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Thinking using inotify/configuration file changes to implement dynamic meters, this would be limited to administrators of ceilometer itself (i.e. with write access to the file) rather than the project administrators (as defined by keystone roles). Thus, as a project administrator who is not the cloud admin, I could not enable/disable the meter for a project only.

It would mean that scripting meter on/off would not be possible if there was not an API to perform this.

Not sure if these requirements are significant and the associated impact on implementation complexity, but they may be relevant in scoping out the blueprint and subsequent changes

Tim

From: Doug Hellmann [mailto:doug.hellmann at dreamhost.com]
Sent: 06 January 2014 23:35
To: OpenStack Development Mailing List (not for usage questions)
Subject: Re: [openstack-dev] [Ceilometer] Dynamic Meters in Ceilometer



On Tue, Dec 31, 2013 at 4:53 AM, Kodam, Vijayakumar (EXT-Tata Consultancy Ser - FI/Espoo) <vijayakumar.kodam.ext at nsn.com<mailto:vijayakumar.kodam.ext at nsn.com>> wrote:
Hi,

Currently there is no way to enable or disable meters without restarting ceilometer.

There are cases where operators do not want to run all the meters continuously.
In these cases, there should be a way to disable or enable them dynamically.

We are working on this feature right now. I have also created a blueprint for the same.
https://blueprints.launchpad.net/ceilometer/+spec/dynamic-meters

We would love to hear your views on this feature.

There isn't much detail in the blueprint. Do you have a more comprehensive document you can link to that talks about how you intend for it to work?

Doug



Regards,
VijayKumar Kodam




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