无单点故障高性能LAMP集群的构建.doc

无单点故障高性能LAMP集群的构建 摘要 随着计算机技术的泛的应用，人们对其的依赖程度越来越高，计算机的可靠性和可用性便显得由为重要。尽管单台计算机的性能和可靠性在不断提升，但还是有许多现实要求是单台计算机难以完成的。 自从1994年首次采用Beowulf集群以来，集群技术被广泛应用。集群系统在用户面前表现为单一系统映像。连接在网络上的一组PC不具有集群计算机资格，为了构成集群计算机，这些独立PC必须运行可以利用其他计算机的软件，使它们像一个团队那样为了共同的目标协同工作。 本文以目前最流行的web框架LAMP（Linux-Apache-MySQL-PHP）为研究对象，提出了一套高可用并且高性能的集群架构。整个架构分为5层，既分发层，web层，共享存储层，代理层和数据库层。层与层之间相互关联，共同对外提供唯一的服务访问入口。 论文首先对各层使用到的技术做了概括性的介绍，随后依次进行了分析了性能性能有了 The Construction of high availability and high performance LAMP cluster abstract With the development of computer technology and its wide application, our dependency on the computer technology becomes more and more high. Computer’s reliability and availability are becoming more important. Though a single computer’s capability and reliability is becoming better, But a single computer can’t complete some request still. Since 1994, the first use of Beowulf clusters, cluster technology has been widely applied. Cluster system behaves as a single system image in front of the user. A group of PC connections in the network does not have the qualification of cluster. In order to constitute a cluster computer, the PC of each station must run a software ,which can use other computer and make them as a team, to a common goal of mutual support. The paper takes LAMP web framework (Linux-Apache-MySQL-PHP) as the research object, put forward a set of high availability and high performance cluster architecture. The whole structure is divided into 5 layers. the distribution layer, web layer, shared storage layer, agent layer, and database layer. There is a close relationship between each layer, and they provides a unique service entrance。 The paper has make a general introduction to the system. Then it introduces the working principle of each layer and the realization of the process. I also install the PHP forum in the whole system, to verify whether it can work normally, and then gives test report of the performance, and compared with the single architecture, testing its p