> In a normal DevStack install, each Compute instance causes one Ceilometer Sample every 10 minutes. Except, there is an extra one every hour. And a lot of extra ones at > the start. What's going on here? instance is one meter which is generated through both polling and notifications (see *origin* column[1]). when you create/update/delete an instance in Nova, it will generate a set of notifications relating to the instance. Ceilometer listens to those notifications and generates samples from them. [1] http://docs.openstack.org/developer/ceilometer/measurements.html#compute-nova cheers, gord -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140730/173c4b8f/attachment.html>