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A data recovery method and device

A recovery method and data technology, applied in the field of data processing, can solve problems affecting user business data reading and writing, affecting the performance of distributed shared storage systems, etc.

Active Publication Date: 2021-08-10
ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process of data recovery by a storage node usually affects the reading and writing of data on the storage node by user services, which may affect the performance of the current distributed shared storage system

Method used

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  • A data recovery method and device
  • A data recovery method and device

Examples

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Embodiment Construction

[0061] In the existing distributed storage system, if part of the data stored on the primary storage node is corrupted or abnormal, in order to avoid data loss, the primary storage node usually needs to use the backup storage node in the distributed storage system in a short time. Stored data to complete data recovery. However, the primary storage node may also provide data read and write services for user services. At this time, the data recovery process performed by the primary storage node may affect user services. Especially when the user business is relatively busy, there will be more data read and write requests for the primary storage node. However, the primary storage node is recovering data at this time, which may cause the primary storage node to not respond to the data for a long time. Read and write requests, which affect the data read and write of user services.

[0062] Based on this, the embodiment of the present application provides a data recovery method. For...

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Abstract

The present application discloses a data recovery method and device, including: in each recovery cycle in the data recovery process, the first storage node obtains the first data volume of the recovered data, and judges whether it reaches the preset allowable recovery data amount, if so, suspend data recovery, where the allowable data amount corresponds to the current business scenario, the allowable data amount to be restored is the preset amount of data allowed to be restored within a recovery cycle; determine whether the first storage node has reached the preset recovery Completion condition, if the preset recovery end condition is not met, continue data recovery in the next recovery cycle adjacent to this recovery cycle, and re-execute the above steps, and if the preset recovery end condition is met, end the data recovery recovery process. It can be seen that during data recovery, the data recovery speed of the first storage node is limited for the current business scenario, so that the impact of the data recovery process on user services can be reduced as much as possible.

Description

technical field [0001] The present application relates to the technical field of data processing, and in particular to a data recovery method and device. Background technique [0002] In a distributed shared storage system, if there is a disk failure or node failure in the cluster, for example, some data stored on the storage node is damaged, in order to avoid data loss, it is usually necessary to complete the recovery of this part of the data in a short time. However, the process of data recovery by a storage node usually affects the reading and writing of data on the storage node by user services, which may affect the performance of the current distributed shared storage system. In scenarios such as video surveillance and radio and television media assets, it is usually required that the distributed storage system has continuous and stable performance. Impact. Contents of the invention [0003] The technical problem to be solved by the embodiments of the present applic...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/14
CPCG06F11/1464G06F11/1469
Inventor 许银龙
Owner ZHENGZHOU YUNHAI INFORMATION TECH CO LTD
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