Research On Grid Monitoring System Based On Event Notification Service

The grid technology has been developed greatly since it was proposed in 1990s, and has become one of the hot researching fields. Grid Monitoring System provides essential and source-related performance data for the users and developers of grid, and it lays the base for grid system to regulate performance and find errors. So how to construct Grid Monitoring System is one of the critical problems of the grid research, and has become an important research direction.This paper designs an ENS-based (Event Notification Service, ENS for short) Grid Monitoring System, which uses "content-based publish/subscribe" as the communication mechanism and is high scalability. The design idea is derived from Content-based Event Notification Service.The grid environment is wide-area heterogeneous environment, which is across wide areas, and it will be consist of many LANs, these LANs are distributed and belong to different organizations. This paper proposes a hybrid topology in constructing the server network of Grid Monitoring System, which is hybrid from hierarchical topology and generic peer-to-peer topology.According to the characters of the object of grid monitoring, based on the SIENA (Scalable Internet Event Notification Architecture), this paper designs data structure and message format which are suitable for Grid Monitoring System. Based on the original routing and forwarding algorithm of the SIENA, this paper designs a classification-based routing and forwarding algorithm.At last, this paper designs a grid monitoring prototype system according the architecture mentioned above, and implements main function modules. In addition, this paper compares the classification-based algorithm with the original algorithm of the SIENA by experiments, and the results show that the classification-based algorithm increases the speed of forwarding message.