Previously the records of alarm history were never expired, leading potentially to database bloat where there was a lot of churn on the alarm state. It would be more convenient for alarm history records to be configurably expired via the usual TTL-style config option.
blueprint appears to be marked as completed https://blueprints.launchpad.net/ceilometer/+spec/delete-alarmhistory
Verified according test plan with aodh*-1.1.2-1.el7ost.noarch
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. https://rhn.redhat.com/errata/RHEA-2016-0603.html