Nino,

This is an issue that has cropped up in the past.  In my experiance,
JMeter (and I am not convinced it is JMeter's fault - it could be to do
with Java) hangs when there are a lot of threads.  I have seen this when
I know it is not the web server that is hanging, because I was
load-testing TAG, a web server that has a radically different approach
to the likes of Apache and IIS, and for which I could monitor all the
internals.  I have also seen this on Linux and Window XP.

I think the real issue is that no software works well with very large
numbers of threads.  If you really want to run vast numbers of
concurrent actions, you need a non-blocking approach.  Note, Apache does
not uses non-blocking, but it does thread pooling, which results  in it
actually not handling large numbers of concurrent activities, it just
lets the OS queue them.

The only real way to destruction test a web server is to have multiple
machines hitting it at once, you cannot expect a single machine running
multiple virtual clients to do the job.

Best wishes

AJ

On Thu, 2007-03-01 at 09:42 +0100, Nino Wael wrote:
> This is pretty interesting..!
>  
> We also experience something like that. My best guess rigth now are that it's 
> because the http server arent able to handle all those requests at the same 
> time, and some of them does not get a response, hence the hanging thread.
>  
> What happens in your scenario if you abort the test (ctrl+.) and run it 
> again. Is it the exact same number of threads that are hanging?
>  
> regards Nino
> 
> ________________________________
> 
> Fra: Marlon Santos [mailto:[EMAIL PROTECTED]
> Sendt: to 01-03-2007 02:30
> Til: [email protected]
> Emne: Re: [Newbie] Thread won't die issue
> 
> 
> 
> 
> Hi,
> 
> We are also experiencing the same thing. Actually we are in an environment
> where we need to load test a website but when I was running the test on
> small number of virtual users it works fine. But later on, when we increased
> the number of virtual users at some point in time the threads suddenly
> stopped responding, or may I say the threads hang. We are in a tight
> schedule so the faster this is resolved, the better it will be
> appreciated...
> 
> Regards,
> Marlon
> --
> View this message in context: 
> http://www.nabble.com/Thread-won%27t-die-issue-tf3059035.html#a9241968
> Sent from the JMeter - User mailing list archive at Nabble.com.
> 
> 
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