Method for selecting cloud computing service node in underdeveloped network environment

Abstract

The invention relates to a method for achieving estimation, selection and task immigration of a nearest cloud service node through a lower resource consumption rate in an underdeveloped network environment. The method comprises the specific steps that (1) arrangement and preprocessing of anchor nodes are carried out; (2) an initial measurement anchor node is selected; (3) the iterative search for service nodes adjacent to a terminal is carried out. The method is characterized in that an anchor node weighting strategy that the weight is reduced step by step along with the increase of a time delay value on the basis of the characteristics of the underdeveloped network environment is adopted, and a low-cost nearest cloud service node search strategy that the number of measurement anchor nodes is increased step by step is adopted. The method is applicable to any service node positioning scenes based on the Internet; when the calculation process as shown in the figure 1 is adopted for the method, the mode for weighting of the anchor nodes is not limited, and therefore good service nodes are searched for and are provided for a terminal node in an active or passive measurement mode.

Description

technical field [0001] This technical solution belongs to the Internet and cloud computing technology, and is specifically a method for locating service nodes with the shortest delay in an underdeveloped environment. Background technique [0002] At present, in the process of cloud computing service node selection, there are usually random selection, selection based on service capability, selection based on transmission delay and other methods. Since users are very sensitive to the delay of many cloud services, selection based on transmission delay has become an important way to select service nodes. [0003] The selection based on time delay can adopt the method of direct measurement, the method of network coordinates, or the method of GPS positioning. However, the method of direct measurement needs to measure the delay from the terminal node to each service node. When the scale of the service node is large, the resulting measurement overhead may make the service node over...

AI Technical Summary

Problems solved by technology

At the same time, in order to solve the problem that the matching degree between the geographical location of service nodes and the delay value is not high in the underdeveloped network environment, a weighting strategy based on the delay value is proposed to suppress the influence of the mismatch between the location and the delay value.

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