I am using DNN 8 and I am constantly getting a "Cache Item Overflow" type of log error. These occur about every 3 hours. When they occur they occure constantly for several minutes. Below is an example;

Log Type: Cache Item Overflow
Explanation: FolderPathPermissions/0/documents/Filename: Overflow-Item not cached


Anyone able to help me resolve this issue.

I believe I have caching setup correctly on the site. In DNN under Servers - Server Settings - Performance I have
Page State Persistance: Page
Caching Provider: WebREquestCachingProvider
Module Cache Provider: Memory
Page Output Cache Provider: memory
Cache Setting: HeavyCaching
Authenticated and Unauthenticated Cachability both set to ServerandNoCache

In IIS I have gone into the site's Output Caching and under edit feature selected both Enable Cache and Enable Kernel Cache.

Anything missing?

Strange thing, didn't think I had run the version 9 update yet as I am still testing the latest release on my test server. So should have been on version 8.5, however when I look on the web server it says the version is Evoq Content Basis Version 9.0.2

I am not using a third party caching provider.