This fix prevents a potential failure of ceilometer-upgrade during an Openstack upgrade.
Prior to this fix, the ceilometer-upgrade sometimes failed during an OSP11-OSP12 upgrade because it ran before gnocchi-upgrade.
If you upgraded to OSP12 without this fix and ceilometer-upgrade failed, delete /etc/gnocchi/gnocchi.conf from the bootstrap node and re-run the upgrade process with the fixed package.
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.