[SR-Users] kamailio logging

[Alex Balashov]

Hi Noa,

Pretty much the only reasonable way to do it is to throw your own xlog() 
statements into the default config, which contain the information you 
want.

The development community reasons that everyone is going to want 
different logging points and different content in those logs, so it is 
not necessarily appropriate to impose.

I would say throw a couple of xlog() statements in the config, maybe 
like this:

    xlog("L_INFO", "($ci) Entering NAT handler\n");

(logging the Call-ID lets you trace what happened to a single "call" 
that shares Call-ID across all requests and replies)

Then, direct the output to a custom log file for easy viewing.  Set the 
syslog logging facility to, say, LOG_LOCAL0, and then redirect the 
LOCAL0 facility in your syslog daemon to a separate file, e.g. in the 
case of /etc/rsyslog.conf or Debian-style /etc/sysklogd.conf or classic 
/etc/syslog.conf:

     local0.*				-/var/log/kamailio.log

Then restart the syslog daemon, restart Kamailio, and see if you like 
what you get.

Cheers,

-- Alex

On 01/02/2011 02:48 PM, Noa Resare wrote:

> Is there a way to get a sensible amount of logging done from kamailio?
>
> Being new to the VoIP space (but with plenty of experience with i.e. web
> and email servers) I tried to get a running system by installing the
> kamailio package and starting up, trying to get it to behave by looking
> at log output. I use the blink SIP client in OSX, that has a SIP data
> dump log view and from that I can deduce that the server returns
> "SIP/2.0 483 Too Many Hops", however there is nothing helpful in the
> server logs.
>
> If I set debug=2 i get nothing useful, and if I set debug=3 I get insane
> amounts of logging, thousands of lines per connection attempt. Finding
> something meaningful in there seems like a herculean task.
>
> /noa
>
> ps. The actual problem with 483 Too Many Hops sounded a lot like 'Mail
> loops back to myself' that you get on smtp servers when the relevant
> virtual domain is not configured, so it seems I was able to handle that
> problem by adding WITH_MULTIDOMAIN and configuring my domain with kamctl
> domain add. Now I get "482 Loop Detected" instead, which seems like a
> non-fatal condition. The logging question still stands though.
>
> --
> Everything is secret.
>
>
>
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-- 
Alex Balashov - Principal
Evariste Systems LLC
260 Peachtree Street NW
Suite 2200
Atlanta, GA 30303
Tel: +1-678-954-0670
Fax: +1-404-961-1892
Web: http://www.evaristesys.com/