Ups.
On 03.01.2013 15:11, Klaus Darilion wrote:
How much traffic do you want to send?
When does the problem happen? At which message size does it happen?
I just wonder that the normal options which works for us do not work for
you and t
and the problem is code related.
1. Check if Kamailio really uses the buffer size you have configured
(via sercmd config framework):
# kamctl sercmd cfg.get tcp rd_buf_size
2. Test on which message size the problems start. Attached is a perl
script which allows you to generate OPTIONS messages with a specified
message size, e.g:
# ./send-tcp-message.pl 127.0.0.1:5060 2048
regards
Klaus
regards
Klaus
On 03.01.2013 14:21, Amit Elbaz wrote:
I increased tcp_rd_buf_size, but it did not help.
I don't think this is the problem.
In tcp_read.c:
int tcp_read(struct tcp_connection *c, int* flags)
{
int bytes_free, bytes_read;
struct tcp_req *r;
int fd;
r=&c->req;
fd=c->fd;
bytes_free=r->b_size- (int)(r->pos - r->buf);
if (unlikely(bytes_free==0)){
LOG(L_ERR, "ERROR: tcp_read: buffer overrun, dropping\n");
r->error=TCP_REQ_OVERRUN;
return -1;
}
how to i increase r->b_size ?
Thanks for you help, Amit.
On Wed, Jan 2, 2013 at 6:51 PM, Klaus Darilion
<[email protected] <mailto:[email protected]>>
wrote:
Hi!
-b is the receive buffer of the socket in the OS (for UDP tweaking,
I do not know if this is relevant for TCP), so not related to this
problem as this problem happens inside Kamailio.
Actually 15K is rather small, really strange that you get errors.
So, I did some tests:
1. tcp_rd_buf_size must be increased. The documentation is bad as it
meantions "TCP datagram" but actually means the maximum size of SIP
(or HTTP) message that can be received.
2. tcp_rd_buf_size is internally limited to 16MBytes. If you need
more, you have to change the code in:
tcp_options.c: { "rd_buf_size", CFG_VAR_INT | CFG_ATOMIC, 512,
16777216, 0, 0,
3. If you use real large message you may need to increase the
private memory, and if you forward it with tm module, also the
shared memory.
regards
Klaus
Am 02.01.2013 13:59, schrieb Amit Elbaz:
this still does not solve the problem.
I've also tried running Kamailio with *-b 32768* option.
here are the logs:
Jan 2 14:54:24 debdev kamailio[2580 <tel:%5B2580>]: ERROR: <core>
[tcp_read.c:344]: ERROR: tcp_read: buffer overrun, dropping
Jan 2 14:54:24 debdev kamailio[2580 <tel:%5B2580>]: ERROR: <core>
[tcp_read.c:1127]: ERROR: tcp_read_req: error reading
Thanks for your help.
On Wed, Jan 2, 2013 <tel:2013> at 1:17 PM, Andrew Pogrebennyk
<[email protected] <mailto:[email protected]>> wrote:
Hi,
you may try changing the tcp_rd_buf_size and tcp_conn_wq_max:
http://www.kamailio.org/wiki/cookbooks/3.3.x/core#tcp_conn_wq_max
And since this in development mailing list I'd like to point
at what
seem an iaccuracy in documentation: several options refer to
the core
parameter called tcp_write_buf, which isn't described in the
cookbook:
tcp_conn_wq_max
Maximum bytes queued for write allowed per connection.
Attempting to
queue more bytes would result in an error and in the
connection being
closed (too slow). If *tcp_write_buf* is not enabled, it has
no effect.
I hope Daniel or someone who knows reads this..
BR,
Andrew
On 01/02/2013 10:38 AM, Amit Elbaz wrote:
> Hi,
>
> While sending a big TCP SIP message (15K+), I get "tcp_read:
buffer
> overrun, dropping" message.
> this happens after a few fragments have been sent, and then
i get this
> message and the connection resets.
