计算机应用与软件2016，Vol.33Issue(8)：53-56,178,5.DOI:10.3969/j.issn.1000-386x.2016.08.012
云存储日志文件系统中垃圾数据回收的设计与实现
DESIGN AND IMPLEMENTATION OF JUNK DATA RETRIEVE IN LOG-STRUCTURED FILE SYSTEM OF CLOUD STORAGE
摘要
Abstract
With the booming development of network big data,industry of all sectors are carrying out study around it.Meanwhile,because of the abnormal data expansion,the ensuing problem is how to retrieve junk data.In this paper,we design and implement a junk data retrieve subsystem based on log-structured file system of cloud storage,HLFS (Hadoop distributed file system based log-structured file system).By appending the subsystem to HLFS,not only the utilisation of data space can be enhanced,but the insufficient data space is also effectively avoided.In order to analyse the performance of junk data retrieve subsystem in HLFS,in end of the paper we compare the pros and cons of this subsystem in HLFS with the junk data retrieve mechanism in other systems,thereby help users to choose proper junk data retrieve mechanism to improve disk utilisation and system performance.关键词
云存储/日志文件系统/垃圾数据回收Key words
Cloud storage/Log-structured file system/Junk data retrieve分类
信息技术与安全科学引用本文复制引用
贾威威,林奕,张延园..云存储日志文件系统中垃圾数据回收的设计与实现[J].计算机应用与软件,2016,33(8):53-56,178,5.基金项目
国家自然科学基金项目（61272123）。 （）
