Customizable Service State Durability for Service Oriented Architectures

Xianan Zhang, Matti Hiltunen, Keith Marzullo and Richard Schlichting
July 13, 2006

Service Oriented Architectures (SOAs) are gaining increased use and interest with the growing importance of web and grid services, and the dependability of services in such architectures is critical. While the techniques for implementing highly dependable services are well known, each technique has its tradeoffs relative to runtime performance overhead, resource cost, and level of assurance provided. The ability to choose the dependability based on the service requirements and characteristics allows the optimization of these tradeoffs. The goal of our work is to provide mechanisms that allow different durability mechanisms (e.g., in-memory replication or database storage) to be implemented as separate modules and then applied as needed to different variables and data structures constituting the service state. We describe an overall architecture that allows such durability customization for each web service and present preliminary performance results.

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