My guess is that it isn't. And I don't know why. Using ps gives me this. 

root        47   0.0  0.1    27884    816  ??  Ss   10:46PM   0:00.04 /opt/local/bin/daemondo --label=mysql5 --start-cmd /opt/local/etc/LaunchDaemons/org.macports.mysql5/mysql5.wrapper start ; --stop-cmd /opt/local/etc/LaunchDaemons/org.macports.mysql5/mysql5.wrapper stop ; --restart-cmd /opt/local/etc/LaunchDaemons/org.macports.mysql5/mysql5.wrapper restart ; --pid=/opt/local/var/mysql.pid

running the script by hand gives me this. 

/opt/local/etc/LaunchDaemons/org.macports.mysql5/mysql5.wrapper start
Starting MySQL/opt/local/share/mysql5/mysql/mysql.server: line 159: kill: (580) - No such process

the offending line 159? 

    152 wait_for_pid () {
    153   i=0
    154   while test $i -ne $service_startup_timeout ; do
    155     sleep 1
    156     case "$1" in
    157       'created')
    158         test -s $pid_file && i='' && break
    159         kill -0 $2 || break # if the program goes away, stop waiting
    160         ;;
    161       'removed')

and I get these messages now: 
Workaround Bonjour: Unknown error: 0

I don't think they are anything to do with mysql, perhaps apache2 since it doesn't do zeroconf stuff like the vendor-supplied httpd. 
-- 
Paul Beard / www.paulbeard.org/
<paulbeard@gmail.com/paulbeard@mac.com>