Hi,
Maybe the event transformer is needed in some use cases to generate new
events or do transformations like the samples handling. but for this
timeout event alarming requirement, the 'timeout' of alarms will be
various, it not a good idea of changing event_pipeline.yaml to generate
new events based on events timeout when we need an event-timeout alarm.
and also, the access of event pipeline definitions to users is
inadvisable. I personally think it'd better to implement the second
option and based on Ryota's proposal.
Best Regards
Liusheng
在 2015/8/5 3:36, gord chung 写道:
hi Igor,
i would suggest you go with second option as i believe your
implementation will overlap and reuse some of the functionality Ryota
would code for his alarm spec [1]. also, since Aodh is working on an
independent release cycle, it'll give you some more time as i don't
think we'd be able to get this into Liberty if we went the pipeline route.
[1]
http://specs.openstack.org/openstack/ceilometer-specs/specs/liberty/event-alarm-evaluator.html
On 04/08/2015 10:00 AM, Igor Degtiarov wrote:
Hi folks,
On our meatup we agreed to add timeout event alarms [1](Event-Base
Alarming part).
In ToDo task "Сhoose the optimal way for timeout alerting implementation"
Now we have two proposition for implementation:
- first is to add timeout param in event pipeline (transformer part)
[2]
-- weakness of this approach is that we cannot allow user change
config files, so only administrator will be able to set rules for
timeout events alarms, and that is not what we are expecting from alarms.
- second is additional optional parameters in event alarms
description like sequence of required events and timeout threshold.
Event alarm evaluator looks thru getting events and evaluates alarm
if even one event from required sequence isn't received in set
"timeout".[3]
It seems that second approach is better it doesn't have restrictions
for end user.
Hope for your help in choosing optimal way for implementation.
(In specs review there is silence now)
[1]
https://wiki.openstack.org/wiki/Meetings/Ceilometer/Liberty_Virtual_Mid-Cycle
[2] https://review.openstack.org/#/c/162167
[3] https://review.openstack.org/#/c/199005
Igor Degtiarov
Software Engineer
Mirantis Inc.
www.mirantis.com <http://www.mirantis.com>
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gord
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