Ganglia是UC Berkeley发起的一个开源集群监视项目，设计用于测量数以千计的节点。Ganglia的核心包含gmond、gmetad以及一个Web前端。主要是用来监控系统性能，如：cpu 、mem、硬盘利用率， I/O负载、网络流量情况等，通过曲线很容易见到每个节点的工作状态，对合理调整、分配系统资源，提高系统整体性能起到重要作用。-Ganglia is a UC Berkeley launched an open source cluster monitoring project, designed to measure thousands of nodes. Ganglia core contains gmond, gmetad well as a Web front end. Is mainly used to monitor system performance, such as: cpu, mem, disk utilization, I/O load, network traffic, etc., it is easy to see the work status of each node through curves, on reasonable adjustment, allocation of system resources, improve play an important role in the overall system performance.