Re: [clif] instability while running benchmarks

[olivier gusching <olivier.gusching@xxxxxxxx>]

Hi Bruno,

For the GUI freeze, i can't really give details, as I got no error 
message. This bug occurs during a benchmark, and seem to occur more 
often when the load (the number of clients) becomes high. Everything 
freezes, the console becomes a blank frame and no more request is sent 
to the application server.

Concerning the HttpClient library, i'll try to look at it by myself for 
the moment. I'll give you feedback if I find the error.

Thanks for your answer,

Olivier

Bruno Dillenseger wrote:

> Hello,
>
> For the first issue (freeze), it never happened to me, except with the 
> new version I'm currently preparing... Since the GUI freezes, it means 
> that the thread that manages the GUI events is blocked somewhere. I 
> have to check synchronized blocks and wait() calls in the GUI code. 
> However, it would be of great support for my bug tracking if you could 
> give details about when the freeze occur. You could open a bug in the 
> bug-tracking system available at 
> http://forge.objectweb.org/tracker/?atid=100057&group_id=57&func=browse 
> <http://forge.objectweb.org/tracker/?atid=100057&group_id=57&func=browse>
>
> For the second issue, a NullPointerException is raised by HttpClient 
> code, so you'd better check there (are you correctly using this 
> library, could there be a concurrency issue, is there a bug in this 
> library - try to update it from Apache project site)
>
> Best regards,
> -- Bruno.
>
> olivier gusching wrote:
>
> > I got a few problems running clif :
> >
> > -sometimes, the console hangs (just got an empty JFrame) and my 
> > benchmark freezes with no errors. I got no explanation for that. Any 
> > idea ?
> > -sometimes, the server starts raising exceptions at each http 
> > request, and the benchmark fails. I use a scenario class (Xscenar2 
> > here) similar to the Webtest example. But I think the error is 
> > neither the fault of my test class, nor that of JBoss which seems to 
> > be fine.
> >
> >  [java] ATTENTION: Recoverable exception caught but 
> > MethodRetryHandler.retryMethod() returned false, rethrowing exception
> >     [java] java.lang.NullPointerException
> >     [java]     at 
> > org.apache.commons.httpclient.HttpMethodBase.getStatusCode(HttpMethodBase.java:616) 
> >
> >     [java]     at Xscenar2$Session.action(Xscenar2.java:658)
> >     [java]     at 
> > org.objectweb.clif.scenario.util.multithread.MTScenario$Activity.action(MTScenario.java:515) 
> >
> >     [java]     at 
> > org.objectweb.clif.scenario.util.multithread.MTScenario$Activity.run(MTScenario.java:473) 
>
>
>
>
>
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