RE: [Wrapper-user] Service question

[Ori A. <oa...@me...>]

I found a very cool tool that does this for NT services.
www.latenighthacking.com/projects/2003/sendSignal/

However I can not get into this link recently (you can see it on google
cache, I personally think it's a very smart piece of coding, respect to the
author).
It will send a Ctrl+Break to ANY process by PID.
If you can't get a copy and need it I have one, I'm not sure if I can post
it here - how about it Leif?

Ori

-----Original Message-----
From: wra...@li...
[mailto:wra...@li...] On Behalf Of Leif
Mortenson
Sent: Wednesday, October 20, 2004 6:04 AM
To: wra...@li...
Subject: Re: [Wrapper-user] Service question

francesco triti wrote:

>hi,
>i'm trying to integrate java service wrapper with my
>java application.
>
>Since it supports both win and linux it seems too
>great for my.
>
>By the way, i'd like to know if "net pause <<service
>name>>" is enable.
>  
>
Currently the Wrapper does not not support the pause function as there 
is not a
practical way to pause a JVM.

>I'd like to use for doing a full thread dump of my
>java application.
>
>If not, is there a way to call a full thread dump when
>the application runs as NT service? 
>Have i to open c code, adding support and recompile
>the wrapper code?
>  
>
There are a couple ways to invoke a thread dump in your application.   
If your
app uses JMX, the Wrapper provides an interface that can be used to 
invoke the
dump.

You can invoke a thread dump from the console by pressing CTRL-BREAK.  But
that is not useful when run as a service unless you have configured the 
wrapper to
show its console.

The Wrapper comes with a simple little class which lets you connect via 
telnet and
do things link thread dumps or JVM restarts.   See the javadocs for the
WrapperActionServer for more details.   It requires some Java code be 
added to your
application, but it is quite easy to do.
http://wrapper.tanukisoftware.org/doc/english/javadocs.html

Another method is to call WrapperManager.requestThreadDump directly from 
within
your application.  This method opens up a lot of options for you.

On UNIX platforms, it is easy.  You simply launch the shell script with 
the "dump"
command.

Cheers,
Leif



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