Ganglia Client Setup

All nodes need to run gmond. This documentation has been updated for ganglia version >= 3. To install gmond on a client do the following:

Install ganglia-gmond available at /opt/mirror/rpms/extras/ganglia:
# cd /opt/mirror/rpms/extras/ganglia
# rpm -iv ganglia-gmond-3*.i386.rpm
The rpm annoyingly immediately starts the service before you have a chance to configure it. So stop it. At the same time reset its runlevel so that it doesn't run at runlevel 2:
# /etc/init.d/gmond stop
# checkconfig --del gmond
# checkconfig --level 345 on
Generate a configuration file. It is possible to generate a version 3 file from an older version 2 gmond.conf file:
# /usr/sbin/gmond --convert /etc/gmond.conf \ >/etc/gmond.conf.3
The following parameters need to be set in the configuration file /etc/gmond.conf:

cluster -> name - the name of the source group of elements that this node belongs to. The current set of available names is:

cluster -> owner - the top level name of the cluster (Triumf Grid)
udp_send_channel -> mcast_join - the multicast channel that this node should be a part of. Do not use the default channel. The channel addresses here are:

udp_send_channel -> mcast_if - the multicast ethernet interface for this machine. It should be the interface on the private network if the machine is multi-homed.
udp_recv_channel -> mcast_join (like send channel above)
udp_recv_channel -> mcast_if (like send channel above)
acl -> trusted_hosts - the IP address of the ganglia server node. Since lcfg is the server node you should use the private IP address: 192.168.1.250
Obviously for a client node that is not on the private network you should use instead lcfg's public interface.

Once the configuration file is correct, launch the service:
# /etc/init.d/gmond start