Open Stack

Hi,
try to configure nova.conf:

[DEFAULT]
notification_driver=messaging

BR


2015-04-16 11:04 GMT+02:00 Eduard Matei <eduard.matei at cloudfounders.com>:

>
>
> Hi,
>
> I've been trying to enable nova notifications on various actions, but
> nothing is actually sent.
> I found the cause in the _notify method
> of /usr/local/lib/python2.7/dist-packages/oslo_messaging/notify/notifier.py.
> There it performs a check "if self._driver_mgr.extensions" which always
> returns False.
> I removed the check and i found the following traceback in n-api:
>
>
> 2015-04-16 10:58:17.955 ERROR nova.notifications
> [req-2909db4c-30f4-4278-8472-ec5c9440778f admin admin] [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05
> f] Failed to send state update notification
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f] Traceback (most recent call last):
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]   File
> "/opt/stack/nova/nova/notifications.py", line
>  151, in send_update
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]     old_display_name=old_display_name)
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]   File
> "/opt/stack/nova/nova/notifications.py", line
>  253, in _send_instance_update_notification
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]     'compute.instance.update',
> payload)
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]   File
> "/usr/local/lib/python2.7/dist-packages/oslo_
> messaging/notify/notifier.py", line 231, in info
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]     self._notify(ctxt, event_type,
> payload, 'INFO')
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]   File
> "/usr/local/lib/python2.7/dist-packages/oslo_
> messaging/notify/notifier.py", line 313, in _notify
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]     super(_SubNotifier,
> self)._notify(ctxt, event_ty
> pe, payload, priority)
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]   File
> "/usr/local/lib/python2.7/dist-packages/oslo_
> messaging/notify/notifier.py", line 186, in _notify
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]     self._driver_mgr.map(do_notify)
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]   File
> "/usr/local/lib/python2.7/dist-packages/steve
> dore/extension.py", line 221, in map
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]     raise RuntimeError('No %s
> extensions found' % se
> lf.namespace)
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f] RuntimeError: No
> oslo.messaging.notify.drivers exten
> sions found
> 2015-04-16 10:58:17.955 TRACE nova.notifications [instance:
> a902da95-6b42-4f71-a55e-818c1d02c05f]
>
>
>
> Looking in oslo directory and trying to import that module
> (oslo.messaging.notify.drivers) but no success, that module doesn't exist.
>
> Anyone knows how to enable the notifications ?
>
> I found also in the Notifier __init__ the following:
>
>  self._driver_mgr = named.NamedExtensionManager(
>             'oslo.messaging.notify.drivers',
>
> What should i put there so that the extensions can be loaded ? ( i tried
> with oslo.messaging._drivers but same error: No oslo.messaging._drivers
> extensions found).
>
> Thanks,
> Eduard
>
>
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