A multi-node hot standby method for metadata service nodes in cloud storage service

A technology of metadata service and cloud storage service, which is applied in the field of cloud storage and multi-node hot backup of metadata service nodes in cloud storage service. Data security, effects of preventing single point of failure

Active Publication Date: 2018-04-13
深圳市安云信息科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The metadata service node plays the role of organizing and controlling the data actually stored in the storage service node. Once the metadata is lost, it is very troublesome to retrieve the file, and even the lost data cannot be retrieved.

Method used

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  • A multi-node hot standby method for metadata service nodes in cloud storage service
  • A multi-node hot standby method for metadata service nodes in cloud storage service

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Experimental program
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Embodiment Construction

[0031] The design idea of ​​the technical solution of this application is: set at least 3 metadata service nodes in the cloud storage system, select one of them as the master node (named as master node), and the others as backup nodes (named as slave node) . The host node provides metadata update services, such as creating folders, deleting folders, modifying folder names, creating files, modifying files, modifying files and other services (reading folder properties, reading file properties and other operations do not involve data update) . Multi-node hot standby is to synchronize the updated metadata to the standby node. When the host node fails, one of the standby nodes is elected as the new host node.

[0032] In order to make the technical principles, features and technical effects of the technical solution of the present application clearer, the technical solution of the present application will be described in detail below in conjunction with specific embodiments.

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Abstract

The invention discloses a multiple-node hot standby method of metadata service nodes in cloud storage service. The multiple-node hot standby method comprises the steps that (A) at least three metadata service nodes are set in a cloud storage system, one metadata service node is selected out to serve as a mainframe node, and the other metadata service nodes serve as standby machine nodes; (B) the mainframe node provides metadata update service and synchronizes updated metadata to the standby machine nodes; (C) when the mainframe node breaks down, one standby machine node is selected from the standby machine nodes to serve as a new mainframe node. By means of the multiple-node hot standby method, single-node faults of the metadata service nodes can be effectively prevented, and accordingly the data safety of the whole system is improved.

Description

technical field [0001] The present application relates to the field of computer network technology, in particular to cloud storage technology, and in particular to a multi-node hot backup method for metadata service nodes in cloud storage services. Background technique [0002] With the continuous improvement of the degree of informatization, the global data is expanding day by day. Facing the current demand for massive data storage, traditional storage systems have bottlenecks in capacity and performance expansion. Cloud storage has been widely recognized by the industry for its advantages such as strong scalability, high cost performance, and good fault tolerance. Cloud storage is a system that integrates a large number of storage devices of different types in the network through cluster applications, grid technology, and distributed file systems, and provides external data storage and business access functions. Simply put, cloud storage is the management and use of virt...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F11/20G06F11/34
Inventor 杨卫华
Owner 深圳市安云信息科技有限公司
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