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Learn more about the Tomcat child process

I have an application that has been deployed with .war in tomcat.

I am getting some problems with CPU consumption in this application and I would like to see some details about its processes. But when I run from the top, I just get something like this:

PID USER PR NI VIRT RES SHR S% CPU% MEME TIME + COMMAND
 2310 app1 20 0 11.1g 1.4g 11m S 191.3 14.5 31: 32.67 java
 21 root 20 0 0 0 0 S 11.7 0.0 0: 29.89 ksoftirqd / 4
 3387 xymon 20 0 15156 1176 792 R 2.0 0.0 0: 00.01 up

  1 root 20 0 19352 1528 1212 S 0.0 0.0 0: 00.54 init

But this only shows that tomcat / java is consuming my cpu. I would like to see what this cat's child process is the problem, but with the top command, just watch the tomcat process.

Thanks for the help.

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You need to configure JMX to find out which processes / threads are consuming time.

Below Java_OPTS can be configured for JMX.



-Dcom.sun.management.jmxremote=true 
-Dcom.sun.management.jmxremote.port=9010 
-Dcom.sun.management.jmxremote.local.only=false
-Dcom.sun.management.jmxremote.authenticate=false 
-Dcom.sun.management.jmxremote.ssl=false

Once this is done, you can use Jconsole or JVisualVM in the JDK directory as part of the JDK installation

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