Thanks Robin! That's exactly what I needed.
On Tue, Mar 13, 2018 at 3:12 AM Robin Humble <rjh+gang...@cita.utoronto.ca>
wrote:
> Hi Dmitry,
>
> On Fri, Mar 09, 2018 at 08:11:08PM +0000, Dmitry Akselrod wrote:
> >2. As I am collecting the metrics for the remote hosts on my utility
> >hosts, the Ganglia website will show my utility host as the node name for
> >all the metrics. That all makes sense since gmetad is polling the gmond
> >on my utility host and the gmond on my utility host is storing the
> >metrics. Is there a way to override the hostname for the specific metric
> >I am collecting via SNMP? I would like the Ganglia cluster to have a
> node
> >for each of the appliance I am polling via my SNMP module with its metrics
> >assigned to it. It seems like it should be theoretically possible since
> >gmond can aggregate metrics from multiple hosts. I am just not sure how
> >to get to get to this programmatically.
>
> rather than use a gmond python module, you could probably accomplish
> what you want using external python program that gathers up all your
> SNMP data and then spoofs it into ganglia using gmetric.py.
> https://github.com/ganglia/ganglia_contrib/tree/master/gmetric-python
>
> the data will appear to be coming from another host even though you
> are inserting it all into ganglia from your utility host.
> https://github.com/ganglia/monitor-core/wiki/Gmetric-Spoofing
>
> eg.
> g = gmetric.Gmetric( gmondHost, gmondPort, gmondProtocol )
> spoofStr = ip + ':' + host
> g.send( name, '%.2f' % d, 'float', unit, 'both', 60, 0, "", spoofStr )
>
> I do this for a bunch of 'out of band' data like node temps, fans,
> infiniband traffic, filesystem traffic, etc.
>
> the only quirk in doing it this way is that if a host is down then this
> spoof'd data will make it appear like it's still up. but for pure 'fake'
> hosts like it sounds like you have, then that's probably what you want.
>
> cheers,
> robin
>
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