I have one situation on Orion that when I configure account limitation - group of nodes (above 100 nodes) the page becomes so slow when the user (configured account limitation) try to log on.
I've the same issue when using a homepage for this user with a network map attached. The limited account causes a heavy load for the cpu on the server due to the launched SQL request to display the granted nodes for this account only.
Hope this helps, Ralf
Ralf Hessberger
Administrator Network Monitoring IT Shared Services Northern Europe
