Try the same config removing the xlogs statements. I've seen in several deployments that logging is quite resource demanding and may cause the behaviour you are seeing.
Some versions of SIPp had unreliable behaviour when the cpp was high (I think 200cpp enters this level) so before entering into kamailio/openser/opensips/ser issues capture the traffic and watch whether SIPp sends the messages in the correct order.
hope it helps,
Samuel.
2008/8/13 Ali Soltani mail@alirsm.com
Hi,
I am not getting any error message in the openSER log file. No database lookups or any intensive operations. OpenSER is simply relay the traffic. Machine load is only few %, more than 90% idle. I have tried 0, 200 msec, 500 msec pause time between 180 and 200. The problem still exists.
I also tried to dump the openSER request / responses to the log file to check the message sequence. However, the log statement in the onreply_route[1] will dump the responses received by openSER from callee, . How can I dump the responses that openSER proxy back to caller (after modifying via field) ?
route { t_on_reply("1"); ... }
route[1] { xlog("L_INFO","\n\n$Cbg[ Method $rm from $si ]$Cxx\n$mb$Cbg[ End of Request ]$Cxx\n"); if (!t_relay()) { xlog("replay error"); sl_reply_error(); }; exit; } onreply_route[1] { xlog("L_INFO","\n\n$Cbg[ Method $rm from $si ]$Cxx\n$mb$Cbg[ End of Request ]$Cxx\n"); }
*From:* Ovidiu Sas osas@voipembedded.com *Sent:* Wednesday, August 13, 2008 9:04 AM *To:* Henning Westerholt henning.westerholt@1und1.de *Cc:* Ali Soltani mail@alirsm.com ; users users@lists.kamailio.net *Subject:* Re: [Kamailio-Users] openSER with 200 cps
Also, from the sipp script, after how much time the 200ok is sent after the 180 was sent? Do you let any ring time at all in your script?
On Wed, Aug 13, 2008 at 4:31 AM, Henning Westerholt henning.westerholt@1und1.de wrote:
On Tue, August 12, 2008 11:33 pm, Ali Soltani wrote:
I am analyzing a simple scenario of SIP message exchanges for call setup between two SIP end-point and a sip proxy. The SIP signaling messages
for
call setup are exchanged between two SIP end-points (using SIPp uac and uas) via the openSER intermediary proxy.
Caller Callee SIPp-UAC --> openSER --> SIPp-UAS
No delay has been set between 180, 200 responses messages sent by callee (SIPp-UAS). After using SIPp to create more than 200 cps, openSER
starts
sending messages out of order (sending 200 before 180). This causes all calls to fail.
Hi Ali,
do you get any error messages in the log files this time? What version of OpenSER do you use? Do you do any database lookups or some other resource intensive operations in your configuration? What is the load of the machine when the problems starts to appear?
Cheers,
Henning
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