10:46 a.m.
----- Original Message -----
From: "Matt Wringe" <mwringe(a)redhat.com>
To: "Discussions around Hawkular development"
<hawkular-dev(a)lists.jboss.org>
Cc: "John Mazzitelli" <mazz(a)redhat.com>
Sent: Friday, 10 February, 2017 11:45:32 AM
Subject: Re: [Hawkular-dev] Collecting PV usage ?
----- Original Message -----
> From: "Thomas Heute" <theute(a)redhat.com>
> To: "John Mazzitelli" <mazz(a)redhat.com>
> Cc: "Discussions around Hawkular development"
> <hawkular-dev(a)lists.jboss.org>
> Sent: Friday, 10 February, 2017 7:55:46 AM
> Subject: Re: [Hawkular-dev] Collecting PV usage ?
>
>
>
> On Fri, Feb 10, 2017 at 1:36 PM, John Mazzitelli < mazz(a)redhat.com > wrote:
>
>
> No. It is on the list though:
>
> https://github.com/hawkular/hawkular-openshift-agent/issues/110
>
> I don't think they are collected by Heapster today
Heapster collects a bunch of filesystem data, I believe its pulling in all
volumes being used which should include PVs.
It includes the usage and limit for each of the volumes being used.
>
> I honestly don't know where to get these persistent volume stats (or any of
> the low level stats) - but I believe its just prometheus data so we should
> be able to get it if we just know the correct URLs. But so far we've been
> concentrating on app metrics coming from user's pods so we haven't worked
> on
> that yet.
>
> Right. I haven't found evidence of a prometheus endpoint yet.
The main prometheus endpoint for each node should be found here
curl -k -H "Authorization: Bearer $ADMIN_TOKEN" -X GET
https://${NODE_IP}:10250/metrics
If we want to collect things like cpu/memory/etc for the pods directly instead of using
heapster, this should be the endpoint to use as well.
The summary endpoint (not Prometheus but json based) that Heapster
uses and
contains volume information, can be found here:
reset;curl -k -H "Authorization: Bearer $ADMIN_TOKEN" -X POST -d
'{"num_stats":1}' https://${NODE_IP}:10250/stats/summary
I think you can get the same information from the prometheus endpoint here
that you can from the summary one, but it might be a bit tricky to parse
things out. But it could also be possible that the summary endpoint is
including new information.
>
> It doesn't seem straightforward, but an important data to expose. I'm
> afraid
> that it will depend on the storage solution being used (to see the actual
> usage)
>
>
> Thomas
>
>
>
>
> ----- Original Message -----
> > Mazz,
> >
> > in your metric collection adventure for HOSA have you met a way to see
> > the
> > usage of PVs attached to a pod ?
> > User should know (be able to visualize) how much of the PVs are used and
> > then be alerted if it reach a certain %.
> >
> > Thomas
> >
>
>
> _______________________________________________
> hawkular-dev mailing list
> hawkular-dev(a)lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/hawkular-dev
>