Author
Gülcü, K., Sözer, Hasan, Aktemur, Tankut Barış
Publication Date
2012
Publication Place
-
Springer Science+Business Media
Type
Book
Language
English
Digital
Yes
Manuscript
No
Library
Özyeğin University
Library Asset ID
978-3-642-33176-3
Record ID
63bfe41f-3ef4-401b-a945-d834463835ae
Library Location
Computer Science
Date
2012
Notes
Due to copyright restrictions, the access to the full text of this article is only available via subscription.
Sample Text
In service-oriented architectures, composite services depend on a set of partner services to perform the required tasks. These partner services may become unavailable due to system and/or network faults, leading to an increased error rate for the composite service. In this paper, we propose an approach to prevent the occurrence of errors that result from the unavailability of partner services. We introduce an external Web service, FAS (Fault Avoidance Service), to which composite services can register at will. After registration, FAS periodically checks the partner links, detects unavailable partner services, and updates the composite service with available alternatives. Thus, in case of a partner service error, the composite service will have been updated before invoking the partner service. We provide mathematical analysis regarding the error rate and the ratio of false positives with respect to the monitoring frequency of FAS for different partner service availabilities. We also provide empirical results regarding these metrics based on several tests we performed using the Amazon Elastic Compute Cloud.
DOI
10.1007/978-3-642-33176-3_8
