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Re: [pcp] PCP libvirt PMDA

To: Marko Myllynen <myllynen@xxxxxxxxxx>
Subject: Re: [pcp] PCP libvirt PMDA
From: Nathan Scott <nathans@xxxxxxxxxx>
Date: Tue, 6 Sep 2016 02:39:45 -0400 (EDT)
Cc: Martins Innus <minnus@xxxxxxxxxxx>, pcp developers <pcp@xxxxxxxxxxx>
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In-reply-to: <d1983e3c-60d0-effb-15f3-f266aac54c98@xxxxxxxxxx>
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Reply-to: Nathan Scott <nathans@xxxxxxxxxx>
Thread-index: Ds0L/BnjMpSlE9xZiJ7lcGJPjtSBoA==
Thread-topic: PCP libvirt PMDA
Hi Marko,

----- Original Message -----
> Hi,
> 
> On 2016-07-27 06:55, Nathan Scott wrote:
> > ----- Original Message -----
> >> On July 24, 2016 at 9:03:16 PM, Nathan Scott (nathans@xxxxxxxxxx) wrote:
> >>
> >>> It tends to be block devices and network interfaces that are problematic,
> >>> not CPUs FWIW - these are added and removed more commonly.
> >>
> >> We havenât started logging any nodes with this pmda, just starting to
> >> figure
> >> out what is useful, but whatever the final choice is, it would be ideal if
> >> pmlogger would automatically pickup any new devices.  So if the pmlogger
> 
> Great point, thanks for bringing it up.
> 
> > Yes, this isn't going to work in the current code - we'll need to fix this.
> 
> The current git code doesn't expose individual devices so there's
> nothing to fix there. What is needed is someone (tm) to implement an
> enhancement to expose those per-device metrics should they be deemed
> interesting/needed (which seems to be the case) in the most robust
> manner (which now is obvious: instead of dynamic metric names I
> initially proposed use instances).

+1

Sorry, I was confused by the per-interface networking metrics discussion, but
I see now those changes were not yet merged.

cheers.

--
Nathan

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