Abstract: Refering to the dynamic load change in the Web server cluster system, this paper presents a new load balancing algorithm to achieve more efficient balance of the task allocation. Combined with dynamic feedback algorithm theory, the algorithm changes the corresponding nodes weight according to the load of server node periodically, avoiding the server load imbalance. Experimental results show that the algorithm effectively reduces the average system latency, improves the throughput, and enhances the overall cluster system performance.

Key words: cluster, load balancing, dynamic feedback

摘要： 针对Web服务器集群系统中负载动态变化的特点，为了高效地实现任务均衡分配，提出一种新的负载均衡算法。该算法结合动态反馈原理，周期地根据服务器节点真实负载的状态变化情况，改变其相应节点的权值，避免服务器间的负载失衡。实验表明，该方法能有效降低系统平均服务延迟时间和提高吞吐量，提升集群系统的整体性能。

关键词: 集群, 负载均衡, 动态反馈

CLC Number: 

• TP393