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Data recovery method and device, equipment and storage medium

A data repair and data technology, which is applied in the direction of data error detection and response error generation in electrical digital data processing and calculation, can solve abnormal writing, inconsistent data distribution, and affect the accuracy of data retrieval, etc. problems, to reduce the impact of operations, solve inconsistent data distribution, and ensure accuracy

Pending Publication Date: 2021-06-04
HANGZHOU HIKVISION DIGITAL TECH
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  • Claims
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Problems solved by technology

[0004] However, since the data and indexes are stored in two different distributed storage engines, such an architecture will lead to inconsistent data distribution in the two distributed storage engines due to misoperations such as abnormal writing or human-intentional deletion. Affect the accuracy of operations such as data retrieval

Method used

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  • Data recovery method and device, equipment and storage medium
  • Data recovery method and device, equipment and storage medium
  • Data recovery method and device, equipment and storage medium

Examples

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Embodiment Construction

[0056] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0057] The terminology used in the present invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used herein and in the appended claims, the singular forms "a", "the", and "the" are intended to include the plural forms as well, unless the context clearly dictates otherwise. It should also be understood that the term "and / or" as use...

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Abstract

The invention provides a data recovery method and device, equipment and a storage medium. The consistency of data distribution in two distributed storage engines is ensured. The method comprises: respectively counting first data distribution information of a first distributed storage engine in a first time period and second data distribution information of a second distributed storage engine in the first time period; comparing whether the first data distribution information and the second data distribution information meet the consistency requirement or not, and if not, obtaining a first log and a second log, wherein the first log is used for recording an operation event and operation time executed by the first distributed storage engine, and the second log is used for recording an operation event and operation time executed for the second distributed storage engine; and executing data recovery operation according to the operation events of which the operation time is in the first time period in the first log and the second log, so that the data distribution information of the first distributed storage engine and the second distributed storage engine in the first time period meets the consistency requirement.

Description

technical field [0001] The present invention relates to the technical field of data storage, in particular to a data restoration method, device and equipment, and a storage medium. Background technique [0002] In the era of big data, the data generated by all walks of life is showing a surge trend. In the face of these massive data, the currently popular distributed storage engines such as Hbase can support tens of millions of QPS (query rate per second) and PB (data The unit of storage capacity is equal to 2 to the power of 50 bytes) level of storage, so it can provide users with efficient read and write services. But for a single distributed storage engine, although it can efficiently complete the storage operation of massive data, it is still slightly inefficient in the face of many list queries, sorting and some statistical function operations. [0003] In order to further improve efficiency, the architecture of a single distributed storage engine is changed and anothe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F11/07G06F11/14
CPCG06F11/0793G06F11/0709G06F11/0727G06F11/1435
Inventor 何永健王辉李冰杰徐志威
Owner HANGZHOU HIKVISION DIGITAL TECH
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