RE: When Did App Pool or Web Application Start?
- From: stcheng@xxxxxxxxxxxxxxxxxxxx (Steven Cheng[MSFT])
- Date: Wed, 14 Feb 2007 02:33:48 GMT
Hello Lucius,
Yes, as you said, in IIS5 and IIS6, ASP.NET application(or other IIS hosted
server-side application) will have different process model. On IIS5, it
doesn't use application pool model, and use the "Protection Level" to
determine the worker process isolation model. While in IIS6, it use
application pool model, thus, any applications share the same application
pool will be hosted in the same worker process.
For your scenario, if what you want to get is the startup point of the
ASP.NET application, you can consider using the ASP.NET application(Global
object)'s Start event to capture the startup time(this event is fired only
once during an ASP.NET application's lifecycle).
#INFO: Application Instances, Application Events, and Application State in
ASP.NET
http://support.microsoft.com/kb/312607/en-us
e.g.
========================
namespace WebApplication1
{
public class Global : System.Web.HttpApplication
{
protected void Application_Start(object sender, EventArgs e)
{
//log the time here...
}
..................
========================
Also, if you need to retrieve this info out-side. You can consider writing
it into a log file or create a custom performance counter so that external
applications can also access this values.
Here is a MSDN reference and web articles which detailedly describe other
server-side events associated with ASP.NET runtime lifecycle:
#ASP.NET Application Life Cycle Overview
http://msdn2.microsoft.com/en-us/library/ms178473.aspx
http://www.eggheadcafe.com/tutorials/aspnet/7ea62799-d1cb-42ee-a1f2-e68b28db
e836/restart-aspnet-apps-prog.aspx
http://weblogs.asp.net/scottgu/archive/2005/12/14/433194.aspx
Hope helps.
Sincerely,
Steven Cheng
Microsoft MSDN Online Support Lead
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