The ApplicationPoolIdentity under IIS 7+ is a local machine account named the same name as the application pool itself and resides under a special domain called IIS AppPool. For example given the application pool name MyAppPool your application pool identity user would be IIS AppPool\MyAppPool. You can learn more about how this works from this … Read more
As a Hoster, you definitely want to recycle on Memory & Time, potentially Request limits and CPU. You want to be pretty aggressive about these limits, but make sure you publish them to your clients. Memory – 512 for an x86 box, maybe 768. For x64, you can set this much higher depending on the … Read more
Pros: Applications are isolated from each other, unless IIS goes with it, an app pool locking will only take out applications in that pool Ability to run applications under different ASP.NET runtimes, one pool for 1.1 another for 2.0 if needed Ability to have different app pool settings for more or less critical applications. For … Read more
You will need to change the startMode for the application pool your website is running on from onDemand to AlwaysRunning. By default IIS sets all application pools to onDemand. In IIS Manager, click computer name in the Connection pane. Switch to Features View if the view is not active. Double-click Configuration Editor in the Management … Read more
You could use System.Security.Principal.WindowsIdentity.GetCurrent().Name to identify the Identity in which the current application is running. This link provides a nice utility which displays the identity under which the aspx is run.
Websites are intended to keep running (albeit in a stateless nature). There are a myriad of reasons why app pool recycling can be beneficial to the hosting platform to ensure both the website and the server run at optimum. These include (but not limited to) dynamically compiled assemblies remaining in the appdomain, use of session … Read more
You could easily find the latest recycle time by using this powershell snippet: (Get-Process -Id <ProcessId>).StartTime Therefore find the process id of your web application in task manager. First add the following columns via Tools > Select columns… : select PID and Command Line. Look for any w3wp.exe process and find your application by examining … Read more
Go to IIS Manager Click on the name of your server in the Connections pane Under the IIS section in the Features View, double-click the Worker Processes icon Here you can see both the private bytes and virtual bytes usage of each running application pool. More information can be found here: http://technet.microsoft.com/en-us/library/cc771273(v=ws.10).aspx
a) Because of Overlapped Recycling. There is a time period that the “old” process waits for the new one to start. b) No. As far as I know.
IIS7 has some major changes to better support WCF and one of the key pieces is the new integrated application pool. This session from PDC talks about some of these challenges from the perspective of making WCF services perform better: http://channel9.msdn.com/pdc2008/TL38/ This page has a good overview of IIS7 architecture: http://learn.iis.net/page.aspx/101/introduction-to-iis7-architecture/. I’ve included some of … Read more