Munin is a

free and open-source Free and open-source software (FOSS) is software available under a Software license, license that grants users the right to use, modify, and distribute the software modified or not to everyone free of charge. FOSS is an inclusive umbrella term ...

computer A computer is a machine that can be Computer programming, programmed to automatically Execution (computing), carry out sequences of arithmetic or logical operations (''computation''). Modern digital electronic computers can perform generic set ...

system monitor A system monitor is a hardware or software component used to monitor system resources and performance in a computer system. Among the management issues regarding use of system monitoring tools are resource usage and privacy. Monitoring can tra ...

ing,

network monitoring Network monitoring is the use of a system that constantly monitors a computer network for slow or failing components and that notifies the network administrator (via email, SMS or other alarms) in case of outages or other trouble. Network monitor ...

, and infrastructure monitoring

software application Application software is any computer program that is intended for end-user use not computer operator, operating, system administration, administering or computer programming, programming the computer. An application (app, application program, sof ...

. Munin is written in

Perl Perl is a high-level, general-purpose, interpreted, dynamic programming language. Though Perl is not officially an acronym, there are various backronyms in use, including "Practical Extraction and Reporting Language". Perl was developed ...

and uses

RRDtool RRDtool (''round-robin database tool'') is a data logging and graphing system for time series data. It aims to handle time series data such as computer network, network bandwidth (computing), bandwidth, temperatures or Load (computing), CPU loa ...

to create

graph Graph may refer to: Mathematics *Graph (discrete mathematics), a structure made of vertices and edges **Graph theory, the study of such graphs and their properties *Graph (topology), a topological space resembling a graph in the sense of discret ...

s, which are accessible over a

web interface In the industrial design field of human–computer interaction, a user interface (UI) is the space where interactions between humans and machines occur. The goal of this interaction is to allow effective operation and control of the machine fro ...

. Its emphasis is on

plug and play In computing, a plug and play (PnP) device or computer bus is one with a specification that facilitates the recognition of a hardware component in a system without the need for physical device configuration or user intervention in resolving reso ...

capabilities. About 500 monitoring plugins are currently available. It is intended to make it easy to determine "what's different today" when a performance problem happens and to provide visibility into capacity and utilization of

resource ''Resource'' refers to all the materials available in our environment which are Technology, technologically accessible, Economics, economically feasible and Culture, culturally Sustainability, sustainable and help us to satisfy our needs and want ...

History

Munin was started by Audun Ytterdal and Jimmy Olsen in late 2003, based on RRDtool by Tobi Oetiker. Development has slowed since 2005, but Munin is a stable tool and is still maintained. “Its name is derived from Norse mythology. One of the two ravens who report the news of the world to the god

Odin Odin (; from ) is a widely revered god in Norse mythology and Germanic paganism. Most surviving information on Odin comes from Norse mythology, but he figures prominently in the recorded history of Northern Europe. This includes the Roman Em ...

is called Munin, and the other is named Hugin. Munin is 'memory', and Hugin is 'thought'.”

Architecture

Plugins

Plugins are the specialized programs that are called by Munin nodes to gather and report current data, and describe how it should be presented. There are over 300 plugins in the core distribution, over 180 plugins in the official third-party contributed repository, and an unknown number of independently published plugins. They can be written in any programming or scripting language. All they are required to do is print space separated key and value pairs on

standard output Standard may refer to: Symbols * Colours, standards and guidons, kinds of military signs * Standard (emblem), a type of a large symbol or emblem used for identification Norms, conventions or requirements * Standard (metrology), an object t ...

. This framework makes it trivial to write customized plugins.

References

External links

* {{DEFAULTSORT:Munin (Network Monitoring Application) Free network management software Internet Protocol based network software

History

Architecture

Plugins

See also

References

External links