Two-stage media edge cloud scheduling method and two-stage media edge cloud scheduling device

Abstract

The invention discloses a two-stage media edge cloud scheduling method and a two-stage media edge cloud scheduling device, belonging to the field of multimedia network communication. According to the method and device, an online service migration method or a dynamic content deployment method is flexibly adopted to perform resource scheduling according to different variation amplitudes of a user access mode; meanwhile, service flow influenced by the adjustment of a film deployment can be processed by utilizing the online service migration method in the dynamic content deployment process. Therefore, by virtue of the cooperation of the online service migration method and the dynamic content deployment method, firstly, the smooth transition of the scheduling process from the migration stage to the deployment stage can be realized in the process that the user access mode is varied along with the time, and the high request acceptance rate of media edge cloud can be guaranteed by virtue of reasonable cost; secondly, complete transparency of the scheduling process to the user service can be realized; thirdly, the influence of the jitter of the user access mode on the request acceptance rate can be effectively avoided.

Description

technical field [0001] The present invention relates to the field of multimedia network communication, in particular to a two-stage cooperative media edge cloud scheduling method and device. Background technique [0002] In recent years, with the increase in the number of network users and the popularity of mobile terminals, large-scale concurrent user requests for access and multi-terminal access methods are becoming new challenges for streaming media service systems. However, traditional streaming media service systems based on CDN (Content Distribution Network) technology, P2P (Peer-to-Peer Network) technology or cluster technology have certain limitations in terms of scalability, reliability, and service encapsulation capabilities. [0003] The rise and development of cloud computing has promoted the transformation of streaming media services to cloud forms. Streaming media cloud is the product of the combination of streaming media and cloud computing technology, which ...

AI Technical Summary

Problems solved by technology

1) Unreasonable video deployment

In a dynamic streaming media service access environment, since the popularity of movies is constantly changing, when the user access pattern changes greatly, the original media edge cloud with stable service performance will not be suitable for the current movie deployment. User access mode, resulting in a serious drop in request acceptance rate

2) Unreasonable distribution of service flow

[0006] The online service migration method uses the online service migration technology to migrate the service flow from the high-load node to the low-load node to re-adjust the distribution of the service flow on each virtual service node; although the online service migration method has the advantage of low adjustment cost, However, it does not address the underlying problem that current film deployments may not be suitable for changing user access patterns; therefore, the live service migration approach is only applicable when user access patterns have changed little

In addition, the traditional online service migration technology is an application layer migration technology, which requires the use of RTSP proxy nodes as a medium; when the number of streaming media service access is large or the number of service flows to be migrated is large, the proxy node often becomes the performance bottleneck of the streaming media service system; Moreover, the application layer migration technology does not consider the problem of network layer state synchronization, so it is only applicable to local clustered streaming media service systems

[0007] The dynamic content deployment method dynamically adjusts the number and placement of various film copies according to the changing trend of user access patterns, which can greatly improve the request acceptance rate of the entire system; however, it does not take into account the problem of service flow migration. That is, simply using the dynamic content deployment method will often cause some service streams to be interrupted due to the deletion of movie copies, thereby affecting the quality of service for users

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