High Availability with Clusters of Web Services

Internet is open 24 hours a day, 7 days a week, so hardware, software, and communications must be always online. Additionally, the total number of users and its workload is completely unpredictable. If you decide to use web services, you will have no solution for problems like those. This paper shows a new technique that can be applied to web services technology in order to be able to deploy web services with high availability features using clustering. This new technique is based on the virtualization of the real web services used to serve the client requests, creating new virtual web services that will be the ones invoked by the clients. At the back-end, the implementation web services (the real ones) will be invoked inside a cluster.