摘要
为了满足分布式实时数据库中对关键数据的强一致性和系统中各个节点数据副本的完整性的要求 ,提出了基于网关式的主副本复制技术的方案 ,很好地实现了分布式实时数据库的异地镜像功能。从成功用于电力系统的配调综合自动化管理 (SCADA)系统的实效来看 ,文中所述思想可行 ,整个系统对在传输系统关键数据时能迅速准确同步更新到网络中的各个节点 。
In order to meet the requirement of strong consistency for the key data and integrity of data copy in each node in distributed real-time database,this paper presents the solution of primar copy replication technology based on gateway pattern,which effectively implements the function of speedy distributed mirror image of distributed real-time database system.As for the effectiveness that is successful to be used to SCADA system of power system,the idea described in this paper is feasible,and the net nodes can be updated fast、accurately and synchronously as the system transmits the key data.And also the system can operate reliably for a long time.
出处
《电脑开发与应用》
2004年第10期31-33,共3页
Computer Development & Applications
关键词
分布式实时数据库
数据副本
数据同步
镜像功能
网关
复制
强一致性
节点数
传输系统
可靠
synchronous replication,gateway mode,data replication,distributed mirror image,real-time database,distributed,strong consistency,weak consistency
