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From Pieter Temmerman <ptemmerman....@sadiel.es>
Subject Re: [OT] [Tomcat] [daemon] java.lang.OutOfMemoryError unable to create new native thread
Date Thu, 05 Feb 2009 17:24:13 GMT
The disadvantage of running these tools on the server that also runs
Tomcat is that these tools generate certain load, which under some
circumstances is not wanted as it might influence the stats.

On Thu, 2009-02-05 at 14:15 +0100, André Warnier wrote:
> Mark Thomas wrote:
> > Peter Crowther wrote:
> >>> From: André Warnier [mailto:aw@ice-sa.com]
> >>> using XMing as the X11 server (client?, I can never remember..).
> >> Yeah, X's terminology is very counter-intuitive - I get comments of "you're
kidding" every time I teach it.  An X server serves out the keyboard, mouse and display. 
X11 clients connect to the X11 display server in order to display their output and get their
input.
> >>
> >> All of which means that you often use an X server running on your workstation
or "thin client" to connect to X client programs running on your application/web/... server.
> > 
> > You might also want to look at
> > org.apache.catalina.mbeans.JMXAdaptorLifecycleListener in
> > http://tomcat.apache.org/tomcat-5.5-doc/monitoring.html
> > 
> > Something similar also exists for 6.0.x
> > 
> Thanks Mark.
> That page is a bit obscure for someone like me not making Tomcat and 
> Java their main focus, but do I understand it correctly in that it would 
> mean that the variable second port connection would no longer be 
> variable, thus allowing JConsole to connect to it through 2 pre-created 
> SSH tunnels (as long as one inserts the indicated Listener element in 
> the server.xml of a Tomcat 5.5.25+ ) ?
> 
> (admittedly, some people might consider this question a bit obscure too)
> 
> As a secondary question, does the fact of adding such a Listener have 
> any discernable impact on Tomcat's performance (when JConsole is not in 
> use) ?
> 
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-- 
Pieter Temmerman
email: ptemmerman.ext@sadiel.es
skype: ptemmerman.sadiel

SADIEL TECNOLOGÍAS DE LA INFORMACIÓN, S.A. http://www.sadiel.es.




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