Linux下高可用应用基础体系的设计与实现

Design and implementation of high usability application basic architecture based on Linux

针对应用系统存在分离部署、管理分散、数量众多且大抗单点故障能力不足以及可靠性/可用性差,数据安全性低等问题,提出以Linux平台为基础,运用数据库集群和应用服务器中间件集群技术,结合高安全性和高保密性要求来设计和实现高可用应用系统基础体系的方法和途径。测试的实验结果表明,高可用应用系统基础体系的较普通环境在性能上提升了3倍以上且50个以下的并发用户无业务失败情况,可用率由90%提高到99.95%。以高性能、高可靠、高安全和可扩展等方面的优异能力为企业提供了优质服务。

In the current IT circumstance, most of application systems face the universality problems, such as distributed deploy- ment and management, numerous quantity, single point failure resistible ability deficiency, low usability and reliability etc. A method and approach is put forward, based on Linux platform, and database and App server cluster technique are used, combi- ning with the demand of high usability and security, the high usability application basic architecture is devised and implemented. Through a series of tests and experiments, the result prove that, compared with the common circumstance, the aforementioned architecture can enhance 300 % capability and no failure event occurs with 50 concurrent users. Besides that, the usability can en- hance from 90% to 99. 95%, finally high grade service is offered in the aspect of high ability, reliability, security and expansi- bility.