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Data synchronization method and apparatus, and electronic device

A data synchronization and data technology, applied in the direction of electronic digital data processing, structured data retrieval, database distribution/replication, etc., can solve the problem of limited storage capacity, etc., to ensure consistency and overcome the limited storage capacity of single-machine storage The effect of capacity

Active Publication Date: 2018-07-13
ALIBABA GRP HLDG LTD
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  • Abstract
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Problems solved by technology

[0004] This application provides a data synchronization method to solve the defect of limited storage capacity in the prior art

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  • Data synchronization method and apparatus, and electronic device
  • Data synchronization method and apparatus, and electronic device
  • Data synchronization method and apparatus, and electronic device

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Embodiment Construction

[0057] 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.

[0058] The present application provides a data synchronization method, and the present application further provides a data synchronization device and an electronic device. The following describes in detail one by one with reference to the drawings of the embodiments provided in the present application, and describes each step of the method.

[0059] The implementation of the data synchronization method provided by this application is as follows:

[0060] Refer to attached figure 1 , which shows a processing flowcha...

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Abstract

The invention discloses a data synchronization method. The method comprises the steps of reading a new submitted log from a log queue by utilizing a node in a node cluster, wherein the new submitted log refers to a log submitted after the node cluster reads the log from the log queue; and according to a data change involved by a data change operation recorded in the new submitted log, applying thedata change to a data storage space, used for storing a snapshot data file, of the node cluster. According to the data synchronization method, during data synchronization, the data change involved bythe new submitted log in the log queue is applied to the data storage space of the node cluster, so that the data consistency is kept; and the separation of the log and the snapshot data file is realized, so that the defect that the storage capacity of the snapshot data file is limited by the storage capacity of a single machine is overcome.

Description

technical field [0001] The present application relates to the technical field of data synchronization, and in particular to a data synchronization method. The present application also relates to a data synchronization device and an electronic device. Background technique [0002] With the development of cloud computing, more and more business needs require a more powerful data center for data storage, and require the data center to have strong high availability, which can minimize or even eliminate the impact of system failures on normal operations. Therefore, the establishment of multiple data centers to achieve business disaster recovery has become an inevitable choice, and data synchronization between these data centers has become a crucial part of achieving high business availability. [0003] At present, there are many solutions focusing on realizing data consistency in distributed scenarios. For example, Google Chubby is the first project to introduce the Paxos consen...

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Application Information

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IPC IPC(8): G06F17/30
CPCG06F16/2365G06F16/24578G06F16/27
Inventor 唐治洋卢毅军陶云峰
Owner ALIBABA GRP HLDG LTD
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