Web service community collect similar Web services to provide services to users. There will be queuing phenomenon when a large number of users access to the community at the same time. Users will take up a portion of the resources when they are queuing in the community

so that a portion of the extra cost will be generated

aiming at this problem

study how to set up the optimal service number

so that the extra cost of this part is minimum. Give the definition of Web service community

and the problem of queuing in the service community is mapped into the problem of queuing theory

the queuing model is M / M / n. Calculate the queue length of users in steady state

and get the number of queuing users in the community. The cost function is determined by the cost factor in the Web service community. The optimal service number is obtained by the marginal analysis method in economics. Experiments show that the method can effectively find the optimal number of services

and the efficiency of the method is relatively high.