I am facing an issue where content is not crawled properly by SharePoint 2013. Following warning is displayed in crawled logs.
The claims cookie used by the crawler has expired. ( Error from SharePoint site: HttpStatusCode Unauthorized The request failed with HTTP status 401: Unauthorized., CorrelationID: "guid"; SearchID = GUID )
Any one having this issue or know solution to it? Thanks.
EDIT: We have added custom HTTP module for sliding session and we expire cookie after 30 minutes.