MOSIX集群系统中DFSA机制研究  

Study on Mechanism of DFSA in MOSIX

作　　者：薛继东[1] 晏宁[1] 王力[1] 

机构地区：[1]西安电子科技大学软件工程研究所,陕西西安710071

出　　处：《微机发展》2004年第7期25-27,共3页Microcomputer Development

摘　　要：MOSIX是基于Linux的集群计算系统,它通过抢占式进程迁移使负载在集群节点间达到均衡。DFSA(DirectFileSystemAccess)是一种能够提高集群文件系统性能的机制,它允许迁移的进程直接访问当前节点上的文件。MOSIX通过其文件系统MFS(MOSIXFileSystem)引入了对DFSA的支持,实现了把进程迁移到数据的策略。文中简要介绍了MOSIX系统,然后对DFSA机制进行了分析,最后研究了MOSIX中DFSA机制的实现。MOSIX is a cluster computing system based on Linux kernel.It can achieve dynamic load balance through pre-emptive process migration. DFSA is a provision that can improve the performance of cluster file system to allowing a migrated process to access files in its current node. DFSA is supported in MOSIX by MOSIX File System (MFS) . This paper give an overview of the MOSIX system,the introduction of the provision of DFSA followed, finally the paper analyses the implementation of DFSA in MOSIX.

关 键 词：MOSIX 集群计算系统 DFSA LINUX 负载均衡集群 

分 类 号：TP316.81[自动化与计算机技术—计算机软件与理论]