While not a billing system. Rackspace (and some others) use StackTach to collect accurate (and verified) usage data from Nova and Glance.
https://github.com/stackforge/stacktach
We're getting close to GA for our new StackTach architecture (v3), which we will be demoing at the Paris summit.
If you're going to be there, look for us ... would love to chat about your requirements :)
Cheers
-Sandy
________________________________________
From: Frans Thamura [frans at meruvian.org]
Sent: Tuesday, September 23, 2014 3:39 AM
To: openstack at lists.openstack.org
Subject: [Openstack] Billing System Recommendation
hi all
any recommendation for billing openstack and contact person
we plan for openstack for ISP next month with several openstack vendor
in Jakrata
and we miss this feature
Frans
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