[openstack-dev] [ceilometer] Pollsters and counters
yunhong.jiang at intel.com
Thu Jan 17 11:16:38 UTC 2013
> -----Original Message-----
> From: Julien Danjou [mailto:julien at danjou.info]
> Sent: Thursday, January 17, 2013 5:13 PM
> To: Jiang, Yunhong
> Cc: openstack-dev at lists.openstack.org
> Subject: Re: [openstack-dev] [ceilometer] Pollsters and counters
> On Thu, Jan 17 2013, Jiang, Yunhong wrote:
> > a) as discussed before, the pipeline definition should not be changed in
> > deployment unless expert user. While in deployment, user may want to
> > some counter specifically.
> I don't think we are sure about that. The pipeline definition is also
> going to configure the periodicity of pollsters for example. It's really
> likely that it's going to be modified.
> AFAIK the assupmtion that the pipeline is not going to be modified has
> been asserted because it seems that the pipeline is going to be complex
> for publisher like CloudWatch because of the amount of transformers
> If this is a problem, this is likely to be hidden in another way, like
> the ability of defining a transformer based on several transformer (some
> sort of macro).
> > b) If we really have several publishers (3 or 4, or even more), that means
> > user have to excluded the counters in each pipeline definition and that's
> > not so convenient. After all, pipeline is mostly a per-publisher
> > configuration.
> I don't think it's really a problem to disable counters when you have 3
> or 4 publishers. People configuring 3 or 4 publishers will have to know
> what they're doing.
The pipeline for CloudWatch will not be very simple at least in my previous patch series :) But yes that the administrator should be qualified to modify it.
> > BTW, I noticed the glance pollster is one counter per pollster while swift
> > pollster is all counters in one pollster. I think we need keep it same for
> > all resource pollster.
> Yes, don't worry, we know the current state is not ideal. But it's
> working, that's already a good point. :)
Totally agree that we already have a good point ......
> Julien Danjou
> -- Free Software hacker & freelance
> -- http://julien.danjou.info
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