Metadata management method, electronic equipment and computer readable storage medium

Abstract

The embodiment of the invention relates to a metadata management method, electronic equipment and a computer readable storage medium, and the method comprises the following steps: when a fault of a first node is detected, extracting a metadata block from a disk to construct a first B+ tree in a memory of a second node; scanning a pre-constructed non-flashing identification area in the disk, and when data block identification information exists in the non-flashing identification area, obtaining the data block identification information; obtaining metadata corresponding to the data block identification information according to the data block identification information and data pre-stored in a disk; and constructing a second B+ tree in the memory of the second node according to the first B+ tree and the metadata. By means of the mode, the problem of performance degradation caused by metadata mirroring in the prior art can be avoided, it can be guaranteed that in the fault scene, metadata cannot be lost, another node can take over the compressed volume, and the effectiveness of the volume function is achieved.

Description

technical field [0001] The embodiments of the present invention relate to the field of computer technology, and in particular, to a metadata management method, electronic equipment, and a computer-readable storage medium. Background technique [0002] With the development of information industrialization, the amount of information data is increasing significantly, and the scale of data that needs to be stored is getting larger and larger, which puts forward higher requirements for the capacity of storage devices, and the cost is also increasing. Data reduction has become an important business content in storage, and compression is an important technical means in the data reduction solution. The value of data is immeasurable, and ensuring the reliability of data is the first priority of storage. Since compressed volumes are more complex than ordinary data volumes, complex metadata management solutions are required to ensure data reliability and performance. [0003] At pres...

AI Technical Summary

Problems solved by technology

[0004] The present application provides a metadata management method, an electronic device, and a computer-readable storage medium to solve the problem that in the prior art, under the premise of avoiding performance loss as much as possible, the effectiveness of metadata can still be guaranteed when the owner node fails. sexual technical issues

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