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A data synchronization method and device for a new server in a database cluster

A data synchronization and server technology, applied in database distribution/replication, structured data retrieval, special data processing applications, etc., can solve problems such as data loss and implementation difficulties, achieve consistency, simple and convenient implementation, and avoid data synchronization effect of operation

Active Publication Date: 2019-11-22
ALIBABA DAMO (HANGZHOU) TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] This application provides a data synchronization method for newly added servers in a database cluster to solve the problems of data loss and implementation difficulties in the prior art

Method used

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  • A data synchronization method and device for a new server in a database cluster
  • A data synchronization method and device for a new server in a database cluster
  • A data synchronization method and device for a new server in a database cluster

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Embodiment Construction

[0069] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the application. However, the present application can be implemented in many other ways different from those described here, and those skilled in the art can make similar promotions without violating the connotation of the present application. Therefore, the present application is not limited by the specific implementation disclosed below.

[0070] The application provides a data synchronization method for a new server in a database cluster, and also relates to a data synchronization device for a new server in a database cluster. The following descriptions are made in conjunction with the drawings of the embodiments provided in the present application, and each step of the method is described.

[0071] An embodiment of a data synchronization method for a new server in a database cluster provided by this application is as follows:

[0072] Refer to attac...

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Abstract

The application discloses a data synchronization method and device of a server newly added to a database cluster. The method comprises following steps: data to be synchronized which is stored in a first memory device of a server in a database cluster is synchronized to a newly added server; the newly added server is allowed to start receiving incremental data; the incremental data comprises external input newly increased data received in real time by the server in the database cluster; data to be synchronized which is stored in a second memory device of a server in a database cluster is synchronized to the newly added server; the second memory device is used for storing the incremental data; the incremental data stored in the second memory device is finally stored in the first memory device; after the synchronization of the data to be synchronized is completed, the newly added server is added to the database cluster and launched to provide data read-write service to the outside. The data synchronization method of a server newly added to a database cluster can provides unified data service, which is simple and easy to realize.

Description

technical field [0001] The present application relates to the technical field of data synchronization, in particular to a data synchronization method for a new server in a database cluster. The present application also relates to a data synchronization device for a newly added server in a database cluster. Background technique [0002] With the rapid development of information systems and office automation, enterprises rely more and more on information systems. As the core of information systems, databases play an important role. With the growth of enterprises and the increase in business volume, the system's The rapid growth of visits and data traffic, correspondingly, correspondingly increases the processing capacity and computing intensity of the server corresponding to the system, making it impossible for a single server to undertake the corresponding business processing capacity, seriously affecting the normal operation of the system, and may even bring huge economic l...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F16/27
CPCG06F16/275
Inventor 阳际荣
Owner ALIBABA DAMO (HANGZHOU) TECH CO LTD
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