Description

cfgutils route_if_exists can leak when
1: using a $var or $avp
2: some functions are called within the called route

Troubleshooting

Reproduction

Note the route is executed from rtimer in case this is part of the problem somehow.

modparam("rtimer", "timer", "name=tmetrics;interval=9;mode=1;")
modparam("rtimer", "exec", "timer=tmetrics;route=test")

example :

route[dummy] {
        xinfo("[dummy]");
        statsd_gauge("dummy_1xx", $stat(1xx_replies));
}
route[test] {
        $var(route_name) = "dummy";
        route_if_exists($var(route_name));
]

working alternative

route[dummy] {
        xinfo("[dummy]");
        statsd_gauge("dummy_1xx", $stat(1xx_replies));
}
route[test] {
        $var(route_name) = "dummy";
        if (check_route_exists($var(route_name))) {
                     route($var(route_name));
       } 
}

Debugging Data

kamcmd pkg.stats you can see the `real_used` of the timer process with leak every time the route is called

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