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Database migration method and device

A database and data technology, applied in the computer field, can solve problems such as business data loss, and achieve the effect of ensuring normal operation and avoiding data loss

Active Publication Date: 2017-05-17
BEIJING 58 INFORMATION TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

That is to say, because of the continuous generation of business data, a large amount of data will also be generated during the switching process. At this time, these data are not stored in the old database or in the new database, resulting in the loss of business data

Method used

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Embodiment Construction

[0016] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided for more thorough understanding of the present disclosure and to fully convey the scope of the present disclosure to those skilled in the art.

[0017] In order to solve the problems in the prior art, the present invention provides a method and device for database migration, recording continuous data writing requests during the data migration process, and re-executing the recorded requests to write data to a new database. The present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood tha...

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Abstract

The invention discloses a database migration method and device. The method comprises the steps that from the starting time of migrating data from an original database to a target database, write operation of non timeliness data generated by service in the original database from the starting time is recorded through a database agent layer, and closure points are recorded; after the data is migrated to a target database, according to records of the database agent layer, write operation of non timeliness data generated by the service in the original database is replayed sequentially piece by piece in the target database till the closure points stop operating. By means of the technical scheme, data loss in the data migration process can be avoided. Normal operation of the service is guaranteed.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a database migration method and device. Background technique [0002] As the enterprise grows and develops, when the existing database cannot meet the needs of business development, there is a need for database migration, that is, transferring data from the original database to a new database. Wherein, the original database and the new database may be located in two computer rooms in different regions. In the process of data migration, because the business is continuous, that is, there are uninterrupted storage requests for new data and read requests for data in the database. During this period, the data generated by the business also needs to be migrated from the old database to the new database. That is to say, because of the continuous generation of business data, a large amount of data will also be generated during the switching process. At this time, these data are not s...

Claims

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/214
Inventor 陈东田光曙
Owner BEIJING 58 INFORMATION TECH
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