[Engine-devel] [vdsm] Proposal VDSM <=> Engine Data Statistics Retrieval Optimization

[Dan Kenigsberg]

On Fri, Mar 08, 2013 at 09:37:03AM +0100, Vinzenz Feenstra wrote:
<snip>
> >>>
> >>>
> >>>      Improvement of the Guest Agent:
> >>>
> >>>As part of the proposed solution it is necessary to improve the
> >>>guest agent as well.
> >>Improving the agent may be a good idea, but I do not see the necessity
> >>in it.
> The guest agent is doing 'expensive' queries (e.g.
> "application_list") way too often. And things like network
> interfaces, disk usage and installed applications won't usually
> change every n minutes.
> Those queries could be much more reactive then proactive.

Of course, but as I said:

> >>It's also important to improve the horrible multithreaded
> >>vdsm/libvirt statistics acquisition, but just as unrelated to the core
> >>of this feature.

I think it is misleading to include this in the discussion about
vdsm/Engine interface change.