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Virtual machine hybrid standby dynamic reliability assessment method based on mode transfer

A mode transfer, virtual machine technology, applied in the field of cloud computing, can solve problems such as reliability deterioration, virtual machine failure rate increase, and system operation risk increase.

Active Publication Date: 2019-08-30
NORTHEASTERN UNIV
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  • Claims
  • Application Information

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Problems solved by technology

As the running time increases, the virtual machine will inevitably be affected by factors such as its own aging and high concurrency of service requests. The failure rate of the virtual machine tends to increase, and the reliability gradually deteriorates, thereby increasing the operating risk of the system.

Method used

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  • Virtual machine hybrid standby dynamic reliability assessment method based on mode transfer
  • Virtual machine hybrid standby dynamic reliability assessment method based on mode transfer
  • Virtual machine hybrid standby dynamic reliability assessment method based on mode transfer

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Embodiment Construction

[0117] The invention will be further described below in conjunction with the accompanying drawings and specific implementation examples. All experimental data come from the online ordering cloud service system for air tickets. This cloud service system mainly provides multiple cloud services such as registration, login, ticket purchase, query, and refund. The experiment uses HPZ820 workstation to build the cloud service system, install Ubuntu KylinLinux18.10x86_64 system, KVM virtualization software, Nginx load balancer, Tomcat Web middleware, MySQL database on the workstation, and load the cloud service performance adaptive optimization software package. And add an electrical condition monitor for each server to monitor system power consumption information. The experiment uses Collectd+InfluxDB+Grafana tools to monitor the running status information of the virtual machine.

[0118] A dynamic reliability evaluation method for virtual machine hybrid standby based on mode transf...

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Abstract

The invention provides a virtual machine hybrid standby dynamic reliability assessment method based on mode transfer. The virtual machine hybrid standby dynamic reliability assessment method comprisesthe following steps: collecting resources and performance data, and carrying out characteristic selection and standardized processing; predicting the failure probability of the virtual machine basedon HSMM for the standardized data; and carrying out reliability assessment on a cold and hot backup cloud system based on a multi-value decision diagram. In order to accurately and quantitatively evaluate the reliability of the system, the virtual machine hybrid standby dynamic reliability assessment method simplifies the terminal value of the MDD, takes the sum of the occurrence probabilities ofall paths from the root node to 1 as the reliability of the system, divides the virtual machine into three different modes, namely an operation mode, a cold backup mode and a hot backup mode, adopts mode transfer to enable the standby virtual machine to replace a failed working virtual machine to maintain system operation when needed, and adopts a multi-value decision diagram for reliability assessment. Through three groups of contrast tests, the average response time and failure rate of the method are verified to be low, and the reliability is high, and the correctness of the method is verified from the side.

Description

technical field [0001] The invention belongs to the field of cloud computing, and in particular relates to a dynamic reliability evaluation method for virtual machine hybrid standby based on mode transfer. Background technique [0002] Today, with the rapid development of network technology, the structure of cloud systems is becoming more and more complex, and fault-tolerant technologies are diversified. People have higher and higher requirements for system reliability. It has become an important research topic to make a comprehensive and accurate reliability assessment for cloud systems. As the running time increases, the virtual machine will inevitably be affected by factors such as its own aging and high concurrency of service requests. The failure rate of the virtual machine tends to increase, and the reliability gradually deteriorates, thereby increasing the operating risk of the system. In order to make an accurate quantitative evaluation of system reliability, it is ...

Claims

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Application Information

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IPC IPC(8): G06F11/00G06F9/455
CPCG06F9/45558G06F11/008
Inventor 郭军刘文凤张斌刘晨侯帅侯凯李薇柳波王嘉怡王馨悦张瀚铎张娅杰
Owner NORTHEASTERN UNIV
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