Hey list;
so here's the scoop: i have a server running 1 gmetad and 3 instances of gmond,
(as i understand it, a "master" gmond needs to be running to forward data to
gmetad for each cluster?) intending to gather data from hosts of 3 different
specifications on 3 separate subnets and sort them into 3 different clusters in
the same grid. this is all using unicast as i couldn't get multicast to work
for even a single cluster.
basically any client gmond running on a server in the same subnet as the
gathering server (including itself) works perfectly fine; however, any client
gmond running on a host on a different subnet than the gmetad / gmond master
server for that cluster does not work at all. using tcpdump i have found that
the packets do arrive at the correct port on the master server, the packets
just don't seem to make it to gmetad for processing / storage. any ideas?
running gmonds or gmetads in debug mode don't provide me with any useful
information about my issue.
also, is there a way to make the "master" not show up in each cluster?
**SERVER CONFIG FILES FOR REFERENCE**
gmetad.conf:
#debug_level 9999
data_source "servers" 192.168.212.102:8650
data_source "workstations" 192.168.212.102:8649
data_source "blades" 192.168.212.102:8648
gridname "NYC"
server_threads 10
case_sensitive_hostnames 1
gmond.conf (working subnet):
globals {
daemonize = yes
setuid = yes
user = ganglia
debug_level = 0
max_udp_msg_len = 1472
mute = no
deaf = no
allow_extra_data = yes
host_dmax = 0 /*secs */
cleanup_threshold = 300 /*secs */
gexec = no
send_metadata_interval = 5
}
cluster {
name = "servers"
owner = "unspecified"
latlong = "unspecified"
url = "unspecified"
}
host {
location = "nyc"
}
udp_send_channel {
host = 192.168.212.102
port = 8650
ttl = 1
}
udp_recv_channel {
port = 8650
bind = 192.168.212.102
}
tcp_accept_channel {
port = 8650
}
<snipped the metrics>
gmond2.conf (only client registering is the master host, which i'd like to not
happen, but would like to first get the other clients on there):
globals {
daemonize = yes
setuid = yes
user = ganglia
debug_level = 0
max_udp_msg_len = 1472
mute = no
deaf = no
allow_extra_data = yes
host_dmax = 0 /*secs */
cleanup_threshold = 300 /*secs */
gexec = no
}
cluster {
name = "workstations"
owner = "unspecified"
latlong = "unspecified"
url = "unspecified"
}
host {
location = "nyc"
}
udp_send_channel {
host = 192.168.212.102
port = 8649
ttl = 1
}
udp_recv_channel {
port = 8649
bind = 192.168.212.102
}
tcp_accept_channel {
port = 8649
}
<snipped again the metrics>
gmond3.conf (same deal, the master shows up as a client but nothing else):
globals {
daemonize = yes
setuid = yes
user = ganglia
debug_level = 0
max_udp_msg_len = 1472
mute = no
deaf = no
allow_extra_data = yes
host_dmax = 0 /*secs */
cleanup_threshold = 300 /*secs */
gexec = no
send_metadata_interval = 0 /*secs */
}
cluster {
name = "blades"
owner = "unspecified"
latlong = "unspecified"
url = "unspecified"
}
host {
location = "nyc"
}
udp_send_channel {
host = 192.168.212.102
port = 8648
}
udp_recv_channel {
port = 8648
bind = 192.168.212.102
}
tcp_accept_channel {
port = 8648
}
<snipped>
**CLIENT CONFIG FILE FOR REFERENCE**
globals {
daemonize = yes
setuid = yes
user = ganglia
debug_level = 0
max_udp_msg_len = 1472
mute = no
deaf = no
host_dmax = 0 /*secs */
cleanup_threshold = 300 /*secs */
gexec = no
}
cluster {
name = "workstations"
owner = "unspecified"
latlong = "unspecified"
url = "unspecified"
}
host {
location = "nyc"
}
udp_send_channel {
host = 192.168.212.102
port = 8649
ttl = 1
}
udp_recv_channel {
port = 8649
}
tcp_accept_channel {
port = 8649
}
<snipped>
etc etc. the other non working subnet's port 8648, the config file looks the
same with the port number changed as appropriate.
any help would be greatly appreciated guys,
-DY ------------------------------------------------------------------------------
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