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". News 2009-12-30: Munin 1.4.3 has been released. This is a bugfix release. ChangeLog is here. It can be downloaded from our SVN (tags/1.4.3) and from SourceForge. Thanks again to everyone that has sent problem reports and contributed! 2009-12-16: Munin 1.4.2 has been released. This is a bugfix release. ChangeLog is here. It seems likely that we'll keep on fixing bugs for a couple more releases. It can be downloaded from our SVN (tags/1.4.2) and from SourceForge. Thanks again to everyone that has sent problem reports and contributed! 2009-12-04: Munin 1.4.1 has been released. This is a bugfix release that fixes one lockup condition related to multigraph plugins, it re-instates warning and critical levels in the Linux df plugins (which makes them again send alerts when disks fill up if you have that configured). ChangeLog is here. It can be downloaded from our SVN (tags/1.4.1) and from SourceForge. Thanks to everyone that has sent problem reports and contributed! 2009-11-27: We're happy to announce that Munin 1.4.0 is released! ChangeLog is here and draft announcement is here. It can be downloaded from our SVN (tags/1.4.0) and from SourceForge. Many thanks to ALL the contributors, there have been many! About Munin 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. Contributing 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. Please let us know if the spam filters affect your regular use of this web site. We also disabled wiki and ticket modification by anonymous users. If you wish to remain anonymous please log in as "human" with password "IllBeGood" to edit wiki pages or tickets. To create a personal account please click the small "Register" link in the upper right corner.

Support Please read HowToGetHelp. Documentation FAQ Documentation MuninExchange plugin catalog Old Plugin Catalog Future Plans Wish List tasks if you're looking for something to hack Mailing lists If you use Munin, please join our mailinglist: subscribe to the munin-users list (English) subscribe to the munin-users-de list (German) 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) Examples An example munin installation - Live Download All versions are available from Sourceforge Stable: 1.4.0 Download from Source Forge Changelog SVN access is available 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, and Gentoo. Supported OSes 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 run Munin-node on embeded systems such as OpenWRT (written in minimal perl) and Muninlite (written in shell script). And Windows.