Dashboard fails with unknown error, status code 12002

Mar 18, 2015 at 9:26 PM
I have the collector working and gathering data but when I try to view the Dashboard, it sits and spins for an hour then gives:

Sys.WebForms.PageRequestManagerServerErrorException: An unknown error occurred while processing the request on the server. The status code returned from the server was: 12002

The host running the database and reporting services hits 100% CPU for the entire time with sqlservr being the offending process. When I check SQL Server, I have a page life expectance of > 1000 seconds and am not using all the memory. In addition, disk latency, disk throughput and disk queue length are all low values. Server CPU load stays at 100% even after the brower is killed and CPU load only returns to normal when the Reporting Services is stopped and restarted. I'm running on SQL 2012 and saw that it had been tested on this environment. Does anyone have an recommendations on where to look to find the source of this problem.

Ken