Re: [OpenSIPS-Users] TCP Errors

[Gary Nyquist]

Thanks Bogdan for looking into it.

 

Here is the version:

opensips -V
version: opensips 1.11.1-tls (x86_64/linux)
flags: STATS: On, USE_TCP, USE_TLS, DISABLE_NAGLE, SHM_MEM, SHM_MMAP, PKG_MALLOC, F_MALLOC, USE_SHM_MEM, FAST_LOCK-ADAPTIVE_WAIT
ADAPTIVE_WAIT_LOOPS=1024, MAX_RECV_BUFFER_SIZE 262144, MAX_LISTEN 16, MAX_URI_SIZE 1024, BUF_SIZE 65535
poll method support: poll, epoll_lt, epoll_et, sigio_rt, select.
git revision: dbc8653
main.c compiled on 16:17:43 Jun 26 2014 with gcc 4.4.7

 

Yes, this bug is reproducable.

When it appears, the log file instantly gets filled with hundreds of repeating lines like this:

 

Jun 26 20:30:31 ip-10-0-0-30 /usr/sbin/opensips[15229]: DBG:core:handle_tcpconn_ev: data available on 0x7f40bcec7398 6
Jun 26 20:30:31 ip-10-0-0-30 /usr/sbin/opensips[15229]: DBG:core:io_watch_del: io_watch_del op on index -1 6 (0x7dff20, 6, -1, 0x0,0x1) fd_no=110 called
Jun 26 20:30:31 ip-10-0-0-30 /usr/sbin/opensips[15229]: ERROR:core:io_watch_del: BUG - trying to del fd 6 with flags 2 1
Jun 26 20:30:31 ip-10-0-0-30 /usr/sbin/opensips[15229]: DBG:core:handle_tcpconn_ev: data available on 0x7f40bcec7398 6

Jun 26 20:30:31 ip-10-0-0-30 /usr/sbin/opensips[15229]: DBG:core:io_watch_del: io_watch_del op on index -1 6 (0x7dff20, 6, -1, 0x0,0x1) fd_no=110 called
Jun 26 20:30:31 ip-10-0-0-30 /usr/sbin/opensips[15229]: ERROR:core:io_watch_del: BUG - trying to del fd 6 with flags 2 1

 

Thanks again for your help.

 

BR

-Gary

 

 

Sent: Thursday, June 26, 2014 at 10:56 AM
From: "Bogdan-Andrei Iancu" <bog...@opensips.org>
To: "Gary Nyquist" <g...@gmx.us>
Cc: "OpenSIPS users mailling list" <users@lists.opensips.org>
Subject: Re: [OpenSIPS-Users] TCP Errors

Hi,

That bug log actually says OpenSIPS tries to remove a connection marked as READ from a list for WRITEs :)..

I will look into that. What exact version do you use (opensips -V) ? also, can you reproduce this  bug ?

Thanks and regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com

On 25.06.2014 20:27, Gary Nyquist wrote:

Thanks Bogdan for the detailed reply.

 

I implemented your advice. 

Those error messages are now gone.

 

But seeing a new error now; not sure if it is related to that...

 

ERROR:core:io_watch_del: BUG - trying to del fd 36 with flags 2 1

 

Any advice?

 

BR

-Gary

 

Sent: Wednesday, June 25, 2014 at 5:54 AM

From: "Bogdan-Andrei Iancu" <bog...@opensips.org>

To: "OpenSIPS users mailling list" <users@lists.opensips.org>, g...@gmx.us

Subject: Re: [OpenSIPS-Users] TCP Errors



Hi,



Those messages say that OpenSIPS tried to open a TCP connection to a party which does not respond -> there was a timeout for connect in 10 seconds. Because of this blocking in connects, there were not more opensips workers available to handle other traffic.



So what you need to do is :

    - minimize the impact of the blocking connect - see my previous email on reducing the connect timeout

    - you may configure OpenSIPS not to open new TCP connect (but to reuse the existing ones, open by clients). See tcp_no_new_conn_bflag

            http://www.opensips.org/Documentation/Script-CoreParameters-1-11#toc96

    - try to understand the SIP patterns where such TCP connect fails so you can avoid them at script level.



Regards,

Bogdan-Andrei Iancu
OpenSIPS Founder and Developer
http://www.opensips-solutions.com
On 24.06.2014 21:34, Gary Nyquist wrote:




Hi,

 

The following lines are repeating in the log.

 

ERROR:core:tcp_blocking_connect: timeout 10 s elapsed from 10 s

ERROR:core:tcpconn_connect: tcp_blocking_connect failed

ERROR:core:tcp_send: connect failed

ERROR:tm:msg_send: tcp_send failed

 

INFO:core:send2child: no free tcp receiver, connection passed to the least busy one

 

Any guess, what could be the reason?

 

Best

--Gary

 


 

 
 

_______________________________________________
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users

_______________________________________________
Users mailing list
Users@lists.opensips.org
http://lists.opensips.org/cgi-bin/mailman/listinfo/users