1. A computer implemented system that facilitates managing a number of active servers in a cluster for connection-intensive services, comprising: a forecast component that provides a prediction relating to at least one of login rate or number of connections in the cluster at a future time; a load dispatching component that distributes incoming login requests to the active servers according to at least one of a load balancing mechanism or a load skewing mechanism; a dynamic load analysis component that evaluates dynamic behaviors in login rate and number of connections in the cluster as a result of load dispatching; and a provisioning component that determines a number of servers in the cluster needed based at least in part on the prediction and dynamic behaviors, the provisioning component includes an additional margin in the number of servers needed in accordance with multiplicative factors ascertained based upon the prediction and dynamic behavior, the multiplicative factors include at least a forecast factors portion and a dynamic factors portion.