In general job management system,we always adopt the centralized load diversification strategy for load balancing.But the central controller is the system's bottleneck due to its inadequacy of being easy to cause a single point of failure,especially in the cloud computing environment,where there exist a huge number of servers,and the central controller will bear a very large load.Therefore,based on distributed group strategy,proposes a load balancing algorithm which groups the servers in the cluster system ...