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Data synchronization method and device

A data synchronization and data technology, applied in the computer field, can solve the problems of no storage space, discarding, multiple cache space, etc., to save cache space and avoid incomplete data.

Active Publication Date: 2020-01-31
BEIJING OCEANBASE TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] However, the inventors have found that when there are many received out-of-order data, storing all these out-of-order data in the cache space will take up more cache space, especially when the stored out-of-order data has already occupied the entire cache space Finally, if out-of-order data is received subsequently, since there is no extra storage space in the cache space, the subsequently received out-of-order data will be discarded, resulting in incomplete synchronous data

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Embodiment Construction

[0067] Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numerals in different drawings refer to the same or similar elements unless otherwise indicated. The implementations described in the following exemplary examples do not represent all implementations consistent with the present invention. Rather, they are merely examples of apparatuses and methods consistent with aspects of the invention as recited in the appended claims.

[0068] figure 1 is a flowchart of a data synchronization method shown according to an exemplary embodiment, such as figure 1 As shown, the method includes the following steps.

[0069] In step S101, when the data to be synchronized is received, the data to be synchronized is stored in a storage location in the preset storage space;

[0070] When a device needs to synchronize data locally, if ...

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Abstract

The embodiment of the invention provides a data synchronization method and device. According to the method and device, it is not required to store data to be synchronized according to preset sequence, and therefore when the data to be synchronized is received, it is not needed to determine first whether or not the sequence of the data to be synchronized and synchronized data is the preset sequence, the data to be synchronized is not required to be stored in buffer memory space, instead, the data to be synchronized is stored directly in a storage position of preset storage space. Therefore, buffer memory space is saved, received data cannot be discarded by full filling of the buffer memory space, and incompleteness of synchronized data is avoided.

Description

technical field [0001] The invention relates to the field of computer technology, in particular to a data synchronization method and device. Background technique [0002] Currently, people usually use storage devices to store data, and sometimes the storage devices may fail during work, which makes the stored data unavailable. In order to avoid unavailability of stored data due to downtime of the storage device, it is usually necessary to synchronize the data stored in the storage device to a backup device, so that when the storage device goes down, the data stored in the backup device is still available. [0003] In actual scenarios, sometimes the data that the storage device needs to synchronize to the backup device may contain large data that occupies a relatively large storage space. When the storage device synchronizes big data with the backup device, the storage device generally splits the big data into multiple pieces of data in order, and then synchronizes the multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F3/06
Inventor 阳振坤王鲁俊
Owner BEIJING OCEANBASE TECH CO LTD