Comment 1 for bug 1616738

Pollster for network internal traffic (n1,n2) https://review.openstack.org/#/c/9977/
Fixes AttributeError of FloatingIPPollster https://review.openstack.org/#/c/27975/
According to the above two patches in ceilometer, we known that the three pollsters about network.bw.in, network.bw.out and network.floating have been updated. Then the name of sample metadata attribute is named 'resource_meatedata' rather than 'metadata'. And the resource_meatedata only has little useful information, almost of information are in sample's other attributes. So we had better to deal with them respectively.