Data migration method and device, storage medium and electronic equipment

Abstract

Embodiments of the invention provide a data migration method and apparatus, a storage medium and electronic equipment. The data migration method comprises the steps of obtaining a data migration signal; determining a first original system according to the first original system information, determining a target system according to the target system information, determining first difference data andfirst difference data volume according to the first original system data and the target system data in a preset period, and migrating the first difference data to the target system; when the number of consecutive times that the first difference data volume obtained according to the preset period is less than the first data volume threshold reaches a first preset number of times, in response to the data request, writing the to-be-written data into the first original system and the target system at the same time, reading the to-be-read data from the first original system, and returning the to-be-read data obtained from the first original system through the first original system. According to the data migration method and device, the storage medium and the electronic equipment, the requirement for smooth and stable reading and writing of the data in the data migration process can be met.

Description

technical field [0001] The embodiments of the present invention relate to the computer field, and in particular, to a data migration method, device, storage medium, and electronic equipment. Background technique [0002] With the development of business, we often encounter data migration requirements due to the upgrade of business functions, the merger of similar business systems, and the upgrade of system architecture, that is, to migrate data from the first original system to the target system. [0003] The existing data migration method usually stops access to the data after receiving the data migration instruction, no longer allows reading and writing operations on the data, and migrates the data to the target system by backing up the data of the first original system In the process, the external access to the target system is not allowed until the data migration is completed, or during the process, data writing or reading errors occur. [0004] Therefore, how to realiz...

AI Technical Summary

Problems solved by technology

[0003] The existing data migration method usually stops access to the data after receiving the data migration instruction, no longer allows reading and writing operations on the data, and migrates the data to the target system by backing up the data of the first original system In the process, the external access to the target system is allowed after the data migration is completed, or during the process, data writing or reading errors occur

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