Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.
For information on the advisory, and where to find the updated
files, follow the link below.
If the solution does not work for you, open a new bug report.
As far as I remember, these two comments are about the same thing. We need to configure selinux to allow ceilometer, otherwise it can't write to NFS.
I guess it was a simple
>sudo setenforce 0