[Javaserver-perl] Re: JavaServer dies when under heavy load

[<ma...@zz...>]

Hey Shao,
    I would recommend running JavaServer under a profiler or
debugger to see better what's going on.  Does the JVM crash?  Does
JavaServer hang?  Is there a stack trace?
    Of course you can create a simple shell watchdog script to restart
JavaServer if it goes away but better to find out the root cause - I
cannot think of a reason why JavaServer would crash under heavy load
from 24 users unless there's a memory leak or you run out of system
resources somewhere.  Of course there could be a JVM bug or any number
of things that causes this.
    & please write to the list 'jav...@li...'
so everyone can benefit from this discussion - join @
http://sourceforge.net/projects/javaserver/
    thanks!
	Mark

On Tue, Jul 13, 2004 at 11:14:58AM +0800, Shao Ming wrote:
> Hi Mark,
>  
> first of all, thanks again for the fine piece of work.
>  
> During our Performance testing, we discover that JavaServer will die under
> heavy load (when we simulate abt 24 virtual users).
>  
> Do you know of any particluar reason why JavaServer cannot handle the load?
> Or alternatively, do you know of any 3rd party app that can monitor running
> instance of JavaServer and restart the daemon when its down?
>  
> this is just the last hurdle I need to rectify before rolling out the app
> for production.
>  
> thanks for your attention.
>  
> regards,
> /shaoming