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IIS Worker Process NullReferenceException at SessionState.SessionStateItemCollection.get_Item(Int32)
What is a NullReferenceException, and how do I fix it?WCF ASynchronous calls within a Windows forms Application using a timerWindows Server 2012 System.IndexOutOfRangeExceptionBuilding a Windows Service with .NET 4.5Cannot open any CSHTML file in a certain projectRoleEnvironmentException When Deploying Worker Role To AzureReading an XML file results in Termination due to an unhandled exceptionWPF: Investigate WPF app crash by unhandled exceptionsError in Rx runtimewpf application runs in debug mode but doesn't run without debugging
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A Kentico-9 site for a client of mine has been crashing at seemingly random times.
I've checked the windows server error logs, and found the stack trace of the error.
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
at System.Web.SessionState.SessionStateItemCollection.get_Item(Int32)
at System.Web.SessionState.HttpSessionStateContainer.get_Item(Int32)
at System.Web.Util.AspCompatApplicationStep.AnyStaObjectsInSessionState(System.Web.SessionState.HttpSessionState)
at System.Web.HttpApplicationFactory.FireSessionOnEnd(System.Web.SessionState.HttpSessionState, System.Object, System.EventArgs)
at System.Web.SessionState.SessionOnEndTargetWorkItem.RaiseOnEndCallback()
at System.Web.Util.WorkItem.CallCallbackWithAssert(System.Web.Util.WorkItemCallback)
at System.Web.Util.WorkItem.OnQueueUserWorkItemCompletion(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
From there i've setup dumping the application pool process on the exception, hoping that it would lead to some more information about it, but that doesn't seem to contain anything new.
Any help would be appreciated.
c# asp.net iis kentico
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
add a comment |
A Kentico-9 site for a client of mine has been crashing at seemingly random times.
I've checked the windows server error logs, and found the stack trace of the error.
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
at System.Web.SessionState.SessionStateItemCollection.get_Item(Int32)
at System.Web.SessionState.HttpSessionStateContainer.get_Item(Int32)
at System.Web.Util.AspCompatApplicationStep.AnyStaObjectsInSessionState(System.Web.SessionState.HttpSessionState)
at System.Web.HttpApplicationFactory.FireSessionOnEnd(System.Web.SessionState.HttpSessionState, System.Object, System.EventArgs)
at System.Web.SessionState.SessionOnEndTargetWorkItem.RaiseOnEndCallback()
at System.Web.Util.WorkItem.CallCallbackWithAssert(System.Web.Util.WorkItemCallback)
at System.Web.Util.WorkItem.OnQueueUserWorkItemCompletion(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
From there i've setup dumping the application pool process on the exception, hoping that it would lead to some more information about it, but that doesn't seem to contain anything new.
Any help would be appreciated.
c# asp.net iis kentico
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
Right now I can only comment on this as there is no clear answer. It seems, that running thread has terminated and it tries to terminate the session, but session is no longer available. Dump would be a good check as you can at least see threads (unless one that was terminated is not there). Also some sort of information regarding what was happening within the application would be good. Lastly, how is the site configured regarding incoming traffic, load balancing and session storage?
– Michal Samuhel
Mar 27 at 7:18
The site gets approximately 7k unique user hits a day. No load balancing at present, session storage is set to InProc. In the dump, the thread, call stack and the memory address it's trying to access are there, but it seems like it's only the worker process and not any application code.
– Bryce J
Mar 28 at 22:30
add a comment |
A Kentico-9 site for a client of mine has been crashing at seemingly random times.
I've checked the windows server error logs, and found the stack trace of the error.
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
at System.Web.SessionState.SessionStateItemCollection.get_Item(Int32)
at System.Web.SessionState.HttpSessionStateContainer.get_Item(Int32)
at System.Web.Util.AspCompatApplicationStep.AnyStaObjectsInSessionState(System.Web.SessionState.HttpSessionState)
at System.Web.HttpApplicationFactory.FireSessionOnEnd(System.Web.SessionState.HttpSessionState, System.Object, System.EventArgs)
at System.Web.SessionState.SessionOnEndTargetWorkItem.RaiseOnEndCallback()
at System.Web.Util.WorkItem.CallCallbackWithAssert(System.Web.Util.WorkItemCallback)
at System.Web.Util.WorkItem.OnQueueUserWorkItemCompletion(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
From there i've setup dumping the application pool process on the exception, hoping that it would lead to some more information about it, but that doesn't seem to contain anything new.
Any help would be appreciated.
c# asp.net iis kentico
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
A Kentico-9 site for a client of mine has been crashing at seemingly random times.
