On Mon, Jun 1, 2015 at 1:00 PM, Sergey <svin...@apple.com> wrote:
> It also contradicts the Gmond topology described in the O’Reily book 
> “Monitoring with Ganglia” (p.22 Fig. 2-3).

I don't see how.  I'm looking at a copy of the book right now, and
Figure 2-3 has three gmonds:  two (deaf) gmonds that send to a third
gmond (mute) that aggregates them. There's nothing about
retransmitting or relaying metrics at all.  Gmond doesn't retransmit
metrics, except when polled via TCP (which is usually from gmetad).


> Hi Peter,
>
> It’s very sad. It also contradicts the Gmond topology described in the 
> O’Reily book “Monitoring with Ganglia” (p.22 Fig. 2-3).
> The main disadvantage of this is the fact that we have to build 2 parallel 
> monitoring structures (gnome and show) with separate ports and flows, which 
> are joined only in the central collection point.
> Is it possible to modify Gmond agent to join Gmond and Sfow data locally on 
> every monitored computer?
>
> Thanks!
> Sergey
>
>> On May 30, 2015, at 10:07 PM, Peter Phaal <peter.ph...@gmail.com> wrote:
>>
>> Sergey,
>>
>> gmond does not retransmit the sFlow metrics it receives. A single
>> gmond instance is used a central collector for a cluster of machines
>> running Host sFlow agents. gmetad uses a TCP connection to retrieve
>> the cluster stats from the single gmond instance and update the RRDs.
>>
>> Peter
>>
>> On Fri, May 29, 2015 at 10:02 AM, Sergey <svin...@apple.com> wrote:
>>> Hi Vladimir,
>>>
>>> This is very serious question - is GMOND supposed to retransmit metrics 
>>> received from the local HSFLOWD agent or it just saves them locally for 
>>> further retrieving via TCP connection?
>>> What is the initial project for this?
>>>
>>> Thanks!
>>> Serfey Vinnik
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-- 
Jesse Becker

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