Abstract: The data exchange between heterogeneous nodes in the representative instances of data grid has low efficiency. In order to overcome the disadvantage of the data grid, an event-driven based asynchronous message pass model is proposed. The related definitions and the architecture of this model are discussed. The data access middleware of SDG based on this model is also developed. The initial usage shows the event-driven based synchronous message pass model is important for SDG, which has mass data.

Key words: scientific data grid, event-driven, asynchronous message, data access middleware

摘要： 典型数据网格实例在异构节点之间的数据传输效率低效。为了克服其缺点，提出了一个基于事件驱动的异步消息传输模型，给出了相关定义，论述了该模型的体系结构，并应用于科学数据网格中数据访问中间件当中。初步应用表明，该文提出的基于事件驱动的异步传输模型方案，对于具有数据海量性的科学数据网格具有重要意义。

关键词: 科学数据网格, 事件驱动, 异步消息, 数据访问中间件

CLC Number: 

• TP393