Stream media load balancing method based on task scheduling
A load balancing and task scheduling technology, applied in image communication, selective content distribution, electrical components, etc., can solve problems such as uneven load, low utilization efficiency, poor stability, etc., to improve utilization efficiency and stability, and prevent waste. The effect of resources
Inactive Publication Date: 2015-04-29
ENJOYOR COMPANY LIMITED
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[0007] In order to overcome the problems of uneven load, low utilization efficiency, and poor stability of existing streaming media nodes, the present invention provides a streaming media node based on task scheduling with more uniform load, high utilization efficiency, and good stability. load balancing method
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[0018] The present invention will be further described below in conjunction with the accompanying drawings.
[0019] refer to figure 1 and figure 2 , a kind of streaming media load balancing method based on task scheduling, described balancing method comprises the steps:
[0020] (1), calculate each working status parameter of each streaming media node at each time point, and obtain the working status index of the current time point by weighting each working status parameter;
[0021] (2), each node is arranged in chronological order with the working state indicators of each node in the set period of time to form a multidimensional sequence of the streaming media node, and calculate the covariance matrix of the multidimensional sequence; for each The covariance matrix of the multidimensional sequence of the node is decomposed into the eigenvalue, and the optimal weight w of each working status index of the node is calculated by using the normalized value of the eigenvector ...
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A stream media load balancing method based on task scheduling includes the following steps of firstly, weighting all working state parameters to obtain a working state index of a current time point; secondly, calculating the upper limit value lr of the current newest available logical resource of each node; thirdly, calculating the mean value lc of a used logical resource value of each stream media node within the set time period; fourthly, adding the regulating variable to the upper limit value of each node in a stream media node list if the upper limit value lr of the logical resource value of each node is larger than the mean value lc of the logical resource values, subtracting the regulating variable from the upper limit value of each node in the stream media node list if the upper limit value lr of the logical resource value of each node is smaller than the mean value lc of the logical resource values, and keeping the upper limit values unchanged if the upper limit value lr of the logical resource value of each node is equal to the mean value lc of the logical resource values. The method is more uniform in load, high in utilization efficiency and high in stability.
Description
technical field [0001] The invention belongs to the technical field of video monitoring, and in particular relates to a streaming media load balancing method based on task scheduling. Background technique [0002] With the continuous development of information technology, in addition to the requirements for traditional text and picture information, people increasingly hope to obtain multimedia information such as audio and video. However, the amount of multimedia data such as audio and video is very large. In order to improve user experience, Streaming media technology came into being. In order to ensure that each user can better receive streaming video streams and solve the problem of network congestion, load balancing technology is required. The load balancing technology recommended by the industry adopts a certain strategy, according to the business volume undertaken by each streaming media node at a certain moment, or according to the capacity value set by each streamin...
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IPC IPC(8): H04N21/262H04N21/239H04N21/24
CPCH04N21/26216H04N21/2396H04N21/2402
Inventor 王超群邱淳风肖国华卢国权周毅立李越
Owner ENJOYOR COMPANY LIMITED