Full text
| |
| Author(s): |
Jonathan de Matos
Total Authors: 1
|
| Document type: | Master's Dissertation |
| Press: | São Carlos. |
| Institution: | Universidade de São Paulo (USP). Instituto de Ciências Matemáticas e de Computação (ICMC/SB) |
| Defense date: | 2009-04-16 |
| Examining board members: |
Paulo Sergio Lopes de Souza;
Carlos Renato Lisboa Francês;
Edson dos Santos Moreira
|
| Advisor: | Paulo Sergio Lopes de Souza |
| Field of knowledge: | Physical Sciences and Mathematics - Computer Science |
| Indexed in: | Banco de Dados Bibliográficos da USP-DEDALUS; Biblioteca Digital de Teses e Dissertações - USP |
| Location: | Universidade de São Paulo. Instituto de Ciências Matemáticas e de Computação. Biblioteca Prof. Achille Bassi; T; M433dc |
| Abstract | |
SOA is becoming a widespread approach to develop systems. High demand problems may appear in huge systems where SOA and web services are used. This problems can be solved by means of distributed architectures like clusters. This work presents the proposal of a new architecture for request distribution in web service clusters. The proposed architecture provides flexible request distribution. It allows the use of several policies, these related to different objectives, applications and platforms. The architecture\'s dynamic feature enables decisions based on states of the cluster\'s elements, in a transparent way, under clients\' point of view. The architecture was tested using a prototype that implements the proposed ideas in this work. The objectives of the proposal were reached by the prototype and still shown performance improving in many cases, when comparing to an existing solution. The use of a novel policy, related to energetic efficiency for clusters, is also shown on the experiments related to flexibility. Among architecture\'s contributions is a novel software architecture that acts as a facility to create and to test more efficient web services policies (AU) | |