Kannel quits without reporting fatal error

Hello,

I have an instance of Kannel running (1.3.1 on debian linux) which
communicates to a single SMSC via SMPP. The SMSC connection in question
can go up and down like a yo-yo. After a recent bout the Kannel smsbox
and bearerbox'es simply vanished without a trace (nothing fatal in
either log).

The logs have the morning SIGHUP when logrotate ran - kannel continued
to log connection failure for the next 1.5 hours then vanished without a
trace (no boxen processors running when I was alerted). Below is a
snippet from the bearerbox logs (set to level 1)... 

Can anyone think of a reason why Kannel might give up on a bad
connection after a time (is there something in io_thread in smpp module
that might cause a shutdown without reporting - I can only see, if fail
continue, etc - all looks good).  

Alternatively can anyone suggest position of addition debug printouts or
some external monitoring of processors/threads that I can do that might
help find the problem. The obvious thing to do is setup test connection
and simply drop the interface to SMSC and leave running trying to
connect - just wondering about supplementary logging that might help.  

All comments/suggestions appreciated. 
Cheers,
Alan


2003-07-07 07:27:13 [0] WARNING: SIGHUP received, catching and
re-opening logs
2003-07-08 07:37:20 [0] WARNING: SIGHUP received, catching and
re-opening logs
2003-07-08 08:15:55 [6] ERROR: SMPP[...]: I/O error or other error.
Re-connecting.
2003-07-08 08:15:55 [5] ERROR: SMPP[...]: I/O error or other error.
Re-connecting.
...
...
2003-07-08 09:44:27 [5] ERROR: error connecting to server `...' at port
`...'
2003-07-08 09:44:27 [6] ERROR: SMPP[...]: Couldn't connect to server.
2003-07-08 09:44:27 [5] ERROR: SMPP[...]: Couldn't connect to server.
2003-07-08 09:44:27 [6] ERROR: SMPP[...]: Couldn't connect to SMS center
(retrying in 10 seconds).
2003-07-08 09:44:27 [5] ERROR: SMPP[...]: Couldn't connect to SMS center
(retrying in 10 seconds).
2003-07-08 09:46:56 [5] ERROR: SMPP[...]: I/O error or other error.
Re-connecting.
2003-07-08 09:46:56 [6] ERROR: SMPP[...]: I/O error or other error.
Re-connecting.
2003-07-08 09:46:56 [5] ERROR: connect failed
2003-07-08 09:46:56 [5] ERROR: System error 111: Connection refused
2003-07-08 09:46:56 [5] ERROR: error connecting to server `...' at port
`...'
2003-07-08 09:46:56 [5] ERROR: SMPP[..]: Couldn't connect to server.
2003-07-08 09:46:56 [5] ERROR: SMPP[..]: Couldn't connect to SMS center
(retrying in 10 seconds).
2003-07-08 09:46:56 [6] ERROR: connect failed
2003-07-08 09:46:56 [6] ERROR: System error 111: Connection refused
2003-07-08 09:46:56 [6] ERROR: error connecting to server `...' at port
'...'
2003-07-08 09:46:56 [6] ERROR: SMPP[..]: Couldn't connect to server.
2003-07-08 09:46:56 [6] ERROR: SMPP[..]: Couldn't connect to SMS center
(retrying in 10 seconds).



-- 
Alan McNatty <[email protected]>