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Method, device and system for migrating cloud virtual machine

A virtual machine migration and cloud system technology, applied in the field of cloud computing, can solve problems such as lack of means and mechanisms for prediction and control, rapid response to difficult loads, failure to consider the impact of PM host failure characteristics on system and task reliability, etc.

Inactive Publication Date: 2014-03-26
CHONGQING RADIO & TV UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the dynamic variability of the system load, it is often difficult for the fixed interval control strategy to respond quickly to the load surge in a short period of time.
[0007] (2) The failure characteristics of cloud hosts are not fully considered
When the existing technology performs VM migration, the main goal is to perform performance optimization and load balancing, without considering the impact of PM host failure characteristics on system and task reliability
[0008] (3) Lack of prediction mechanism
The existing technology always waits for the load to reach a threshold or the host fails before taking measures to migrate the VM, lacking the means and mechanism of prediction and control in advance

Method used

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  • Method, device and system for migrating cloud virtual machine
  • Method, device and system for migrating cloud virtual machine
  • Method, device and system for migrating cloud virtual machine

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Embodiment Construction

[0085] Below in conjunction with accompanying drawing and embodiment the present invention will be further described:

[0086] Such as figure 1 As shown, a cloud virtual machine migration method is characterized in that it comprises the following steps:

[0087] Step 1. Collect the status information of each PM in the cloud system:

[0088] The PM state information includes: for the i-th PM, the running time T accumulated since the latest system recovery / restart i ; For the i-th PM, the interval time D between the last failure and the latest failure i ; For the i-th PM, the latest k times, the measured task load rate of the PM is the ratio R of the number of running VMs to the maximum number of allowed VMs i,1 , R i,2 ,...,R i,k , the interval time of the task load rate measurement is δ, δ>0, i and k are positive integers, and in this embodiment, the value of k is 10, 50 milliseconds>δ>10 milliseconds;

[0089] Step 2. Predict the future load prediction value and future ...

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Abstract

The invention discloses a method for migrating a cloud virtual machine, and belongs to the field of cloud computing. The runtime load change of each host machine of a cloud computing system and the reliability performance of the cloud computing system are dynamically tracked, then the control opportunity is self-adaptively determined, and the virtual machine is migrated among the host machines for responding for the load and reliability change of the system in real time, thus the load balance degree of the system and the task reliability are improved. According to the method, the device and the system, dynamic fluctuation of cloud system load is taken into full consideration, the prospective trend change of the system is predicted by tracking the trend, and the load balance is improved by carrying out VM (Virtual Machine) migration in advance. The failure possibility of PM (Physical Machine) is taken into consideration of the load balance, so that the strategy of VM migration can give consideration to performance and task reliability; meanwhile, variable control interval time is dynamically calculated according to system status, so that two extremes of 'control over-density' and ' control over-sparseness' are avoided.

Description

technical field [0001] The invention belongs to the field of cloud computing, and in particular relates to a cloud virtual machine migration method, device and system. Background technique [0002] Cloud computing is an Internet-based computing method in which shared hardware and software resources and information can be provided to computers and other devices on demand. The cloud computing system virtualizes physical resources into resource pools through virtualization technologies such as system virtualization, multiprocessor virtualization, memory virtualization, and I / O virtualization, and these resources are then uniformly managed and scheduled by the cloud computing platform. [0003] The main computing unit in the cloud system - PM (Physical Machine, physical machine), will produce occasional errors and failures during operation, which will lead to the confusion of task logic and control logic, and then affect the reliability of the system. Since today's cloud comput...

Claims

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Application Information

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IPC IPC(8): H04L29/08H04L12/26
Inventor 李佳江涛周树语
Owner CHONGQING RADIO & TV UNIV
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