Re: [Xen-API] Fwd: Getting VM stats

[jdsw <jdsw2002@xxxxxxxxx>]

I understand that mechanism for collecting data might be different and specific. But the transport and API to get that information can be standardised. For example, a way to push some structured data on xenbus and make it accessible  through Xend api.

Also, I am not sure, if the email that I fwd got other questions about, how to get certain basic metrics through Xend instead of using combination of Xend API, Memory Maps, parsing files for VBD and n/w information.
/Jd

"Daniel P. Berrange" <berrange@xxxxxxxxxx> wrote:
>  On Tue, Dec 19, 2006 at 09:54:10AM -0800, jdsw wrote:
> > Do you guys have any suggestion ?
> >   (I did not get satisfactory answers to each of the questions on dev forum)
> >    
> >   In addition is there a plan for a streamlined access to things happening 
> > in Domu information
>  through Dom0. For example: Top process information in a 
> > DomU available through Dom0 ?
>
> The Xen-API work is really about management of Dom0 and DomU VMs as opaque
> entities viewed from Dom0. Collecting OS specific details about work going on 
> inside the DomU (eg processes running, detailed breakdown of CPU & memory
> usage) is best handled by a dedicated monitoring API. It has very different
> requirements of that of Xen-API, in particular from a performance / overhead
> POV. There are a wide variety of existing OS monitoring tools which can be
> deployed inside DomUs, Big-Sister, Nagios, Ganglia, to name but three such
> tools.
>
> Regards,
> Dan.
> -- 
> |=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
> |=-           Perl modules: http://search.cpan.org/~danberr/              -=|
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