openstack team mailing list archive

[Anne Gentle <anne@xxxxxxxxxxxxx>]

Hi Christian (oh hai list) -
I've answered this a few times recently so I think it's useful to post info
to the list. It's a highly requested bit of info. The documentation for
"notifications" could be in a couple different areas. There's the the
spec/blueprint at http://wiki.openstack.org/SystemUsageData. I believe that
project is a work in progress at https://github.com/Cerberus98/yagi. (We
need to work on a doc plan, Yagi peeps.)

Also, here's what a startup did:
"
The way we did it was to keep track of everything ourselves since openstack
didn't provide metering data that we needed.  We would log what size vm was
started and the image id along with the timestamp, and then log when it was
stopped, resized, etc.  There was a reporting API in our tool that
customers could query against to pull that information  out and run reports
for their billing systems.

 Most providers and enterprises that I spoke to were happy with that model
but REALLY wanted data about bandwidth usage which we weren't able to
provide.  Our answer was to correlate the IP of the VM that was running
back with their network monitoring logs for invoicing purposes.  Not the
best answer, but all that we were able to do.

 For our customers that used CA 3Tera AppLogic, it managed everything from
the hypervisor to the virtual networking stack to the app layer and had a
full metering API where we could pull all of the data from.  It wasn't the
best API, but the data was accurate.  Same with vcloud if I remember
correctly."

Also, from NTT Data, Nati Ueno's code for billing is here,
https://github.com/nati/dash_billing
and you can install it using his stack.sh, but it's not fully tested yet)
https://github.com/nati/devstack

I know it's a hotly sought after bit of info. Let me know if this example
is the type of info you seek. I'd also like to work on a doc plan for
gathering this into the admin guides.
Anne

 *Anne Gentle*
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On Thu, Nov 3, 2011 at 2:56 AM, Christian Wittwer <wittwerch@xxxxxxxxx>wrote:

> Hi,
> I'm looking for a simple way to get some usage data out of my nova
> diablo installation.
> I need to know which tenant or user had how much instances running and
> for how long. Exactly the value you have in the dashboard, I guess
> it's called cpu hours.
> To setup a basic accounting I need to get this values over the api, to
> put them into a seperated database.
>
> How can I access these informations through the api?
>
> Cheers,
> Christian
>
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