Data synchronization method, device and distributed storage system
A distributed storage and data synchronization technology, applied in transmission systems, electrical components, etc., can solve problems affecting data operation efficiency, affecting other services of users, and low data operation efficiency, so as to improve user experience, save network consumption, and save The effect of network bandwidth
Active Publication Date: 2021-01-01
NEW H3C TECH CO LTD
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Problems solved by technology
The main storage device needs to wait for all the slave storage devices to finish writing data before notifying the client of the completion of the data writing task, which is likely to cause a long tail effect and affect the efficiency of data operations
Moreover, since the main storage device needs to wait for the completion of the data writing task before continuing to provide other services for the client, the efficiency of data operation is low, which will also affect other services of the user
Method used
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[0043] In order to make the purpose, technical solutions and advantages of the embodiments of the present disclosure clearer, the technical solutions of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of them. implementation. Based on the implementation manners in the present disclosure, all other implementation manners obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present disclosure.
[0044] For the application environment of the data synchronization method and device provided by the embodiments of the present disclosure, please refer to figure 1 as shown, figure 1A distributed storage system is shown, and the distributed storage system may include a client 10 and multiple storage devices connected to the client 10 . The client 10 can...
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The disclosure provides a data synchronization method, device and distributed storage system, belonging to the technical field of data storage. In the data synchronization method, device and distributed storage system provided by the present disclosure, after the primary storage device sends the log information to the secondary storage device, it is not necessary to send the data in the data operation request to the secondary storage device, so that the secondary storage device updates the local data, saving network consumption between the primary storage device and the secondary storage device, and saving network bandwidth. After the main storage device receives the log writing success message returned from the storage device and reaches or exceeds the preset threshold, it starts the data operation corresponding to the data operation request on the main storage device, and sends the data to the client when the main storage device completes the data operation Operation successful notification. The master storage device does not need to wait for the slave storage devices to complete the data update operation before sending a notification of the success of the data operation to the client, which improves the efficiency of the data operation and thus improves the user experience.
Description
technical field [0001] The present disclosure relates to the technical field of data storage, and in particular, to a data synchronization method, device and distributed storage system. Background technique [0002] With the development of technologies such as high-definition video, image processing, and video surveillance, user data capacity is gradually increasing, and at the same time, user requirements for the reliability and performance of stored data are also increasing simultaneously. At present, in order to ensure the reliability of stored data, distributed storage systems usually adopt multi-copy storage, that is, one user data is stored in multiple copies, and when one of the data is damaged, the data can be obtained from other copies to ensure data security. High reliability. Therefore, data consistency needs to be maintained between multiple copies of a piece of data, that is, data in multiple copies needs to be updated synchronously. [0003] The distributed s...
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IPC IPC(8): H04L29/08
CPCH04L67/1095H04L67/1097H04L67/5651
Inventor 刘浩
Owner NEW H3C TECH CO LTD