wiki:WikiStart

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

2014-09-23: Browse description and graph images for Munin Plugins in the New Munin Gallery

2014-05-05: Munin 2.1.7 is released. Unstable version that is using SQL for internal states. First release of the JSON API.

2014-04-22: Munin 2.0.21 is released. It contains a bugfix for a major multigraph issue. The release can be downloaded from our server in the 2.0.21 subdir and from SourceForge.

2014-03-28: Munin 2.1.6.1 is released. Unstable version that is using SQL for internal states. Merges many pulls. No JSON API yet.

2014-03-28: Munin 2.0.20 is released. It contains several bugfixes. The release can be downloaded from our server in the 2.0.20 subdir and from SourceForge.

2014-03-09: Munin 2.1.6 is released. Unstable version that is using SQL for internal states. Fixes CGI HTML

2014-02-05: Munin 2.1.5 is released. It is the second unstable version that is using SQL for internal states . It mostly advances HTML CGI to be almost feature complete.

2013-12-31: Munin 2.1.4 is released. It is the first unstable version that is using SQL for internal states . For now only HTML CGI makes use of it, and it even still isn't feature complete.

2013-12-18: Munin 2.1.3 is released. It is the last unstable version that will be not-SQL based. So it's a safe bet if you want to live on the edge, but not too much.

2013-12-07: Munin 2.0.19 is released. It contains several bugfixes. The release can be downloaded from our server in the 2.0.19 subdir and from SourceForge.

2013-12-02: Munin 2.0.18 is released. It contains several security fixes. The release can be downloaded from GitHub and from SourceForge.

2013-08-12: Short lecture about Munin at DebConf13. Discover some hints about how to scale with 2.0, and the 2.2 roadmap in the slides. DebConf13 was a very nice opportunity to discuss out-of-channel about specific needs of our users. A quite detailed 2.2 roadmap has emerged out of it.

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.

Download

All versions are available from our server or Sourceforge.

The stable branch is the 2.0.x line, development is happening in 2.1.x.

Munin 2.0 is available in repositories for (at least) the following Linux distributions: Debian, Ubuntu, Fedora, Red Hat, Red Hat Enterprise Linux, Mandriva, Gentoo and is also available in FreeBSD ports.

Munin Live

Use Cases


Support

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 use alternate Munin-node implementations on embedded systems such as :

And Windows.

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, and registration & password changing has been disabled. Come over to IRC if you'd like an account : we'll be very happy.

Last modified at 2014-10-18T17:13:45+02:00 Last modified on 2014-10-18T17:13:45+02:00