Munin contributed plugins

#!/usr/bin/env ruby

#

# Be sure to configure this node in the plugin configuration

# Memory stats must be run by root

# Ex:

# [passenger_memory]

# user root

# env.memory_stats_command path_to_passenger-memory-stats

#

memory_stats_command = ENV['memory_stats_command'] || '/opt/ruby-enterprise-1.8.6-20080810/bin/passenger-memory-stats'

if ARGV.length > 0 && ARGV[0] == 'config'

  puts "graph_title Passenger Memory Usage"

  puts "graph_category webserver"

  puts "graph_vlabel MB"

  puts "apache_rss.label Apache Dirty RSS"

  puts "passenger_rss.label Passenger Dirty RSS"

  exit(0)

end

apache_rss = nil

passenger_rss = nil

`#{memory_stats_command}`.each_line do |line|

  next unless /### Total private dirty RSS: (\d+\.\d+) MB/.match(line)

  passenger_rss = $~[1] unless apache_rss.nil?

  apache_rss ||= $~[1]

end

puts "apache_rss.value #{apache_rss}"

puts "passenger_rss.value #{passenger_rss}"