Using JSTATD deamon with VisualVM for remote profiling

Using JSTATD deamon with VisualVM for remote profiling

1. create tools.policy file:

grant {
  permission java.security.AllPermission;
};

2. run to start jstatd:

jstatd -J-Djava.security.policy=tools.policy

3. check which port is run by jstatd:
lsof -i

useful article:

http://hillert.blogspot.com/2010/01/remote-profiling-of-jboss-using.html
http://stackoverflow.com/questions/7424519/using-visualvm-to-connect-to-a-remote-jstatd-instance-through-a-firewall

Here’s the complete How-to for ubuntu hosts:

1. Get VisualVM, which also includes jstatd:
sudo apt-get install visualvm

2. In your home directory create the file jstatd.all.policy:
nano jstatd.all.policy

3. Fill it with the following content to grant access to every application from any side (if you need fine grained user access permissions, which you most probably will, please have a look at the docs):
grant {
permission java.security.AllPermission;
};

4. Start jstatd and tell it to expose the ip address of the machine running it (instead of using the DNS name):
jstatd -J-Djava.security.policy=jstatd.all.policy\
    -J-Djava.rmi.server.hostname=192.168.178.1
# -J-Djava.rmi.server.hostname=10.82.83.117 -J-Djava.rmi.server.logCalltrue

5. Now fire up VisualVM on another host and click on “File/Add Remote Host…” and enter the ip.