Error: "Discarding duplicate request..."

[Mike Diggins]

I am running NTLM_AUTH for mschap authentication with an MS AD at the back 
end. I suppose that could be the culprit. If so, is upgrading FreeRadius 
likely to resolve that (not knowing exactly what the problem is). Anything 
I could configure at the FreeRadius end to make that work a bit better?

-Mike


On Wed, 15 Sep 2010, Alan Buxey wrote:

> 2.1.3 is very old now , 2.1.9 is current and has many fixes over that - 
> check its changelog .. this error message suggests that you've got a 
> slow backend somewhere - be that ldap, sql or even a bit of perl
>
> ----- Reply message -----
> From: "Mike Diggins" <mike.diggins at mcmaster.ca>
> Date: Wed, Sep 15, 2010 16:22
> Subject: Error: "Discarding duplicate request..."
> To: "FreeRadius users mailing list" <freeradius-users at lists.freeradius.org>
>
> 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
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-7 port 32769 - ID: 173 due to unfinished request 35240
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 220 due to unfinished request 35239
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-7 port 32769 - ID: 173 due to unfinished request 35240
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 220 due to unfinished request 35239
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 221 due to unfinished request 35244
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client wlc-8 port 32769 - ID: 221 due to unfinished request 35244
> Sep 15 10:07:53 prad02 radiusd[10632]: Discarding duplicate request from
> client FHSWLC-1 port 32768 - ID: 205 due to unfinished request 35245
>
> -Mike
>