Change Munin Hostname

If you need to change the hostname of an existing munin node with a lot of data, and you want to retain all this existing historical data, follow this procedure:

Stop service and deactivate all munin crons:

1
2

vim /etc/cron.d/munin-node
vim/etc/cron.d/munin

1

cd /var/lib/munin/drobot.de/

Legend:
relay.drobot.de > old host name
jump.drobot.de > new host name

Go one directory higher and please make a backup of the rrd-files directory and go on with:

1

rename -v 's/relay/jump/' relay.*

Finally remove the old HTML directory:

1

rm -rf /var/www/html/munin/relay.drobot.de

Edit

1

vim /etc/munin/munin.conf

and rename your host in the host definition section:

1
2
3

[jump.drobot.de]
    address 192.168.3.1
    use_node_name yes