I have a custom solution which retrieves all the list items from the list with 12000 items. I have used splistitemcollection position method to get listitems to retrieve list items. It works fine in Dev environment, But when i am deploying it in Test environment. Sharepoint throws list view threshold error.
My code is looks exactly as the below link provided by (Vedran Rasol) Server timeout issue when getting 500000 records from SharePoint 2010 list.