JRockit Management Console User Guide (JRockit 5.0 R26)

Introduction

The BEA JRockit Management Console that is described in this document is compatible with the BEA JRockit 5.0 (R26) JVM; a JMX-compliant monitoring tool. It uses the extensive JMX instrumentation of the Java virtual machine to provide information on performance and resource consumption of applications running on BEA JRockit. This document contains procedures and information on how to monitor your running applications.

Note:

To monitor a Java application running on JRockit 5.0, you must use the Management Console bundled with JRockit 5.0. Attaching a 1.4.2 console to a JRockit 5.0 process does not work.

The following subjects are covered in this chapter:

What is New in the BEA JRockit Management Console

The BEA JRockit Management Console is now part of the JRockit Mission Control 1.0 tools suite. This means that the Management Console is still free of charge, but parts relating to the other tools in the suite, such as starting JRA (JRockit Runtime Analyzer) recordings, will require a license.

For a complete list of the enhancements for this release, please see the Release Notes.

JRockit Mission Control License Information

The following license types are currently available:

Developer License—The Developer License is free and allows JRockit to run the tools for one hour.
Enterprise License—The Enterprise License allows unlimited use of the tools. It is bound to an IP address.

To download the license you need, please visit:

http://dev2dev.bea.com/jrockit/tools.html

Console Overhead

The extra cost of running the Management Console against a running BEA JRockit JVM is small and can almost be disregarded. This provides for a low cost monitoring and profiling of your application.

Note:

We do not recommend that you run the Management Console on the same machine as the JRockit you are monitoring. If you run the Management Console on the same machine, the Management Console GUI will steal valuable resources from the applications running on the JVM and you risk performance degradation as a result.

About this User Guide

This document shows you what information you can get from your Java Virtual Machine (JVM), how to get that information, and how to interpret it. This user guide assumes that you know what a JVM is.

Finding Additional Information about BEA JRockit

You can find additional information about BEA JRockit throughout the BEA JRockit documentation set. For a complete list of available documents, please refer to the BEA JRockit JDK Online Documentation