Jonathan,

  I do it this way.

- run the gmonds on each "cluster" on a dedicated port (per cluster)
- let them cast their messages to a dedicated "aggregator" gmond for each 
cluster
- let gmetad query those "aggregators" on their dedicated ports

 If you want to have one host in different clusters, you can run two gmonds on 
that host, with different port. I never did that, but it should work

Cheers

Martin 
------------------------------------------------------
Martin Knoblauch
email: k n o b i AT knobisoft DOT de
www:   http://www.knobisoft.de



----- Original Message ----
> From: Jonathan Weiss <[email protected]>
> To: [email protected]
> Sent: Fri, July 16, 2010 11:50:08 AM
> Subject: [Ganglia-general] Multiple clusters with unicast
> 
> Cheers,
> 
> 
> I'm using Ganglia with unicast on EC2 (so there is no chance  for
> multicast). I have a typical web-app with load balancers, app  servers
> and database servers.
> Everything is working fine as one Ganglia  cluster with unicast by
> having all local gmonds using udp_send to send to one  monitoring
> server running gmond & gmetad.
> 
> My problem is now that I  would like to list the different roles in my
> cluster in Ganglia. So that I  get a CPU overview for all app-servers
> separated from the CPU report for the  DB servers. I've tried doing
> this by setting a different cluster name in the  local gmonds.
> But it looks like whatever cluster name I have in the gmond of  the
> Monitoring server is overriding this so I end up having only  one
> cluster.
> 
> Is there a way of doing this without having gmetad query  all gmonds?
> 
> BTW can one host be in multiple clusters? So if I have a  server that
> is a app-server and a memcached server could I have it listed in  both
> clusters?
> 
> Regards,
> Jonathan
> 
> -- 
> Jonathan Weiss
> http://blog.innerewut.de
> http://twitter.com/jweiss
> 
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