Master-slave bidirectional synchronization data storage method

Abstract

The invention discloses a master-slave bidirectional synchronous data storage method, which relates to the technical field of data processing. The method comprises the following steps: a DRBD virtualdisk creation step: installing and configuring a DRBD service to each storage service node, and creating a DRBD virtual disk; a node role defining step of installing and configuring Keepalived servicefor each storage service node, marking the storage service node as a master node or a slave node, and defining roles of a DRBD virtual disk as a master DRBD virtual disk and a slave DRBD virtual diskaccording to the node role; a data synchronization step: backing up the data stored in the master DRBD virtual disk to the slave DRBD virtual disk; a Virtual IP management step: assigning an virtualIP address to master node, managing the virtual IP address through Keepalived, keeping the virtual IP address always in surviving master node, when master node is inaccessible, slave nodes will be defined as master nodes automatically. The present invention is intended to provide a master-slave bi-directional synchronization data storage method capable of reducing implementation costs and reducingrequirements for an external communication environment.

Description

technical field [0001] The invention relates to the technical field of data processing, in particular to a master-slave two-way synchronous data storage method. Background technique [0002] With the increasing popularity of network services, it is often necessary to store some commonly used data (such as business data, etc.) on servers in multiple computer rooms at the same time. For example, in order to provide the same service to users all over the country, three computer rooms are set up in Beijing, Guangzhou, and Tibet respectively. Users can access the required services through any node in the computer room. Generally, users access the nearest node in the computer room That's it. At this time, the data stored in the computer rooms in Beijing, Guangzhou and Tibet are the same. In addition, sometimes in order to prevent the service interruption caused by the server hanging in one computer room, multiple computer rooms storing the same data will also be deployed at the ...

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Problems solved by technology

[0004] Existing cross-computer room data backup is usually based on hardware devices, and mirror replication based on block devices is generally implemented by independent storage. The reliability of this method is relatively guaranteed, but special mirror replication equipment is required, and the Data replication of the entire physical hard disk, a large amount of data replication requires high network bandwidth, so the price is relatively expensive, and it is highly dependent on external environments such as network broadband. Therefore, there is an urgent need for a low-cost, network-friendly Master-slave two-way synchronization data storage method across computer rooms with low broadband dependence

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