[1]邹歌[],刘云飞[]. 实时数据分发服务的自动发现技术[J].计算机技术与发展,2017,27(01):20-24.
　ZOU Ge[],LIU Yun-fei[]. Automatic Discovery Technology of Real-time Data Distribution Service[J].,2017,27(01):20-24.
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 实时数据分发服务的自动发现技术()
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《计算机技术与发展》[ISSN:1006-6977/CN:61-1281/TN]

卷:
27
期数:
2017年01期
页码:
20-24
栏目:
智能、算法、系统工程
出版日期:
2017-01-10

文章信息/Info

Title:
 Automatic Discovery Technology of Real-time Data Distribution Service
文章编号:
1673-629X（2017)01-0020-05
作者:
 邹歌[1] ; 刘云飞[2]
 1香港城市大学；2.江苏自动化研究所
Author(s):
 ZOU Ge[1]; LIU Yun-fei[2]
关键词:
 ; 数据分发服务; 发布-订阅; 自动发现; 全局数据空间
Keywords:
 ; data distribution service; publish-subscribe; automatic discovery; global data space
分类号:
TP391.9
文献标志码:
A
摘要:
 DDS是OMG专门针对实时分布式系统颁布的数据分发国际规范，其核心在于提出了“全局数据空间”的思想，从而实现了系统松耦合、强实时、高可靠和高吞吐量等特性。介绍了DDS基本通信模型，总结归纳了核心实体角色间的逻辑关系，分析了“全局数据空间”概念模型，重点研究了构建该模型的关键技术———实体远程自动发现技术，包括域参与者层和发布-订阅端点层的双层自动发现机制，以及实体自动发现的协议过程、控制逻辑和加入/退出的更新机制。利用该技术可以设计和开发系统监控软件，实时监听和分析系统发布和订阅状态信息，记录历史数据，提供完整且直观的系统通信拓扑结构，使开发者更好的理解分布式系统、校正系统设计、调配性能参数、优化系统集成和扩展。
Abstract:
 DDS,a international specification promulgated by Object-Manage-Group (OMG),focuses on real-time distribution system communication and puts forward the key Global Data Space ( GDS) thought,which is decoupling,real-time,high reliability and through-put. The communication model of the DDS is introduced,the logical relationship between the key roles is summed up,and the GDS idea analyzed. Then the Automatic Discovery Technology for remote entities,as the key technology of GDS,is researched,which includes two layer automatic discovery mechanism ( participant layer and pub-sub endpoint layer) ,protocol process of key entities,control logic,and refresh mechanism when joining or leaving. The technology can be used to design and develop system monitoring software,real-time mo-nitoring and analysis of system status information published and subscribed,recording historical data,providing a complete communication topology,which enables developers to better understand the distributed system,calibrate system design,deploy performance parameters and optimize system integration and extension.

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更新日期/Last Update: 2017-04-01