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Distributed storage system and method for deleting volumes in distributed storage system

A technology of distributed storage and deletion method, which is applied in the field of deletion of volumes in distributed storage systems, can solve problems such as deletion, achieve the effect of maintaining stability and reliability, and freeing up space

Pending Publication Date: 2021-01-22
南京鹏云网络科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Aiming at the problem of how to continue to delete data without affecting the operation of the system when the disk in the distributed storage system fails in the prior art, the present invention provides a distributed storage system and a volume deletion method in the distributed storage system

Method used

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  • Distributed storage system and method for deleting volumes in distributed storage system
  • Distributed storage system and method for deleting volumes in distributed storage system
  • Distributed storage system and method for deleting volumes in distributed storage system

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific embodiments.

[0028] For better illustration, some concepts are defined here (see Table 1).

[0029] Table I

[0030]

[0031]

[0032] The technical solution of the present invention will be described in detail below in conjunction with the accompanying drawings and embodiments. The management of a complete distributed storage system includes the composition of volumes, the management of volumes and the deletion of volumes (deleting segment units in volumes). an explanation.

[0033] 1. Volume Composition

[0034] Each volume volume is based on the segment segment, and each segment segment includes multiple segment unit segment units, the segment unit segment unit is the smallest unit of data storage, distributed on the disk of the data node datanode, where the segment unit segment unit Including the primary segment unit and the secondary segment unit. The primary segment unit ...

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Abstract

The invention discloses a method for deleting volumes in a distributed storage system, which comprises the following steps that: S1, an information management center receives a volume deleting requestand marks volumes required to be deleted; S2, if the data node reports the segment units of the volume required to be deleted to an information management center, the information management center marks the segment units to be deleted in the information returned to the data node, and the data node deletes the marked segment units; and S3, if the segment unit of the volume required to be deleted is not reported to the information management center, the data node where the volume is located is abnormal, and the information management center does not process the segment unit of the volume. The invention further provides a distributed storage system, the information management center receives a volume deletion request sent by a user and then marks the reported segment units so as to delete the marked segment units, volume deletion is carried out in a reporting mode, and normal operation of the system is guaranteed when a data node fault occurs.

Description

technical field [0001] The invention belongs to the technical field of computer storage, and more specifically relates to a volume deletion method in a distributed storage system. Background technique [0002] The distributed storage system is to divide the data according to certain rules and store them scatteredly on multiple independent general-purpose storage servers. Traditional network storage systems use centralized storage servers to store all data. Storage servers become the bottleneck of system performance and the focus of reliability and security, which cannot meet the needs of large-scale storage applications. Distributed storage systems use scalable systems Structure, using multiple storage servers to share the storage load, using the location server to locate the storage information, it not only improves the reliability, availability and access efficiency of the system, but also is easy to expand. Thousands of servers in the storage cluster can make data fully ...

Claims

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Application Information

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IPC IPC(8): G06F3/06
CPCG06F3/0617G06F3/0652G06F3/067
Inventor 王文静王中原陈靓
Owner 南京鹏云网络科技有限公司
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