National 863 Programof China(No.2001AA13519002) .
摘    要:IntroductionAlthoughthe development of cluster has gainedmore and more advantages of low-cost ,high-per-formance and high-availability computing, effi-cient resource usage such as CPU, memory andI/Ois still a keyto achieve better performanceincluster syst…

关 键 词:OLTP  数据库  负载平衡  动力学
文章编号:1009-5020(2006)03-216-07
收稿时间:2006-05-18

A new load balancing scheme on heterogeneous database cluster
GONG Weihua WANG Yuanzhen.A New Load Balancing Scheme on Heterogeneous Database Cluster[J].Geo-Spatial Information Science,2006,9(3):216-222.
Authors:Gong Weihua Ph D  Wang Yuanzhen
Institution:GONG Weihua WANG Yuanzhen
Abstract:In heterogeneous database cluster, the performance of load balancing is closely related to the computing capabilities of heterogeneous nodes and the different types of workloads. Thus, a method is introduced to evaluate the load status of nodes by the weighted load values with consideration of both the utilization of different resources and the workload types in a load balancer and an efficient and dynamic load balancing scheme is proposed for OLTP(online transaction processing) workloads to maximize the utilization of distributed resources and achieve better performance, which need not collect the feedback of load information from the lower nodes and effectively keeps from the data skew. The simulation results for OLTP services gained by TPC-C tool show that the dynamic weighted balancing policy leads to sub-linear throughput speedup and keeps the heterogeneous cluster well balanced.
Keywords:heterogeneous cluster  OLTP  load balancing
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