Thank you for clarifying it. But in my SLES environment, following the suse install guide:
# openstack-config --set /etc/nova/nova.conf DEFAULT notification_driver nova.openstack.common.notifier.rpc_notifier # openstack-config --set /etc/nova/nova.conf DEFAULT notification_driver ceilometer.compute.nova_driver the nova.openstack.common.notifier.rpc_notifier is overwrite by ceilometer.compute.nova_notifier, but ceilometer meter-list still can show instance and instance.flavor. I'm confused. On Thu, Jan 16, 2014 at 3:49 AM, Doug Hellmann <doug.hellm...@dreamhost.com>wrote: > > > > On Wed, Jan 15, 2014 at 1:32 PM, ZhiQiang Fan <aji.zq...@gmail.com> wrote: > >> Hi, >> >> When read Ceilometer install guide[1], the multi valued option >> notification_driver is set to two drivers, My question is that is the first >> one, which means nova.openstack.common.notifier.rpc_notifier, necessary? >> what will happen if it is removed? >> > > If the rpc notifier is not configured in nova's settings, then nova will > not send notifications to the message bus and ceilometer will not have data > to record about nova resources. > > > >> Note, it is not configured even in Nova installation, but is set in >> Ceilometer compute agent configuration part. >> > > The rpc notifier isn't required for nova to operate by itself, only for > the integration with ceilometer. > > Doug > > > >> >> I already read the link of SystemUsageData[2], NotificationSystem[3], >> but still get no idea. >> >> Please help, thanks >> >> [1] >> http://docs.openstack.org/havana/install-guide/install/apt/content/ceilometer-install-nova.html<http://docs.openstack.org/havana/install-guide/install/apt/content/ceilometer-install-nova.html> >> [2] https://wiki.openstack.org/wiki/SystemUsageData >> [3] https://wiki.openstack.org/wiki/NotificationSystem >> -- >> blog: zqfan.github.com >> git: github.com/zqfan >> >> _______________________________________________ >> OpenStack-dev mailing list >> OpenStack-dev@lists.openstack.org >> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev >> >> > > _______________________________________________ > OpenStack-dev mailing list > OpenStack-dev@lists.openstack.org > http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev > > -- blog: zqfan.github.com git: github.com/zqfan
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