异地分布式存储环境下的产品数据一致性控制技术

为了解决分布存储机制所带来的产品数据一致性问题，依据产品数据的产生位置和使用属性，设计了基于主副本的产品数据分布存储策略，同时，在异地企业间设计并使用了主一辅服务器协同的并行处理机制。通过基于数据全相关的产品数据一致性更新技术，解决了异地产品数据之间的主副本一致性实时更新问题；通过基于自顶向下的产品数据一致性检查技术，实现了盟主企业的产品中心数据库和联盟企业的产品次级数据库的主动核对和自动检查。两种一致性控制策略的协同工作，较好地解决了产品数据异地分布式存储环境下的一致性控制问题，并以航空某企业联盟为应用背景，进行了应用验证。

Consistency Control Techniques for Distributed Product Data Store Environment

In order to settle the problem of product data consistency under the distributed environment among dynamic alliance enterprises, the distributed store strategy of product data based on original and duplicate data cooperation technique is designed and the coordinate process structure based on multi-server cooperation is setup according to the creating position and using attribute of product data. The problem of real-time consistency updating between the original and duplicate product data is solved by consistency updating technique based on all-associated data. Further more, the initiative and automatic check between the central and secondary product databases among dynamic alliance enterprises is implemented by top-down product data consistency checking technique. All key enabling techniques have been practiced in an aviation project and the approaches proposed have been verified.