【摘要】 随着分布式系统应用的不断发展,采用负载均衡策略以提高分布式系统的整体性能越来越重要。在分析前人研究成果的基础上,实现了基于中间件技术的动态负载均衡策略。以资源利用率和节点的调和性能平均值为评价指标,该策略综合衡量系统的负载,量化异构系统中各节点的性能,使得负载具有可比性。通过实时监测各节点的负载情况,并及时调整负载策略的相关参数,可使系统运转达到最优。更多还原

【Abstract】 With the development of distributed application system,it becomes more and more important to apply load balancing policy to improve the distributed system’s overall performance.Based on analysing previous research achievements,a middleware-based dynamic load balancing policy was realized in this paper.The policy takes the resource utilization ratio and the reconciliation mean performance of nodes as evaluation indices,comprehensively measures the load in system and quantifies the performance of each node in heterogeneous environment,these make the loads be comparable.The system’s overall performance can be optimized by monitoring real time load of each node and adjusting timely the relevant parameters of the load balancing policy.更多还原