describes where the hostname is located in the libvirt metadata. The default is
I</instance/name/text()>.
-=item B<Instances> B<integer>
-
-How many read instances you want to use for this plugin. The default is one,
-and the sensible setting is a multiple of the B<ReadThreads> value.
-If you are not sure, just use the default setting.
-
=item B<ExtraStats> B<string>
Report additional extra statistics. The default is no extra statistics, preserving