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Distributed storage system fault recovery method and device, terminal and storage medium

A distributed storage and system failure technology, applied in the direction of response error generation, instrumentation, electrical digital data processing, etc., can solve problems such as inability to perform video playback, and achieve the effect of reliable design principle, simple structure, and wide application prospects

Inactive Publication Date: 2020-06-19
SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At this time, a large number of video files are created in the cluster for the video business, and at the same time, the video files are continuously overwritten and written. When the osd is abnormal, the playback of the video cannot be performed.

Method used

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  • Distributed storage system fault recovery method and device, terminal and storage medium
  • Distributed storage system fault recovery method and device, terminal and storage medium
  • Distributed storage system fault recovery method and device, terminal and storage medium

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Embodiment Construction

[0060] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described The embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0061] Key terms appearing in this application are explained below.

[0062] Pg: placement group placement group

[0063] Pgp: placement group for placement purpose placement group

[0064] PG is the number of directories specifying storage pool storage objects;

[0065] PGP is the number of OSD distribution combinations of the stora...

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Abstract

The embodiment of the invention provides a distributed storage system fault recovery method and device, a terminal and a storage medium. The method comprises the steps: searching for a placement groupwhere a lost object is located; deleting the placement group; deleting osd process data corresponding to the placement group and marking the osd process as completed; and checking a cluster state, and checking a cluster fault recovery result according to the cluster state. According to the method, for the cluster exceeding the fault domain, the cluster can continuously provide services to the outside under the condition of not destroying the existing cluster, and cyclic coverage writing and playback scenes needing videos under certain conditions are guaranteed.

Description

technical field [0001] The invention relates to the technical field of design storage, and specifically relates to a fault recovery method, device, terminal and storage medium of a distributed storage system. Background technique [0002] The distributed storage system is a reliable and autonomous distributed object storage, which can provide file system storage, object storage and block storage at the same time. Within the scope of the fault domain, when a node or hard disk fails, such as downtime, power failure and other accidents, the service of this node can be taken over by other standby nodes to ensure the normal provision of services and unaffected business. At this time, the storage Services are still available as normal. [0003] If a disk hardware failure occurs in the cluster and cannot return to normal, another hard disk failure occurs on another node during the disk replacement process and cannot return to normal. As a result, the cluster exceeds the fault dom...

Claims

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Application Information

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IPC IPC(8): G06F11/14
CPCG06F11/1482
Inventor 任洪亮李景要
Owner SUZHOU LANGCHAO INTELLIGENT TECH CO LTD
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