Method for organizing and accessing metadata file log

Abstract

The invention provides a method for organizing and accessing a metadata file log. The method comprises the following steps of: organizing all files related to a consistency operation of a log system by utilizing a red-black tree, and selecting a file name of a log file as a keyword of the red-black tree. According to the method for organizing and accessing the metadata file log, provided by the invention, the files related to a reliable operation are managed by guiding the red-black tree so that operation times of the files in the reliable operation are reduced and performance of the reliable operation is improved; and simultaneously, an operation of writing a plurality of metadata into a disc is subjected to convergence management so that a sync operation of the files is largely reduced and the processing time of the reliable operation is shortened.

Description

technical field

[0001] The invention relates to log management in a distributed file system, in particular to a method for organizing and accessing metadata logs in a distributed file system based on a local file system. Background technique

[0002] With the rapid development of computer technology, the requirements for storage in the fields of network and scientific computing are getting higher and higher, so the distributed file system is gradually introduced into these fields to meet the storage needs of these fields. Considering the complexity of implementation, many distributed files are implemented based on the local file system.

[0003] In a distributed file system, metadata maintains important information such as all directories and files, so its reliability is very important. In order to improve its reliability, many distributed file systems use a log system to improve reliability.

[0004] In this log system based on the local file system, all logs are an ordin...