I was wondering whether anyone here has tried using Tiki with a very high number of users — something like 200-300k — and if so, what sort of experience they had with it? In order to test whether Tiki could handle that many, I ran a SQL import of 50k users and created an initial usergroup entry for each as well (basically, replicating what the Admin Users batch import tool did, but directly using SQL). When I tried to view the Admin Users page post-import, it failed to load the page at the 9sec mark.
When I turned on display_errors in php, I got a Fatal Error: Maximum allocated memory exceeeded (I had my memory_limit set to 32M). I set it up to memory_limit = 64M and then restarted Apache; when I tried to load the Admin Users page again it just failed load with no errors this time (after about 18sec).
Has anyone else tried to get Tiki to work with a very large number of users like this, and if so, what did you do to get around these sorts of problems? Thanks!