| 摘要: |
| 分布式系统的动态配置问题近年来引起了各国研究者的广泛关注.该文对面向图结构的分布式程序设计模型GOM(graph-oriented model)进行了扩充和改进,提出了支持动态配置的程序设计模型ExGOM(extended graph-oriented model).ExGOM提供了多种基于图结构的配置操作.用户可在配置文件中描述系统结构的动态变化,也可在程序中利用配置操作进行动态配置.这一特性使得系统可支持不可预计的动态配置.文章还给出了以多Agent机制实现ExGOM的系统结构. |
| 关键词: 分布式程序设计,动态配置/重配置,容错. |
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| A Hierarchical Distributed Programming Model Supporting Dynamic Configuration |
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LIU Ying,CHEN Dao-xu,XIE Li,CAO Jian-nong
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| Abstract: |
| In the recent years, the importance of supporting dynamic configuration in distributed systems has been widely recognized by many researchers. A new model ExGOM(extended graph-oriented model) supporting dynamic configuration by improving and extending GOM (graph-oriented model) is proposed in this paper. ExGOM supplies abundant configuration functions based on graph constructs. The user can define dynamic changes of the system architecture in the configuration file, or by using the configuration functions in the programs. This is a significant attribute so that the model can support unpredicted(non pre-planned) dynamic configuration. Also in this paper, the system architecture of the model implemented by a multi-agent mechanism is presented. |
| Key words: Distributed programming, dynamic configuration/reconfiguration, fault tolerance. |
