Dynamic Load Balancing for Cluster-Based Publish/Subscribe System

In this paper we present load balancing techniques for Cluster-based pub/sub framework that include both static and dynamic load balancing. The static load balancing is done through a multi-cluster architecture for broker overlay network which is based on subscription distribution knowledge in the event space. The dynamic load balancing,on the other hand, is achieved through exploiting multiple inter-cluster and intra-cluster connections to dynamically distribute publication and subscription forwarding load among brokers during run time. Our experimental results show that the proposed load balancing techniques effectively prevent overloaded brokers without having significant effect on content dissemination efficiency.