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<body class='hmmessage'><div dir='ltr'><font size="2" face="sans-serif">> 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 </font><div><font size="2" face="sans-serif">> the start. What's going on here?</font> <div><br></div><div>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.<div><br></div><div>[1] <a href="http://docs.openstack.org/developer/ceilometer/measurements.html#compute-nova" target="_blank">http://docs.openstack.org/developer/ceilometer/measurements.html#compute-nova</a><br><br><font face="Calibri">cheers,<br><i>gord</i></font></div></div></div> </div></body>
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