I've checked the windows server error logs, and found the stack trace of the error.
Application: w3wp.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.NullReferenceException
at System.Web.SessionState.SessionStateItemCollection.get_Item(Int32)
at System.Web.SessionState.HttpSessionStateContainer.get_Item(Int32)
at System.Web.Util.AspCompatApplicationStep.AnyStaObjectsInSessionState(System.Web.SessionState.HttpSessionState)
at System.Web.HttpApplicationFactory.FireSessionOnEnd(System.Web.SessionState.HttpSessionState, System.Object, System.EventArgs)
at System.Web.SessionState.SessionOnEndTargetWorkItem.RaiseOnEndCallback()
at System.Web.Util.WorkItem.CallCallbackWithAssert(System.Web.Util.WorkItemCallback)
at System.Web.Util.WorkItem.OnQueueUserWorkItemCompletion(System.Object)
at System.Threading.QueueUserWorkItemCallback.WaitCallback_Context(System.Object)
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()
at System.Threading._ThreadPoolWaitCallback.PerformWaitCallback()
From there i've setup dumping the application pool process on the exception, hoping that it would lead to some more information about it, but that doesn't seem to contain anything new.
Any help would be appreciated.
c# asp.net iis kentico
c# asp.net iis kentico
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
asked Mar 27 at 1:23
Bryce JBryce J
11 silver badge1 bronze badge
11 silver badge1 bronze badge
Right now I can only comment on this as there is no clear answer. It seems, that running thread has terminated and it tries to terminate the session, but session is no longer available. Dump would be a good check as you can at least see threads (unless one that was terminated is not there). Also some sort of information regarding what was happening within the application would be good. Lastly, how is the site configured regarding incoming traffic, load balancing and session storage?
– Michal Samuhel
Mar 27 at 7:18
The site gets approximately 7k unique user hits a day. No load balancing at present, session storage is set to InProc. In the dump, the thread, call stack and the memory address it's trying to access are there, but it seems like it's only the worker process and not any application code.
– Bryce J
Mar 28 at 22:30
add a comment |
Right now I can only comment on this as there is no clear answer. It seems, that running thread has terminated and it tries to terminate the session, but session is no longer available. Dump would be a good check as you can at least see threads (unless one that was terminated is not there). Also some sort of information regarding what was happening within the application would be good. Lastly, how is the site configured regarding incoming traffic, load balancing and session storage?
– Michal Samuhel
Mar 27 at 7:18
The site gets approximately 7k unique user hits a day. No load balancing at present, session storage is set to InProc. In the dump, the thread, call stack and the memory address it's trying to access are there, but it seems like it's only the worker process and not any application code.
– Bryce J
Mar 28 at 22:30
Right now I can only comment on this as there is no clear answer. It seems, that running thread has terminated and it tries to terminate the session, but session is no longer available. Dump would be a good check as you can at least see threads (unless one that was terminated is not there). Also some sort of information regarding what was happening within the application would be good. Lastly, how is the site configured regarding incoming traffic, load balancing and session storage?
– Michal Samuhel
Mar 27 at 7:18
Right now I can only comment on this as there is no clear answer. It seems, that running thread has terminated and it tries to terminate the session, but session is no longer available. Dump would be a good check as you can at least see threads (unless one that was terminated is not there). Also some sort of information regarding what was happening within the application would be good. Lastly, how is the site configured regarding incoming traffic, load balancing and session storage?
– Michal Samuhel
Mar 27 at 7:18
The site gets approximately 7k unique user hits a day. No load balancing at present, session storage is set to InProc. In the dump, the thread, call stack and the memory address it's trying to access are there, but it seems like it's only the worker process and not any application code.
– Bryce J
Mar 28 at 22:30
The site gets approximately 7k unique user hits a day. No load balancing at present, session storage is set to InProc. In the dump, the thread, call stack and the memory address it's trying to access are there, but it seems like it's only the worker process and not any application code.
– Bryce J
Mar 28 at 22:30
add a comment |
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Right now I can only comment on this as there is no clear answer. It seems, that running thread has terminated and it tries to terminate the session, but session is no longer available. Dump would be a good check as you can at least see threads (unless one that was terminated is not there). Also some sort of information regarding what was happening within the application would be good. Lastly, how is the site configured regarding incoming traffic, load balancing and session storage?
– Michal Samuhel
Mar 27 at 7:18
The site gets approximately 7k unique user hits a day. No load balancing at present, session storage is set to InProc. In the dump, the thread, call stack and the memory address it's trying to access are there, but it seems like it's only the worker process and not any application code.
– Bryce J
Mar 28 at 22:30