Contents

#encoding: utf-8

class Riemann::Babbler::Plugin::Cpu < Riemann::Babbler::Plugin

  def init
    @old_cpu = Hash.new
    plugin.set_default(:service, 'cpu usage')
    plugin.set_default(:per_processor, false)
    plugin.states.set_default(:warning, 70)
    plugin.states.set_default(:critical, 85)
  end

  def collect
    array = Array.new
    File.read('/proc/stat').split("\n").each do |cpu_line|

      # проверяем есть строчка /cpu\d+/ или /cpu / и сграбливаем это в переменную
      cpu_number = cpu_line.scan(/cpu(\d+|\s)\s+/)
      next if cpu_number.empty?
      cpu_number = cpu_number[0][0] == ' ' ? '_total' : cpu_number[0][0]

      # работаем со строкой
      cpu_line[/cpu(\d+|\s)\s+(\d+)\s+(\d+)\s+(\d+)\s+(\d+)/]
      _, u2, n2, s2, i2 = [$1, $2, $3, $4, $5].map { |e| e.to_i }

      unless @old_cpu[cpu_number].nil?
        u1, n1, s1, i1 = @old_cpu[cpu_number]
        used           = (u2+n2+s2) - (u1+n1+s1)
        total          = used + i2-i1
        fraction       = used.to_f / total
      end

      @old_cpu[cpu_number] = [u2, n2, s2, i2]
      # _total идет с трешхолдом, а все остальное без трешхолда
      if cpu_number == '_total'
        array << {
            :service => plugin.service + " cpu#{cpu_number}", :metric => fraction, :description => "Cpu#{cpu_number} usage\n"
        } if fraction
      else
        array << {
            :service => plugin.service + " cpu#{cpu_number}", :metric => fraction, :description => "Cpu#{cpu_number} usage\n", :state => 'ok'
        } if fraction && plugin.per_processor
      end
    end
    array
  end

end

Version data entries

51 entries across 51 versions & 1 rubygems

Version	Path
riemann-babbler-2.0.0pre11	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre10	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre9	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre8	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre7	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre6	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre5	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre4	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre3	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre2	lib/riemann/babbler/plugins/cpu.rb
riemann-babbler-2.0.0pre1	lib/riemann/babbler/plugins/cpu.rb