计算机应用研究Issue(2)：461-465,5.DOI:10.3969/j.issn.1001-3695.2015.02.031
基于 NoSQL的 FITS文件头元数据存储和查询研究
Research on metadata storage and querying of FITS file based on NoSQL
摘要
Abstract
With a large telescope in use,observing stations are facing problems of PB-level data storage and data retrieval.Be-cause of the variability of the FITS file header,it is difficult to utilize the traditional relational database to store and retrieve the unstructured data efficiently.To address these problems,this paper proposed using NoSQL to store and query the metadata of the FITS file header.It discussed the shortcomings of using relational data model to store the variable header of a FITS file.It described the process of data storage and query,analyzed the feasibility of using NoSQL to store the variable FITS header,and further employed the method of relational algebra to express the process formally.A specific query instance proves the effec-tiveness and feasibility of using NoSQL to store the variable astronomical FITS header.关键词
天文数据存储/元数据/海量数据查询/非关系型数据库Key words
astronomical data storage/metadata/massive data query/NoSQL分类
信息技术与安全科学引用本文复制引用
刘应波,王锋,季凯帆,邓辉,戴伟,梁波..基于 NoSQL的 FITS文件头元数据存储和查询研究[J].计算机应用研究,2015,(2):461-465,5.基金项目
国家自然科学基金-联合基金资助项目（U1231205）；国家自然科学基金资助项目（11263004，11163004）；云南省应用基础研究基金重点项目 （）
