[SR-Users] Kamailio replies with SIP/2.0 500 Service Unavailable Under load
Sergey Basov
sergey.v.basov at gmail.com
Fri Jan 15 10:18:22 CET 2016
Hello.
I had similar problems while load test kamailio in front of yate. Yate
have rate limiting enabled by default.
May be you have it on Freeswitch?
I have made loadtest with sipp, kamailio 4.2.6, rtpengines and 2
Asterisk servers as backend.
Test was success with 8000 concurrent calls and call-rate 200 cps.
--
Best regards,
Sergey Basov e-mail: sergey.v.basov at gmail.com
tel: (+38067) 403-62-54
2016-01-13 22:56 GMT+02:00 Daniel-Constantin Mierla <miconda at gmail.com>:
> Hello,
>
> as an extra hint on top of Carsten's remarks: search your configuration
> for sl_send_reply("500", "Service Unavailable") or t_reply/send_reply
> with same parameters. Then you can identify better why that reply is
> sent. As Carsten pointed, such reply code and reason text is not coming
> from source code, but config.
>
> Cheers,
> Daniel
>
> On 12/01/16 08:13, Carsten Bock wrote:
>> Hi,
>>
>> If you are using dispatcher module or similar, then the bottle-neck is
>> not Kamailio, but Freeswitch. I guess, Kamailio simply doesn't get any
>> answer from the AS and thus replies with an error as no AS is
>> available. Kamailio by default/minimal configuration won't send any
>> errors, it depends on your configuration.
>>
>> Thanks,
>> Carsten
>>
>>
>>
>> 2016-01-12 7:27 GMT+01:00 sandeep goje <sandeep.goje at gmail.com>:
>>> Hi,
>>>
>>> I am doing load testing with of Kamailio. I have sipp (version 3.3) as the
>>> load generator,Kamailio(4.2.7) as Load Balancer and Freeswitch (1.6.5) as
>>> Gateways.
>>>
>>> I am using the following command to generate load
>>> ./sipp -sf uac.xml -d 2000 -m 4000 -l 1000 -r 200 -trace_stat -i SIPP_IP
>>> -p 15060 --trace_err -trace_error_codes -trace_calldebug -trace_screen
>>> KAM_IP
>>>
>>> When the rate of generation is below 80 (-r 80), Kamailio behaves fine.But
>>> if we go beyond 80, Kamailio starts sending "500 Service Unavailable"
>>>
>>> 2016-01-12 11:18:15.375103 1452577695.375103: Aborting call on
>>> unexpected message for Call-Id '96-32493 at SIPP_IP': while expecting '180'
>>> (index 2), received 'SIP/2.0 500 Service Unavailable^M
>>> Via: SIP/2.0/UDP SIPP_IP:15060;branch=z9hG4bK-32493-96-0^M
>>> From: sipp <sip:sipp at SIPP_IP:15060>;tag=96^M
>>> To: sut
>>> <sip:service at KAM_IP:5060>;tag=55f576f507e822fa6633cf4bc22740e6-6660^M
>>> Call-ID: 96-32493 at SIPP_IP^M
>>> CSeq: 1 INVITE^M
>>> Server: kamailio (4.2.7 (x86_64/linux))^M
>>> Content-Length: 0^M
>>>
>>> With the above command, sipp output is
>>>
>>> ----------------------------- Statistics Screen ------- [1-9]: Change Screen
>>> --
>>> Start Time | 2016-01-12 11:26:07.723764 1452578167.723764
>>> Last Reset Time | 2016-01-12 11:27:16.280901 1452578236.280901
>>> Current Time | 2016-01-12 11:27:16.282737 1452578236.282737
>>> -------------------------+---------------------------+--------------------------
>>> Counter Name | Periodic value | Cumulative value
>>> -------------------------+---------------------------+--------------------------
>>> Elapsed Time | 00:00:00:001000 | 00:01:08:558000
>>> Call Rate | 0.000 cps | 58.345 cps
>>> -------------------------+---------------------------+--------------------------
>>> Incoming call created | 0 | 0
>>> OutGoing call created | 0 | 4000
>>> Total Call created | | 4000
>>> Current Call | 0 |
>>> -------------------------+---------------------------+--------------------------
>>> Successful call | 0 | 1192
>>> Failed call | 0 | 2808
>>> -------------------------+---------------------------+--------------------------
>>> Response Time 1 | 00:00:00:000000 | 00:00:15:102000
>>> Call Length | 00:00:00:000000 | 00:00:10:614000
>>> ------------------------------ Test Terminated
>>> --------------------------------
>>>
>>> Kamailio is run with command /usr/local/sbin/kamailio -f
>>> /usr/local/etc/kamailio/kamailio.cfg -P /var/run/kamailio/kamailio.pid -m
>>> 512 -M 8 -u kamailio -g kamailio
>>>
>>> version: kamailio 4.2.7 (x86_64/linux) 727746
>>> flags: STATS: Off, USE_TCP, USE_TLS, USE_SCTP, TLS_HOOKS, USE_RAW_SOCKS,
>>> DISABLE_NAGLE, USE_MCAST, DNS_IP_HACK, SHM_MEM, SHM_MMAP, PKG_MALLOC,
>>> DBG_QM_MALLOC, USE_FUTEX, FAST_LOCK-ADAPTIVE_WAIT, USE_DNS_CACHE,
>>> USE_DNS_FAILOVER, USE_NAPTR, USE_DST_BLACKLIST, HAVE_RESOLV_RES
>>> ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16,
>>> MAX_URI_SIZE 1024, BUF_SIZE 65535, DEFAULT PKG_SIZE 8MB
>>> poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
>>> id: 727746
>>> compiled on 15:59:03 Jan 11 2016 with gcc 4.6.3
>>>
>>> System : Ubuntu 12.04.4 LTS
>>> Linux devops10-60-20-169 3.11.0-15-generic #25~precise1-Ubuntu SMP Thu Jan
>>> 30 17:39:31 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
>>>
>>> I am not seeing any errors in Kamailio Logs.
>>>
>>> Any pointers on how to get it to serve more calls/sec
>>>
>>> Regards,
>>> Sandeep
>>>
>>> The most profound statements are often said in silence.
>>> -Lynn Johnston
>>>
>>> _______________________________________________
>>> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list
>>> sr-users at lists.sip-router.org
>>> http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
>>>
>>
>>
>
> --
> Daniel-Constantin Mierla
> http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
> Book: SIP Routing With Kamailio - http://www.asipto.com
> http://miconda.eu
>
>
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