[OpenSIPS-Users] Some calls fail with tcp_connect_blocking error on version 2.1.1

[Răzvan Crainea]

Hi, Owais!

You should consider upgrade OpenSIPS to a newer version (at least 
2.1.3), because there were some fixes done related to this issue. If you 
cannot upgrade right now, try to disable the auto TCP aliasing[1] (set 
it to 0).

[1] http://www.opensips.org/Documentation/Script-CoreParameters-2-1#toc90

Best regards,

Răzvan Crainea
OpenSIPS Solutions
www.opensips-solutions.com

On 06/21/2016 10:05 AM, Owais Ahmad wrote:
> I am getting the following error on opensips version 2.1.1. The 
> scenario is that I have a load balancer listening on TLS and it 
> dispatches requests to backend registrar servers listening on UDP.
> 90% of the calls are successful, but some calls fail and the load 
> balancer throws the following error when INVITE is being relayed to B 
> party.
>
> DBG:core:parse_headers: flags=2000
> DBG:core:check_ip_address: params 10.0.0.7, 10.0.0.7, 0
> DBG:core:tcp_conn_get: 0  port 56415
> DBG:core:print_ip: tcpconn_find: ip 2.4.6.8
> DBG:proto_tls:proto_tls_send: no open tcp connection found, opening 
> new one
> DBG:core:probe_max_sock_buff: getsockopt: snd is initially 16384
> DBG:core:probe_max_sock_buff: trying : 32768
> DBG:core:probe_max_sock_buff: setting snd: set=32768,verify=65536
> DBG:core:probe_max_sock_buff: trying : 65536
> DBG:core:probe_max_sock_buff: setting snd: set=65536,verify=131072
> INFO:core:probe_max_sock_buff: using snd buffer of 128 kb
> INFO:core:init_sock_keepalive: TCP keepalive enabled on socket 6
> ERROR:core:tcp_connect_blocking: timeout 2132 ms elapsed from 3000 s
> ERROR:proto_tls:tls_sync_connect: tcp_blocking_connect failed
> ERROR:proto_tls:proto_tls_send: connect failed
> ERROR:tm:msg_send: send() for proto 3 failed
> ERROR:tm:t_forward_nonack: sending request failed
> DBG:tm:t_relay_to: t_forward_nonack returned error
> DBG:core:parse_headers: flags=ffffffffffffffff
> DBG:core:check_ip_address: params 10.0.0.7, 10.0.0.7, 0
> DBG:tm:reset_timer: (group 3, tl=0x7fcb6a490970)
> DBG:tm:reset_timer: (group 0, tl=0x7fcb6a4909a0)
> DBG:tm:cleanup_uac_timers: RETR/FR timers reset
> DBG:tm:set_timer: relative timeout is 500000
> DBG:tm:insert_timer_unsafe: [4]: 0x7fcb6a490898 (609300000)
> DBG:tm:insert_timer_unsafe: [0]: 0x7fcb6a4908c8 (618)
>
>
> Any hints as to what might be going wrong?
>
> Regards,
> Owais
>
>
>
>
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