When Moodle system load tends to be saturated on an individual server,it should be considered to allocate the over-centralized load to several other servers. The paper makes use of open source software technologies and resources to discuss Moodle system clustering construction scheme,emphasizing on such issues as storage sharing,load balancing and so forth during the collaboration of a number of Web services,moreover,to present a configuration instance. The clustering of Moodle systems helps enhancing the overall performance of the whole system. For a dual web node Moodle cluster, as case analysis illustrates, the average transaction processing capability can be ameliorated by around 60% while the average response time can be reduced by 39% or so.%在单一服务器的Moodle系统负载能力趋于饱和的情况下,应考虑把过于集中的负载分摊给多台服务器.运用开源软件的技术和资源,讨论Moodle系统的集群化建构方案,重点探讨多Web服务器协同工作时需要解决的存储共享、负载均衡等方面的问题,并给出配置实例.Moodle系统的集群化可有效提高系统的整体性能.实例分析表明,对一个双Web节点的Moodle集群系统而言,其事务处理能力平均可提高约60％,响应时间平均可缩短约39％.
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