【作者】 田敬； 张大为； 代亚非； 韩华；

【Author】 Tian Jing, Zhang Da-Wei, Dai Ya-Fei and Han Hua Department of Computer Science and Technology, Peking University, Beijing 100871

【机构】 北京大学计算机科学技术系；

【摘要】 ESStore是一种用于提高基于分布式哈西表的结构化P2P存储系统可靠性和可用性的机制。它在 P2P网络层之上,使用Erasure code对文件进行编码存储。本文描述了ESStore在P2P网络中进行文件存储、读取和删除的基本方法,以及进行数据校验、一致性维护、修复和垃圾碎片回收的基本机制。另外,本文给出了协议可用性的定量分析,并通过实际系统说明了该协议的存储性能。更多还原

【Abstract】 ESStore is a protocol used in P2P storage system to improve the reliability and availability. ESStore can be applied on all P2P networks which are based on distributed hash table, and it utilizes Erasure code to encode file content to store. In this paper, we discussed the approach to store, retrieve and delete files in detail and the mechanism of data verification, consistency, repair and garbage collection. Finally we analyze the reliability and availability, and give out the performance of our prototype system.更多还原