摘要
大规模实时信息处理系统中,随着系统运行时间增长,其数据库系统中各个帐户下的记录随之大量增加,将影响数据处理系统的速度。对此文章提出了一种数据库记录迁移和清除机制。该机制可自动地按照用户所设置的规则将运行库的数据记录拷贝到归档库中,对比两数据库记录完全一致后,按照一定规则删除运行库中老的数据记录。该机制已在禁核试核查国家数据中心中稳定运行。
In the large scale real time data processing, with the time extend, the data in database system will be expanded, which declines the system capability. To solve the problem, this paper presents a method of migration and purge operations. New or updated database records within a specified time interval can be copied automatically from source database accounts to destination database accounts and the data in the source database will be deleted automatically after a specified period of time according to the rules using the method. The migration and purge operations have been realized in China National Data Center.
出处
《核电子学与探测技术》
CAS
CSCD
北大核心
2008年第3期608-611,共4页
Nuclear Electronics & Detection Technology
关键词
禁核试核查
数据库
动态数据迁移
comprehensive nuclear-test-ban
database
dynamic data migration
