[Freeswitch-users] mod_xml_radius concurrency problem

[William King]

I know of boxes doing more traffic than that, and from your description
it sounds like a networking problem between the FS server and your
FreeRadius server. One thing I would suggest is checking what your idle
CPU level on your FS server and see if it's dropping below ~30%.

William King
Senior Engineer
Quentus Technologies, INC
1037 NE 65th St Suite 273
Seattle, WA 98115
Main:   (877) 211-9337
Office: (206) 388-4772
Cell:   (253) 686-5518
william.king at quentustech.com

On 03/07/2014 07:07 AM, Ričardas Stoma wrote:
> I'm using mod_xml_radius module to do radius authentication and
> accounting. When doing stress test (using sipp), i noticed that EVERY
> time when the number of concurrent calls reached exactly 245,
> authentications started to fail.
> 
> From the logs, i see these errors appearing after 245 calls: freeswitch:
> rc_send_server: no reply from RADIUS server localhost.localdomain:1812,
> 127.0.0.1
> 
> FreeSwitch and FreeRadius are communicating over localhost. I'm using 3
> servers to do this stress test. First server generates calls, seconds
> server does freeswitch + freeradius stuff and third servers is used for
> terminating calls. Calls are generated with RTP stream.
> 
> Wireshark shows that freeradius is sending correct responses to every
> mod_xml_radius request, but after 245 calls, responses do not reach
> destination (i see error messages "destination port is unreachable").
> 
> When the number of concurrent calls drops below 245, new calls are
> authenticated correctly (until it reaches that weird 245 limit).
> 
> I'm using CentOS 6 (64 bit)
> 
> Does anyone know why i'm getting this weird limitation? Is this related
> to freeswitch? freeradius server? mod_xml_radius? freeradius-client? linux?
> 
> 
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