摘要
OracleRAC架构是从Oracle9i开始采用的一项新技术,是高可用性的一种,也是Oracle数据库支持网格计算环境的核心技术。RAC的性能主要取决于Cache Fusion的性能。通过分析Cache Fusion的原理以及产生等待事件的原因,利用分区技术分散实例的数据请求,减少Cache Fusion的压力,充分发挥了RAC的性能。
Oracle RAC architecture is a new technology high-availability technology, and also is the core technology which began to be used from Oracle9i. It is a kind of of Oracle database support for grid computing environment. The performance of RAC mainly depends on the performance of Cache Fusion. Through analyzing the principle of Cache Fusion and the reasons of generated wait events, and taking the advantage of Partition technology to scatter data request of instance, it can reduce the pressure of Cache Fusion, and fully play the performance of the RAC.
出处
《计算机系统应用》
2012年第3期190-192,共3页
Computer Systems & Applications
关键词
高可用集群
性能调优
复合分区表
等待事件
high availability clusters
performance tuning
composite partitioned table
wait events
