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Cheers,
NM
-- 
Nick Maslov
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On November 29, 2013 at 12:43:26 PM, Eoghan Glynn (eglynn at redhat.com) wrote:


Hi Nick,  

I'm planning to add rate-per-second meters deriving from the  
cumulative disk and network meters:  

https://blueprints.launchpad.net/ceilometer/+spec/rates-derived-from-cumulative  

However, the intent is to average these over the polling period,  
which typically would be in the range 60s to 600s, and not to  
incur the cost of sub-second hypervisor polling.  

Cheers,  
Eoghan  

----- Original Message -----  
> Hi,  
>  
> Well, that is the problem exactly - I need to get info every second to track  
> traffic bursts, i.e. depth of precision should be on seconds level. So, in  
> my case I`ll have to either poll it every second - or approximate it by  
> computing an average…  
>  
> Thanks a lot for your answers!  
>  
> NM  
> --  
> Nick Maslov  
> Sent with Airmail  
>  
>  
>  
> On November 29, 2013 at 11:47:50 AM, Julien Danjou ( julien at danjou.info )  
> wrote:  
>  
>  
> On Fri, Nov 29 2013, Nick Maslov wrote:  
>  
> Hi Nick,  
>  
> > How do you think, is it a right way to meter such data with ceilometer? I  
> > mean, such statistics should be transferred to collector each second, and  
> > in  
> > case of >1000 VM`s can easily bring down database. How do you think?  
>  
> You don't _have to_ poll every seconds, you can poll every minute and  
> compute an average. That really depends on what precision you need.  
>  
> You can do the same things with the existing samples provided by  
> Ceilometer.  
>  
> --  
> Julien Danjou  
> /* Free Software hacker * independent consultant  
> http://julien.danjou.info */  
>  
> - signature.asc, 851 bytes  
>  
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