Analyze And Design On Enterprise Distributed System Based On Load Balancing

With the integrated development of computer technology and communications technology as well as the number of users growing larger,more and more load bring to Valued-Added Service System which is developed by enterprise, a higher demand on web server's capablity to respond to the visit requests and to deal with them.If the web server can't meet the large amount of visit demand,it can not provide the visitors with steady and good service. Distributed cluster technology is the solution of system which include numerous users, this technology distributed request to each server, however,how to balance load between servers is beconing a new problem,so load balancing technology is a hotspot.Load balancing algorithm is devided into static load balancing algorithm and dynamic load balancing algorithm.Because of dynamic one can anticipate the load of the servers,so it has a better performance than the static one. Many researchers have proposed their own algorithm,but their algorithm have many limitations for specific application.On the basis of researching technology which is already exist,specific to the trait of the Telecom Value-Added system , this paper proposes a new approach, Random Dispatch Load-balance Algorithm Based on Service Type .The main research content in this paper are listed as follows:1. Specific to the trait of the Telecom Value-Added system,design a platform for it,based on J2EE architecture and good at expansibility and stability,the main function include portal,user,cluster,task, ticket management.An event-driven module was introduced to the core platform,to provide enough support in business module.2.Through research of the common load balancing technology and algorithm,specific to the diversification of the Telecom Value-Added System,we devide service which is provider by the company into different types,and allocate a number for it. When the load balancing machine receive the request,analyze their type,so this can improve the efficiency of the whole system.3.In the process of the server operation, real-time collect load information of the server,combined with the real-time linking numbers,is the server's final load.This method avoided load unbalancing.When redirect the request,consider the isomery cluster,we use ratio,that is the surplus dealing ability of the server divided by the surplus dealing ability of the whole system.The load balancing algorithm proposed by this paper resolve the load unbalancing problem occurred when service type is difference.Prove by experiment,this method can reduce average response time efficiency.