OK, thanks very much Chris and Hunter. I'm running SUNs JDK 1.3.

So if each java process I see is a thread within the same VM, does anyone 
know what causes a new thread to be started?

Also, is there any way to know which of these are Hypersonic, which are 
Tomcat and which are jBoss?

Jim

--On Thursday, May 10, 2001 6:07 PM +0100 "Kimpton,C (Chris)" 
<[EMAIL PROTECTED]> wrote:

> Hi,
>
>> -----Original Message-----
>> From: Jim Archer [mailto:[EMAIL PROTECTED]]
>>
>> My question is, are each of these a seperate VM or different
>> processes
>> running within the same VM?
>
> See http://www.jguru.com/faq/view.jsp?EID=125066
>
>
>>
>> Also, what causes the number of java processes to change?
>> Does jBoss make
>> more instances of itself as the load increases, or is it a
>> matter of Tomcat
>> needing a bean and making a jBoss instance to service a transaction?
>>
>
> So - the processes are really just threads.  It would then depend on who
> creates a thread - I am sure tomcat creates threads as part of its load
> balancing and similarly jboss does too.
>
> HTH,
> Chris
>
>
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********************************************
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Somewhere ages and ages hence:
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I took the one less traveled by,
And that has made all the difference.

- Robert Frost, 1916


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