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Data updating method, device, system and electronic equipment

A data update and equipment technology, applied in the field of data processing, can solve the problems of wasting IO resources of storage media and large data volume, and achieve the effect of reducing data volume and saving resources

Active Publication Date: 2020-11-17
BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

That is to say, in the process of brushing dirty pages, two copies of data need to be updated to the storage medium, resulting in a large amount of data in the storage medium IO (Input / Output, input / output), which is a waste of storage medium IO resources

Method used

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  • Data updating method, device, system and electronic equipment
  • Data updating method, device, system and electronic equipment
  • Data updating method, device, system and electronic equipment

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Embodiment Construction

[0034] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. the embodiment. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative efforts belong to the protection scope of the present invention.

[0035] Due to the large amount of information at present, massive amounts of data are stored in the database, and the number of rows of many single-table data reaches tens of millions or even over 100 million. In database storage, a large amount of data in a table is stored in a storage medium file, which makes a single storage medium file too large, which will result in low efficiency in cleani...

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Abstract

The invention provides a data updating method, device and system and electronic equipment. When the data in the internal memory needs to be updated to the storage medium, firstly, acquiring an updating record, storing a file identifier of a storage medium file with updated data in the latest specified updating frequency in the updating record, then determining a target storage medium file from a plurality of storage medium files according to the acquired updating record, and finally updating the data in an internal memory into the target storage medium file. In the method, when the data in theinternal memory needs to be updated to the storage medium, the target storage medium file is selected from the plurality of storage medium files according to the update record, and the data in the internal memory is only updated to the target storage medium file, so that only one copy of data needs to be updated to the storage medium, the storage medium IO data volume is reduced, and the storagemedium IO resources are saved.

Description

technical field [0001] The present invention relates to the technical field of data processing, in particular to a data updating method, device, system and electronic equipment. Background technique [0002] When the content on the internal memory data page is inconsistent with the content on the storage medium data page, the internal memory data page is called a dirty page; when the data in the internal memory data page is updated to the storage medium data page, the internal memory data page and the storage medium The content on the data page is consistent. This data update process is the process of cleaning dirty pages. In the process of flushing dirty pages, in order to avoid database downtime caused by abnormal power failure of the database, data is usually updated in a double write mode. That is to say, in the process of flushing dirty pages, two copies of data need to be updated to the storage medium, resulting in a large amount of data in the storage medium IO (Inpu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06G06F12/0804G06F12/1009
CPCG06F3/0625G06F3/0629G06F3/064G06F12/0804G06F12/1009
Inventor 邱海港
Owner BEIJING KINGSOFT CLOUD NETWORK TECH CO LTD