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Updating a DLL

Message

From

13/07/2010 11:01:18

Michel Fournier
Level Extreme Inc.
Petit-Rocher, New Brunswick, Canada

13/07/2010 04:12:41

Viv Phillips
Hay-On-Wye, United Kingdom

General information

Forum:

ASP.NET

Category:

Other

Title:

Re: Updating a DLL

Environment versions

Environment:

VB 9.0

OS:

Windows XP SP2

Network:

Windows 2003 Server

Database:

MS SQL Server

Application:

Web

Miscellaneous

Thread ID:

01460478

Message ID:

01472361

Views:

There is something I don't understand in the way the application is unloading. With a single click, I can obtain this pattern:

Id:4399299e-810e-46f7-bdf0-69ec824c2ab4 Application Start at 7/13/2010 11:56:44 AM
Id:00000000-0000-0000-0000-000000000000 Application BeginRequest at 7/13/2010 11:56:44 AM
Id:00000000-0000-0000-0000-000000000000 Application AcquireRequestState at 7/13/2010 11:56:45 AM
Id:00000000-0000-0000-0000-000000000000 Application PreRequestHandlerExecute at 7/13/2010 11:56:45 AM
Id:00000000-0000-0000-0000-000000000000 Application PostRequestHandlerExecute at 7/13/2010 11:56:46 AM
Id:00000000-0000-0000-0000-000000000000 Application ReleaseRequestState at 7/13/2010 11:56:46 AM
Id:00000000-0000-0000-0000-000000000000 Application EndRequest at 7/13/2010 11:56:46 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestHeaders at 7/13/2010 11:56:46 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestContent at 7/13/2010 11:56:46 AM
Id:00000000-0000-0000-0000-000000000000 Application BeginRequest at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application AcquireRequestState at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application PreRequestHandlerExecute at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application PostRequestHandlerExecute at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application ReleaseRequestState at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application EndRequest at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestHeaders at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestContent at 7/13/2010 11:56:52 AM
Id:00000000-0000-0000-0000-000000000000 Application Disposed at 7/13/2010 11:57:03 AM
Id:4399299e-810e-46f7-bdf0-69ec824c2ab4 Application End at 7/13/2010 11:57:03 AM
Id:f4056fd2-17b7-4a00-9863-5d6efe648c76 Application Start at 7/13/2010 11:57:09 AM
Id:00000000-0000-0000-0000-000000000000 Application BeginRequest at 7/13/2010 11:57:09 AM
Id:00000000-0000-0000-0000-000000000000 Application AcquireRequestState at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application PreRequestHandlerExecute at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application PostRequestHandlerExecute at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application ReleaseRequestState at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application EndRequest at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestHeaders at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestContent at 7/13/2010 11:57:14 AM
Id:00000000-0000-0000-0000-000000000000 Application Disposed at 7/13/2010 11:57:33 AM
Id:f4056fd2-17b7-4a00-9863-5d6efe648c76 Application End at 7/13/2010 11:57:33 AM
Id:db5d8579-a2d5-45ba-8822-e453a7ab7f5a Application Start at 7/13/2010 11:57:37 AM
Id:00000000-0000-0000-0000-000000000000 Application BeginRequest at 7/13/2010 11:57:37 AM
Id:00000000-0000-0000-0000-000000000000 Application AcquireRequestState at 7/13/2010 11:57:39 AM
Id:00000000-0000-0000-0000-000000000000 Application PreRequestHandlerExecute at 7/13/2010 11:57:39 AM
Id:00000000-0000-0000-0000-000000000000 Application PostRequestHandlerExecute at 7/13/2010 11:57:39 AM
Id:00000000-0000-0000-0000-000000000000 Application ReleaseRequestState at 7/13/2010 11:57:39 AM
Id:00000000-0000-0000-0000-000000000000 Application EndRequest at 7/13/2010 11:57:39 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestHeaders at 7/13/2010 11:57:39 AM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestContent at 7/13/2010 11:57:39 AM

So, we can see that the application launches the Disposed() event just before the End() event when I have a new application.

But, if I do simulatenous hits, after a new compile, I will get a result like this:

Id:db5d8579-a2d5-45ba-8822-e453a7ab7f5a Application End at 7/13/2010 12:00:45 PM
Id:03d7401c-b87a-4d2d-aa9c-497f1d9164e2 Application Start at 7/13/2010 12:00:49 PM
Id:00000000-0000-0000-0000-000000000000 Application BeginRequest at 7/13/2010 12:00:49 PM
Id:00000000-0000-0000-0000-000000000000 Application EndRequest at 7/13/2010 12:00:49 PM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestHeaders at 7/13/2010 12:00:49 PM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestContent at 7/13/2010 12:00:49 PM
Id:00000000-0000-0000-0000-000000000000 Application AcquireRequestState at 7/13/2010 12:00:52 PM
Id:00000000-0000-0000-0000-000000000000 Application PreRequestHandlerExecute at 7/13/2010 12:00:52 PM
Id:00000000-0000-0000-0000-000000000000 Application PostRequestHandlerExecute at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application ReleaseRequestState at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application EndRequest at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestHeaders at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application PreSendRequestContent at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application Disposed at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application Disposed at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application Disposed at 7/13/2010 12:00:53 PM
Id:00000000-0000-0000-0000-000000000000 Application Disposed at 7/13/2010 12:00:53 PM
Id:03d7401c-b87a-4d2d-aa9c-497f1d9164e2 Application End at 7/13/2010 12:00:53 PM
Id:746160c6-24cc-4f2c-9c70-a3a478ec7396 Application Start at 7/13/2010 12:00:56 PM

In it, we can see that the Disposed() event is being called for each simultaneous hit but that Application_End() only fires once.

Michel Fournier
Level Extreme Inc.
Designer, architect, owner of the Level Extreme Platform
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