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HomeHomeUsing DNN Platf...Using DNN Platf...Administration ...Administration ...Site is currently UnavailableSite is currently Unavailable
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2/16/2012 10:29 PM
 
Brett


Joined: 2/21/2011
Posts: 42

I am running DNN 6 on Windows server 2003 / SQL Express / 2 gigs of ram. I keep getting get the error message: Site is currently Unavailable. This seems to happen randomly. I can't figure out what is causing this. Also the site loads very slowly. Is this because there is not enough RAM on the machine? I have run other CMS packages on this same machine with no issues.

 

 
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2/18/2012 3:45 AM
 
Antony Slater


www.webpc.net
Joined: 9/21/2004
Posts: 499
DNN sites can run on a machine with 2gb of ram. As to whether it is sufficient in your case depends on a lot of things like traffic, size of site, DNN settings etc.

Are there a lot of messages in the event log about the restarting of the application? Look at your app pool recycle settings in IIS. You might need to make some adjustments here after working it why the pool recycles.

Also check the event log on the server to see if there are any events logged regarding the SQL server. The public site unavailable message can be caused by SQL communication issues.

If the site has been operating for a long time or has a lot of events recorded in the DNN event log you might want to look at emptying the event log or better exporting the contents so you can still refer to the events whilst troubleshooting. To export you will need direct access to the SQL server and use SQL management studio.

The above should get you started if figuring out what is occurring.

Antony
 
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2/18/2012 9:42 AM
 
Brett


Joined: 2/21/2011
Posts: 42
Thanks for the suggestions. The site is fairly small with low traffic.

This error is happening on a daily basis. I went in to the web.config and updated the connection string. The line below was commented out. The site loads after doing this.

<add name="SiteSqlServer" connectionString="Data Source=.\SQLExpress;Integrated Security=True;User Instance=True" providerName="System.Data.SqlClient" />
   

What should i change is the IIS app pool recycle settings?

The Event Viewer had showed the following warning:

Event Type: Warning
Event Source: ASP.NET 2.0.50727.0
Event Category: Web Event
Event ID: 1309
Date: 2/18/2012
Time: 8:20:38 AM
User: N/A
Computer: SERVER1
Description:
Event code: 3005
Event message: An unhandled exception has occurred.
Event time: 2/18/2012 8:20:38 AM
Event time (UTC): 2/18/2012 2:20:38 PM
Event ID: 7b823958264345979c0c20ea33c55337
Event sequence: 2
Event occurrence: 1
Event detail code: 0

Application information:
Application domain: /LM/W3SVC/1/Root/dotnetnuke-3-129740484236374000
Trust level: Full
Application Virtual Path: /dotnetnuke
Application Path: C:\Inetpub\wwwroot\dotnetnuke\
Machine name: SERVER1

Process information:
Process ID: 1340
Process name: w3wp.exe
Account name: NT AUTHORITY\NETWORK SERVICE

Exception information:
Exception type: ArgumentNullException
Exception message: Value cannot be null.
Parameter name: key

Request information:
Request path: /dotnetnuke/Default.aspx
User:
Is authenticated: False
Authentication Type:
Thread account name: NT AUTHORITY\NETWORK SERVICE

Thread information:
Thread ID: 5
Thread account name: NT AUTHORITY\NETWORK SERVICE
Is impersonating: False
Stack trace: at System.ThrowHelper.ThrowArgumentNullException(ExceptionArgument argument)
at System.Collections.Generic.Dictionary`2.FindEntry(TKey key)
at DotNetNuke.Entities.Portals.PortalSettings.GetPortalSettings(Int32 tabID, PortalInfo portal)
at DotNetNuke.Entities.Portals.PortalSettings..ctor(Int32 tabID, PortalAliasInfo objPortalAliasInfo)
at DotNetNuke.HttpModules.UrlRewriteModule.OnBeginRequest(Object s, EventArgs e)
at System.Web.HttpApplication.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)


Custom event details:

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.
 
New Post
2/18/2012 4:09 PM
 
Allan Duarte

Joined: 4/29/2010
Posts: 4

I'm having the exact same problem. I'll be working in the app just fine then "bam" I get the "site not available". Very frustrating. Site is hosted in another data center. they changed the timeout value in the app pool but it still happens. I think our app runs slow too.

We developed most of the app on a standalone server and never had this issue.  We're not sure what to do next.

 
 
New Post
2/18/2012 4:12 PM
 
Allan Duarte

Joined: 4/29/2010
Posts: 4

Brett

Did commenting that sql line help your problem?

Allan

 

 

 
 
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