[syslog-ng]io.c: do_write: write() failed (errno 146), Connection refused

[Vaningh, Ronny]

My syslog-ng sometimes dies with the following message
Apr  8 11:20:02 local@loghost syslog-ng[18617]: io.c: do_write: write()
failed (errno 146), Connection refused

I`m writing to a file on a local disk and forwarding over udp to a plain
unix syslog server

destination pix { file("/prod/log/$HOST/pix.log"
                create_dirs(yes) );
                };
destination blah { udp(1.2.3.4); };
#
# Lets chain everything together
#
log { 
        source(net); 
        filter(f_pix);
        destination(pix);
        destination(blah);
        };

Any idea what is causing this


Thanks


Ronny