Open Stack

On 19/04/17 03:05 PM, Hui Xiang wrote:
> Hi folks,
>
>   I am posting some self-defined events to amqp ceilometer exchange
> notification topic, during the debug session, I find that at the first
> time, event are arriving at notification bus as the AMQPIncomingMessage,
> and then handled by EventsNotificationEndpoint() , however, the second
> time, neither the AMQPIncomingMessage or the EventsNotificationEndpoint
> can see it, but it does can list from ceilometer event-list. So I wonder
> how is the event processing with the same event type?
>

not sure what version you are using, but basic workflow since mitaka (i 
think) is the notification agent listens to 'notifications.*' topics on 
specific exchanges (including) ceilometer. for events, it attempts to 
match incoming message against known events[1]. it will build event 
based on definition. if there is no, definition, it will create a sparse 
event with a few attributes. from there it is processed according to 
pipeline[2]. you'll noticed by default it pushes to gnocchi so it won't 
get stored in ceilometer/panko storage. you can edit it accordingly.

[1] 
https://github.com/openstack/ceilometer/blob/master/ceilometer/pipeline/data/event_definitions.yaml
[2] 
https://github.com/openstack/ceilometer/blob/master/ceilometer/pipeline/data/event_pipeline.yaml

cheers,
-- 
gord