Design And Implement Of Service Migration System In Edge Computing

With the rapid development of a new generation of information technology represented by the Internet of Things(IoT),the rapid growth of network traffic has brought higher requirements for data center transmission delays,in order to cope with the corresponding pressure of massive data traffic and remove data limits,Edge computing makes it possible for network institutions to support delay-sensitive services and over-computing services.However,the change in computing architecture also brings new technical difficulties for the provision of services:edge servers have a certain service coverage,and the mobility of mobile terminals will lead to a decline in service quality and even service interruptions,in order to ensure the service of users when they move.Continuity,reducing the delay of service migration and realizing service follow-up,so that the network performance of auto-driving,user AR/VR devices such as the Internet of Vehicles and user AR/VR devices meet the requirements of service continuity,which requires a suitable edge network architecture and mature service migration solutions.In view of the above problems,the main research and implementation of the service migration system in this article are as follows:1)Propose and implement the service layered architecture and chain migration mode,and design the user service agent to study how the service saves its own runtime state and performs data transmission and recovery at the destination node.Systematically set up the complex environment of service migration through Mini-net and other network bandwidth and link control software to study the delay,control plane impact and service quality of service migration and other parameters,which is significant for achieving low-latency service migration;2)The three-tier architecture of the edge system is proposed and implemented,which solves the problem of how services among multiple nodes can discover and communicate with each other,and realize service migration after locating the location of user services.At the same time,a service migration solution based on the service token model and migration permission algorithm was proposed,which successfully solved the problems of delay bottleneck,service disorder and ping-pong migration during the migration process;3)Provides edge system architecture and service migration solutions with micro-service ideas,focusing and solving the problems of micro-service modularization and flexible deployment of control planes,using Spring Clouds and other micro-service technologies to demonstrate controllable service support,deployment and migration in complex networks Performance.In the corresponding system development work,three functional subsystems were first implemented:the user subsystem responsible for user access and service support,the migration subsystem responsible for managing and controlling migration and providing core services,and the system responsible for tracking the service chain and planning tasks,the sent message subsystem.Then the registration center and configuration center are also provided to all connected edge nodes in an integrated manner.The system implements the three levels of remote service invocation,interface caching/local hot backup/data drop table according to the organization form of micro-services and interface conventions.Data persistence support and asynchronous message delivery can fully realize the required scheduled service migration function.Secondly,the user-side and service center-side software and hardware environments required for the experiment were completely built on the four servers,and the corresponding services of the system were run.Finally,use tools such as service stress test and Mini-net to build a suitable network link state and set up multiple sets of bandwidth tests to focus on the migration delay and system performance.In summary,this article abstracts the complex edge computing environment,and designs and implements a service migration system that includes complete functions and migration algorithms to deal with multiple situations.After that,different service migration processes were experimented by constructing corresponding simulation environments,which further optimized system performance and significantly reduced migration delays,realized a highly available and high-performance service migration architecture,and provided a new network architecture that was compatible with it.Featured solutions.