Irregular unhandled exceptions in Dragnet

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Moderator: SourceGear


Posts: 28
Joined: Thu Aug 10, 2006 2:40 am
Location: Mönchengladbach, Germany
PostPosted: Thu Aug 10, 2006 3:39 am
Hello!

We're evaluating Vault and Dragnet currently and have installed both on one server, using a domain-account (the same for both) since SQL-Server is running on a different server. So far, everything seems to work fine (apart from the shadow folders of vault, but that is a different topic). However, studying the log of the server reveals that the dragnet app has unhandled exceptions at irregular intervals. The exception is always the same:

Code: Select all
Ereigniscode: 3005
Ereignismeldung: An unhandled exception has occurred.
Ereigniszeit: 10.08.2006 03:28:38
Ereigniszeit (UTC): 10.08.2006 01:28:38
Ereignis-ID: dbb680b6b44743e5abc00a85bd85cb1e
Ereignissequenz: 77
Vorkommen: 34
Ereignisdetailcode: 0
 
Anwendungsinformationen:
    Anwendungsdomäne: /LM/W3SVC/1/Root/Dragnet-1-127995112645937976
    Vertrauensebene: Full
    Virtueller Anwendungspfad: /Dragnet
    Anwendungspfad: C:\Inetpub\wwwroot\Dragnet\
    Computername: <computername>
 
Prozessinformationen:
    Prozess-ID: 1704
    Prozessname: aspnet_wp.exe
    Kontoname: <computername>\ASPNET
 
Ausnahmeinformationen:
    Ausnahmetyp: NullReferenceException
    Ausnahmemeldung: Object reference not set to an instance of an object.
 
Anforderungsinformationen:
    Anforderungs-URL: 
    Anforderungspfad: 
    Benutzerhostadresse: 
    Benutzer: 
    Ist authentifiziert: False
    Authentifizierungstyp: 
    Threadkontoname: <domain>\sgVault
 
Threadinformationen:
    Thread-ID: 8
    Threadkontoname: <domain>\sgVault
    Identitätswechsel für: False
    Stapelüberwachung:    at System.Web.Security.FormsAuthentication.SignOut()
   at MantisServiceLib.Helpers.DeleteSession(HttpSessionState hss)
   at Mantis.Global.Session_End(Object sender, EventArgs e)
 
 
Details des benutzerdefinierten Ereignisses:

Weitere Informationen über die Hilfe- und Supportdienste erhalten Sie unter http://go.microsoft.com/fwlink/events.asp.


Any idea as to what causes this exception? Could this compromise the dragnet database?

Posts: 3558
Joined: Tue Dec 16, 2003 1:17 pm
Location: SourceGear
PostPosted: Thu Aug 10, 2006 7:36 am
When a session times out, Dragnet tries to clean up any database session info. With the 2.0 .Net Framework, Microsoft changed the threading model, which causes this problem in the event viewer.

When using the 1.1 .Net Framework, the cleanup works correctly.


This isn't affecting the database because the thread cannot connect to the database. But you may want to keep an eye on the Dragnet sessions table to make sure it does not grow beyond control.
Jeff Clausius
SourceGear

Posts: 28
Joined: Thu Aug 10, 2006 2:40 am
Location: Mönchengladbach, Germany
PostPosted: Thu Aug 10, 2006 8:54 am
Thanks! This sure explains this behaviour. We had enough trouble ourselves with this total change in threading design. Could this also be the explanation of the other issue I posted?

Posts: 3558
Joined: Tue Dec 16, 2003 1:17 pm
Location: SourceGear
PostPosted: Thu Aug 10, 2006 9:14 am
No. I don't believe so.

There are some other questions on that thread.
Jeff Clausius
SourceGear

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