基于动态优先级的数据复制反射式中间件研究

Research on Dynamic Priority Based Reflective Middleware for Data Replication

反射式中间件是当前中间件研究的热点,其特点是能够对中间件系统的灵活性和自适应性提供良好的支持。数据网格通常处于动态变化的环境和不同的用户需求之中,对灵活性和自适应性的支持是一个良好的数据网格和数据复制系统所必需的,通过动态配置数据和SE(storage element)的优先级,DPRM(Dynamic priority based Reflective Middleware for Data Replication)提供了这一支持。使用OptorSim仿真的结果表明,DPRM有着良好的性能。

Reflective middleware is a hot topic at present, which enables a high degree of integration flexibility and adaptability. DRPM provides good flexibility and adaptability in face of environment varying and different user requirements which are absolutely necessary to Data Grid and Data Replication systems by dynamicly configuring the priority of data and SE. Results from OptorSim simulator are promising.