JXM console startup on Ubuntu

Posted Tue, 04/08/2009 - 15:18 by tigor
, ,

Hi Everyone,

i am trying to configure JXM console on Ubuntu and (as usuall) encountered some strange behavior.

It works on my machine :)

it doesn't work on remote server, neither it works on other Itais' laptop.

Hostname and host IP configuration are correct (similar) on all 3 machines.

JVM version, however are a bit different 1.6.06 (the one that works on my machine) 1.6.012 and 1.6.014 the ones that don't work.

Any suggestions ?

‹ user management $ profiling Is there a way to see what the values of the arguments that are sent into a method in Java? (source or bytecode) ›

Comments

by mark - 04/08/2009 - 15:55

If you mean JConsole - for me it works with jdk1.6.0_14 / Ubuntu
How do you connect ? Local or Remote process?

by tigor - 04/08/2009 - 17:11

one problem case is Local - JConsole does not work, to be more precise - JConsole did not connect to designated IP:Port. Yet JConsole connected to localhost:0 port. ???
Also - HTTP connector DOES work !!!!
another more complicated case - remote connection. This is actually important since we want to monitor remote server. But in this case - nothing works. We are unable to connect neither with JConsole nor with Web interface.

by mark - 04/08/2009 - 17:41

Which process you try monitor?
For me it works with JBoss as local process in case JBoss run with same user I run JConsole
Additional condition, JBoss doesn't allow connect if it runs on 0.0.0.0.
Everything concerning local process only

by shlomo - 05/08/2009 - 07:51

What is the error/exception raised? is it a time out?

Just to make sure, did you set the following JVM parameters:

JAVA_OPTS="$JAVA_OPTS -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.ssl=false -Dcom.sun.management.jmxremote.port=8091 -Dcom.sun.management.jmxremote.authenticate=false"

export JAVA_OPTS

Are you able to connect remotely using for instance Jprofiler ???

by tigor - 05/08/2009 - 10:40

no - i am not using JProfiler. And all configurations are correct. For one i am able to configure the JMX console on my machine properly. But Itai, for some reason is unable to connect to my machine either.
I think there some Ubuntu constraint on ports and data transmitted via ports. On Windows everything runs smoothly as well.

by itai - 05/08/2009 - 10:51

Did you check iptables -L on Itai machine ?

by shlomo - 05/08/2009 - 11:33

I know you are not using Jprofiler, try using it just to differentiate the cause (software or OS).