Bug 1395586

Summary: [RFE] Remove Nova polling from compute agent when Gnocchi is used.
Product: Red Hat OpenStack Reporter: Mehdi ABAAKOUK <mabaakou>
Component: openstack-ceilometerAssignee: Mehdi ABAAKOUK <mabaakou>
Status: CLOSED ERRATA QA Contact: Sasha Smolyak <ssmolyak>
Severity: unspecified Docs Contact:
Priority: unspecified    
Version: 11.0 (Ocata)CC: achernet, fbaudin, jruzicka, nlevinki, pkilambi, sclewis, srevivo
Target Milestone: Upstream M3Keywords: FutureFeature, Triaged
Target Release: 11.0 (Ocata)   
Hardware: Unspecified   
OS: Unspecified   
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Fixed In Version: openstack-ceilometer-7.0.0-0.20170120174042.eb97060.el7ost Doc Type: If docs needed, set a value
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Clone Of: Environment:
Last Closed: 2017-05-17 19:46:51 UTC Type: Bug
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
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Description Mehdi ABAAKOUK 2016-11-16 09:31:20 UTC 
Now, nova writes the instance metadata on the compute via the libvirt metadata API. We can leverage that in Ceilometer to retrieve the instance metadata from libvirt instead of polling the Nova API.

The down-side is that metadata are not complete. But when Gnocchi is used as backend, this is not an issue since Gnocchi doesn't store resource metadata aside of the measurements. And the missing informations are still retrieved with the other Nova API polling done by the central agent that have all the informations and will fully update the resource information in Gnocchi.
Comment 1 Mehdi ABAAKOUK 2017-01-04 15:17:49 UTC 
https://review.openstack.org/#/c/397654
https://review.openstack.org/#/c/413236
Comment 7 errata-xmlrpc 2017-05-17 19:46:51 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHEA-2017:1245