一种分布式地理元数据同步机制

罗显刚; 丰荣祥; 谢忠

doi:10.3799/dqkx.2010.051

一种分布式地理元数据同步机制

doi: 10.3799/dqkx.2010.051

罗显刚^{1, 2,},
丰荣祥^{1, 2},
谢忠^{1, 2}

1.
中国地质大学信息工程学院，湖北武汉 430074
2.
武汉中地数码科技有限公司，湖北武汉 430074

基金项目:

国家重点“863”项目 2009AA12Z211

国家重点“863”项目 2007AA120503

中央高校基本科研业务费专项资金 CUGL090235

详细信息

作者简介:
罗显刚(1980－)，男，硕士，主要从事数字制图与地理信息系统、WebGIS和网络三维研究.E-mail: billlxg@126.com

中图分类号: TP393
计量
- 文章访问数: 2766
- HTML全文浏览量: 71
- PDF下载量: 59
- 被引次数: 0
出版历程
- 收稿日期: 2010-01-15
- 刊出日期: 2010-05-01

A Synchronization Mechanism of Distributed Geographic Metadata

LUO Xian-gang^{1, 2
,},
FENG Rong-xiang^{1, 2},
XIE Zhong^{1, 2}

1.
Faculty of Information Engineering, China University of Geosciences, Wuhan 430074, China
2.
Wuhan Zondycyber Co., Ltd., Wuhan 430074, China

摘要

摘要: 在分布式环境中，各个结点通常需要共享使用其他结点的地理元数据.为了能够实现结点间地理元数据的相互共享，又能够保证每个结点具有较高的独立性与自治性，基于“国土资源信息集成与共享平台机制”项目，自行设计消息队列，提出了一种基于XML (extensible markup language) Web服务的数据同步机制.通过该同步机制，弱化了中心和结点的概念，实现了物理结构模式下无中心的架构，使得各个结点之间能够主动进行数据同步共享，存储同一数据的不同副本，从而较好地达到了数据同步的目标.
- 元数据 /
- 数据同步 /
- 消息队列 /
- XML Web服务
Abstract: In the distributed environment, each node usually has to share the geographic metadata of other nodes. In order to achieve the target and ensure high independence and autonomy of each node, based on "Information integration and sharing of land resources platform mechanism" project and special message queue designed, we launch a data synchronization mechanism based on XML Web Service. Through the synchronization mechanism, it weakens the concept of center and nodes, achieves non-center structure under the physical structure and makes each node share data actively and store different copies of the same data, achieving the target of geographic metadata in a better way.
- metadata /
- data synchronization /
- message queue /
- XML Web Services

HTML全文

图 1 分布式地理元数据同步体系结构

Fig. 1. Synchronization system structure of distributed geographic metadata

下载: 全尺寸图片幻灯片

图 2 分布式地理元数据同步机制流程

Fig. 2. Synchronization mechanism of distributed geographic metadata

下载: 全尺寸图片幻灯片

参考文献(24)

