0

I have a webservice on amazon ec2 running on glassfish 4 server, I tried to connect visualvm to the server but it were impossible, so I followed this tutorial (http://looksok.wordpress.com/2012/02/10/remote-use-of-visualvm-with-xming/), I installed the plugin glassfish in the server jvisualvm, and now I can monitor glassfish, but i cant do a heap dump to see my application use of memory detailled. How can I do?

Error trying heap dump

John Saunders
  • 160,644
  • 26
  • 247
  • 397
RoberV
  • 587
  • 5
  • 22
  • Did you try right-clicking the application in the Applications window and selecting Heap Dump? – Amir Afghani Dec 01 '14 at 17:52
  • I edit my question and post a screenshot. I try right-clicking glassfish on the left menu, and selecting heap dump, but it show me the error that you can see on the screen-shot. – RoberV Dec 02 '14 at 17:54
  • you might not have privileges to take the heap dump. Are you running the process as a privileged user? – Amir Afghani Dec 02 '14 at 19:38
  • Yes I run it as sudo – RoberV Dec 05 '14 at 17:44
  • Unlike forum sites, we don't use "Thanks", or "Any help appreciated", or signatures on [so]. See "[Should 'Hi', 'thanks,' taglines, and salutations be removed from posts?](http://meta.stackexchange.com/questions/2950/should-hi-thanks-taglines-and-salutations-be-removed-from-posts). BTW, it's "Thanks in advance", not "Thanks in advanced". – John Saunders Jan 13 '15 at 13:12

1 Answers1

1

You can use the jmap tool in the JDK to create an HPROF format heapdump: http://docs.oracle.com/javase/6/docs/technotes/tools/share/jmap.html

As an example, with the PID of your GlassFish in the screenshot above, the command would be as follows:

jmap -dump:file=/path/to/my/dumpfile.hprof 1376

You could also use jps to find the process ID:

jps -v

The -v flag makes the output verbose, giving you more information to tell which process is the right one.

Mike
  • 4,852
  • 1
  • 29
  • 48