9 Sep
2014
9 Sep
'14
4:09 p.m.
Hello,
have you increased the max connections limit?
- http://www.kamailio.org/wiki/cookbooks/devel/core#tcp_max_connections
The PKG_MEM_POOL_SIZE is more or less same as -m parameter, so you don't
need to change the sources if you need higher value.
Cheers,
Daniel
On 09/09/14 14:57, Laurent Schweizer wrote:
Hi,
Yes I check them, the only 2 point that I have actually not tested is
to change :
- You might have to decrease TCP_BUF_SIZE to a smaller value (e.g 8K)
- You might want to increase PKG_MEM_POOL_SIZE (for large queues)
I’m using Kamailio 3.2.1
I have set:
tcp children to 50
tcp_max_connections=104096
started wit -m 4096 -M 64
with sockstat I have:
sockets: used 2171
TCP: inuse 913 orphan 1 tw 4 alloc 939 mem 29
UDP: inuse 440 mem 372
UDPLITE: inuse 0
RAW: inuse 1
FRAG: inuse 0 memory 0
BR
Laurent
*De :*sr-users-bounces@lists.sip-router.org
[mailto:sr-users-bounces@lists.sip-router.org] *De la part de*
Daniel-Constantin Mierla
*Envoyé :* mardi 9 septembre 2014 14:46
*À :* Kamailio (SER) - Users Mailing List
*Objet :* Re: [SR-Users] TCP SYN only
Hello,
have you checked the file in the sources located at doc/tcp_tunning.txt?
Cheers,
Daniel
On 09/09/14 14:40, Laurent Schweizer wrote:
Dear all,
Since few weeks I have more and more TCP issue, I can see that sometimes the client
send a TCP SYN but never get any response.
106.123315 62.12.179.104 -> X.X.X.X TCP 39174 > sip [SYN] Seq=0 Win=4380 Len=0
MSS=1380 TSV=4294942209 TSER=0 WS=1
109.124384 62.12.179.104 -> X.X.X.X TCP 39174 > sip [SYN] Seq=0 Win=4380 Len=0
MSS=1380 TSV=4294942510 TSER=0 WS=1
111.202946 62.12.179.104 -> X.X.X.X TCP 4993 > sip [SYN] Seq=0 Win=4380 Len=0
MSS=1380 TSV=4294942717 TSER=0 WS=1
114.204707 62.12.179.104 -> X.X.X.X TCP 4993 > sip [SYN] Seq=0 Win=4380 Len=0
MSS=1380 TSV=4294943018 TSER=0 WS=1
I have found on internet many doc regarding TCP and max connection issue and I have
already done change in sysctl (see below) to increase the number of tcp connection but
seems still not ok.
Any idea ?
Best regards
Laurent
/net.ipv4.ip_forward = 0/
/net.ipv4.conf.default.rp_filter = 1/
/net.ipv4.conf.default.accept_source_route = 0/
/kernel.sysrq = 0/
/kernel.core_uses_pid = 1/
/net.ipv4.tcp_syncookies = 0/
/net.bridge.bridge-nf-call-ip6tables = 0/
/net.bridge.bridge-nf-call-iptables = 0/
/net.bridge.bridge-nf-call-arptables = 0/
/kernel.msgmnb = 65536/
/kernel.msgmax = 65536/
/kernel.shmmax = 68719476736/
/kernel.shmall = 4294967296/
/net.ipv4.tcp_timestamps = 1/
/net.ipv4.tcp_fin_timeout = 30/
/net.ipv4.tcp_keepalive_time = 1200/
/net.ipv4.tcp_max_syn_backlog = 8192/
/net.ipv4.tcp_max_tw_buckets = 5000/
/fs.file-max = 2097152/
/net.ipv4.ip_local_port_range = 2000 65535/
/net.ipv4.tcp_max_tw_buckets = 1440000/
/net.ipv4.tcp_tw_recycle = 1/
/net.ipv4.tcp_tw_reuse = 1/
/net.core.somaxconn = 65536/
/net.core.netdev_max_backlog = 65536/
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--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda <http://twitter.com/#%21/miconda>
-http://www.linkedin.com/in/miconda
Next Kamailio Advanced Trainings 2014 -http://www.asipto.com
Sep 22-25, Berlin, Germany
--
Daniel-Constantin Mierla
http://twitter.com/#!/miconda - http://www.linkedin.com/in/miconda
Next Kamailio Advanced Trainings 2014 - http://www.asipto.com
Sep 22-25, Berlin, Germany