Hello,
I don't have multicast in my environment. I started out using unicast
but strict unicast configuration of gmond is really painful in my
experience. I then found that I could use multicast in a non-multicast
environment on Solaris and just let it all become broadcast. So now I
have gmond's on each subnet working together via broadcast, however I
need to "bridge" the gmond's together.
For example, if I have one "cluster" spanning 5 subnets, all the gmond's
on a given subnet communicate find utilizing broadcast. My assumption
was that on the headnode I simply add a "udp_send_channel {}" section
for one or more headnodes on each subnet... but thats not working:
#### Example
udp_send_channel {
port = 8649
host = 10.10.1.20
}
udp_send_channel {
port = 8649
host = 10.10.2.20
}
/* Feel free to specify as many udp_send_channels as you like. Gmond
used to only support having a single channel */
udp_send_channel {
mcast_join = 239.2.11.71
port = 8649
ttl = 1
}
/* You can specify as many udp_recv_channels as you like as well. */
udp_recv_channel {
mcast_join = 239.2.11.71
port = 8649
bind = 239.2.11.71
}
/* You can specify as many tcp_accept_channels as you like to share
an xml description of the state of the cluster */
tcp_accept_channel {
port = 8649
}
####
This would be easiest if I could just specify multiple gmond's for
gmetad to query, but without that ability I'm uncertain how to
proceed. I could, of course, designate each subnet as a seperate
cluster, but I really need to aggregate all the data regardless of
subnet. I'm assuming this has come up in large cluster installations in
the past but don't see anything in the archives.
Hints or pointers are appreciated.
benr.
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