[OpenSIPS-Users] TLS tcp_blocking_connect errors

[Matt Hamilton]

In one of our calling scenarios, INVITEs are sent via TLS to multiple UACs in an office (all ring, one picks up). The UACs are not NATed. Once in a while, we get tcp_connect error from one of the phones. None of the tcp related parameters (e.g. tcp_connection_lifetime, etc.) are set in our script, so they all use default values.


INVITE  RURI: sip:585 at 172.16.13.164:5070;transport=tls
INVITE  RURI: sip:584 at 172.16.13.165:5061;transport=tls
INVITE  RURI: sip:583 at 172.16.13.162:5077;transport=tls
INVITE  RURI: sip:582 at 172.16.13.166:5070;transport=tls
INVITE  RURI: sip:581 at 172.16.13.163:5068;transport=tls

The error appears to be in either one of the two forms below:

ERROR:core:tcp_blocking_connect: poll error: flags 24 - 4 8 16 32

ERROR:core:tcp_blocking_connect: failed to retrieve SO_ERROR [server=172.16.13.164:5070] (111) Connection refused
ERROR:core:tcpconn_connect: tcp_blocking_connect failed
ERROR:core:tcp_send: connect failed
ERROR:tm:msg_send: tcp_send failed
ERROR:tm:t_forward_nonack: sending request failed


or


ERROR:core:tcp_blocking_connect: timeout 99170 ms elapsed from 100 ms
ERROR:core:tcpconn_connect: tcp_blocking_connect failed
ERROR:core:tcp_send: connect failed
ERROR:tm:msg_send: tcp_send failed
ERROR:tm:t_forward_nonack: sending request failed


How should I proceed to get to the bottom of this? Any parameters I should look into?

Thanks,

Matt
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