> is it possible to set the max-buffer size through
configuration? if so,
> where?
>
> Thanks, Amit.
>
>
> _______________________________________________
> sr-dev mailing list
> [email protected]
<mailto:[email protected]>
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>
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#!/usr/bin/perl -w
#
# syntax: send-tcp-message.pl <host:port> <size> [<id>]
if ( @ARGV < 2 ) {
print "ERROR, need at least 2 parameters. Syntax is:\n";
print " send-tcp-message.pl <host:port> <size> [<id>]\n";
print " host:port: where to send the request\n";
print " size: total size of the request, including headers and
body\n";
print " id: optional, parameter used in from-tag, call-id and
Via-branch\n";
print " exit the programm with CTRL-C\n";
print "\n";
print "Examples:\n";
print " send-tcp-message.pl 127.0.0.1:5060 1200\n";
print " send-tcp-message.pl 127.0.0.1:5060 100k (100*1000)\n";
print " send-tcp-message.pl 127.0.0.1:5060 10m (10*1000*1000)\n";
print " send-tcp-message.pl 127.0.0.1:5060 100K (100*1024)\n";
print " send-tcp-message.pl 127.0.0.1:5060 10M (10*1024*1024)\n";
exit(1);
}
# URI to be used in the SIP message (RURI, From, To)
my $uri = "sip:test\@example.com";
# connect to destination
use IO::Socket;
my $server = $ARGV[0];
$remote = IO::Socket::INET->new(
Proto => "tcp",
PeerAddr => "$server",
);
if ( !$remote) {
print "ERROR: Cannot connect to $server\n";
exit(1);
}
# create random id for from-tag, call-id and Via-branch
my $id;
if(!defined $ARGV[2]) {
$id = int(rand(10000000000))+1;
} else {
$id = $ARGV[2];
}
# convert message size
my $size = $ARGV[1];
if ( substr($ARGV[1],-1,1) eq "k") {
$size = substr($ARGV[1],0,length($ARGV[1])-1) * 1000;
}
if ( substr($ARGV[1],-1,1) eq "m") {
$size = substr($ARGV[1],0,length($ARGV[1])-1) * 1000*1000;
}
if ( substr($ARGV[1],-1,1) eq "K") {
$size = substr($ARGV[1],0,length($ARGV[1])-1) * 1024;
}
if ( substr($ARGV[1],-1,1) eq "M") {
$size = substr($ARGV[1],0,length($ARGV[1])-1) * 1024*1024;
}
$headers = <<END;
OPTIONS $uri SIP/2.0\r
Via: SIP/2.0/TCP 127.0.0.1:5061;branch=z9hG4bK-$id;rport\r
From: <$uri>;tag=$id\r
To: <$uri>\r
Call-ID: $id\r
CSeq: 1 OPTIONS\r
Contact: sip:foobar\@127.0.0.1\r
Content-Type: text/plain\r
Content-Length: 0000000000\r
Expires: 30\r
Event: presence\r
Accept: application/pidf+xml, application/xpidf+xml\r
Supported: eventlist\r
Accept: application/rlmi+xml\r
Accept: multipart/related\r
\r
END
my $headerslen = length($headers);
my $bodylen = $size - $headerslen;
if ($bodylen < 0) {
print "ERROR: The size of the message headers ($headerslen) is already
bigger then the specified message size ($size)!\n";
exit(1);
}
my $body = 'a' x $bodylen;
my $bodylenstring = sprintf("%010d", $bodylen);
$headers=~ s/0000000000/\Q$bodylenstring/;
print "Sending a SIP message with $size bytes to $server\n";
print "Message headers are:\n";
print $headers;
print $remote $headers;
print $remote $body;
print "Finished sending a SIP message with $size bytes to $server\n";
print "Waiting for a response. Press CTRL-C to exit.\n\n";
while ( <$remote> ) {
print
}
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