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A redundant nested invocation suppression mechanism for active replication fault-tolerant Web service

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4 Author(s)
Chen-Liang Fang ; Dept. of Inf. Manage., Jin-Wen Inst. of Technol., Taipei, Taiwan ; Deron Liang ; Chyouhnwa Chen ; PuSan Lin

Zwass suggested that middleware and message service is one of the five fundamental technologies used to realize electronic commerce (EC) [Zwass, V. (1996)]. The simple object access protocol (SOAP) is recognized as a more promising middleware for EC applications among other leading candidates such as CORBA. We notice that the fault-tolerance issue is somewhat neglected in the current standard, i.e., SOAP 1.1. We therefore proposed a fault tolerant Web service called fault-tolerant SOAP or FT-SOAP through which Web services can be built with higher resilience to failure. Active replication is a common approach to building highly available and reliable distributed software applications. The redundant nested invocation (RNI) problem arises when servers in a replicated group issues nested invocations to other server groups in response to a client invocation. In this work, we propose a mechanism to perform auto-suppression of redundant nested invocation in an active replication FT-SOAP system. Our approach ensures the portability requirement of a middleware, especially for FT-SOAP.

Published in:

e-Technology, e-Commerce and e-Service, 2004. EEE '04. 2004 IEEE International Conference on

Date of Conference:

28-31 March 2004