Comment 1 for bug 1399164

There is currently no best practice solution and we are too close to release of 6.0 right now. So we are putting this into release notes.

In order to apply a fix, user needs to setup cron job for ceilomter-expirer script and change time_to_live parameter to desired value in ceilometer.conf. After that he will need to restart collector service on all the controllers:

On CentOS:

/etc/init.d/openstack-ceilometer-collector restart

On Ubuntu:

/etc/init.d/ceilometer-collector restart

But user should be aware that all the old data will still be created with old ttl value, so if he needs he will need to wipe the data himself.