基于动态反馈的负载均衡算法

负载均衡服务器集群中,负载均衡算法是一个关键的部分,它是集群系统中任务分配的核心环节。任务分配的主要因素包括服务节点的处理能力与服务节点实际负载两个部分。本文所讨论的负载均衡算法综合了这两方面的影响,引入了节点负载增量对服务节点实际负载进行预测,以求更精确地表示服务节点的负载情况;同时通过动态反馈机制实时修正,保证了系统在长时间运行时,负载不会发生倾斜。

A Load Balancing Algorithm Based on Dynamic Feed-Back

In a load balancing cluster, the core of task distribution is the load balancing algorithm. There are two main factors, the node load and the capability, which affect task distribution. The algorithm discussed in this paper synthesizes the influence of the two aspects,and introduces a new concept of node load increment to prognosticate the node' s current load and use a dynamic feedback mechanism to fix the result, which makes task distribution more reasonable.