基于网格服务的网格环境下数据传输

网格环境下的数据访问需要一种能够跨异构平台进行数据传输的机制，但是，现有的GridFTP协议存在某些情况下无法跨防火墙进行数据传输的局限。为解决这一问题，论文提出了一种基于网格服务进行数据传输的方法，使用数据压缩、并行数据传输、缓冲区调整技术改善了该传输方法的性能；基于传输日志实现了故障恢复，提高了数据传输的可靠性。最后使用Globus工具集实现了这种数据传输方法，并进行了传输性能的分析。

Grid Service-Based Data Transfer in Grid Environment

In grid computing environment, data access needs a mechanism with capability of crossing heterogeneous platforms, but it is localized by one of the disabilities of GridFTP, which can not go through firewalls in some situations. To solve this issue, an approach to transfer data in grid environment using grid service was presented. Meanwhile, data compression, parallel data transfer, and buffer adjustment technologies enhances the performance of the transfer. Based on fault recovery by transfer log, the reliability of data transfer is increased. Finally, Globus toolkit was used to implement this approach and analysis of performance in transfer was also conducted.