Munin-cron is a part of the package Munin, which is used in combination with munin-node.
Munin is a group of programs to gather data from Munin’s nodes, graph them, create html-pages, and optionally warn Nagios about any off-limit values.
“munin-cron” runs the following programs, in the given order:
Unless the munin master is configured otherwise, “munin-cron” should run every 5 minutes.
Limit services to <service>. Multiple –service options may be supplied. [unset]
Limit hosts to <host>. Multiple –host options may be supplied. [unset]
Use <file> as configuration file. [/etc/munin/munin.conf]