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Metadata restoration method and related device

A repair method and metadata technology, applied in database indexing, structured data retrieval, electronic digital data processing, etc., can solve problems such as interrupting system business, business system interruption, and reducing business system reliability, so as to avoid being interrupted, The effect of improving reliability

Inactive Publication Date: 2021-02-02
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, if a node read from the disk has a CRC check error during use, a CRC alarm will be reported and the pool to which the node belongs will be notified to be offline, which will interrupt the system business
The business system is interrupted, which affects the normal operation of the business and reduces the reliability of the business system

Method used

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  • Metadata restoration method and related device
  • Metadata restoration method and related device

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Embodiment Construction

[0046] The core of the present application is to provide a metadata repair method, a metadata repair device, a server and a computer-readable storage medium, and perform tree reconstruction processing in metadata through key value information and bitmap data of leaf nodes in all reverse trees , which realizes the repair of metadata, avoids the interruption of the business system, does not affect the normal business operation, and improves the reliability of the business system.

[0047] In order to make the purposes, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments It is a part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtain...

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Abstract

The invention discloses a metadata restoration method. The method comprises the steps of obtaining a keyword range of a first tree corresponding to a failure node in metadata, performing tree structure reconstruction processing according to the key value information of the leaf nodes in the second tree corresponding to the keyword range to obtain a reconstruction tree, performing verification processing on all the second trees,when the check processing of all the second trees is passed, adding the reconstruction tree into the metadata so as to realize metadata restoration processing, when thecheck processing of all the second trees does not pass, repairing the reconstruction tree according to the bitmap data of the first tree to obtain a bitmap reconstruction tree, and adding the bitmap reconstruction tree into the metadata to realize metadata repair processing. The metadata is repaired, the service system is prevented from being interrupted, normal service operation is not affected,and the reliability of the service system is improved. The invention further discloses a metadata restoration device, a server and a computer readable storage medium, which have the above beneficial effects.

Description

technical field [0001] The present application relates to the technical field of data storage, and in particular to a method for restoring metadata, a device for restoring metadata, a server, and a computer-readable storage medium. Background technique [0002] In computer storage technology, metadata is usually used to manage the stored data accordingly. Among them, metadata, also known as intermediary data and relay data, is data describing data, mainly information describing data attributes, and is used to support functions such as indicating storage location, historical data, resource search, and file recording. Metadata can be regarded as an electronic catalog. In order to achieve the purpose of cataloging, it is necessary to describe and collect the content or characteristics of the data, and then achieve the purpose of assisting data retrieval. Currently, B+ trees are commonly used to store metadata information. Among them, B+ tree is a kind of data structure, which...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/22G06F11/14
CPCG06F11/1435G06F16/2237G06F16/2246
Inventor 肖计伟
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD