Data Synchronization for Integration Systems based on Trigger

摘要：

the purpose for integration system is to provide a unified, global view to the user over various heterogeneous data sources. The users see only a virtual and global database, and the real data is stored in various heterogeneous data sources in integration systems. In order to speed up query, in generally, a middleware system cache recent querying data. If a cache hit, the data is returned to the user directly without extracting data from various data sources by pose the query to data sources. Although cache can reduce the load on the middleware system significantly, network congestion, and the latency of each request, it brings a question of cache synchronization. That is, a stale cache might be returned to a client. Aimed at this question, in this paper; we propose a data synchronization algorithm based on trigger.

关键词： Heterogeneous source synchronization consistency middleware system trigger

作者: Gao Yang

作者单位: College of Computer Science and Technology, Heilongjiang University, Harbin 150080, China

会议类型: 国际会议

会议名称: 2010 2nd International Conference on Signal Processing System(2010年信号处理系统国际会议 ICSPS 2010)

会议地点: 大连

会议语种:英文

页码: 1991-1993

在线出版日期: 2010-07-05（万方平台首次上网日期，不代表论文的发表时间）