Where is jconsole

The program is compiled and executed with JRE 8. On starting JConsole, we can see that there are three Java processes running on the system. The first one is Eclipse, the second one is the JConsole instance itself and the third one is the Java application that we started using Eclipse. The process name will be visible as the fully qualified name of the Java class with the main function. To enable JMX monitoring for these applications. If you are using the command prompt to run your java program, you need to add the VM argument after java and before the class name.

But you will not be able to connect to it. The process even though visible in the list of Java process, cannot be monitored using JConsole. So make sure to add the above argument if you want to monitor it locally.

For example, you cannot see a long description of an attribute in JConsole. You can also select JConsole from the Start menu if Windchill shortcuts are installed.

For detailed instructions on using JConsole to manage and monitor applications, use the following URL:. After you start JConsole, you can see the list of Java processes that are running locally under the current user ID and that are configured to allow JMX connections.

The window presented is similar to the following:. Each line displayed in the table indicates the process ID and the main Java class that is being run. In this example, the server manager and method server are easily identifiable by their class names. The Tomcat process is now listed under individual method servers as Tomcat is embedded in each method server. For Tomcat process details, see the Catalina node under the method server. You'll see a main window similar to Figure A.

The Memory tab is used to monitor the memory consumption of the monitored application. To check for memory leaks in your application, you can start a load test to create a constant load on the application. If the functionality you're testing during the load test does not contain a memory leak, the memory usage should stay between a specific upper and lower limit.

See Figure B. Monitoring memory consumption is just one of the useful things you can do with JConsole. You can also monitor CPU usage, detect deadlocks on the Threads tab, and use the MBeans tab to monitor or manage specific parts of the JVM or the application running in it. Peter V. Mikhalenko is a Sun certified professional who works as a business and technical consultant for several top-tier investment banks. Get weekly development tips in your inbox Keep your developer skills sharp by signing up for TechRepublic's free Web Developer newsletter, delivered each Tuesday.

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