Data access method and computing device

A technology for data access and indexing data, which is applied in the field of data processing and can solve problems such as affecting the efficiency of data reading.

Pending Publication Date: 2021-09-14
ALIBABA SINGAPORE HLDG PTE LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] The embodiment of the present application provides a data access method and a computing device to solve technical problems affecting data reading efficiency in the prior art

Method used

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  • Data access method and computing device
  • Data access method and computing device

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Embodiment Construction

[0043] 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.

[0044] In some processes described in the specification and claims of the present application and the description in the above-mentioned drawings, multiple operations appearing in a specific order are included, but it should be clearly understood that these operations may not be performed in the order in which they appear herein Execution or parallel execution, 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 paral...

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Abstract

The embodiment of the invention provides a data access method and computing equipment. The method comprises the following steps: under the condition that all reading requests access a first version of index data, detecting the version update of the index data, and executing the following stream cutting operation, wherein the first version is the current latest version; following version updating of the index data, controlling the reading requests to be gradually switched from few to many to access the index data of the latest version, and controlling the other reading requests to access the index data of the historical version; and when it is detected that all the reading requests are switched to access the index data of the latest version, stopping executing the stream cutting operation. According to the technical scheme provided by the embodiment of the invention, the influence on the data reading efficiency is reduced.

Description

technical field [0001] The embodiments of the present application relate to the technical field of data processing, and in particular, to a data access method and a computing device. Background technique [0002] A storage system that adopts the LSM-Tree (The Log-Structured Merge-Tree) architecture writes data in an appended manner and does not update the original data. The write operation will first be written to the memory. When the memory data reaches the corresponding threshold, it will be frozen into a layer and then written to the persistent storage medium, and merged with the data in the persistent storage medium. The data on the persistent storage medium can also be stored in layers according to the hierarchical organization. After the data in each layer reaches the corresponding threshold, it will be merged with the data in the next layer. All written data, whether in memory or in persistent storage media, is sorted by the primary key (Key) and stored. [0003] An...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/21G06F16/22
CPCG06F16/219G06F16/2246
Inventor 尚灿芳黄贵王剑英
Owner ALIBABA SINGAPORE HLDG PTE LTD
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