[openstack-dev] [Ceilometer]Cumulative metrics resetting

Adrian Turjak adriant at catalyst.net.nz
Thu Jan 30 12:31:06 UTC 2014

On 30/01/2014 23:31, Julien Danjou wrote:

>> On the other hand, would it be possible to setup a notification based metric
>> that updates cumulative metrics, or triggers a poll right before the
>> reset/shutdown/suspension/terminate, so we have an entry right before it
>> resets and don't lose any data? This would pretty much solve the issue, and
>> as long as it is documented that the cumulative metrics reset, this would
>> solve most problems.
> Yes, we have the nova notifier plugin doing exactly that. :)

Awesome! But where in the source are they? As the only two notification 
plugins that seem to exist on the compute agent are for cpu and 
instance. Is there meant to be one that handles 
network.outgoing/incoming updates on those VM state changes?

On Havana I know those network notifier plugins aren't there, so I 
assume master then and possibly going towards icehouse.

I'll have a play with it again, but last time i did a clean devstack off 
of master, notification plugins weren't working at all for me. Has 
anyone else had this issue?

Sorry for all the questions, just poking at ceilometer and trying to get 
data from it that I can be sure I can trust, and use for billing. I 
don't mind digging in the source, or even extending/fixing things, just 
need to know where to look.

-Adrian Turjak

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