Thanks Matt,
I'll try the ginsu knife :-)
Joe
matt massie wrote:
Today, Joe Griffin wrote forth saying...
Can I have different groups if the nodes are on
the same cluster (ie the first 3 parts of the IP address are the same)?
ganglia is both a ginsu knife and super glue for clusters without the 3
easy payments of $19.95.
ginsu knife
-----------
to split up a cluster into groups simply change the multicast channel the
nodes are sending/receiving messages on in /etc/gmond.conf (for example)
mcast_channel 239.2.11.101
this will make the gmond on the node listen for other gmond's on the
239.2.11.101 multicast channel and no others.
in gmetad then, you just pick one of more nodes from each group and add
them to the gmetad_sources file.
super glue
----------
you may also want to merge together smaller clusters separated by
unicast-only routes into a single cluster. in that case, simple set the
name of each cluster to be the same in /etc/gmond.conf (for example)
name "My Cluster with Nodes All over the Place"
when gmetad pulls the data from all the different data sources it merges
all clusters with the same name together.
make sense?
-matt
