I'm still trying to work through this so bare with me. (Currently we do have JBoss3.2.6 running on Java5 .. .and we definitely plan to upgrade, but it's going to be a big undertaking due the way the current app build process is set up, but that's another issue.) Right now we have an issue where we are sometimes running out of heap space and I want to start profiling a certain condition so I'd like to get this jboss profile to work, unless someone has a better suggestion of a tool to use? Couple quick questions/comments. So far, I've modified the run java opts to include -javaagent:jboss-profiler.jar -Djboss-profiler.properties=jboss-profiler.properties I've added asm.jar to my jbossas/bin dir and I added it to the jboss classpath in the startup script. After starting up jboss locally, I then go to my jboss-profiler directory and try to start it as: java -jar jboss-profiler-client.jar startProfiler which returns with the error Can not get connection to server. Problem establishing socket connection for InvokerLocator [socket://localhost:5400/] I'm assuming this is because I've noticed I don't seem to have a Communicator MBean set up in jboss-service.xml ? The read me seems to imply it should exist, but I'm assuming the definition doesn't because I'm on 3.2.6? If I do need to add this, can someone post the sample mbean declaration? When it mentions 3rd party libraries needed in the readme, what are they for? Are those only for the ant build? or do I need to have them on my classpath in order to successfully run the profiler-client? Lastly, assuming I can the above working locally, I'll want to get info on the remote server. I'm a bit confused about how this works. Do I modify the profiler.properties in the remote server bin? Do I modify the mbean declaration as well? Do I just modify the host names in those files on the remote server? That wouldn't make sense since somehow my local profile-client.jar would need to know the info as well I'm assuming? I'm just totally confused. I have to admit the readme is a bit confusing. It has a lot of stuff in there but it's confusing.. for example there is a section called "Running the client" at line 337 - does that have to do with the example above it? Up top at line 237 there is starting the profiler but that has a ton less options. Why at line 337 do you pass in the properties as an arg but not in the startup describe at 237? Am I maybe supposed to be running the jboss-profiler-client.jar out of the jbossas/bin dir? If so, no where does it mention to copy that file into there (it only mentions to copy jboss-profiler.jar). Thanks for your help and patience. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=4150887#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...