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Database system and database updating and capacity expanding method and device

A database and data technology, applied in the database field, can solve problems such as time-consuming, difficult implementation, large-scale data redistribution, etc., and achieve high efficiency and simple operation

Pending Publication Date: 2019-10-08
ALIBABA GRP HLDG LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, adding data nodes to the existing MPP architecture will involve redistribution of large-scale data, which is difficult and time-consuming to implement

Method used

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  • Database system and database updating and capacity expanding method and device
  • Database system and database updating and capacity expanding method and device
  • Database system and database updating and capacity expanding method and device

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Embodiment Construction

[0049] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.

[0050] In the prior art, the service performance of the database system is improved by adding data nodes of the MPP architecture. This method involves redistribution of large-scale data, which is difficult to implement and takes a long time. In view of the problems existing in the prior art, some embodiments of the present application provide a new da...

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Abstract

The embodiment of the invention provides a database system and a database updating and capacity expanding method and device. The embodiment of the invention provides a new database architecture, and based on a storage space sharing mechanism of master and slave nodes, data writing and querying functions can be flexibly and conveniently provided for the outside by the master node and the slave nodes. The database architecture is based on the sharing mechanism of the master node and the slave nodes to the storage space, can be directly connected with new slave nodes on the storage space to realize system expansion, meets the increasing concurrent query service requirements, and is simple to operate and high in efficiency.

Description

technical field [0001] The present application relates to the technical field of databases, and in particular to a database system, a method and equipment for updating and expanding the database. Background technique [0002] As big data applications become more and more popular, people have more and more demands for big data analysis and query, and analytical databases emerge as the times require. [0003] Currently, analytical databases generally adopt a massively parallel processing (Massively Parallel Processing, MPP) architecture. The MPP architecture achieves large-scale data storage by evenly distributing data to multiple data nodes; by distributing query requests to multiple data nodes in parallel, each data node performs calculations, and the host performs summary results. Implement parallel query. [0004] With the continuous growth of business requirements, the MPP architecture needs to add data nodes to improve the service performance of the entire architecture...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F16/23G06F16/2453G06F16/2455
CPCG06F16/23G06F16/24547G06F16/24552
Inventor 黄泉龙叶建林
Owner ALIBABA GRP HLDG LTD
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