I have configured an app pool in IIS 7.5 to recycle when the memory usage goes above a certain level. I have also configured it to log this information.
Where in the event log should I look for this?
I have tried filtering based on the source being all the IIS items, e.g. 'IIS-W3SVC-WP', 'IIS-IISManager', and all the rest, but nothing.
I can see that it is adding in the items from the 'IIS-Configuration' log too which I enabled. But still nothing.
The answer is
As link-only answers are not preferred, I will just copy and paste the content of the link of the accepted answer
It is definitely System Log.
Which Log file? Well -- you can check the physical path by right-clicking on the System Log (e.g. Server Manager | Diagnostics | Event Viewer | Windows Logs). The default physical path is %SystemRoot%\System32\Winevt\Logs\System.evtx.
You can create a Custom Filter and filter by "Source: WAS" to quickly see only entries generated by IIS.
You may need first to enable logging of such even for a specific App Pool -- by default App Pool has only 3 recycle events out of 8 enabled. To change it using GUI: II S Manager | Application Pools | Select App Pool -> Advanced Settings | Generate Recycle Event Log Entry.
IIS version 8.5 +
To enable Event Tracing for Windows for your website/application
- Go to Logging and ensure either ETW event only or Both log file and ETW event ...is selected.
- Enable the desired Recycle logs in the Advanced Settings for the Application Pool:
- Go to the default Custom View: WebServer filters IIS logs:
Custom Views > ServerRoles > Web Server
- ... or System logs:
Windows Logs > System
As it seems impossible to filter the XPath message data (it isn't in the XML to filter), you can also use powershell to search:
Get-WinEvent -LogName System | Where-Object {$_.Message -like "*recycle*"}
From this, I can see that the event Id for recycling seems to be 5074, so you can filter on this as well. I hope this helps someone as this information seemed to take a lot longer than expected to work out.
This along with @BlackHawkDesign comment should help you find what you need.
I had the same issue. Maybe interesting to mention is that you have to configure in which cases the app pool recycle event is logged. By default it's in a couple of cases, not all of them. You can do that in IIS > app pools > select the app pool > advanced settings > expand generate recycle event log entry – BlackHawkDesign Jan 14 '15 at 10:00
Source: Stackoverflow.com