A method for realizing metadata directory structure for memory cloud

• Main Authors: ZHAO WENJIA, HOU DI, QI YONG, WANG PEIJIAN, HOU ZHIQI
• Format: Patent
• Language: Chinese; English
• Published: 11.12.2018
• Subjects: CALCULATING; COMPUTING; COUNTING; ELECTRIC DIGITAL DATA PROCESSING; PHYSICS

A method for realizing the metadata directory structure for the memory cloud is provided. In the form of a directory tree, the directory structure is separated from the contents of the directory node,the flexibility of node content changeability is improved, each directory node separately adds an abbreviated pid field, the pid field of the child node points to the fileid field of the parent node,and a secondary index is added to the pid field. When a user searches a directory, the pid secondary index, Key-Value and memory storage advantages are utilized, so the efficiency of directory retrieval is improved and the mount efficiency is greatly improved. 本发明的面向内存云的元数据目录结构实现方法，采用目录树的形式，将目录结构与目录节点内容进行分离，提高节点内容可变的灵活性，每个目录节点单独增设简称pid字段，子节点的pid字段指向父节点的fileid字段，并对pid字段添加二级索引，当用户检索目录的时候，利用pid二级索引、Key-Value和内存存储的优势，提高目录检索效率，挂载效率也得到了很大的提升。