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Varnish plugins for munin monitoring

Plugins Version 1

These plugins are originally taken from muninexchange to have a git repository to check out on every munin node

Installation

on your munin node do:


cd /usr/share/munin/plugins (or your munin plugins directory)
sudo git clone git://github.com/basiszwo/munin-varnish.git
sudo chmod a+x /usr/share/munin/plugins/munin-varnish/varnish_*
sudo ln -s /usr/share/munin/plugins/munin-varnish/varnish_* /etc/munin/plugins/

change your munin node config and add the following to /etc/munin/plugin-conf.d/munin-node


[varnish*]
user root

restart your munin node:


sudo /etc/init.d/munin-node restart

Munin graphs

Munin graphs for varnish v1

Plugin Version 2

This munin plugin for Varnish 2.x has been removed from the varnish repostory. You may find it in the official munin repository

As it was a bit tricky to get this plugin running I want to share my experiences with it.

Installation

on your munin node do:


cd /usr/share/munin/plugins (or your munin plugins directory)
sudo git clone git://github.com/basiszwo/munin-varnish.git
sudo chmod a+x /usr/share/munin/plugins/munin-varnish/varnish2_

Depending on what you want to monitor link the varnish2_ script to one of the following:

hit_rate, request_rate, objects, backend_traffic, transfer_rates, threads, memory_usage, uptime, vcl_and_purges, expunge, vcl_and_purges, lru, allocations, shm, shm_writes, session, session_herd, objoverflow, esi, hcb, obj_sendfile_vs_write, losthdr, objects_per_objhead

Recommended


ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_hit_rate
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_request_rate
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_objects
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_backend_traffic
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_transfer_rates
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_threads
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_memory_usage
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_uptime
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_vcl_and_purges

Interesting depending your setup


ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_expunge; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_vcl_and_purges; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_lru; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_allocations; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_shm; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_shm_writes; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_session; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_session_herd; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_objoverflow; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_esi; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_hcb; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_obj_sendfile_vs_write; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_losthdr; 
ln -s /usr/share/munin/plugins/varnish2_ /etc/munin/plugins/varnish2_objects_per_objhead;

Configuration for munin node

Config file is /etc/munin/plugin-conf.d/munin-node


[varnish2_*]
  user root
  env.varnishstat varnishstat
  env.name

restart your munin node:


sudo /etc/init.d/munin-node restart

Munin graphs

Munin graphs for varnish v2

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varnish http proxy cache plugins for munin

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