Global Server Load Balancing with Networked Load Balancers for Geographically Distributed Cloud Datacenters
The characteristic of high scalability, elasticity and availability of infinite computing resources have obliged many
organizations to deploy mission critical and user centric applications in the cloud computing environment. To avoid any single
point of failure in the cloud system the cloud service provider provide redundancy at all levels in the datacenter but the recent
natural disasters have made the datacenter itself a single point of failure. Thus to deploy applications in the datacenters
dispersed across geographic regions has become the need of the hour. Efficient load balancing among these datacenters is
critical to increase user responsiveness and seamless failover in case of natural disasters. In this research paper we critically
analyzed the state-of-the art techniques used for Global Server Load Balancing and have proposed a novel model of networked
load balancers for load balancing across the datacenters in cloud computing environment. The proposed model overcomes the
shortcomings of existing DNS based load balancing by considering current load status of datacenter, by making time to live of
DNS server cache redundant and by finding the exact location by real IP of end user.
Index Terms - Cloud computing,disaster recover,domain name system, global server load balancing, loadbalancing.