i won't lie, i don't remember opening that bug.lol it actually might be related to this previous fix: https://github.com/openstack/ceilometer/commit/de5ff7303d6f278ef37149297bbb7d2e77f45a0d
On 12/10/16 08:49 PM, Jake Yip wrote: > Hi all! > > We've been trying to get gnocchi working us, and have been hitting some > performance bottlenecks. It seems that the 'host' field for the instance > resource-type flaps between host id and host names. This makes the > gnocchi dispatcher calls an update per resource which is a HTTP PATCH > call. The large amount of HTTP calls causes gnocchi to be unable to keep > up with ceilometer, essentially making it unworkable for us in production. > > I've tried removing this update code and can get ~5x the performance. So > I guess the questions are, > > 1) why is the host information flapping? Are there difference services > generating this data? > > 2) If gnocchi data can be viewable by the user, should we only have host > id in the resource? (similar to what nova shows to user) > > 3) Anyone running gnocchi in prod, can you let us know how is it going? > > Any pointers to track down this issue will be appreciated! There is a > bug[1] open for this issue but I hope this email can reach more people. > > FYI, we are running Mitaka ceilometer and gnocchi, but we have patched > ceilometer to use the Newton gnocchi dispatcher to help with performance. > > [1] https://bugs.launchpad.net/ceilometer/+bug/1569037 > > Jake Yip, > DevOps Engineer, > Core Services, NeCTAR Research Cloud, > The University of Melbourne > > > __________________________________________________________________________ > OpenStack Development Mailing List (not for usage questions) > Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > -- gord __________________________________________________________________________ OpenStack Development Mailing List (not for usage questions) Unsubscribe: openstack-dev-requ...@lists.openstack.org?subject:unsubscribe http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev