基于Nginx服务器负载均衡技术的研究与改进

Research and Improvement of Load Balancing Technology Based on Nginx Server

为了减轻快速增长的网络负载压力,本文为web后端服务器集群搭建了基于Nginx的负载均衡服务器[1],将其作为集群的反向代理服务器,使集群具备了负载均衡的功能,对负载均衡算法进行了分析。并针对Nginx自带负载均衡策略的缺陷提出了一种动态自适应负载均衡算法[2-5]-改进型加权最小连接数算法,同时对其算法进行了设计。测试的实验结果验证了改进型加权最小连接数算法的可行性[6]。

In order to reduce the rapid growth of network load pressure,this paper builds a Nginx-based load balancing server for the web back-end server cluster,which is used as a back-agent server for the cluster,so that the cluster has load balancing function,and the load balancing algorithm is analyzed.A dynamic adaptive load balancing algorithmis proposed for adapting the flaw of Nginx's load balancing strategy-Improved weighted minimum connection number algorithm.At the same time,the algorithm is designed.The experimental results verify the feasibility of the improved weighted minimum connection number algorithm.