1. Optimized Composite Service Transactions through Execution Results Prediction
- Author
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Zhaotong Li, Muhan Wang, Chao Guan, Huanxing Chi, Jiuyun Xu, Huilin Shen, and Stephan Reiff-Marganiec
- Subjects
Service (business) ,Skyline ,Database ,Transaction processing ,Computer science ,Composite web services ,Control (management) ,020206 networking & telecommunications ,02 engineering and technology ,computer.software_genre ,Compensation (engineering) ,Risk analysis (engineering) ,0202 electrical engineering, electronic engineering, information engineering ,020201 artificial intelligence & image processing ,Web service ,computer - Abstract
Traditional web services transaction processing mechanism handle exception by forward recovery and backward recovery. These compensation mechanisms often lead to waste of resources and time. In this paper, we propose a framework for predicting outcomes of service executions as part of service compositions which allows to choose service instances that are likely to lead to a successful result in the first instance and thus reduces the need for invoking costly recovery mechanisms. The framework makes use of watchdogs to maintain an awareness of service availability and a pre-coordinator which has oversight of the whole composite Web service and acts as a control center. An analysis of a scenario shows that we cannot only provide users with a more satisfactory result, but also can reduce the overhead costs of resources and waste.
- Published
- 2016
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