Lightweight Web Services Migration Framework in Hybrid Clouds

Service-oriented architectures allow the deployment of loosely coupled services that are platform independent. An enterprise can take advantage of service-oriented architecture in two different directions. On one side, the abstraction of technology implementation allows the deployment of web services in disparate systems. On the other side, the flexibility and independence of services from each other makes scalability easier to achieve. This paper presents a migration solution of web services in hybrid clouds. The adoption of hybrid cloud solutions is valuable for dynamic workloads to maintain the availability of web services during periods of spikes in demand. The migration solution is a lightweight framework composed of web services to manage cloud instances and the migration task of web services deployed on Java-based web containers. The peak management process is based on Java Management Extensions (JMX) technology to monitor resources and deployed web services. In addition, the framework dynamically integrates a set of JMX metrics to synchronize enterprise demand for resources with the migration process. Finally, a design of the framework prototype is described and a real case of CPU intensive web service is presented to test the migration process and show an improvement of CPU usage and execution time.