[openstack-dev] [Ceilometer][Nova] basic setting for notification_driver

Doug Hellmann doug.hellmann at dreamhost.com
Wed Jan 15 19:49:06 UTC 2014

On Wed, Jan 15, 2014 at 1:32 PM, ZhiQiang Fan <aji.zqfan at 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.


> 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 at lists.openstack.org
> http://lists.openstack.org/cgi-bin/mailman/listinfo/openstack-dev
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.openstack.org/pipermail/openstack-dev/attachments/20140115/8d212aa0/attachment.html>

More information about the OpenStack-dev mailing list