Error: "Discarding duplicate request..."

Phil Mayers p.mayers at imperial.ac.uk
Wed Sep 15 17:32:41 CEST 2010


On 15/09/10 16:20, Mike Diggins wrote:
> Our students have returned this week, and I've noticed a couple new
> messages logged to my FreeRadius 2.1.3 server. When it happens, my
> controllers fail over to the secondary Radius server. This has happened
> a few times. My Radius servers are only lightly loaded, and only
> configured to do authentication. No databases. Any idea what might be
> causing this?
>
> Sep 15 10:06:44 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 218 due to unfinished request 35236
> Sep 15 10:07:01 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 219 due to unfinished request 35237
> Sep 15 10:07:24 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 220 due to unfinished request 35239
> Sep 15 10:07:41 prad02 radiusd[10632]: WARNING: Unresponsive child for
> request 35239, in module  component
> Sep 15 10:07:52 prad02 radiusd[10632]: WARNING: Unresponsive child for
> request 35240, in module  component

Well, something is running too slowly here.

If you don't have ldap or sql configured, and aren't using "exec" to run 
any scripts, then the only other candidates I can think of are the 
"ntlm_auth" helper (if you're running mschap) or the various utmp 
modules, which are slow.



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