How to Find App Pool Recycles in Event Log

Question

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

User · Answer

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

User · Answer

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

User · Answer

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

User · Answer

It seemed quite hard to find this information  but eventually  I came across this question  You have to look at the  System  event log  and filter by the WAS source   Here is more info about the WAS  Windows Process Activation Service

[iis] How to Find App Pool Recycles in Event Log

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