[collectd] network plugin doesn't re-resolve hostname ever

[Thorsten von Eicken]

It looks like the network plugin doesn't re-resolve the hostname of a 
server ever. I have >300 hosts sending collectd data to a server and I 
need to move the server to a different IP address. Right now it looks 
like I have to restart every single collectd daemon out there so it 
picks up the new DNS resolution for the server. Ouch! IMHO collectd 
should re-resolve the server IP address every 5-10 minutes.
    Thorsten