I'm running FreeRadius 0.9.3 on a Mandrake 9.2 system with kernel 2.4.21. The system is a P3-1266MHz with 512MB of RAM.
I have 4 NAS boxes one of which only does accounting information as it authenticates from a local user database. I'm using PostgreSQL for authentication and accounting as well as detail files for accounting. I notice that memory usage continues to climb until it maxes out my system. When that happens, I start getting Kernel VM messages similar to this: kernel: VM: killing process ??????? Where ??????? is things like httpd, postmaster, qmail, etc.. For what FreeRadius does, I don't understand why it's using so much memory. It's not like I have a lot of users or anything. I may have 125 ADSL users and 40 - 50 modem users at one time. The ADSL users are fairly static and don't authenticate very often. They usually leave their routers on. Queries to the server don't happen but 5-10 per minute at most between all NAS boxes. I do get periodic accounting updates from my Cisco router (ADSL users). I've also setup FreeRadius for a couple smaller ISPs. One only has a single NAS (Ascend MAX) and about 40 dialup users of which maybe 5-10 are online at a time. They are experiencing the same problem with memory usage that I do. Here's a clip from top on memory usage of FreeRadius. I should probably also mention that I run FreeRadius via tcpserver. I tried using the softlimit to limit memory usage but that didn't go well. VIRT RES SHR S %CPU %MEM TIME+ Command 100m 22m 1672 S 0.0 4.5 3:02.79 radiusd Any help or suggestions is appreciated. Thank you, Charlie - List info/subscribe/unsubscribe? See http://www.freeradius.org/list/users.html
