[mapguide-users] Sessions on server side

[Kenneth Skovhede]

Ok, I can see that I misjudged your experience level completely :).

In my experience, users do not understand that sessions expire, they 
just think the page is broken, and reload to fix it.

If you want to avoid using asp.net sessions, your problem would be to 
keep track of concurrent users.
The session ids are generated randomly by MapGuide, so you would need to 
store them somewhere to
test if they are expired later. You cannot re-use an id once it has expired.

Perhaps you can get the same end effect, if you install 2 MapGuide 
servers (and 2 WebExtensions).
Use one for authenticated users, and one for anonymous users.

In the serverconfig.ini, you can set the 
ClientConnections.MaxConnections value to limit the allowed load
for the anonymous installation. It is not the same as concurrent users, 
but will limit the amount of server
power that the anonymous users can get.



In my setups there are no problems serving 10 simultaneous users on a 
quad core.
I strongly recommend that you use tiles (baselayers) as that is 
basically a render
cache, and significantly reduces load on MapGuide. The bandwidth is 
close to the
same, but the tiles can also be cached locally.

I'm pretty sure the MgException (and all other classes) are not 
implementing [Serializable].
I did not know about the cross-domain exception problems, thank you for 
pointing me to it.
There has been no one willing to put time into maintaining the .Net API 
beyond what SWiG
generates. Adding extra code in the generated classes would also mean 
more work for each release,
and again, no one has been willing to provide this extra effort.

No, I cannot see the attachment.

Regards, Kenneth Skovhede, GEOGRAF A/S



Pietro Ianniello skrev:
> My point is not to use session, so I don't want to use ASP.NET 
> <http://asp.net/> sessions.
>
> If I want to track sessions, your idea can be good, I would probably 
> implement something similiar fo non Anonymous users... But in this 
> case insead of pinging to keep session alive, I would just tell users 
> to save data because of session expiration. It's WEB. Sessions Expire. 
> Users must know it... well, this just my opinion! ...and pinging can 
> lead to various security risks.
>
> The problem is with anonymous users, that is for Web Site with maps 
> served transparently to users by MapGuide.
>
>
>              "On an infinitely fast machine, MapGuide can serve an 
> infinite number of users."
> ..ok! I knew it! I must test!!! This was just to request if someone 
> had made some tests and to share his/her experience....
>
>
>    "You cannot reference a class directly without referencing the dll 
> (eg MgException).
>     You can use a more generic try/catch to read the description 
> without knowing the type:
>     try
>     {
>        //Bad code here
>     }
>     catch (Execption ex)
>     {
>        //Also catches MgExceptions and the like
>        Console.Writeline(ex.Message);
>     }"
>
> What do you menan? I reference "MapGuideDotNetApi.dll". My problem is 
> with "cross AppDomain calls". Refer to 
> "http://winterdom.com/2007/01/makeexceptionclassesserializable" for an 
> explanation.
>
>
> "Btw., your attachment did not make it."
> What does it means? You was not able to download my attach?
>
> Anyway, thanks for your answer.
>
> Regards pietro ianniello
>
>
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>
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