We've installed munin monitoring on one of our servers. Generally it seems to be working well but occasionally, 4 times in 2 months to be exact, munin-cron has generated the following error:
[FATAL] There is nothing to do here, since there are no nodes with any plugins. Please refer to http://munin-monitoring.org/wiki/FAQ_no_graphs at /usr/share/munin/munin-html line 38
On searching for this error I can only find issues where munin is not working at all, rather than the intermittent problem that we're facing.
Some help preventing this error or how to debug it would be much appreciated.
We're running CentOS 5.5, Munin 1.4.5 installed using yum.