一种高效的全球DNS智能调度系统研究  

Research on an Efficient Global DNS Intelligent Scheduling System

作　　者：徐翔[1] 任昌燕 管黎晨 林水淼 XU Xiang;REN Chang-yan;GUAN Li-chen;LIN Shui-miao(China Central Television,Beijing 100020,China;Wangsu Science&Technology Co.,Ltd,Shanghai 200030,China)

机构地区：[1]中央电视台,北京100020 [2]网宿科技股份有限公司,上海200030

出　　处：《新一代信息技术》2019年第22期33-38,共6页New Generation of Information Technology

摘　　要：当前DNS智能调度系统,在静态DNS域名解析过程中,无法实现通过系统对用户访问情况的分析,进行跨CDN服务商的快速业务调度。因此,设计一种高效的全球DNS智能调度系统,本系统分为数据采集模块、数据分析模块、决策模块、APP接口服务模块和配置模块,并根据定时聚合算法计算了调度银子,统根据用户体验数据、资源(带宽)成本等能力,制定相应的调度方法,进行跨CDN服务商的业务调度,并实时(或周期性)地调整DNS解析方案。经测试证明,所设计系统能够快速决策实现跨CDN厂商的高效智能调度,缓解高峰期及单个CDN厂商无法满足覆盖等压力,配置界面可根据不同业务情况灵活修改参数,有效的增强了系统的灵活性和可靠性。In the current DNS intelligent scheduling system,during the static DNS domain name resolution process,the system cannot analyze the user's access situation and perform rapid business scheduling across CDN service providers.Therefore,an efficient global DNS intelligent dispatching system is designed.The system is divided into a data acquisition module,a data analysis module,a decision module,an APP interface service module,and a configuration module.The scheduling silver is calculated based on the timing aggregation algorithm,and the system is based on the user experience.Data,resource(bandwidth)costs,etc.,formulate corresponding scheduling methods,perform business scheduling across CDN service providers,and adjust DNS resolution schemes in real time(or periodically).The test proves that the designed system can quickly make decisions to achieve efficient and intelligent scheduling across CDN vendors,alleviating pressures such as peak periods and failure of a single CDN vendor to meet coverage.The configuration interface can flexibly modify parameters according to different business conditions,effectively enhancing the flexibility of the system Sex and reliability.

关 键 词：跨CDN 智能调度 服务质量及成本 

分 类 号：TP393.09[自动化与计算机技术—计算机应用技术]