Buccaneer for Hire. wrote: > > What happens is that when I look at ganglia @ h1, I > see h1 and h2 but never get to see the other nodes in > the private network. I have searched and searched and > tested to to no avail.
Sounds like h1 and h2 are using multicast over the public network, instead of the private cluster network. A multicast host route on your dual-homed machines would work, in order for them to "see" the cluster nodes. On your dual homed head nodes: route add -host (your ganglia mcast address) dev ethN ..where N is the number corresponding to the interface residing in your cluster network, and ganglia mcast address is specified in your gmond.conf (see what you've got for mcast_join). -Matt Cuttler
