C-Sharp (C#) Group: Session or...?

Thread: C-Sharp (C#) Group: Session or...?

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C-Sharp (C#) Group: Session or...?
	2006-06-08 20:51:24
Hi all, I have an assignment due (asp.net in c#) that requires us to think of a large-scale online stores allowing for thousands of users at a time to be logged in, creating accounts and so on. We have been told to choose either sessions and / or databases to hold necessary information but I'm a bit stuck (and very interested) in how it would really work! Can anyone point me in the right direction here? A web reference, a good example online or something please? I don't think this course is very indepth, so forgive me for the silly questions...I just don't see how using a session on one or even a few servers would be the best thing to do, nor would calling and somehow storing somewhere else (in the session too???) all the user's account information when we're talking about thousands of users at a time - wouldn't this clog up the memory, speed or whatever else of the web server(s)? How is it really done (in asp.net and c# of course!)? Many thanks in advance for any guidance Lara --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "C-Sharp (C#)" group. To post to this group, send email to C_Sharpgooglegroups.com To unsubscribe from this group, send email to C_Sharp-unsubscribegooglegroups.com For more options, visit this group at http://groups. google.com/group/C_Sharp -~----------~----~----~----~------~----~------~--~---

C-Sharp (C#) Group: Re: Session or...?
	2006-06-16 07:54:58
http://msdn2.microsoft.com/en-US/library/ms178586.aspx http: //www.developer.com/db/article.php/3595766 simply the point is to store session parameters on a separate web server when you use a web farm. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "C-Sharp (C#)" group. To post to this group, send email to C_Sharpgooglegroups.com To unsubscribe from this group, send email to C_Sharp-unsubscribegooglegroups.com For more options, visit this group at http://groups. google.com/group/C_Sharp -~----------~----~----~----~------~----~------~--~---

C-Sharp (C#) Group: Re: Session or...?
	2006-06-16 07:52:54
Goog79 wrote: > Hi all, > > I have an assignment due (asp.net in c#) that requires us to think of a > large-scale online stores allowing for thousands of users at a time to > be logged in, creating accounts and so on. We have been told to choose > either sessions and / or databases to hold necessary information but > I'm a bit stuck (and very interested) in how it would really work! Can > anyone point me in the right direction here? A web reference, a good > example online or something please? I don't think this course is very > indepth, so forgive me for the silly questions...I just don't see how > using a session on one or even a few servers would be the best thing to > do, nor would calling and somehow storing somewhere else (in the > session too???) all the user's account information when we're talking > about thousands of users at a time - wouldn't this clog up the memory, > speed or whatever else of the web server(s)? How is it really done (in > asp.net and c# of course!)? > > Many thanks in advance for any guidance > Lara --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "C-Sharp (C#)" group. To post to this group, send email to C_Sharpgooglegroups.com To unsubscribe from this group, send email to C_Sharp-unsubscribegooglegroups.com For more options, visit this group at http://groups. google.com/group/C_Sharp -~----------~----~----~----~------~----~------~--~---

C-Sharp (C#) Group: Re: Session or...?
	2006-06-16 08:17:04

A large scale implementation should avoid sessions as much as possible as they nearly always cause scalability issues (even when you use Sql sessions). A much better and farm safe method is to use a database driven caching model where you assign caching priorities to items (frameworks already exist for this, check out http://msdn.microsoft.com/library/?url=/library/en-us/dnpag2/html/EntLib2.asp). If you think through the data you need to hold about a user / products it is fairly easy to come up with a list of priorities for the data items. For instance: Firstname / Lastname etc - Can be cached  for the entirety of a users session but needs to expire when the session ends or the user changes their details (alternatively should only be cached as long as the session and user needs to end their session for the cache update to take place). Used frequently so has a high priority. Product price - Should always be retrieved from the datasource and should never be cached. Obviously for each dataitem you need to decide how stale the data can be and the data priority (low priority items will be the first removed from the cache). On a class level you would want to implement this transparently so your Data Access Layer would be the only layer that knows or cares if an items is cached, both your Business and Presentation Layer would simply request items from your data layer which would either retrieve them from cache or the database. Liam On 6/16/06, zoki <gmail.com">gorgievski.zorangmail.com> wrote: http://msdn2.microsoft.com/en-US/library/ms178586.aspx http://www.developer.com/db/article.php/3595766 simply the point is to store session parameters on a separate web server when you use a web farm. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "C-Sharp (C#)" group. To post to this group, send email to C_Sharpgooglegroups.com To unsubscribe from this group, send email to C_Sharp-unsubscribegooglegroups.com For more options, visit this group at http://groups.google.com/group/C_Sharp -~----------~----~----~----~------~----~------~--~---
C-Sharp (C#) Group: Re: Session or...?
	2006-06-21 19:57:44
Thanks so much Liam and Zoki! I'm gonna investigate your links and tips further. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "C-Sharp (C#)" group. To post to this group, send email to C_Sharpgooglegroups.com To unsubscribe from this group, send email to C_Sharp-unsubscribegooglegroups.com For more options, visit this group at http://groups. google.com/group/C_Sharp -~----------~----~----~----~------~----~------~--~---

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