A Dynamic Reliability Evaluation Method for Virtual Machine Hybrid Standby Based on Mode Transfer
A mode transfer and virtual machine technology, applied in the field of cloud computing, can solve problems such as deterioration of reliability, increase of failure rate of virtual machines, increase of system operation risk, etc., and achieve low average response time and failure rate, high reliability Effect
Active Publication Date: 2021-11-16
NORTHEASTERN UNIV LIAONING
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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.
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[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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The present invention proposes a virtual machine hybrid backup dynamic reliability evaluation method based on mode transfer, including: collecting resource and performance data, and performing feature selection and standardization processing; for the standardized data, predicting the failure probability of the virtual machine based on HSMM; The reliability evaluation of the hot and cold backup cloud system of the multi-valued decision graph; in order to achieve accurate quantitative evaluation of the reliability of the system, the present invention simplifies the terminal value of MDD, and the sum of the occurrence probabilities of all paths from the root node to 1 as system reliability. And the virtual machine is divided into three different modes, that is, operation mode, cold backup mode and hot backup mode. The mode transfer is adopted to make the standby virtual machine replace the failed working virtual machine when needed to maintain the operation of the system. The multi-valued decision diagram is used to carry out Reliability assessment. Through three groups of comparison tests, it is verified that the average response time and failure rate of the present invention are low, and the reliability is high, and the correctness of the method of the present invention 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 ...
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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 LIAONING