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Data processing method and system, equipment, computer program product and storage medium

A data processing and data page technology, applied in the computer field, can solve problems such as affecting database performance, thread blocking, and dirty data page brushing.

Pending Publication Date: 2021-11-02
ALIBABA SINGAPORE HLDG PTE LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practical applications, there will be a variety of reasons that make it impossible to clean the data pages, which in turn leads to thread blocking and directly affects the performance of the database.

Method used

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  • Data processing method and system, equipment, computer program product and storage medium
  • Data processing method and system, equipment, computer program product and storage medium
  • Data processing method and system, equipment, computer program product and storage medium

Examples

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Embodiment Construction

[0029] In order to enable those skilled in the art to better understand the solutions of the present application, 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.

[0030] Some processes described in the specification, claims, and above-mentioned drawings of the present application contain multiple operations appearing in a specific order, and these operations may not be executed in the order in which they appear herein or executed in parallel. The serial numbers of the operations, such as 101, 102, etc., are only used to distinguish different operations, and the serial numbers themselves do not represent any execution order. Additionally, these processes can include more or fewer operations, and these operations can be performed sequentially or in parallel. It should be noted that the descriptions of "first" and "second" in this a...

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Abstract

The embodiment of the invention provides a data processing method and system, equipment, a computer program product and a storage medium. The method comprises the following steps: when a data page does not meet a condition of writing into a disk, generating a copy page, wherein the copied page comprises a first sequence identifier of a log corresponding to first time modification of the data page, a second sequence identifier of a log corresponding to second time modification of the data page, and data information of the data page after multiple modification from the first time to the second time; enabling the first time to be earlier than the second time; if the copy page meets the condition of writing into the disk, executing the operation of updating the first sequence identifier corresponding to the data page in the disk into the second sequence identifier. According to the scheme provided by the embodiment of the invention, the progress that the read-write node writes the data page into the disk (namely, the disk falling) can be promoted, and correspondingly, the read-only node can also delete logs accumulated in the memory as soon as possible, so that the read-only node has the capability of receiving new logs.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a data processing method, system, device, computer program product and storage medium. Background technique [0002] With the development of cloud-native database technology, more and more users are participating in cloud technology. The user's requirements for the data processing volume and processing speed of the database are also gradually increasing. [0003] The data of a data page is modified on the read-write node in the database, but the data page in the disk is not updated synchronously in time, which will cause the data in the data page on the read-write node to be inconsistent with the data in the data page on the disk. This data page is called a dirty page. In order to ensure that the data on the disk and the data page in the memory of the read-write node are consistent, the data page needs to be cleaned, that is, the modified data is moved from the memo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/215G06F16/23G06F16/2458G06F16/28
CPCG06F16/215G06F16/23G06F16/2474G06F16/284
Inventor 庄泽超
Owner ALIBABA SINGAPORE HLDG PTE LTD
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