[AJAX ASP.NET]Performance

[Oriane]

Hi,

I ask myself: if an AJAX aspx page doesn't need anything on the IIS server
and only uses Web services from inside the Javascript to fetch data, is it
necessary to keep a connection/session with IIS ? I guess not !

In that case, how can we "delete" the session with that client in IIS ? I
don't know much in that domain, but I guess that keeping HTTP connections
alive with clients must be resource consuming. So AJAX could save the server
resources.

Oriane

[David Wang]

On Jan 16, 1:50*am, "Oriane" <[e-mail]:

Hi,

I ask myself: if an AJAX aspx page doesn't need anything on the IIS server
and only uses Web services from inside the Javascript to fetch data, is it
necessary to keep a connection/session with IIS ? I guess not !

In that case, how can we "delete" the session with that client in IIS ? I
don't know much in that domain, but I guess that keeping HTTP connections
alive with clients must be resource consuming. So AJAX could save the server
resources.

Oriane

Please be more precise. Can you clarify the "connection/session with
IIS" that you are talking about?

IIS and HTTP has no concept of sessions, so if you are asking about
how to "delete" a session, you should ask that in a forum dedicated to
the particular implementation of AJAX on ASP.Net.

Web Services are just SOAP calls made over HTTP to a web server. You
say that AJAX needs to fetch data from it, so contrary to your first
sentence, it would seem that AJAX aspx page *does* need stuff on the
IIS. Please clarify what you are asking to yourself.

Can you identify or measure the "connection/session with IIS" that is
unnecessarily kept open and should be "deleted".

FYI: HTTP is stateless. Keeping a connection alive is called "HTTP
KeepAlive" and is mutually negotiated between a client and server.
Thus, just because a server and client are conducting request/response
over HTTP, it does not mean that there are connections being kept open
unnecessarily.
//David
http://w3-4u.blogspot.com
http://blogs.msdn.com/David.Wang
//

[PhilTheGap]

Hi Peter,
"Peter Bromberg [C# MVP]" <pb*******@yahoo.NoSpamMaam.coma écrit dans le
message de news:00**********************************@microsof t.com...

>I think you may be harborin some misconceptions here. Using AJAX with an
ASP.NET application still requires all the IIS infrastructure. I think you
are overly concerned with resource usage. IIS is already very efficient.
Just
focus on getting your application to work well.

Yes I think you are right. However, as Dino Esposito states in his article
from MSDN Magazine (Cutting Edge: AJAX Application Architecture, Part 1),
"The ability to take AJAX applications offline is a challenge for many
software vendors"...