Kamailio dynamic logging level

 Yet another method to get dynamic logging level on Kamailio. Means to change logging level on the fly.

First to mention - already built-in method for Kamailio inside corex module. But this one could be very verbose.

Other method is to specify level in xlog command explicitly.

kamailio.cfg

#!KAMAILIO

# Level for realtime logging for messages. To see debug messages in realtime, set it to 2
realtime.debug_level=5

...

debug=2

...

request_route {

    $var(debug_level) = $(sel(cfg_get.realtime.debug_level){s.int});

    ...

    xlog("$var(debug_level)", "This is a debug message\n");

}

And than just adjust this debug_level config variable via shell

# kamcmd cfg.set realtime debug_level 2

to get all xlog messages to be printed, or set it to the greater value like

# kamcmd cfg.set realtime debug_level 5

to get em suppressed.  

You can expand this method to have bigger levels of verbosity via different variables, but usually it's enough like this.

P.S.: Also, as an alternative (or build-in method) there is a possibility to use corex module functionality