Alex,

oh dear, it looks like I answered the wrong question *again*.

As I don't have test access to a running ganglia someone else
should answer.

But part of it may be to -
- configure gmetad.conf to poll the failover VIP IP or DNS name,
  not the physical ones.
- Configure each server in the failover pair to send UDP data
  to themselves. Don't use 127.0.0.1 and don't use the floating
  VIP. Use an IP address that stays with the server.
- Now you have to arrange it so that the src address of the
  UDP being looped back maps to the same hostname string when
  doing a reverse lookup DNS on the gmond hosts.
  
Note that the host names in the XML stream that goes to gmetad
are generated by gmond doing a reverse DNS lookup on the src
IPs of the UDP traffic.

There are a few ways you may arrange this.

kind regards,
richard

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