did anyone have a chance to try out ganglia 2.5.8? http://matt-massie.com/ganglia/ganglia-monitor-core-2.5.8.tar.gz
2.5.8 has support for unicast UDP which many people have requested.
so if you put...
mcast_channel 192.168.0.4
mcast_port 8649
gmond will not choke but instead will unicast it's data to host
192.168.0.4:8649.
i added an alias for mcast_channel called "send_channel" (they two
directives call the exact same callback function). this callback
function automatically detects if you specified a unicast or multicast
address and acts accordingly. there is also an alias for mcast_port
called send_port.
send_channel 192.168.0.4
send_port 8649
would behave exactly identical to the directives above.
i added one new directive called "send_bind". this allows you to
specify which local address to bind to for hosts with multiple network
interfaces.
one caveat. you will likely want to make the gmond sending data "deaf"
otherwise they will open a UDP port on "mcast_port/send_port" to listen
for traffic. there are no access control lists for this UDP port.
-matt
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