群集系统的高可用性实时处理系统研究

Research about high applicable and redltime clustering system

群集系统可实现不间断实时数据处理,提供高可用性的应用环境.在双机同步工作方式下,两台服务器上同时运行相同的程序,两台服务器上的进程同时接收同样的数据和命令,进行相同计算和处理,采用分布式锁管理器开发应用程序,同时调用DLM编程接口,是最能够充分利用计算机资源,降低服务器的负担的有效解决方式,而且也能够获得效果最好的高可用性,同时有效避免死锁的发生.

Clustering system is to realize live data process and support high available environment,in synchronization working mode of two computers, two servers run the same program and receive the same data and command ,they also do the same calculation and process. If we develop application program with the DLM and its programming interface, we can make full use of computer resource and reduce server＇s burden , at the same time it gains the best high availability and avoids dead lock. Clustering system is to realize live data process and DLM supports a method to access share resource, at the same time it avoids dead lock.