Daniel-Constantin Mierla wrote:
Hello,
this looks like the TCP kernel buffer is overflows. How many OpenSER TCP
processes do you have?
children=100, --> ~208 processes. How can a TCP kernel buffer overflow?
Shouldn't TCP flow control take care of this?
regards
klaus
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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_______________________________________________
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