Super user for SharePoint Web Application

I found the following warning message in EventViewer :

“Object Cache: The super user account utilized by the cache is not configured. This can increase the number of cache misses, which causes the page requests to consume unneccesary system resources.”

Resolved it by creating 2 user policies for the web application, 1 for super user and 1 for super reader. These users should not be farm administrators nor Application pool accounts.

Steps:
1. Go to Central Administration
2. Click the Application Management
3. Click the Manage web applications
4. Click the Web application and select User Policy from the Policy ribbon bar
5. Click Add Users
6. Select All Zones and click the Next button
7. Type domain\spSuperUser and give the user Full Control permission
8. Click Finish
9. Repeat Step 4 -8 for domain\spSuperReader

After adding the user policies, run the following PowerShell script:

$webApp = Get-SPWebApplication "http://url/"
$webApp.Properties["portalsuperuseraccount"] = "domain\spsuperuser"
$webApp.Properties["portalsuperreaderaccount"] = "domain\spsuperreader"
$webApp.Update()

Please note if you use Claim based authentication the username format will be different.

Hope that helps

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