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From Jakub 1983 <jjaku...@gmail.com>
Subject Re: tomcat jmx disabled by default ?
Date Sun, 07 Apr 2013 14:54:06 GMT
Neven,

thx for your reply,

so my question is why when I start my own main without passing
-Dcom.sun.management.* properties I can connect to it with jconsole,
but I cannot connect with jconsole to tomcat (although it is visible in
jconsole) ?

both my main, and tomcat, and jconsole are running on the same laptop.

regards,
Jakub




On Sun, Apr 7, 2013 at 3:49 PM, Neven Cvetkovic
<neven.cvetkovic@gmail.com>wrote:

> Jakub,
>
> "You don't have to" configure Tomcat with above settings to get JMX. You
> are correct that JMX works out of the box. However, that works only
> locally, above commands are for REMOTE JMX access. You are opening up a jmx
> port so external (not same machine) jconsole or jvirtualvm can access JMX
> MBean server your Tomcat is running. Thus, if you want to connect to remote
> Tomcat instance, "you have to provide" JMX connection details, and that's
> what we often do.
>
> The above settings are best configured in CATALINA_HOME/bin/setenv.bat or
> setenv.sh script that you need to create. Even though this script doesn't
> exist by default, startup script calls it if it is created by user. All
> your customizations should be contained there.
>
> Hope that helps. Cheers!
> On Apr 7, 2013 5:59 AM, "Jakub 1983" <jjakub83@gmail.com> wrote:
>
> > why do I have to enable jmx with command
> >
> > *set CATALINA_OPTS=-Dcom.sun.management.jmxremote \
> >     -Dcom.sun.management.jmxremote.port=%my.jmx.port% \
> >     -Dcom.sun.management.jmxremote.ssl=false \
> >     -Dcom.sun.management.jmxremote.authenticate=false*
> >
> >
> > http://tomcat.apache.org/tomcat-7.0-doc/monitoring.html
> >
> > even when I run it *under java 6* ?
> > in java 6 jmx is active by default (it is active when I run my own main),
> > I cannot see how it is disabled by default by tomcat start scripts,
> > but when I run default startup, I cannot connect with jconsole,
> > when I set CATALINA_OPTS as above, it works fine,
> > but why doesn't it work without it ?
> >
> > regards
> > Jakub
> >
>

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