Hello,

this looks like the TCP kernel buffer is overflows. How many OpenSER TCP processes do you have?

Cheers,
Daniel


On 07/26/06 15:44, Klaus Darilion wrote:
Sorry - forgotten to attach the files :-)

klaus

Klaus Darilion wrote:
Hi!

I suspect openser to have TCP problems under high load:
Scenario: sipp sends INVITE to openser, which replies with 404
I have 4x sipp with 1000 INVITEs/s and 1x sipp with 3000INVITEs/s, thus 5 TCP connections

After some time, I get error on the TCP connection with 3000INVITEs/s:
-->syslog.txt

Looks like the first part of the request is missing, but sniffing revealed that the request is proper formated as you see in the TCP packet -->ngrep.txt

Are there known high-load problems?

Any ideas how I can debug this?

regards
klaus


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------------------------------------------------------------------------

graham:/home/darilion# ngrep -I test6.cap -q 106789
input: test6.cap

T 83.136.32.91:32904 -> 83.136.32.132:5060 [A]
  INVITE sip:[EMAIL PROTECTED]:5060 SIP/2.0..Via: SIP/2.0/TCP 
83.136.32.91:5062;branch=z9hG4bK-106789-0..From: sipp <sip:[EMAIL 
PROTECTED]:5062>;tag=106789..To:
   sut <sip:[EMAIL PROTECTED]:5060>..Call-ID: [EMAIL PROTECTED]: 1 
INVITE..Contact: sip:[EMAIL PROTECTED]:5062..Max-Forwards: 70..Subject: Perform
  ance Test..Content-Type: application/sdp..Content-Length:  
135....v=0..o=user1 53655765 2353687637 IN IP4 83.136.32.91..s=-..c=IN IP4 
83.136.32.91..t=0 0..m=audio
   6002 RTP/AVP 0..a=rtpmap:0 PCMU/8000..INVITE sip:[EMAIL PROTECTED]:5060 
SIP/2.0..Via: SIP/2.0/TCP 83.136.32.91:5062;branch=z9hG4bK-106790-0..From: sipp 
<sip:
  [EMAIL PROTECTED]:5062>;tag=106790..To: sut <sip:[EMAIL 
PROTECTED]:5060>..Call-ID: [EMAIL PROTECTED]: 1 INVITE..Contact: sip:[EMAIL 
PROTECTED]:5
  062..Max-Forwards: 70..Subject: Performance Test..Content-Type: 
application/sdp..Content-Length:  135....v=0..o=user1 53655765 2353687637 IN 
IP4 83.136.32.91..s=-
  ..c=IN IP4 83.136.32.91..t=0 0..m=audio 6002 RTP/AVP 0..a=rtpmap:0 
PCMU/8000..INVITE sip:[EMAIL PROTECTED]:5060 SIP/2.0..Via: SIP/2.0/TCP 
83.136.32.91:5062;br
  anch=z9hG4bK-106791-0..From: sipp <sip:[EMAIL PROTECTED]:5062>;tag=106791..To: sut 
<sip:[EMAIL PROTECTED]:5060>..Call-ID: [EMAIL PROTECTED]: 1 I
  NVITE..Contact: sip:[EMAIL PROTECTED]:5062..Max-Forwards: 70..Subject: 
Performance Test..Content-Type: application/sdp..Content-Length:  
135....v=0..o=u
------------------------------------------------------------------------

graham:/home/darilion# Jul 26 14:29:08 graham /usr/sbin/openser[19736]: 
ERROR:parse_first_line: method not followed by SP
Jul 26 14:29:08 graham /usr/sbin/openser[19736]: ERROR:parse_first_line: bad 
message
Jul 26 14:29:08 graham /usr/sbin/openser[19736]: ERROR: parse_msg: message=<-106789-0^M From: 
sipp <sip:[EMAIL PROTECTED]:5062>;tag=106789^M To: sut <sip:[EMAIL PROTECTED]:5060>^M 
Call-ID: [EMAIL PROTECTED] CSeq: 1 INVITE^M Contact: sip:[EMAIL PROTECTED]:5062^M Max-Forwards: 
70^M Subject: Performance Test^M Content-Type: application/sdp^M Content-Length:  135^M ^M v=0^M 
o=user1 53655765 2353687637 IN IP4 83.136.32.91^M s=-^M c=IN IP4 83.136.32.91^M t=0 0^M m=audio 
6002 RTP/AVP 0^M a=rtpmap:0 PCMU/8000^M >
Jul 26 14:29:08 graham /usr/sbin/openser[19736]: ERROR: receive_msg: parse_msg 
failed
------------------------------------------------------------------------

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