Hi, I am using ganglia 3.0.1 and trying to monitor a cluster on unicast traffic with one node configured as a head node and other hosts reporting to it. I am using port 8651 and configured all nodes as "deaf" except the head node - the gmetad server pulls the data off from the head node. But I seem to get a broken display on the cluster output and some hosts seem to go down and come back up sporadically. Looks like either the server is not receiving the metrics from all the nodes (obviously via the hode node) or it isn't able to display it properly.
The gmetad.conf/gmond.conf are attached. You can view the report at: http://dorado.umd.edu/ganglia gmond.conf (for the head node): /* This configuration is as close to 2.5.x default behavior as possible The values closely match ./gmond/metric.h definitions in 2.5.x */ globals { setuid = yes user = nobody cleanup_threshold = 300 /*secs */ #deaf = true } /* If a cluster attribute is specified, then all gmond hosts are wrapped inside * of a <CLUSTER> tag. If you do not specify a cluster tag, then all <HOSTS> wi ll * NOT be wrapped inside of a <CLUSTER> tag. */ cluster { name = "Milagro" } /* 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 host = ara.umd.edu port = 8651 #mcast_if = eth0 } /* You can specify as many udp_recv_channels as you like as well. */ udp_recv_channel { #mcast_join = 239.2.11.71 port = 8651 #bind = 239.2.11.71 #mcast_if = eth0 } /* 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 = 8651 } gmetad.conf data_source "Milagro" ara.umd.edu:8651 # #------------------------------------------------------------------------------- # The name of this Grid. All the data sources above will be wrapped in a GRID # tag with this name. # default: Unspecified gridname "Milagro" # List of machines this gmetad will share XML with. Localhost # is always trusted. # default: There is no default value trusted_hosts 127.0.0.1 ara.umd.edu # If you want any host which connects to the gmetad XML to receive # data, then set this value to "on" # default: off all_trusted on Has anyone faced this before? I am running 3 more clusters and they seem to work just fine. Have a look at : http://cetus.umd.edu/ganglia and that works perfect. But this one at http://dorado.umd.edu/ganglia is all screwed up. I'd appreciate if someone can help me out Thanks, Saurabh
