摘要
提出并实现了一种建立在Peer-to-Peer 搜索策略上的自组织、自适应、高效和可靠的文件系统DISPFS(Double ID Space basedPeer-to-peer File System)。它在双层ID 空间中构造虚拟存储节点,不仅有效地取得了文件系统内的负载均衡、提高系统利用率,而且保证了动态环境中文件的可靠、快速获取。试验数据表明,DISPFS 在系统接近满负荷运行和文件插入/删除操作频繁的双重压力下依然保持优良的性能。
The design and the implementation of D1SPFS (double ID space based peer-to-Peer file system), a file system based on double ID space, provide a new method to solve 2 key points in file system: load balancing and file availability. In DISPFS, the base ID space provides virtual storage nodes to approach to system load balancing. The virtual storage node maintains k replicas of each file in its responsibility through which strong availability is guaranteed. The upper ID space offers efficient file distribution and tile query through excellent peer-to-peer search service. DISPFS is an efficient and reliable peer-to-peer file systems, and it remains good performance under the conditions of heavy storage overhead and frequent file inserting or file disclaiming.
出处
《计算机工程》
EI
CAS
CSCD
北大核心
2005年第10期69-71,167,共4页
Computer Engineering
基金
中国科学院知识创新工程定向发布基金资助项目:"大型数字对象应用环境及其并行模拟"(KGCX-JG-09)
国家"863"计划基金资助项目"服务器操作系统"(2002AA1Z2101)