I am currently taking over a Ganglia setup thats on our grid(s), and
am having trouble making the Ganglia setup a little more specific to
the clusters. Before, all hosts were in one cluster, and now I'm
trying to break out the various hosts into different clusters.
Originally, they all had the same multicast configuration, probably
from the same --default_config output on gmond. Now, I've modified
two hosts to be in a different cluster, and changed the
udp_send_channel mcast_join IP address as well as the cluster
{ name } parameter. Even after that, both gstat and the PHP web pages
insist there is still one cluster, and the two systems I've moved to
the new cluster show up as "down". I'm really confused about why the
gmetad on the PHP web server isn't picking up the new multicasts, and
why the gmond's on the systems I've changed over still see multicast
traffic from the other nodes which are on a different multicast IP.
I've restarted the gmond and gmetad on both sets of hosts multiple
times with no success, and even removed (backed up) the rrds
directory on the PHP server multiple times.
Can anyone help with this conundrum?
Ian
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Ian Bonnycastle
Systems Administrator
Center for Language and Speech Processing
Johns Hopkins University
