Ensuring recovery for SACReD web transactions in the e-commerce applications

Abstract

This paper presents an extension to a novel Web transaction management protocol, previously defined for a failure-free environment, such that it provides reliable recovery from failure in e-commerce applications. This protocol manages complex Web transactions upon multiple distributed Web services, and overcome limitations of two-phase commit protocols by applying correctness criteria based upon semantic atomicity. Further, it supports enhanced transaction resilience through the use of compensating and alternative transactions. The protocol has been prototyped in a CORBA environment. An evaluation carried out on this prototype shows that the new recovery mechanism minimises the logging cost, increases fault tolerance, and permits independent recovery of autonomous systems.