[syslog-ng] Syslog-ng & pipe question

[syslogyk]

  Hi!

Could you please help me with this question?

I have the following strings in my syslog-ng.conf:

source src {
        internal();
        unix-dgram("/dev/log");
        unix-dgram("/var/lib/named/dev/log");
};
... skipped ...
filter f_debug { level(debug); };
destination d_yuri { pipe("/dev/yuri_pipe"); };
log {
        source(src);
        filter(f_debug);
        destination(d_yuri);
};

With this configuration, I execute the following commands in the first console:

mkfifo /dev/yuri_pipe
cat /dev/yuri_pipe

On the other console I generate an event (for instance, "logger blablabla"). And cat /dev/yuri_pipe on the first console outputs nothing.

What's wrong in my syslog-ng.conf? Can I get events in my pipe? 

Thank you in advance,
                       Yuri
P.S. Sorry, if you receive this message twice.