Method for performing node switching in case of node fault and related equipment

A fault-time, node technology, applied in the direction of response error generation, redundancy in hardware for data error detection, instrumentation, etc., can solve the problem of inability to monitor the status of the main container, and ensure data consistency and reliability. , the effect of improving the accuracy

Pending Publication Date: 2021-01-08
HUAWEI CLOUD COMPUTING TECH CO LTD
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, in practical applications, the backup container may be created temporarily, and may be created on the same physical machine as the main con

Method used

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  • Method for performing node switching in case of node fault and related equipment
  • Method for performing node switching in case of node fault and related equipment
  • Method for performing node switching in case of node fault and related equipment

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[0038]The following describes the technical solutions in the embodiments of the present application clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments.

[0039]First of all, some terms and related technologies involved in this application will be explained in conjunction with the accompanying drawings to facilitate the understanding of those skilled in the art.

[0040]The small computer system interface (SCSI) is an independent processor standard for system-level interfaces between computers and hardware devices (such as hard disks, optical drives, printers, scanners, etc.). SCSI is a universal interface. Host adapters and SCSI peripheral controllers can be connected to the SCSI bus. Multiple peripherals hanging on a SCSI bus can work at the same time. The SCSI interface can transmit data synchronously or asynchronously.

[0041]A container i...

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Abstract

The invention provides a method for performing node switching in case of a node fault and related equipment. A main node and a standby node are connected to a storage device at the same time, but onlythe main node can access user data in storage equipment and does not provide service for a user. The standby node can access a status flag of the main node in the storage equipment. The standby nodecan detect a state mark of the main node stored in the storage equipment in the running period, whether the main node breaks down or not is determined according to the state mark, and when the standbynode determines that the main node breaks down according to the state mark, the standby node replaces the main node. According to the method, under the condition that multiple nodes sharing one storage equipment do not perceive each other, it can be guaranteed that the standby node can accurately perceive the state of the main node, the main node is taken over when the main node breaks down, andthus the application reliability is improved.

Description

technical field [0001] The invention relates to the technical field of cloud computing storage systems, in particular to a method for switching nodes when a node fails and related equipment. Background technique [0002] In cloud computing scenarios, applications that provide services to users are generally deployed in containers on virtual machines or physical machines. In order to ensure the reliability of the service application, each service application corresponds to a main container and at least one backup container, and the main container and the backup container are provided with a common storage device. Under normal working conditions, only the main container can read and write the data in the storage device to provide external services. The backup container cannot read and write the data in the storage device, but can only monitor the status of the main container, and take over the main container when the main container fails. The work of the storage device is upg...

Claims

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Application Information

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IPC IPC(8): G06F11/20
CPCG06F11/2002G06F11/20
Inventor 郑营飞
Owner HUAWEI CLOUD COMPUTING TECH CO LTD
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