摘要：

研究基于内容的Web服务器动态负载均衡算法，将其中的请求类别对应的服务器数与PICK-KX算法中的K值相结合，提出一种新的算法。模拟实验结果表明，该算法可以在较高的缓存命中率和较小的服务器负载计算负荷之间取得良好的平衡。在极限情况下，经该算法均衡后的集群服务器可以返回更多的请求响应。

关键词: 内容, 缓存命中率, 负载均衡, 请求转发, Web服务器

Abstract:

The content-based dynamic load-balancing algorithm of Web server is researched. A new algorithm by combining the number of servers corresponding to the request type concerned and the K value of PICK-KX algorithm is developed based on the dynamic algorithm of load-balancing of Web server. Simulation tests show this type of algorithm achieves a better balance between higher cache hit rate and smaller servers’ load-calculation. Besides, Web server balanced by this algorithm can acknowledge more responses in limit cases.

Key words: content, cache hit rate, load-balancing, request forwarding, Web server

中图分类号: 

• N945