Seamless on-line service upgrade for telecommunication web-services

Internet services are now the major service platforms to provide services for all sectors of business and industries. To assure the correctness for concurrent data access, transaction-based Internet service is a well-accepted computation model. Because of the proliferation of networked devices and globalization, internet services can barely undertake any service interruption during any time of the day. However, transaction-base service model does not guarantee service continuity and could lower the quality of service in many circumstances. In this paper, we describe the design and implementation for service continuity technology to provide seamless online service upgrade for transaction-based Internet services. In particular, we report the implementation details on enterprise testbed. The developed mechanism is verified against on-line telecommunication web-services. The experimental results show that the recovery overhead is negligible and the mechanism is practical for deployment.