It seems to me that over 1,000 pages (Tabs) is a lot.

It seems relevant that you are having trouble saving changes to pages.

I would also guess (from something else that you said) that you have different security on each of these pages. Is that correct?

I have no knowledge in this area, but I seem to recall performance problems related to very large numbers of roles. Or maybe it was a limit to the total number of roles? My memory says something to do with the total number of roles that could be cached in a cookie.

---

Best wishes,
- Richard
Agile Development Consultant, Practitioner, and Trainer
www.dynamisys.co.uk

Hi Richard,

Thank you for sharing your knowledge and for helping to find my issue.
I did not know that having a lot of tabs would be an issue. All these pages are under one parent page. Only the relevant user can access his photo book and only he has the access to that page.
That was the requirement.
So I was creating a separate page for each user and putting their photo book in the page. Gave the access only for that user.
However all registered users are less than 5000 and all of them are under "registered Users" role.

I am just asking. Having 1000 pages and 5000 registered users is an issue in a DNN site? Can't handle DNN this requirement for a small size business site?

Is there any other solutions as you know? I am thinking to have a new solution without creating new tabs for new photo books for new customers.

But it would be difficult to give the new feature to the old photo books. So I have to improve from what I have now.

Thanks!

Thank you for your support Sebastian,

The DB is running on MSSQL 2008. So anything else that can I ask form hosting provider?

Yes. You are correct. This DotNetNuke site has lot of registered users and we feel the site is performing very well so far.

This is the event viewer-

ModuleId: -1

ModuleDefId: -1

FriendlyName:

ModuleControlSource: DesktopModules/Admin/Tabs/ManageTabs.ascx

AssemblyVersion: 7.0.6

PortalID: 0

PortalName: Photos

UserID: 1

UserName: host

ActiveTabID: 1247

ActiveTabName: 3559_t3

RawURL: /EAlbums/3559_t3/tabid/1247/ctl/Tab/action/copy/activeTab/copyTab/Default.aspx

AbsoluteURL: /Default.aspx

AbsoluteURLReferrer: http://www.xxxxxxxxxxxxxxx.com/EAlbums/3559_t3/tabid/1247/ctl/Tab/action/copy/activeTab/copyTab/Default.aspx

UserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/29.0.1547.66 Safari/537.36

DefaultDataProvider: DotNetNuke.Data.SqlDataProvider, DotNetNuke

ExceptionGUID: d0bac45b-1961-4dc0-9de6-3120991276f3

InnerException: Object reference not set to an instance of an object.

FileName:

FileLineNumber: 0

FileColumnNumber: 0

Method: DotNetNuke.Security.Permissions.TabPermissionCollection.AddRange

StackTrace:

Message: DotNetNuke.Services.Exceptions.ModuleLoadException: Object reference not set to an instance of an object. ---> System.NullReferenceException: Object reference not set to an instance of an object. at DotNetNuke.Security.Permissions.TabPermissionCollection.AddRange(TabPermissionCollection tabPermissions) at DotNetNuke.Modules.Admin.Tabs.ManageTabs.SaveTabData(String strAction) at DotNetNuke.Modules.Admin.Tabs.ManageTabs.cmdUpdate_Click(Object Sender, EventArgs e) --- End of inner exception stack trace ---

Source:

Server Name: bluebell