Data backup method and device and readable storage medium

A data backup and metadata technology, applied in the field of distributed databases, can solve problems affecting the use of distributed time-series database systems, and achieve the effect of overcoming excessive dependence and improving the ability to resist risks

Active Publication Date: 2020-04-21
SHANGHAI JUNZHENG NETWORK TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003]The existing data backup method is mainly through the main backup method, that is, one host contains all the data, and other machines are used as the backup machines of the host, for example

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  • Data backup method and device and readable storage medium
  • Data backup method and device and readable storage medium
  • Data backup method and device and readable storage medium

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Embodiment Construction

[0070] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary only for explaining the present invention and should not be construed as limiting the present invention.

[0071] see figure 1 , a data backup method in an embodiment of the present invention is applied to a distributed time-series database system, wherein the distributed time-series database system includes 2n+1 metadata management servers used to form metadata management nodes and 2n+1 metadata management servers used to form data service nodes And at least one root server that exchanges data with the outside; n is a natural number.

[0072] In some implementations, multiple metadata management server clusters form a metadata management no...

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Abstract

The invention relates to a data backup method and device and a readable storage medium, and aims to search for a more effective implementation scheme of data backup of a distributed time sequence database. The method comprises the following steps: step S101, dividing into K partitions; S102, obtaining a host metadata management node and a main partition, and entering the main partition; S103, modifying the memory data into to-be-backed-up data, and sending the to-be-backed-up data to other metadata management nodes in parallel; S104, brushing the data to be backed up into the main partition; and S105, detecting whether the main partition of the host metadata management node is used up or not, if so, terminating the period of the main partition, and repeating the steps S102 to S105. According to the distributed time series database system, data backup is carried out through the method that the metadata management nodes serve as hosts for each other and are divided into the hosts and thebackup based on the data blocks, excessive dependence on the hosts in the prior art is overcome, and the anti-risk capacity of the distributed time series database system is improved.

Description

technical field [0001] The present invention relates to the field of distributed databases, in particular, the present invention relates to a data backup method, device and readable storage medium. Background technique [0002] With the development of the Internet of Things, more and more distributed time series databases have begun to be applied to Internet products and services. Among them, distributed time series databases introduce time series on the basis of distributed databases; distributed databases usually use smaller Computer system, each computer can be placed in a separate place, each computer may have a complete copy of the database management system (Database Management System, DBMS), or a partial copy of the copy, and has its own local database, located in Many computers in different locations are connected to each other through the network to form a complete and global logically centralized and physically distributed large database. Therefore, the data backu...

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Application Information

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IPC IPC(8): G06F11/14G06F16/2455G06F16/27
CPCG06F11/1448G06F16/24554G06F16/27
Inventor 杨磊马春晓邢益伟
Owner SHANGHAI JUNZHENG NETWORK TECH CO LTD
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