To monitor or monitoring generally means to be aware of the state of a system. Below are specific examples: [http://en.wikipedia.org/wiki/Monitoring]
The latest release of the Java platform includes a number of new system monitoring and management features. In this article, three developers from the IBM Java Technology Centre team up to get you started using this API. After a quick overview of the
java.lang.managementpackage, they guide you through a number of short practical scenarios to probe the performance of a running JVM.
Among the many new features introduced in version 5.0 of the Java 2 platform is an API that enables Java applications and compliant tools to both monitor and manage a Java virtual machine (JVM) and the native operating system on which it runs. In this article, you will learn about capabilities of this new platform management API, which is housed in the
java.lang.managementpackage. This article gets you quickly up to speed with a new set of powerful features that will become more important in future Java platform releases.
Munin the monitoring tool surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort.
Using Munin you can easily monitor the performance of your computers, networks, SANs, applications, weather measurements and whatever comes to mind. It makes it easy to determine "what's different today" when a performance problem crops up. It makes it easy to see how you're doing capacity-wise on any resources. [Site]
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