[AccessD] Access or SQL Server Express to web

William,

I fact I didn't question/curious about what you have as a back-end - what I
do wanted to talk about did you ever experience what is called "race
condition"? - I mean multi-threading issues when you have some shared data
(cached) in memory and several threads - several sessions of different users
- are trying to use these data? I'm not talking about system Cache - it
synchronizes/serializes parallel access - I mean custom shared (static)
read/write data - did you ever need it?

Also I guess because you're mainly using MS Access you should have some kind
of "virtual locks" to prevent parallel threads/sessions update the same
data? 

Do you use System.Transactions.TransactionScope?

I cannot find also good info on how to properly get expired sessions to fire
event (using Global.asax?) to get this expired session's cached data to be
cleared out and related system Cache data to be cleared also...

Have you seen/used in your project such information?

Thanks.

--
Shamil
 
-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com] On Behalf Of William Hindman
Sent: Friday, December 14, 2007 7:34 AM
To: Access Developers discussion and problem solving
Subject: Re: [AccessD] Access or SQL Server Express to web

...I know this will get your goat but we've had over 150 users in mdb 
sourced pages simultaneously without a hick-up so far ...I'm in the process 
of moving to SQL Server because the load will get much larger in the next 
few months but so far, Drew has been right, Access mdbs can take a lot of 
abuse on the web ...of course I'll freely admit that its read only and I 
cache the hell out of it ...but still :)

...the web based apps all are hosted on shared win2K3 boxes w plenty of ram 
and dedicated app spaces.

...the largest intranet based app never has more than ten users in it and 
the average is probably less than five ...the servers are all Dell PE's w/ 
2GB ram and large Raid5 HDs running SBS2003 Premium R2 ...pretty vanilla but

I like vanilla in servers :)

...like I said, I cater to small business owners and tend to keep it simple 
...something an ignorant lout like me can stay on top of :)

...btw, the MS ajax built into 3.5 works really well compared to that added 
on to 2.0 ...its a very noticeable difference imnsho, especially in the 
gridview ...the MS sponsored open-source 3.5 ajax controls toolkit version 
on the other hand, still has some performance problems with some of the 
controls ...two steps forward, one step back.

William

----- Original Message ----- 
From: "Shamil Salakhetdinov" <shamil at users.mns.ru>
To: "'Access Developers discussion and problem solving'" 
<accessd at databaseadvisors.com>
Sent: Thursday, December 13, 2007 4:12 PM
Subject: Re: [AccessD] Access or SQL Server Express to web


> <<<
> ...10Gb on a system drive on a system using asp.net and sql server?
>>>>
> Well, I have almost all programs, except Windows installed on D: and that
> one is 50Gigs...
>
> ...and all projects are on E; and that one is 30Gigs, there are several
> others...
>
> ...I know now I was wrong when I thought that 10GB would be enough for
> Windows for a long time (and I have many files already compacted on C: 
> most
> the windows updates' backups deleted...
>
> <<<
> I'm not building anything nearly as large or complicated
> as you ...and never intend to :)
>>>>
> Lucky man :)
>
> What is the usual quantity of simultaneous users for your ASP.NET
> applications?
>
> What is the usual IIS/ASP.NET server PC of your customers?
>
> <<<
> ...vs'8 and 3.5 are really, really sweet ...ms has paid a lot of attention
> to developer feedback of late and its showing up now, imnsho.
>>>>
> Good news! I will try to switch to them ASAP in the beginning of the next
> year I hope...
>
>
> --
> Shamil
>