[1]	Chen, H.L., Cheng, W.Q., Wu, D., 2006. Implementation and application of data synchronization strategy based on Web services. Computer Technology and Development, 16(9): 160-162 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-WJFZ200609054.htm
[2]	Cui, W., Wang, S.L., 2007. Research and implementation of maintaining data synchronization in distributed system. Computer Engineering and Design, 28(10): 2259-2261 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SJSJ200710004.htm
[3]	Huang, X.X., Nie, R.H., Luo, H.Q., et al., 2009. Study and implementation of data synchronization based on SOA. Computer Engineering and Design, 30(14): 3338-3340, 3435 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-SJSJ200914024.htm
[4]	Li, C.L., Li, F.D., Luo, X.G., et al., 2006. Framework and its realization of grid node compute pool of the national geological spatial information. Land and Resources Information, 5: 2-8 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-GTZX200605001.htm
[5]	Liu, X.H., 2002. . Net Web service guide. Publishing House of Electronics Industry, Beijing (in Chinese).
[6]	Shen, M., Xu, H.H., Ji, Y.H., et al., 2005. Implementation of data synchronization for distributed heterogeneous database. Computer Engineering and Applications, 5: 184-186 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-JSGG20050501N.htm
[7]	Shi, J.L., Ye, D., 2008. Design and implementation of a data synchronization system. Computer Systems Applications, 9: 12-14, 97 (in Chinese with English abstract). http://www.c-s-a.org.cn/ch/reader/create_pdf.aspx?file_no=20080904&flag=&journal_id=cas&year_id=2008
[8]	Tan, Y.Q., Qi, W.D., Diao, X.C., 2005. Data synchronization scheme crossing different security domains. Journal of PLA University of Science and Technology (Natural Science Edition), 6(4): 330-333 (in Chinese with English abstract).
[9]	Wang, W.F., Zhang, Z.H., 2003. Replication mechanism and its application in distributed database systems. Computer Engineering & Science, 25(1): 88-91 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-JSJK200301025.htm
[10]	Wu, X.C., 2009. Datacenter integration development technology: the next generation GIS architecture and development model. Earth Science—Journal of Chinese University of Geosciences, 34(3): 540-546 (in Chinese with English abstract). doi: 10.3799/dqkx.2009.060
[11]	Wu, X.C., Wu, L., 2006. Service-oriented distributed spatial information supporting system. Earth Science—Journal of Chinese University of Geosciences, 31(5): 585-589 (in Chinese with English abstract).
[12]	Xu, S.W., Xi, Z., Huang, Z.C., 2006. Research and design of isomerism distributed multilevel spatial data center. Earth Science—Journal of Chinese University of Geosciences, 31(5): 624-629 (in Chinese with English abstract). http://en.cnki.com.cn/Article_en/CJFDTOTAL-DQKX200605009.htm
[13]	陈红亮, 程文青, 吴砥, 2006. 基于Web服务的数据同步机制的研究与应用. 计算机技术与发展, 16(9): 160-162. doi: 10.3969/j.issn.1673-629X.2006.09.055
[14]	崔伟, 汪诗林, 2007. 分布式系统中数据同步机制的研究与实现. 计算机工程与设计, 28(10): 2259-2261. doi: 10.3969/j.issn.1000-7024.2007.10.005
[15]	黄序鑫, 聂瑞华, 罗辉琼, 等, 2009. 基于SOA的数据同步技术研究与实现. 计算机工程与设计, 30(14): 3338-3340, 3435. https://www.cnki.com.cn/Article/CJFDTOTAL-SJSJ200914024.htm
[16]	李超岭, 李丰丹, 罗显刚, 等, 2006. 国家地质空间信息网格结点计算池构架及其实现. 国土资源信息化, 5: 2-8. https://www.cnki.com.cn/Article/CJFDTOTAL-GTZX200605001.htm
[17]	刘晓华, 2002. . Net Web服务开发指南. 北京: 电子工业出版社.
[18]	沈敏, 徐华虎, 季永华, 等, 2005. 基于XML的分布式异构数据库数据同步系统的研究. 计算机工程与应用, 5: 184-186. https://www.cnki.com.cn/Article/CJFDTOTAL-JSGG20050501N.htm
[19]	时俊苓, 叶丹, 2008. 一个数据同步系统的设计及实现. 计算机系统应用, 9: 12-14, 97. https://www.cnki.com.cn/Article/CJFDTOTAL-XTYY200809005.htm
[20]	谈永奇, 齐望东, 刁兴春, 2005. 一种跨越不同安全域的数据同步方案的设计和实现. 解放军理工大学学报(自然科学版), 6(4): 330-333. https://www.cnki.com.cn/Article/CJFDTOTAL-JFJL200504005.htm
[21]	王婉菲, 张志浩, 2003. 分布式数据库系统的复制机制及应用. 计算机工程与科学, 25(1): 88-91. https://www.cnki.com.cn/Article/CJFDTOTAL-JSJK200301025.htm
[22]	吴信才, 2009. 数据中心集成开发技术: 新一代GIS架构技术与开发模式. 地球科学——中国地质大学学报, 34(3): 540-546. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200903020.htm
[23]	吴信才, 吴亮, 2006. 面向服务的分布式空间信息支撑平台. 地球科学——中国地质大学学报, 31(5): 585-589. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200605001.htm
[24]	徐世武, 谢忠, 黄志超, 2006. 分布式异构多级空间数据中心的研究与设计. 地球科学——中国地质大学学报, 31(5): 624-630. https://www.cnki.com.cn/Article/CJFDTOTAL-DQKX200605009.htm