Munin is a networked resource monitoring tool that can help analyze resource trends and "what just happened to kill our performance?" problems. It is designed to be very plug and play. A default installation provides a lot of graphs with almost no work.
In Norse mythology Hugin and Munin are the ravens of the god king Odin. They flew all over Midgard for him, seeing and remembering, and later telling him.
"Munin" means "memory".
|Please go first to the FAQ Page if you landed here to fix an issue.|
2013-05-23: Munin 2.1.0 is released. This is the first release of the new unstable branch.
2013-03-22: Munin 2.0.12 has been released. It mostly fixes TLS/SSL transport. The release can be downloaded from usual places.
Munin the monitoring tool surveys all your computers and remembers what it saw. It presents all the information in graphs through a web interface. Its emphasis is on plug and play capabilities. After completing a installation a high number of monitoring plugins will be playing with no more effort.
Using Munin you can easily monitor the performance of your computers, networks, SANs, applications, weather measurements and whatever comes to mind. It makes it easy to determine "what's different today" when a performance problem crops up. It makes it easy to see how you're doing capacity-wise on any resources.
Munin uses the excellent RRDTool (written by Tobi Oetiker) and the framework is written in Perl, while plugins may be written in any language. Munin has a master/node architecture in which the master connects to all the nodes at regular intervals and asks them for data. It then stores the data in RRD files, and (if needed) updates the graphs. One of the main goals has been ease of creating new plugins (graphs).
This site is a wiki as well as a project management tool. We appreciate any contributions to the documentation. While this is the homepage of the Munin project, we will still make all releases through Sourceforge.
Munin can always need more help. Please see the list of tasks if you're looking for something to do.
Due to spam robots hammering Trac installations (like this site), some filtering has been installed, and registration & password changing has been disabled. Come over to IRC if you'd like an account : we'll be very happy.
Munin is written in Perl and plugins are easy to write. "Porting" to or from any Unix platform is quite easy if you have some Perl/shell/sysadmin experience. Currently we have plugins for Linux, FreeBSD, NetBSD, Solaris, AIX - and of course cross-platform plugins.
In addition you can use alternate Munin-node implementations on embedded systems such as :
- OpenWRT (written in minimal perl)
- Muninlite (written in shell script)
- Poor Man's Munin Node written in Perl.
- MuninExchange plugin catalog
- Old Plugin Catalog
- Future Plans
- Wish List
- tasks if you're looking for something to hack
If you use Munin, please join our mailinglist:
subscribe to the munin-users list (English)
subscribe to the munin-users-de list (German)
subscribe to the munin-users-jp list (Japanese)
Please also consult the list archives. Your Munin issue may have been discussed already.
munin-users list archive (English)
munin-users-de list archive (German)
munin-users-jp list archive (Japanese)
Planet Munin aggregates blog posts and other munin-related information avaiable via RSS.
Internet Relay Chat
If you use IRC, please join #munin on the OFTC network.
If you prefer the FreeNode network, we did setup a bidirectional relay bot that connect both #munin channels. It's name is "m-r-b" (as MuninRelayBot).
All versions are available from Sourceforge
Munin is also available in FreeBSD ports and in repositories for (at least) the following Linux distributions: Debian, Ubuntu, Fedora (Extras), Red Hat, Red Hat Enterprise Linux, Mandriva, and Gentoo.