Hi! My name is Tomas! Just installed ganglia a week ago to monitor my little raspberry pi cluster. I have three issues: 1) I cannot see any cluster summary graphs, only the host-specific ones are populated. Is this normal? How can I see the summary graphs? Summary empty: https://emyro.se/ganglia_fail1.PNG Specific host not empty: https://emyro.se/ganglia_fail2.PNG
2) The hostnames are just IP addresses. Is there anyway to get the hostname? For the hosts I've set the hostname, but only the IP show up? https://emyro.se/ganglia_fail3.PNG 3) I get some very strange readings from the raspberry pi hosts. It says network traffic is spiking at PB/s (lol!) eventhough it's more like MB/s. Any ideas? https://emyro.se/ganglia_fail4.PNG Any help is greatly appreciated! I use the following settings: main node 192.168.22.100 (neptune) raspberry pi 1 ( 192.168.22.102) raspberry pi 2 ( 192.168.22.103) My syslog contains no error messages. gmond.conf (same for all hosts): cluster { name = "my cluster" owner = "unspecified" latlong = "unspecified" url = "unspecified" } udp_send_channel { host=192.168.22.100 port = 8649 ttl = 1 } udp_recv_channel { port = 8649 } gmetad.conf: data_source "my cluster" 15 192.168.22.100:8649
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