File system in user space implementation method oriented to MongoDB

Abstract

The invention discloses a file system in user space implementation method oriented to MongoDB. The method comprises the following steps: building an fs.nodes set for storing file directory structure information and node metadata information; creating a MongoDB GridFS storage file; automatically generating an fs.files set for storing file metadata information and an fs.chunks set for storing file data information while creating the MongoDB GridFS storage file; realizing correlation of the fs.nodes set, the fs.files set and the fs.chunks set, specifically correlation of a directory node and the fs.nodes set, correction of a file node and the fs.nodes set and correlation of the fs.files set and the fs.chunks set, during creation and deletion of nodes by using a Linux file system and a MongoDB database, wherein the parent-child relationship between nodes is determined by the link structure of fs.nodes. The method supports directory operation, and has the advantages of small occupation of storage space, high reading-writing efficiency and the like.

Description

technical field [0001] The invention belongs to the field of cloud storage, and relates to a user space file system implementation method, in particular to a MongoDB-oriented user space file system implementation method. Background technique [0002] In the context of the era of big data, storage issues have become the focus of academia and industry again, and traditional technologies and methods have been difficult to cope with the new challenges brought about by the sharp increase in data volume. Cloud storage is a new concept extended and developed from the concept of cloud computing under this background. A system in which devices work together through application software to jointly provide data storage and business access functions. In the cloud, various storage devices are integrated and managed through application software (take the MongoDB cluster server as an example), and users use terminals (PCs, mobile phones, etc.) to access the storage services provided by th...

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In 2009, Paul Rosania tried to develop it, and pointed out in the published release notes that the current unreso

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