摘要
气象数据在民用航空、农业生产、城市气象等领域中的应用日益重要,随着气象事业的迅猛发展,新的观测手段不断涌现,产生了海量的气象数据。现在采用的双机热备架构的双主机模式面临系统效率低、无法实现负载均衡等问题。针对目前传统气象数据库系统在数据吞吐量、高可用性等方面存在的问题,文中介绍了一种基于Oracle RAC双通道技术的系统框架,并在典型应用场景下对系统性能进行测试分析。测试结果表明,该方案利用负载均衡技术提高了海量数据的查询及存储速度,有效提高了系统效率,并实现了故障情况下的无缝对接。
The application of meteorological data has become increasingly important in civil aviation, agricultural production, city weather and other fields. As the rapid development of meteorological service,new means are constantly emerging to obtain meteorological data,so a mass of meteorological data is produced. Now dual host mode in the hot standby architecture is faced with low system efficiency and cannot realize the load balance. For the problems of traditionally meteorological database systems in data throughput and high availability, present a system framework based on dual-channel technology in Oracle RAC, and test the system in the typical application scenarios. Test results indicate that this solution has a better load balance, which effectively improves the processing speed and efficiency of the system and ensures seamless connection under fault conditions.
出处
《计算机技术与发展》
2013年第7期249-252,共4页
Computer Technology and Development
基金
国家自然科学基金资助项目(61202098)
