Plugins » Discovery

We don't have an unique index on DB level, just in Rails level and a second NIC with same MAC can sneak in. The relevant code in core is:

validate :mac_uniqueness, :if => Proc.new { |nic| nic.managed? && nic.host && nic.host.managed? && !nic.host.compute? && !nic.virtual? && nic.mac.present? }

which will not trigger for Discovery at all (host is not managed). In discovery we try to search for existing host and if not found, we will create new discovered host. This does not work correctly, we have turned off validator for some reason:

host.save(:validate => false) if host.new_record?

So the validation for uniqueness won't hit.