基于合并控制消息的分布式文件系统优化机制  

Optimization Mechanism for Distributed File System Based on Merging Control Messages

作　　者：刘扬宽[1] 蔡涛[1] 鞠时光[1] 詹永照[1] 

机构地区：[1]江苏大学计算机科学与通信工程学院,江苏镇江212013

出　　处：《小型微型计算机系统》2013年第6期1317-1320,共4页Journal of Chinese Computer Systems

基　　金：广东省自然科学基金项目(S2011010006118)资助;江苏省高校自然科学基金项目(09KJB520001)资助;江苏大学高级人才启动基金项目(09JDG038)资助

摘　　要：目前将控制消息通信与数据通信分离能大大提高分布式文件系统的性能,但大量的控制消息通信仍然是影响分布式文件系统性能的重要因素.在分析pNFS中控制消息通信协议的基础上,基于操作语义,提出一种基于合并RPC的控制消息通信协议,通过减少控制消息通信的数量,达到提高分布式文件系统读写性能的目的;并在pNFS-2.6.33的基础上实现一个原型系统,使用Filebench以及多种负载数据集进行了测试与分析,实验结果显示在文件大小达到2GB以上时读写性能比之前提高了约5%.Departing control messages and data communications traffic can largely improve the performance of distributed file system at present. However, communication for a large number of control messages is still an improtant factor that affects the performance of distributed file system. This paper has proposed a kind of control messaging protocol based on merging RPCs that have strong associa- tion in operational semantics, after analysing control messaging protocol in the pNFS. By reducing the quantity of control messaging, the read and write performance of distributed file system can be improved. We implement a prototype system based on pNFS-2. 6. 33. Several Filebench workloads has been tested and the result has been analyzed, the results show that our optimization mechanism can improve the read and write performance of system by about 5 percent when the file size is larger than 2GB.

关 键 词：分布式文件系统 远程过程调用 通信协议 并行网络文件系统 

分 类 号：TP316[自动化与计算机技术—计算机软件与理论]