网格环境下基于XML的文件数据仓库的传输策略

File transfer strategy of XML data warehousing in grid

针对具有服务质量(QoS)的XML文件数据仓库传输策略进行分析.通过引入并行传输机制,对网格环境下的数据仓库并行传输的体系结构进行了研究,提出一种新的XML文件传输策略,利用解析减小数据传输量,提高传输效率.最后通过模拟测试对数据传输质量控制进行性能测评,证明新策略在大多数情况下可以有效、正确地提高文件传输效率,同时分析了这种传输策略不能提高效率的情况.测试结果证明通过这种策略可以明显改善在网格环境下的数据仓库模型.

The transmission procedure of data was analyzed with the QoS guarantee.The architecture of parallel data transmission involving in data warehousing in grid based on parallel transmission mechanism was investigated and offer a new file transfer strategy about XML(extensible markup language) which deduced data of transfer using parsing in order to improve the efficiency of transfer.Finally,the performance evaluation on the quality control procedure of data transmission was assessed by the simulation experiment.The results proved that the new transfer strategy can effectively and correctly develop the file transmission procedure in the most conditions.Moreover,some condition in which the new strategy cannot get wanted effect was pointed out.The model of data warehousing in grid was improved by the new file transfer strategy.