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一种基于对象存储系统的元数据缓存实现方法 被引量:4

An Implementation of Metadata Cache in Object-based Storage System
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摘要 对象存储系统中元数据访问速度是影响文件系统性能的关键因素之一。提出了一种在客户端实现元数据缓存的方法,并用元数据操作协议保证缓存一致性,基于Hash的LFU-DA算法提高缓存查找效率。实验表明该方法减少了系统平均服务响应时间,提高了系统的I/O性能。 The metadata accessing speed is one of key factors of system performance in object-based storage system. A method for implementation of metadata cache presents at clients. The protocol of metadata operation guarantees the consistency for metadata cache. The hash-based LFU-DA increases the efficiency of searching metadata cache. Experimentation results indicate that the method improves average response time and I/O performance remarkably.
出处 《计算机科学》 CSCD 北大核心 2007年第10期146-148,共3页 Computer Science
基金 国家973计划项目(2004C318201)。
关键词 对象存储 元数据 元数据缓存 操作协议 LFU-DA Object-based storage, Metadata, Metadata cache, Operation protocol, LFU-DA
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