This node is empty but running in a cluster serving traffic:
http://ganglia.wikimedia.org/latest/?c=Elasticsearch%20cluster%20eqiad&h=elastic1017.eqiad.wmnet&m=cpu_report&r=hour&s=by%20name&hc=4&mc=2
Here is the rest of the cluster:
http://ganglia.wikimedia.org/latest/?c=Elasticsearch%20cluster%20eqiad&m=cpu_report&r=hour&s=by%20name&hc=4&mc=2

Its not exactly what you asked for, but its something.  I imagine the
activity on empty nodes when there is no traffic would be lower but I'm not
sure by how much.

Nik


On Fri, Jul 18, 2014 at 10:01 AM, Glen Smith <[email protected]> wrote:

> In a cluster where there is no client activity happening (no index or
> search requests), how much data, roughly, is being sent between the nodes?
> I was able to find a nice blog post from Njal Karevoll at found.no that
> explained all the transport channels per node, but nothing about the
> steady-state volume of data.
>
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