Recommended number of threads
McNutt, Justin M.
McNuttJ at missouri.edu
Tue Feb 11 21:53:08 CET 2014
I've been seeing some unexplained failures to authenticate 802.1X clients when my system is under heavier load, and I suspect that I don't have enough threads running. For reference, I currently have four servers in a load balanced group with identical configs. Thread settings are these:
max_servers = 32
min_spare_servers = 3
max_spare_servers = 10
max_requests_per_server = 0
We have about 14,500 wireless clients at peak times, though that number will climb, I'm sure.
Is there a rule of thumb that will tell me how many threads I should have (max_servers)? Also, I suspect that there have been authentication failures due to all threads on a server being busy. Is there a good way to confirm that? I've poked around in the radiusd logs a bit, but haven't found much, other than the odd "Login failed" with no reason given. (For "normal" failures, there are two messages, one of which has a cause like "bad password" or "account locked out" or some such thing.)
Advice is welcome.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Freeradius-Users