Data migration method and system for distributed cache database

A distributed cache and database technology, applied in the direction of electrical digital data processing, special data processing applications, instruments, etc., can solve the problems that cannot fully meet the needs of real-time, self-adaptive, complete data migration, data volume movement, etc., and achieve data The effect of small migration amount and safe data migration

Active Publication Date: 2018-11-13
ZTE CORP
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Problems solved by technology

[0011] The above method not only moves a relatively large amount of data, but also requires the cooperation of additional resources, and also has a small amount of interrupted services, which cannot fully meet the real-time, self-adaptive, and complete requirements of data migration.

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  • Data migration method and system for distributed cache database
  • Data migration method and system for distributed cache database
  • Data migration method and system for distributed cache database

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Embodiment Construction

[0073] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described below are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0074] figure 1 It is a flowchart of a method for migrating distributed cache database data provided by an embodiment of the present invention, such as figure 1 As shown, the steps include:

[0075] Step S101: during the CDB data migration, the CDB control node determines the steady-state data fragmentation distribution after the CDB data migration is completed.

[0076] If the CDB control node acquires a newly added data node, that is, in the scenario of adding a new data node, after the CDB control node selects the first copy to be migrated from the original data node, it first determines the original data Whether the node and the newly added data nod...

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Abstract

The invention discloses a data migration method and system for a distributed cache database. The method comprises the following steps that: during CDB (Cloud Database) data migration, a CDB control node determines steady state data fragment distribution after the CDB data migration is finished; the CDB control node determines a data fragment first copy which needs to be migrated to an immigrationnode according to the steady state data fragment distribution; and the CDB control node notifies the immigration node to enable the immigration node to obtain fragment data related to the first copy.By use of the embodiment of the invention, in a data migration process, a plurality of copies of the same data fragment are mutually converted to realize real-time, efficient and safe data migration,a data migration amount is small, additional resources do not need to be cooperated, and in addition, business can not be interrupted.

Description

technical field [0001] The invention relates to the field of data migration, in particular to a method and system for data migration of a distributed cache database. Background technique [0002] With the rapid development of wireless communication technology, changes in storage media, virtualization, and cloud computing, a large amount of real-time dynamic data needs to be distributed on each cloud node in the form of cache, and the data is no longer fixed and persistent on physical devices, but It can be distributed along with the resource scaling of the system. Therefore, it has become an important direction to study the migration of cached data in distributed scenarios. [0003] With the rapid development of cloud platforms and virtualization technologies, more and more attention has been paid to rapid deployment, multi-service coexistence, and physical resource sharing. The previous physical boards or servers were replaced by virtual machines or containers, and the reso...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F17/30
CPCG06F16/00
Inventor 侯芳
Owner ZTE CORP
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