Public bug reported:
With https://review.openstack.org/#/c/436094/ we began using different
transport URLs for Nova internal services.
That said, as notifications emit on a different topic but use the same
transport URL than the component, it leads to our consumers missing
notifications as they only subscribe to the original MQ.
While Nova can use multiple MQs, we should still offer the possibility
to have global notifications for Nova so a consumer wouldn't require to
modify their configs every time a new cell is issued.
That can be an oslo.messaging config option, but we certainly need to be
more gentle in Devstack or depending jobs (like for Vitrage) could fail.
** Affects: nova
Importance: Undecided
Status: Confirmed
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https://bugs.launchpad.net/bugs/1700496
Title:
Notifications are emitted per-cell instead of globally
Status in OpenStack Compute (nova):
Confirmed
Bug description:
With https://review.openstack.org/#/c/436094/ we began using different
transport URLs for Nova internal services.
That said, as notifications emit on a different topic but use the same
transport URL than the component, it leads to our consumers missing
notifications as they only subscribe to the original MQ.
While Nova can use multiple MQs, we should still offer the possibility
to have global notifications for Nova so a consumer wouldn't require
to modify their configs every time a new cell is issued.
That can be an oslo.messaging config option, but we certainly need to
be more gentle in Devstack or depending jobs (like for Vitrage) could
fail.
To manage notifications about this bug go to:
https://bugs.launchpad.net/nova/+bug/1700496/+subscriptions
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