VisualVM

I am trying to use the visualvm program that comes with the JDK to profile a webapp running in Tomcat. I have no problems connecting and everything looks nice and works properly in the GUI, except that my classes do not show. When profiling, using the CPU screen, I only see catalina and a few other classes' methods listed. How can I have visualvm show the method invocations of the webapp that Tomcat is running (rather than just Tomcat itself)? If it helps: This is with Tomcat 6.0.26 and JDK 1.6.0.22 Tomas Hurka First use the Sampler plugin . It will give you overall picture what is going on.

I am trying out the VisualVM program that comes with the new JDKs. I am doing profiling on it and trying to profile CPU on only methods in a particular package. I put the following in the "Profile Only Classes:" jig.* Where jig is the package I want to instrument. Unfortunately I get back results on other methods that are not in that package or any subpackages. The only way I can reproduce your problem is if I leave the "Profile new Runnables" box checked. When I leave that checked, the profiler picks up code started as new threads, even if that code does not meet the filtering criteria. I

What would be the best places to learn fixing a java memory leak ? I have been trying to find good resource over the NET but to my disappointment, I find toy examples being discussed. I am also able to troubleshoot small toy dumps but the real world application dumps are more challenging and give little clue. I have tried tools like Jhat, JMap, VisualVM and MAT. what would be the best place to learn about fixing Java memory leaks ? suggestion of a book is also welcome. thanks in advance. Have you tried searching the internet ? There are many examples . A good search engine will sort them by

I'm trying to profile application that is run by "mvn jetty:run", when I connect VisualVM to it and click on Profile jetty crashes with: Profiler Agent: Waiting for connection on port 5140 (Protocol version: 8) Profiler Agent: Established local connection with the tool # # A fatal error has been detected by the Java Runtime Environment: # # EXCEPTION_ACCESS_VIOLATION (0xc0000005) at pc=0x6da5e5d4, pid=5124, tid=5704 # # JRE version: 6.0_16-b01 # Java VM: Java HotSpot(TM) Client VM (14.2-b01 mixed mode windows-x86 ) # Problematic frame: # V [jvm.dll+0x1ae5d4] # # An error report file with more

How can i change the application name in VisualVM ? I have multiple applications that where started from my IDE, but it's hard to distinguish them, there name are equal and the only difference is the PID. So i want to give them meaningful names, but the menu-item "Rename.." is disabled. How can i rename the application ? It seems to me like rename is only possible on snapshots -> descripion of snapshots Rename and Remove menu item are enabled only for snapshots not for applications. If you want to change the name displayed for the application you can set if through a JVM command line arg when

I have started to use visualvm for profiling my application which I launch in Eclipse. Then I launch visualvm which initially gives believable results. After some time two processes appear in the monitor which consume huge amounts of time. I have not deliberately invoked these. After a time they disappear. Are they an artefact of the profiling process and do I need to worry? Very few of my routines appear in the profile, mainly the libraries they call. Is there a way of showing which routines call the most heavily used ones? It is better to start with CPU sampling, if you don't know which part

I would like to profile my Spring Web Application that is running on Tomcat and Eclipse. I added VisualVM to the Eclipse and followed below steps to run the application for profiling. Right click on the application name > Run As > Run Configuration > Java Application > 'Selected Project' > Set 'org.apache.catalina.starup.Boostrap' as a value for Main class, also selected VisualVM as the Launcher > clicked on Run button. The VisualVM starts but shows following message: "Cannot open requested application" Under local I can see VisualVM, Eclipse and Tomcat. Following exception will be thrown and

I'd like to use visualvm app through an ssh tunnel (to an EC2 machine) using jmx OR jstatd. How do I do this? Here is a list of what has been tried (and failed): (BTW: if visual vm is not appropriate, how do I find memory leaks on a remote machine?) jstatd: attempt: I set up the jstatd server on the EC2 machine (app was already running on it) Then I set up a tunnel mapping local port 3333 to remote port 1099 In VisualVM I tried to connect using jstatd on port 3333 ... none of the processes on EC2 showed up This link says that jstatd opens up another port: http://rukuro-blog.heroku.com/2011/06