A Tiered Replication Model in Embedded Database Based Mobile Geospatial Information Service

作者：Zhang Yun; Zhang Mu; Bian Fuling

来源：4th International Conference on Wireless Communications, Networking and Mobile Computing, 2008-10-12 to 2008-10-17.

• Mobile Geospatial Information Service
• Embedded Database
• Mobile Transaction
• Tiered Snchronous Replication

In the EDBMGIS (Embedded Database Based Mobile Geospatial Information Service) architecture application, the data of embedded database in the mobile terminal is duplicated from the server. After a period's system operation, data in both the mobile client and server will be changed. In order to keep the data consistency, the synchronization of data on both side is discussed in this paper. In addition, a tiered replication model which is put forward to solve the synchronization problem under 3-tier replication architecture (Mobile client- Synchronization Server Database Server). This model utilizes a novel double time-stamp strategy to promote the efficiency of synchronization. Besides, it ensures serializability and consistency of the mobile database system through transaction-level conflict reconciliation.

• 出版日期2008
• 单位武汉大学