A distributed storage data equalization method and device

A technology of distributed storage and balancing method, applied in the field of distributed storage, can solve the problem of uneven distribution, and achieve the effect of improving uneven distribution, uniform storage, and improving utilization rate

Inactive Publication Date: 2019-06-25
NEW H3C TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present application aims to provide a data balancing method and device for distributed storage, so as to improve the problem of uneven distribution of data in the storage process and improve the utilization rate of storage space

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  • A distributed storage data equalization method and device
  • A distributed storage data equalization method and device
  • A distributed storage data equalization method and device

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Embodiment Construction

[0072] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. It should be understood that the appended The figures are only for the purpose of illustration and description, and are not used to limit the protection scope of the present application. Additionally, it should be understood that the schematic drawings are not drawn to scale. The flowcharts used in this application illustrate operations implemented in accordance with some embodiments of the application. It should be understood that the operations of the flowcharts may be performed out of order, and steps that have no logical context may be performed in reverse order or concurrently. In addition, those skilled in the art may add one or more other operations t...

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Abstract

The embodiment of the invention provides a data equalization method and device for distributed storage, and relates to the technical field of distributed storage. The method comprises the steps of generating a mapping relation table corresponding to object storage equipment and a reduction group in each storage node; based on the number threshold of the reduction group, adjusting the sorting groups corresponding to the object storage devices with the number higher than and lower than the number threshold value, so that the number of the sorting groups corresponding to each object storage device tends to the number threshold value and is relatively uniform, the problem of non-uniform distribution of data in the storage process can be improved, and the utilization rate of the storage space is improved.

Description

technical field [0001] The present application relates to the technical field of distributed storage, and in particular, to a data balancing method and device for distributed storage. Background technique [0002] In a distributed storage system, a storage node may use a placement group to store data in the object storage device based on the corresponding relationship established between the placement group and the object storage device in the storage node. [0003] For the establishment of the corresponding relationship, at present, a corresponding placement group can be assigned to each object storage device through a random algorithm. However, this method will lead to a large difference in the number of placement groups corresponding to each storage node in the established correspondence. For example, the number of placement groups corresponding to object storage device A is 100, but the number of placement groups corresponding to object storage device B is The number of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F3/06
Inventor 张天洁
Owner NEW H3C TECH CO LTD
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