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Re: Strange ServerXMLHTTP timeout

From: "Roberto T." <r_t@------.------>
To: NULL
Date: 10/5/2007 12:17:00 PM

The server load is really low, processor below 10% most of the time.

I use frames in the main web page, so it could be frequent to have
simultaneous requests from the same client when he arrives to a page with
frames. I also have a "keepSessionAlive.asp" in a hidden frame, reloading
automatically every 15 minutes to avoid session timeout (I don't like it,
but was mandatory).

I have two dictionaries stored in session variables in the main site. They
are created and populated in the session_on_start function.
Maybe this is a bottleneck for the server.

Thank you for your help,
Roberto

"Anthony Jones" <Ant@y...> wrote in message
news:Oh7I2SzBIHA.3916@T......
>
> "Roberto T." <r_t@n...> wrote in message
> news:eZgUEvyBIHA.4836@T......
> > The new server has the same hardware configuration, but less usage.
> > I have disabled session state for some services and abandon session in
> > others that share the site/virtualdir with other tipe of application.
> >
> > In performance monitor, in Active Server Pages Object, in the worst
cases
> I
> > see about 10 requests executing and about 5 queued. Don't know why I
have
> > requests queued if I haven't reached ASPProcessorThreadMax, could it be
> ASP
> > waiting for ServerXMLHTTP reqeuests?.
>
> There only two reasons I know of for ASP to queue a request when there are
> available worker threads.  If a requests arrives for a specific session
> whilst a previous request for a specific session is still in progress it
has
> to be queue until the previous request is complete.  This typically
happens
> when using frames and the browser happens to make simultaneous requests
for
> ASPs from the server.
>
> The other reason is due to COM objects being stored in the session.  In
this
> case a session becomes affiliated with a specific worker thread and will
> only run in that thread.  If that thread is currently processing another
> request when a request for the session arrives it needs to be queued until
> that specific worker thread is available.
>
> Neither of these would seem to causesd by ServerXMLHTTP requests to the
same
> server.
>
> How busy is the server when processing the 10 requests?
>
> -- 
> Anthony Jones - MVP ASP/ASP.NET
>
>




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