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How to make Nova send notifications?

asked 2014-12-11 09:37:32 -0600

updated 2014-12-12 02:01:49 -0600

Which options are needed in nova.conf to have notifications about instance create and delete appear in the queue in AMQP? The nova.conf on the compute hosts should be updated too? Which nova services do I need to restart?

Oslo documentation, here: says to set notification_driver tonova.notifier.rabbit_notifier. I did that to no effect.

Ceilometer documentation (and other places) says to use this value: notification_driver=nova.openstack.common.notifier.rpc_notifier , that points to a file that no longer exists. Even the Ops guide seems to contain obsolete instructions (look at the StackTack section):

Other values are suggested here and there, not one works. Adding print() in the code I can see some "update" notifications that are sent, but then I cannot see them from amqp.

EDIT: To clarify: I tried with nova.openstack.common.notifier.rpc_notifier. It does not work for me, I see notifications from Neutron, but nothing from nova. Anyway that option is deprecated and there is no such module in nova, just some compatibility code in Oslo.

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answered 2014-12-11 11:59:54 -0600

bishoy gravatar image

this is my conf in nova.conf on both controller and compute and I can see notifications.

  • notification_driver = nova.openstack.common.notifier.rpc_notifier
  • notification_topics = notifications

I hope that helps

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For some reason, in RabbitMQ the binding between the nova exchange and the queue was not there, so messages were not being routed. Once I fixed that, these options made it work.

venza gravatar imagevenza ( 2014-12-12 05:01:01 -0600 )edit

answered 2014-12-12 00:21:25 -0600

notification_driver = nova.openstack.common.notifier.rpc_notifier notification_topics = notifications

in nova.conf and restart nova-api

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Asked: 2014-12-11 09:37:32 -0600

Seen: 1,296 times

Last updated: Dec 12 '14